Central to this innovation is the environmentally benign fabrication of cerium oxide nanoparticles via a green synthesis method utilizing quince (Cydonia oblonga) peel extract. This biological approach eliminates the use of toxic chemicals typically involved in nanoparticle formation, thereby enhancing biocompatibility and sustainability. The phytochemicals in the quince peel serve both as reducing and stabilizing agents, facilitating the formation of nanoceria particles with unique physicochemical properties tailored for biomedical applications.

Cidofovir, a nucleotide analog widely recognized for its potent anti-DNA viral activity, has been traditionally administered with limitations due to systemic toxicity and suboptimal delivery. By integrating cidofovir onto the surface of green-synthesized CeO2 nanoparticles, researchers have engineered a dual-functional therapeutic platform that not only enhances drug stability and targeting but also exploits the inherent biological activities of nanoceria. CeO2 NPs are known for their redox-mediated antioxidant properties, anti-inflammatory effects, and tumor targeting capabilities, making them ideal drug carriers with intrinsic therapeutic effects.

Extensive cytotoxicