Researchers synthesized the composite by using D- or L-cysteine as chiral inducers during a seed-regrowth process for gold nanorods, followed by deposition of cerium oxide nanoparticles. Circular dichroism measurements detected distinct signals for the D and L materials but none for the mixed D/L version, showing that the particles retained their handedness after coating. Electron microscopy showed that the composites retained a rod-like structure, while X-ray photoelectron spectroscopy identified coexisting Ce3+ and Ce4+ states associated with cerium oxide’s reversible redox chemistry. Coating the nanorods shifted their main optical absorption peak by 13 nanometres and slightly reduced their aspect ratio. A methoxypolyethylene glycol thiol surface layer was then added; it reversed the particles’ slightly positive zeta potential to slightly negative values and reduced hemolysis below 5% at the tested concentration of 100 micrograms per millilitre, including during near-infrared irradiation.

Light absorption made the gold component an efficient heater. Under 808 nm irradiation at 0.8 watts per square centimetre for 10 minutes, the photothermal conversion efficiencies were 52.6% for D-AuHNRs, 52.3% for L-AuHNRs and 48.4% for the mixed material. Adding cerium oxide lowered these values to 47.6%, 46.9% and 42.8%, respectively, but temperature rises still increased with particle concentration and laser power. The composites also retained their heat-generating performance through five consecutive laser on-off cycles. This physical photothermal strategy differed from reactive-oxygen-based photodynamic treatment: the nanorods killed bacteria through localized heating without relying on photogenerated reactive oxygen species that could also damage surrounding tissue. The authors described the bacterial killing mechanism as purely photothermal, distinguishing it from a photodynamic approach that generates cytotoxic reactive oxygen species.

Cerium oxide supplied the composite’s antioxidant function, which was intended to counter the excessive reactive oxygen species already present at infected wounds. In chemical assays, adding cerium oxide improved the scavenging rates of D-, L- and mixed AuHNRs. Relative to unloaded nanorods, the loaded material increased ABTS radical scavenging by 18.2% and hydroxyl-radical scavenging by 38.9% in the reported comparisons. Methylene blue degradation, tetramethylbenzidine oxidation and a salicylic acid colorimetric assay produced consistent results. The mixed D/L composite was also tested because it lacked a detectable chiral signal, providing a comparison for determining whether stereoselective interactions contributed to biological performance rather than simply reflecting the composition of the particles. CeO2 loading also reduced the nanorods’ near-infrared absorption and heat generation somewhat, showing that the antioxidant and photothermal functions were integrated rather than completely independent of one another.

Laboratory tests against Staphylococcus aureus and Escherichia coli showed that illumination was the dominant antibacterial driver. Bacterial suspensions containing the nanomaterials at 100 micrograms per millilitre were kept in darkness or irradiated for 10 minutes; colony counting, fluorescence staining, scanning electron microscopy and biofilm assays then assessed survival and structural damage. Without light, the D form was the most active against S. aureus, whereas only the D- and L-AuHNRs@CeO2 materials showed detectable activity against E. coli. Under near-infrared irradiation, every chiral configuration showed strong antibacterial activity against both organisms. Live/dead staining indicated extensive bacterial death, and crystal violet measurements showed reduced biofilm biomass. Confocal reconstructions revealed that illuminated biofilms became looser and thinner than controls, while a membrane-potential dye indicated severe depolarization after treatment with D-AuHNRs@CeO2 plus light. The same treatment also reduced the biomass of mature S. aureus and E. coli biofilms that had been cultured for 48 hours before treatment.

Microscopy and binding experiments indicated that the D configuration changed how the composite interacted with bacteria. Under illumination, treated bacteria showed collapsed membranes and leakage of intracellular contents, while nanoparticles were visibly attached to S. aureus cells. Fluorescein-labelled D-AuHNRs@CeO2 overlapped strongly with DNA staining in both bacterial species, whereas the L and mixed particles showed weaker overlap and remained largely outside the cells. Isothermal titration calorimetry gave the D composite lower dissociation constants for binding to the bacterial strains than the L and mixed configurations, consistent with stronger stereoselective association. D-AuHNRs@CeO2 also produced more heating near S. aureus after unbound particles were removed, suggesting that localization at the cell wall concentrated thermal energy. Quantification of nucleic acid and protein release showed increased leakage from both bacterial species, with especially high values after near-infrared irradiation and D-AuHNRs@CeO2 treatment. Together, these observations provided a mechanistic account for the stronger activity of the D formulation: preferential association with bacteria combined with more concentrated photothermal heating.

In mammalian cells, the D composite also performed better at reducing oxidative stress and promoting repair-related responses. After L929 fibroblasts were exposed to 2 millimolar hydrogen peroxide, DCFH-DA fluorescence and flow cytometry showed markedly lower intracellular reactive oxygen species after treatment with AuHNRs@CeO2; the D formulation produced the weakest signal. Scratch assays found greater migration by both L929 fibroblasts and human umbilical vein endothelial cells after 24 hours with D-AuHNRs@CeO2 than in the stressed controls. The D composite also increased messenger RNA expression of the antioxidant enzyme CAT and the repair-related factor TGF-β1 in L929 cells, and increased MMP1 expression in endothelial cells. These measurements showed effects on cultured-cell behaviour and gene expression under experimentally induced oxidative stress, rather than direct evidence of faster healing in patients. The investigators selected 100 micrograms per millilitre as the working concentration after hemolysis and cell-viability testing indicated that methoxypolyethylene glycol modification improved compatibility with living cells.

Cellular imaging suggested that oxidative stress influenced how the particles were taken up. Under stressed conditions, fluorescence from D-AuHNRs@CeO2 strongly colocalized with DAPI-stained cellular regions, while the L and mixed materials showed much less internalization; under normal culture conditions, signals from all three were concentrated around the cell periphery. In lipopolysaccharide-stimulated RAW264.7 macrophages, the D composite reduced expression of the M1-associated markers iNOS and IL-6 and increased the M2-associated markers CD206 and Arg-1. The authors interpreted these findings as evidence that oxidative-stress-dependent uptake enabled intracellular antioxidant activity and shifted macrophages toward a more pro-repair phenotype. The experiments were performed in cultured cell lines and did not establish how the same behavior would occur in an infected human wound. Nevertheless, the cellular results linked three measured functions: uptake of the D formulation, reduced oxidative stress and altered marker expression associated with macrophage polarization.

The strongest preclinical outcome came from infected full-thickness wounds in female BALB/c mice aged 6 to 8 weeks. Each 8-millimetre dorsal wound was inoculated with 0.1 millilitres of S. aureus at 10^7 colony-forming units per millilitre, and animals were randomly assigned to control, near-infrared, D-, L- or mixed-composite groups, with or without light. Treatments were applied on days 1 and 3, and wounds were monitored through day 12. D-AuHNRs@CeO2 plus near-infrared irradiation produced the fastest closure and the lowest bacterial counts, outperforming the non-irradiated groups and the corresponding L and mixed formulations. Colony counts were obtained from wound sites on days 3, 6, 9 and 12. A separate E. coli wound model, which included levofloxacin hydrochloride as a positive control, produced a comparable antibacterial ranking, with the D composite plus light showing the strongest effect among the tested nanoplatform groups. These results extended the antibacterial findings from culture assays to two bacterial infection models, while remaining limited to laboratory animals.

Histological examination was consistent with improved repair rather than simple suppression of infection. Control wounds retained heavy inflammatory infiltration, epidermal injury and loose connective tissue, whereas D-AuHNRs@CeO2 plus light showed a flatter wound surface, fewer inflammatory cells, nascent granulation tissue, new vessels, hair follicles and sebaceous glands. Masson’s trichrome staining showed that, by day 12, the same group had densely organized collagen fibers and a nearly continuous, thick epidermis with high keratinocyte density. Body weight changed only slightly across groups, and examinations of the heart, liver, spleen, lungs and kidneys reportedly showed no significant lesions. These observations support biocompatibility within the reported mouse experiments, but the material remains a preclinical experimental platform: the study did not test human wounds, and its findings do not demonstrate clinical benefit or establish whether the treatment would perform similarly in people.

Subject of Research: Preclinical testing of a chiral gold nanorod–cerium oxide nanoplatform for antibacterial and antioxidant wound healing.

Article Title: Synergistic photothermal and antioxidant effects of chiral gold helical nanorods @CeO 2 nanomaterials for accelerated infected wound healing

Article References: Xu, J., Li, Q., Kan, W., Liu, W., Liu, C., Liu, Q., Gao, J., Yan, K., Huang, C., & Wang, J. (2026). Synergistic photothermal and antioxidant effects of chiral gold helical nanorods @CeO2 nanomaterials for accelerated infected wound healing. Materials Today Bio, 41, Article 103754. https://doi.org/10.1016/j.mtbio.2026.103754

Image Credits: AI Generated

DOI: 10.1016/j.mtbio.2026.103754

Keywords: chiral nanomaterials, gold nanorods, cerium oxide, photothermal therapy, infected wounds, antibacterial materials, reactive oxygen species, tissue regeneration, macrophage polarization, mouse model, Synergistic, photothermal

The experiment included seven treatments comprising single and co-inoculations formulated in talc-based carriers. The researchers applied the inoculants to mungbean, Vigna radiata L., and measured plant growth, nodulation, chlorophyll content, yield attributes, grain and straw yields, and grain protein. At harvest, they also measured soil enzyme activities, microbial biomass carbon, available nutrients, soil organic carbon stocks, and populations of bacteria, fungi, and phosphate-solubilizing bacteria. Multivariate analyses were used to compare the treatment responses across the measured variables.

Co-inoculation affected several components of plant development and production rather than grain yield alone. In addition to the reported increases in nodulation, grain yield, and straw yield, the study found enhanced grain nutritional quality, assessed through grain protein. The abstract does not provide the absolute grain and straw yields, the magnitude of the change in grain protein, or the exact statistical significance of each response. It therefore supports the reported differences among treatments but does not establish that the same percentage gains will occur under other growing conditions.

The harvest measurements also showed changes in the biological and chemical properties of the rhizosphere. Co-inoculation enhanced enzyme activities and microbial biomass, which the researchers interpreted as evidence of improved rhizosphere nutrient cycling. The combination of Bradyrhizobium sp. with Pantoea agglomerans increased soil organic carbon stocks by 40.06% and microbial biomass carbon by 21.28%. Populations of bacteria, fungi, and phosphate-solubilizing bacteria increased two- to five-fold during crop growth. Together, these observations associate the tested inoculant combinations with greater microbial abundance and activity around mungbean roots, although the reported results do not identify a specific mechanism for the yield responses.

The findings are limited to the particular strains, carrier formulations, and environmental conditions represented by this field experiment. The study compared seven treatments, but the supplied results do not describe multi-location or multi-season replication, and they do not establish how the inoculants would perform in different soils or climates. The authors therefore called for additional multi-season and multi-location trials to determine whether the benefits remain consistent across environments and over time. Subject to that limitation, the research provides evidence that combining Bradyrhizobium with selected PGPR can improve mungbean productivity, measured grain quality, and rhizosphere biological functioning under the tested conditions.

Subject of Research: Effects of bacterial co-inoculation on mungbean yield, grain protein and rhizosphere functioning

Article Title: Synergistic effects of Bradyrhizobium and PGPR bioinoculants on yield, nutritional quality, and rhizosphere functioning of mungbean

Article References: Gupta, D., Pareek, N., Chandra, R., Raverkar, K. P., Sharma, B., Singh, S., Maurya, R., Vishwakarma, D. K., Gaur, A., Rahman, M. Z., Dewidar, A. Z., & Mattar, M. A. (2026). Synergistic effects of Bradyrhizobium and PGPR bioinoculants on yield, nutritional quality, and rhizosphere functioning of mungbean. Plant and Soil. https://doi.org/10.1007/s11104-026-09178-z

Image Credits: AI Generated

DOI: 10.1007/s11104-026-09178-z

Keywords: mungbean, Bradyrhizobium, plant growth-promoting rhizobacteria, bioinoculants, grain yield, grain protein, soil microbial biomass, rhizosphere functioning, field experiment, Synergistic, effects, PGPR

PCN-224 was loaded with thymol by dispersing the framework in an ethanolic thymol solution, stirring the mixture overnight, and removing unbound thymol by centrifugation and washing. Spectroscopy supported successful incorporation, and the calculated loading efficiency was 5.88%. The resulting PCN@Thy nanoparticles were spherical, with most hydrodynamic sizes between 142 and 220 nanometres, compared with 122 to 190 nanometres for unloaded PCN-224. Their polydispersity index was 0.245, and X-ray diffraction retained the characteristic pattern of the PCN-224 framework, indicating that loading preserved its crystalline structure. Elemental mapping showed broadly overlapping distributions of zirconium, carbon, nitrogen and oxygen. Under visible illumination, fluorescence probes detected increased reactive oxygen species and a strong singlet-oxygen response, establishing that the composite combined a molecular cargo with a light-activated photosensitizer.

Against suspensions of Staphylococcus aureus and Pseudomonas aeruginosa containing 10^5 colony-forming units per millilitre, illuminated PCN@Thy produced substantially lower survival than either free thymol or PCN-224 alone. At the highest tested concentration of 120 micrograms per millilitre, survival was 9.17% for S. aureus and 9.88% for P. aeruginosa. By comparison, the corresponding survival rates with free thymol were 46.32% and 53.03%, while PCN-224 alone yielded 20.45% and 13.60%. The composite also had a concentration-dependent effect on biofilms: at 120 micrograms per millilitre, residual S. aureus biofilm biomass fell to 60% of the control value, while optical-density measurements of remaining P. aeruginosa biofilm decreased from 3.1 to 2.1. Imaging showed less extracellular matrix and more red fluorescence from dead bacteria as treatment intensity increased, consistent with disruption of the biofilm structure and inactivation of its inhabitants.

PCN@Thy was incorporated into a cast chitosan/polyvinyl alcohol matrix at loadings of 0.3, 0.6, 0.9 and 1.2% by mass. Loadings above 1.2% were excluded because severe aggregation and sedimentation prevented homogeneous film formation. Scanning electron microscopy showed smooth, continuous chitosan/polyvinyl alcohol films, whereas higher PCN@Thy contents produced rougher surfaces and visible particle aggregates without creating large cracks or voids. The composite became progressively redder and less transparent as the concentration of the purplish-red PCN-224 increased. At 1.2%, light transmittance at 660 nanometres fell from 97.46% in the unfilled film to 65.46%. At the same loading, transmittance at 280 nanometres dropped from 85.19% to 18.00%; the authors calculated corresponding UV-A and UV-B blocking efficiencies of 99.89% and 86.94%.

The nanoparticles also altered moisture transport, mechanical behaviour and oxidation resistance. In the 1.2% composite, moisture content was 23.42%, compared with 33.22% for the unfilled film, while water solubility fell from 39.24% to 21.05%. Water-vapour permeability decreased from 23.55 to 18.94 × 10^-11 g m^-1 s^-1 Pa^-1, and oxygen permeability declined from 23.76 to 20.04 g m^-2 h^-1. Adding the nanoparticles reduced tensile strength but increased elongation at break, behaviour attributed to particle aggregation, disruption of the original hydrogen-bond network and greater polymer-chain mobility. The 1.2% film scavenged 72.54% of DPPH radicals and 47.92% of ABTS radicals, a marked improvement over the limited activity of the unfilled matrix. Thymol release was slow during the first 200 hours, increased more rapidly at 25 °C than at 4 °C after that point, and continued through 350 hours.

When tested against aquatic spoilage and pathogenic organisms, illuminated CS/PVA/PT produced larger inhibition zones than the chitosan/polyvinyl alcohol film alone. Against P. aeruginosa, the inhibition-zone diameter increased from 0.5 millimetres for the unfilled film to 1.12 millimetres at a 0.3% loading and 1.36 millimetres at 1.2%. Electron microscopy of bacteria treated with the composite film under visible light showed shrinkage, collapse and rupture. Supporting measurements indicated elevated intracellular reactive oxygen species, increased protein leakage and reduced membrane potential, consistent with oxidative damage and membrane depolarization. The film also inhibited Botrytis cinerea, a strawberry-decaying fungus. After three days, fungal colony diameter was 6.42 centimetres in the control, compared with 1.33 centimetres for the unfilled film and 1.11 centimetres for the 1.2% composite, corresponding to reported inhibition rates of 79.24% and 82.70%.

Safety testing gave low hemolysis rates of 0.59% for the unfilled film and 1.74% for the 1.2% composite, both below the 5% threshold used in the study, while cell viability remained above 98% after exposure to film extracts. When buried in soil, the unfilled film lost between 62.67% and 77.49% of its mass, and the composite films lost between 55.76% and 77.93%, with no statistically significant difference among the reported degradation ranges. Zirconium migration from the 1.2% film into fish was measured by inductively coupled plasma mass spectrometry. Concentrations rose from 0.006 to 0.042 milligrams per kilogram between days 0 and 9, giving a calculated migration of 0.036 milligrams per kilogram, below a 2024 European Directorate for the Quality of Medicines reference release limit of 2 milligrams per kilogram for food-contact materials.

For the food trials, fish fillets weighing 10.5 ± 1.1 grams were stored at 4 ± 1 °C in three conditions: unpackaged, wrapped in unfilled chitosan/polyvinyl alcohol, or wrapped in the 1.2% composite after 10 minutes of visible-light irradiation. The composite was selected because it combined the strongest antibacterial, antioxidant and barrier properties among the tested formulations. By day 6, total viable counts reached 7.08 log colony-forming units per gram in unpackaged fish and 6.80 in fish wrapped with the unfilled film, both above the cited acceptability threshold of 6.0 log CFU per gram. Composite-wrapped fish remained below that threshold at 5.92 log CFU per gram on day 6 and exceeded it only on day 9. Total volatile basic nitrogen reached 26.60 milligrams per 100 grams in unfilled-film fish after nine days but only 19.13 milligrams per 100 grams in composite-wrapped fish. Fish hardness declined by 54% without packaging, 37% with the unfilled film and 20% with the composite, while zirconium migration remained low.

Strawberries averaging 21.5 ± 2.0 grams were stored for 10 days at room temperature in sealed cups covered with the films, with an unsealed control. The composite was illuminated for 10 minutes before storage, while the fruit remained out of direct contact with the packaging. Unpackaged strawberries developed mold by day 4 and severe rot by day 6. Those covered with the unfilled film developed small mold spots by day 8, whereas composite-covered berries showed only slight wrinkling and no visible mold through day 10. The composite group also had the lowest color change, weight loss, softening and pulp-pH variation. Taken together, the food trials show that a light-triggered, thymol-releasing film can combine physical barrier effects with chemical and photodynamic antimicrobial activity. The results support further development of porphyrin-framework packaging, but commercial use will require improved performance under low-light conditions, longer-term nanotoxicity studies and validation across a broader range of foods and storage conditions.

Subject of Research: Light-activated thymol-loaded metal-organic framework films for antimicrobial food packaging

Article Title: Synergistic Encapsulation of Thymol in Porphyrin-Based Porous Frameworks Enhances the Multifunctionality of Chitosan/Polyvinyl Alcohol Films for Food Preservation

Article References: Wang, H., Zhou, M., Xu, Y., Huang, Y., Ke, L., Xu, W., Yi, Y., & Zhou, M. (2026). Synergistic Encapsulation of Thymol in Porphyrin-Based Porous Frameworks Enhances the Multifunctionality of Chitosan/Polyvinyl Alcohol Films for Food Preservation. Current Research in Food Science, Article 101605. https://doi.org/10.1016/j.crfs.2026.101605

Image Credits: AI Generated

DOI: 10.1016/j.crfs.2026.101605

Keywords: active food packaging, thymol, chitosan, polyvinyl alcohol, PCN-224, metal-organic frameworks, photodynamic inactivation, food preservation, antimicrobial films, biodegradable packaging, Synergistic, Encapsulation

The experiments, published in Geoscientific Model Development on 21 October 2026, used the Common Land Model, or CoLM, to examine how soil-moisture retrievals from three satellites affect simulated land conditions. The study assimilated retrievals from NASA’s Soil Moisture Active Passive mission, or SMAP; the European Advanced Scatterometer, or ASCAT; and the Microwave Radiation Imager aboard China’s FY-3D satellite, or MWRI. The three instruments observe at different microwave frequencies and therefore sample the land surface in different ways. SMAP uses L-band radiation at 1.41 GHz, ASCAT is a C-band scatterometer operating at 5.255 GHz, and MWRI retrieves soil moisture primarily from X-band brightness temperatures at 10.65 GHz.

All three products provide broad coverage, but their sensitivity to vegetation differs. L-band wavelengths penetrate vegetation more effectively than shorter wavelengths, making SMAP comparatively useful in densely vegetated areas, although retrieval quality still deteriorates when canopy water content is high. C-band observations are more strongly affected by vegetation, but ASCAT benefits from its change-detection algorithm and multi-angle viewing geometry. X-band radiation is especially sensitive to vegetation scattering and attenuation. MWRI can therefore be unreliable beneath moderate or dense canopies, yet it can provide complementary information over bare soil and sparsely vegetated land. The central question was whether these differences could be used to build a genuinely synergistic assimilation system rather than simply adding more observations.

To do so, the researchers used a Simplified Extended Kalman Filter, or SEKF, to update CoLM’s soil-moisture state with daily satellite retrievals. The method approximates the observation operator through finite-difference perturbations rather than requiring an adjoint model, making it computationally practical for nonlinear land-surface processes. Model background and observation errors were estimated using ERA5-Land where stations were absent and triple collocation in station-covered regions. The researchers also applied cumulative-distribution-function bias correction, quality controls based on each product’s native flags, and a three-standard-deviation innovation check. Satellite values within each approximately 1.4-degree model grid cell were averaged, and observations were mapped to CoLM’s second soil layer, from 1.75 to 4.51 cm, because that layer best represented the effective sensing depth of the microwave products.

The main summer experiment covered June through August 2022. CoLM was first spun up for 342 years in open-loop mode, after which a control simulation and several assimilation configurations were run from identical initial conditions. Single-product experiments ingested SMAP, ASCAT, or MWRI alone; pairwise experiments combined L-band with C-band, L-band with X-band, or C-band with X-band; and a further experiment assimilated all three concurrently. A final “NEW” configuration used a targeted rule: SMAP and ASCAT were assimilated in densely vegetated regions, while all three products were retained in sparsely vegetated areas, including bare soil and several grass and crop classes. The strategy was therefore designed to screen observations according to their expected retrieval quality rather than treating every observation as equally useful.

Evaluations against ERA5-Land showed that each single-band product improved soil-moisture estimates over the upper metre, although the magnitude depended on frequency and depth. C-band assimilation produced the largest gains, increasing correlation by 0.15, 0.12, and 0.09 in the 0–7, 7–28, and 30–100 cm layers while reducing RMSE by 0.020, 0.015, and 0.012 cubic metres per cubic metre. L-band generally ranked second, whereas X-band performed best in sparsely vegetated regions but could have a negative effect beneath dense vegetation. The benefits also decayed at different rates during the month-long free forecast: L-band improvements faded more quickly, apparently because frequent precipitation in the humid, densely vegetated regions where it performed best rapidly overwrote the assimilated signal. C- and X-band effects were more persistent in areas with less rainfall and slower soil-moisture change.

Ground-based results from 3,057 retained stations—2,792 from the China Meteorological Administration and 265 from the International Soil Moisture Network—supported the same vegetation-dependent pattern. L- and C-band assimilation generally improved both correlation and RMSE across the available vegetation classes, while X-band MWRI retrievals performed poorly under dense canopies. Dual-sensor assimilation usually outperformed single-sensor assimilation, and the combination of SMAP and ASCAT was the strongest of the tested pairs. At a temperate needleleaf-forest station, for example, the three-product experiment had a time-series correlation of 0.53, below the 0.63 obtained by SMAP and ASCAT alone, because unusually wet MWRI retrievals pulled the analysis away from the station observation. In a corn field, however, adding MWRI raised correlation with station data from 0.79 to 0.83, helping the model reproduce a rainfall-driven wetting and drying sequence. At non-Arctic grassland, the corresponding correlation rose from 0.23 to 0.43 when X-band data were included alongside the other two products.

The targeted NEW experiment produced a mean correlation improvement of 0.17 over the control when evaluated with station observations. Its distribution of improvements was more consistently positive than that of indiscriminate three-product assimilation, with less probability of degradation. The benefit was especially clear in central and western China, where low-stature vegetation and bare ground dominate. Including X-band data in these sparsely vegetated regions increased correlation by 0.014, because the shorter wavelengths experienced relatively little canopy attenuation and could supplement L- and C-band observations. Under dense vegetation, where the new scheme excluded MWRI, the targeted approach improved correlation by 0.1 relative to the all-product experiment and reduced unbiased RMSE by approximately 0.001 cubic metres per cubic metre across most of the region. In southeastern China, where dense canopies dominate, correlation rose from 0.52 in the control to 0.58 with the targeted strategy, while unbiased RMSE declined from 0.055 to 0.052 cubic metres per cubic metre.

Seasonal tests exposed a limitation of using broad vegetation classes as a permanent selection rule. X-band observations were more likely to help in summer and winter, when grass and crop cover was relatively stable, but could reduce performance during spring and autumn, when rapid vegetation growth or senescence changed canopy structure faster than the seasonal classification could capture. Even with the targeted selection rule, the NEW experiment achieved higher mean seasonal correlations than both SMAP-plus-ASCAT assimilation and unfiltered three-product assimilation in every season examined. The authors caution that terrain, rainfall, and temperature can also alter retrieval errors and should be represented more fully in future systems. The study used offline land-surface simulations without coupled land–atmosphere interactions, and its deeper soil layers adjusted more slowly because no independent assimilation spin-up was available. The results are therefore preliminary evidence for vegetation-aware data selection, not a demonstrated improvement in operational weather or climate forecasts.

Subject of Research: Vegetation-aware assimilation of multi-band satellite soil-moisture retrievals for improved land-surface modeling

Article Title: A preliminary study on a synergistic assimilation scheme for multi-band satellite soil moisture data

Article References: Bai, X., Lin, Z., Qin, Z., & Li, J. (2026). A preliminary study on a synergistic assimilation scheme for multi-band satellite soil moisture data. Geoscientific Model Development, 19(20), 10051-10076. https://doi.org/10.5194/gmd-19-10051-2026

Image Credits: AI Generated

DOI: 10.5194/gmd-19-10051-2026

Keywords: soil moisture, data assimilation, satellite remote sensing, vegetation effects, land-surface modeling, SMAP, ASCAT, MWRI, Kalman filtering, China, preliminary, synergistic

The result was specific rather than universal. Silybin combined with voriconazole was synergistic against five of the 10 isolates, while the combination with itraconazole was synergistic against three. No synergy was detected with fluconazole, and one isolate showed antagonism with silybin plus itraconazole. Compared with the silybin-fluconazole reference, the difference in synergy rate was statistically significant only for the posaconazole combination after Holm adjustment. The exact 95% confidence interval for the 70% posaconazole-silybin synergy rate was 34.8% to 93.3%, emphasizing the preliminary scale of the evidence.

Mechanistic experiments focused primarily on the seven isolates that responded synergistically to posaconazole plus silybin. The combination lowered cellular ergosterol more than posaconazole alone in all seven, with significant differences ranging from p = 0.0291 to p less than 0.0001. An eighth isolate classified as showing no interaction did not exhibit a significant change. Ergosterol is a major fungal membrane sterol, and the azole target CYP51 participates in its synthesis. The findings are consistent with interference in membrane sterol production, but the researchers did not establish that silybin directly inhibits CYP51 or that this mechanism causes the observed synergy.

Reactive oxygen species measurements provided another correlate of antifungal action. In six of eight tested isolates, posaconazole plus silybin produced higher fluorescence than posaconazole alone, indicating greater intracellular reactive oxygen species accumulation; the differences were significant at p = 0.0217. Two isolates did not show significant increases. The authors were careful to distinguish association from mechanism: because the experiments did not test whether neutralizing reactive oxygen species reversed the combination effect, the elevated signal cannot yet be described as the definitive mediator of fungal killing or reduced biofilm survival.

Biofilm assays produced convergent results across developmental stages. In the crystal-violet assay, posaconazole alone inhibited biofilm formation by 13.7% to 61.5%, depending on the isolate. Adding silybin raised inhibition to 24.2% to 79.7%. The combination was significantly more effective than posaconazole alone in six of eight strains, improving inhibition by 16.5 to 46.5 percentage points, although no significant difference was detected in strains 382 and 390. An XTT assay, which measures fungal metabolic activity, likewise found stronger suppression by the combination in five of eight isolates, all with p less than 0.0001; three strains showed no significant difference between treatments.

The combination also affected established microbial communities. In SYTO9 and propidium iodide staining assessed by confocal laser scanning microscopy, posaconazole alone had limited activity against preformed mature biofilms. Posaconazole plus silybin decreased green fluorescence from viable cells and increased red fluorescence associated with membrane-compromised or dead cells. These observations indicate lower biofilm-cell viability after combination treatment. Together with the formation and metabolic assays, the results show activity against both developing and mature biofilms, but the microscopy was performed in laboratory culture rather than in an infected host or medical device.

Real-time quantitative PCR suggested that the combination altered several pathways relevant to adhesion, biofilm regulation, cell-wall integrity, and sterol synthesis. Compared with posaconazole monotherapy, the combination significantly reduced expression of bcr1, mkc1, erg2, and als5 in all seven synergistic isolates. Expression of efg1 fell in six, erg11 in six, and scf1 in five. The non-synergistic isolate showed significant reductions only in mkc1 and als5. These measurements were made in planktonic cells, so they may not represent gene activity within a biofilm. The authors also noted that altered messenger RNA levels do not by themselves prove loss of adhesion, biofilm formation, or other biological functions.

Silybin is a flavonolignan obtained from milk thistle and is used as a medicinal agent and dietary supplement. Posaconazole is an established antifungal, and each has an individual safety profile. That does not establish the safety or effectiveness of their combination. No direct cytotoxicity testing was performed in mammalian cells, no animal efficacy or safety study was conducted, and no clinical outcomes were evaluated. The experimental concentration is also a major translational obstacle: the lowest silybin concentration producing synergy was 4 micrograms per milliliter, compared with an effective in-vivo concentration of approximately 0.0965 micrograms per milliliter and typical oral exposure constrained by silybin’s reported absolute bioavailability of about 0.45%.

Taken together, the study provides proof-of-concept evidence for a combination that was most consistently synergistic with posaconazole in a small collection of multidrug-resistant C. auris isolates. Its effects included reduced ergosterol, increased reactive oxygen species, stronger inhibition of biofilm formation and metabolism, reduced viability in mature biofilms, and lower expression of selected biofilm- and sterol-associated genes. The findings support further investigation rather than immediate clinical use. Larger and more diverse strain panels, direct mechanistic tests, mammalian-cell toxicity studies, animal pharmacodynamic experiments, and improved silybin formulations would be needed to determine whether the laboratory synergy can be reproduced in vivo and translated into a treatment that balances efficacy, exposure, and safety.

Subject of Research: In-vitro synergistic antifungal and antibiofilm effects of silybin combined with posaconazole against Candida auris.

Article Title: In vitro synergistic antifungal activity of silybin-posaconazole combination against Candida auris

Article References: Peng, M., Zhu, X., Hu, Q., Fan, Y., Mao, Y., Chen, X., Qin, H., Zhang, H., & Sun, Y. (2026). In vitro synergistic antifungal activity of silybin-posaconazole combination against Candida auris. Frontiers in Microbiology, 17, Article 1881511. https://doi.org/10.3389/fmicb.2026.1881511

Image Credits: AI Generated

DOI: 10.3389/fmicb.2026.1881511

Keywords: Candida auris, silybin, posaconazole, antifungal synergy, drug resistance, biofilms, ergosterol, oxidative stress, azole resistance, in-vitro research, vitro, synergistic

The researchers produced the dual-carbon cathode through a high-temperature solid-state synthesis route. PEG6000, a polyethylene glycol grade, acted as a carbothermal reducing agent. During the reaction, it reduced vanadium from its V5+ state to V3+ in situ and generated an amorphous carbon coating around the cathode particles. Multi-walled carbon nanotubes were added to promote connections between neighboring particles. Together, the coated particles and nanotubes formed what the authors call a “point-line-plane” conductive motif: coated particles represent the points, nanotubes form connecting lines, and their arrangement creates a proposed three-dimensional conductive framework. In this design, the PEG-derived coating and nanotubes are intended to perform complementary roles within the composite.

Structural and morphological analyses supported preservation of the monoclinic Li3V2(PO4)3 phase and supplied local evidence for both carbon coating and contacts between particles and nanotubes. The characterization therefore agreed with the main features of the proposed network, although the supplied study summary does not establish that this network alone accounts for every measured improvement. The result is instead an experimental association among the investigated formulations: the sample with the reported optimized nanotube content exhibited stronger overall electrochemical performance than the carbon-only comparison material. The work concerns electrode materials synthesized and tested in the laboratory, rather than a demonstrated change in a complete commercial battery.

Kinetic analysis offered additional evidence of differences between the composite cathodes. A Dunn-method fit assigned 73%–86% of the current to the capacitive term, represented as k1v, at scan rates from 0.1 to 0.5 mV s−1 for Li3V2(PO4)3/C-0.002M. The optimized sample also displayed lower apparent charge-transfer resistance and slightly higher apparent galvanostatic intermittent-time technique diffusion coefficients than Li3V2(PO4)3/C. These are fitted or apparent measures obtained for laboratory electrodes, and the supplied evidence does not provide uncertainty intervals for them. Together with the cycling results, they indicate that the nanotube-containing composite had improved measured kinetic characteristics while maintaining a high fraction of its initial reversible capacity over the reported 200-cycle test.

More broadly, the study presents PEG6000/MWCNTs-assisted solid-state synthesis as a practical strategy for constructing dual-carbon conductive networks in polyanion cathode materials. Its strongest demonstrated result is the performance of Li3V2(PO4)3/C-0.002M: 127.2 mAh g−1 after 200 cycles at 1 C, with 95.47% capacity retention relative to an initial reversible capacity of 133.24 mAh g−1. The authors further propose that the approach could inform the design of high-performance polyanion cathodes. That proposal remains a materials-design implication rather than evidence of application-level readiness, because the supplied article summary does not report full-cell testing, commercial-scale manufacturing, or performance under practical electrode-loading conditions. The findings are best understood as a promising laboratory demonstration of how PEG-derived carbon and carbon nanotubes can jointly support a lithium vanadium phosphate cathode.

Subject of Research: Laboratory evaluation of a dual-carbon conductive network for lithium vanadium phosphate cathodes

Article Title: Synergistic conductive network constructed by polyethylene glycol and multi-walled carbon nanotubes for enhanced electrochemical performance of Li3V2(PO4)3 cathodes

Article References: Xu, H., Long, L., Feng, Y., Zhang, X., Huang, Y., Li, S., Tian, H., Li, B., Hou, J., Wang, X., & Hou, C. (2026). Synergistic conductive network constructed by polyethylene glycol and multi-walled carbon nanotubes for enhanced electrochemical performance of Li3V2(PO4)3 cathodes. Journal of Materials Science. https://doi.org/10.1007/s10853-026-13960-w

Image Credits: AI Generated

DOI: 10.1007/s10853-026-13960-w

Keywords: lithium vanadium phosphate, PEG6000, multi-walled carbon nanotubes, cathode materials, solid-state synthesis, conductive networks, electrochemical performance, cycling stability, energy storage, materials chemistry, Synergistic, conductive

The catalysts were developed by co-precipitation. According to the abstract, this approach introduced bimetallic redox couples, identified as Mn4+/Mn3+/Mn2+ and Ni3+/Ni2+, while allowing the researchers to control the concentration of oxygen vacancies in the doped material. Density functional theory calculations indicated that nickel doping optimized the electronic structure of Mn2O3, facilitating interfacial charge transfer and PMS activation. These computational results support the proposed mechanism, but the abstract does not establish how closely the calculations reproduce the measured degradation process.

Quenching experiments, electron paramagnetic resonance spectroscopy and in situ Raman measurements were used to investigate the reaction mechanism. The study identified superoxide radicals (O2•−) and singlet oxygen (1O2) as the main reactive oxygen species involved in BPA degradation. Liquid chromatography–mass spectrometry was used to examine the degradation pathway. The abstract further reports that toxicity software, ECOSAR, indicated the safety of the 20-NMO/PMS system. However, the available evidence does not establish that the pathway was complete, that all resulting products were harmless, or that the system was compared directly with BPA toxicity.

The reported results apply to controlled BPA degradation experiments using the tested catalyst and PMS system; they do not demonstrate treatment performance in real wastewater, other environmental matrices, or with contaminants other than BPA. The abstract also does not provide evidence on long-term catalyst stability or scale-up. Because only the abstract was available for this report, detailed experimental conditions and the full supporting data could not be assessed. Overall, the study links nickel-associated bimetallic redox cycling and oxygen-vacancy engineering with enhanced PMS activation in a laboratory Mn2O3-based catalyst.

Subject of Research: Laboratory evaluation of nickel-doped Mn2O3 for peroxymonosulfate activation and bisphenol A degradation

Article Title: Synergistic Mn-Ni dual-metal redox cycles and oxygen vacancies engineering in doped Mn2O3 for ultrafast PMS activation toward BPA degradation

Article References: Yu, X., Wu, R., Zhang, H., Feng, J., Bai, C., Ren, Y., & Zhao, L. (2026). Synergistic Mn-Ni dual-metal redox cycles and oxygen vacancies engineering in doped Mn2O3 for ultrafast PMS activation toward BPA degradation. Journal of Materials Science, 61(42), 33129-33148. https://doi.org/10.1007/s10853-026-13584-0

Image Credits: AI Generated

DOI: 10.1007/s10853-026-13584-0

Keywords: nickel-doped Mn2O3, peroxymonosulfate activation, bisphenol A degradation, oxygen vacancies, reactive oxygen species, water treatment catalysts, electron transfer, density functional theory, spectroscopy, ECOSAR, Synergistic, Mn-Ni

The study examined how polystyrene microplastics and trace elements jointly affected wheat physiology, with particular attention to physiological growth, seed germination and secondary-metabolite production in leaves. To identify low-dose trace-element concentrations that maximize secondary-metabolite production, the researchers used response surface methodology. This was a model-based optimization within the conditions tested; the abstract does not establish that an identified concentration would produce the same response in other environmental or experimental settings.

Metabolomic analysis revealed substantial alterations in amino-acid, fatty-acid and energy metabolism. Transcriptomic analysis identified specific genes associated with secondary-metabolite production and plant-defense mechanisms. The available abstract does not specify the full treatment structure, statistical methods, individual gene results or whether every measured metabolite and transcript showed a statistically significant response.

The findings are limited to the reported wheat experiment and do not demonstrate equivalent effects in field conditions, changes in crop yield, or long-term consequences for plant health and development. The authors characterize the work as a foundation for future research on long-term effects of interactions between microplastics and trace elements in plants. The supplied evidence does not establish broader agricultural consequences or clinical relevance.

Subject of Research: Experimental effects of polystyrene microplastics and trace elements on wheat germination, metabolism and associated genes

Article Title: Synergistic effects of polystyrene microplastics and trace elements on wheat (Triticum aestivum L.) physiology: implications for seed germination, metabolites production, and transcriptomic insights

Article References: Kousar, M., Hashmi, Q. A., & Park, J. (2026). Synergistic effects of polystyrene microplastics and trace elements on wheat (Triticum aestivum L.) physiology: implications for seed germination, metabolites production, and transcriptomic insights. BMC Plant Biology. https://doi.org/10.1186/s12870-026-10147-y

Image Credits: AI Generated

DOI: 10.1186/s12870-026-10147-y

Keywords: wheat, seed germination, polystyrene microplastics, trace elements, molybdenum, secondary metabolites, metabolomics, transcriptomics, plant defense, response surface methodology, Synergistic, effects

According to the study abstract, the experimental films were examined by nanoindentation to assess hardness. Chromium was added in solid solution to strengthen the lattice, while yttrium was observed to enrich the examined grain boundaries. The researchers systematically varied the alloying-element contents with grain size kept constant, allowing them to investigate how grain-interior and grain-boundary chemistry jointly affected mechanical response.

Chromium additions produced solid-solution strengthening, but the abstract reports that this effect saturated at higher concentrations as grain-boundary-dominated deformation processes emerged. Indentation pileups containing slip steps and grain rotation provided evidence for those processes. Increasing yttrium concentration strengthened the grain boundaries by pinning dislocations and suppressing dislocation emission, grain-boundary sliding and grain rotation. The authors associated a weakened chromium contribution at higher yttrium concentrations with a reduced dislocation-bowing distance caused by dopant pinning.

The findings are based on the published abstract; the supplied source does not provide the full article, so the report cannot assess the complete methods, underlying measurements or uncertainties. Within the stated scope of nanocrystalline Ni-Cr-Y sputtered films, the results indicate that controlling both grain and grain-boundary chemistry can influence deformation mechanisms and increase hardness. The authors present this tuning approach as a possible strategy for strengthening nanocrystalline metals, but the reported evidence concerns hardness measured by nanoindentation rather than a broader range of structural or engineering performance tests.

Subject of Research: Effects of chromium and yttrium doping on hardness and deformation mechanisms in nanocrystalline Ni-Cr-Y films

Article Title: Synergistic doping of the grain interior and grain boundary alters deformation mechanisms and enables extreme strength in nanocrystalline Ni-Cr-Y alloys

Article References: Liu, Y., Trelewicz, J. R., & Rupert, T. J. (2026). Synergistic doping of the grain interior and grain boundary alters deformation mechanisms and enables extreme strength in nanocrystalline Ni-Cr-Y alloys. Journal of Materials Science, 61(43), 34103-34123. https://doi.org/10.1007/s10853-026-13753-1

Image Credits: AI Generated

DOI: 10.1007/s10853-026-13753-1

Keywords: nanocrystalline alloys, nickel-chromium-yttrium, grain boundaries, solid-solution strengthening, nanoindentation, hardness, yttrium segregation, chromium doping, deformation mechanisms, materials science, Synergistic, doping

Investigators used an NK3.3/HT-29 co-culture system to assess cytotoxicity. According to the abstract, IL-2–activated NK cells alone did not produce robust killing of HT-29 cells, whereas treatment with sLTA restored NK-mediated tumor-cell killing. The researchers also examined NK-cell receptor expression, tumor-cell apoptosis-related genes, and the contribution of soluble NK-derived cytokines to the observed effect.

At the NK-cell side of the model, sLTA increased expression of activating receptors, including NKG2D and natural cytotoxicity receptors. In HT-29 cells, it increased MICB expression and reduced expression of the anti-apoptotic genes Bcl-2 and others. siRNA-mediated knockdown and Western blot analysis supported involvement of caspase-3–dependent apoptosis. Transwell and neutralization experiments indicated that sLTA-primed HT-29 cells became more sensitive to contact-independent cytotoxicity mediated by NK-derived TNF-α and IFN-γ.

The authors characterized sLTA as a dual-action immune sensitizer: it enhanced NK-cell effector activity while lowering the apoptotic threshold in resistant tumor cells. This conclusion is based on laboratory co-culture and related assays described in the abstract. The available summary does not report testing in animals or humans, does not establish safety, and does not show that sLTA would improve NK-cell-based immunotherapy in clinical settings. Its potential use as an adjunct therefore remains a suggestion for further study rather than a demonstrated therapeutic outcome.

Subject of Research: In vitro effects of sLTA on natural killer cell cytotoxicity against HT-29 colon cancer cells

Article Title: Synergistic restoration of NK cell cytotoxicity against solid tumors via sLTA-mediated dual-action modulation

Article References: Choi, D., Kim, H., Kim, H., & Chung, D.-K. (2026). Synergistic restoration of NK cell cytotoxicity against solid tumors via sLTA-mediated dual-action modulation. Molecular Biology Reports, 53(1), Article 1583. https://doi.org/10.1007/s11033-026-12764-0

Image Credits: AI Generated

DOI: 10.1007/s11033-026-12764-0

Keywords: natural killer cells, lipoteichoic acid, HT-29 cells, colon cancer, cell culture, immunotherapy, tumor killing, apoptosis, NKG2D, MICB, Synergistic, restoration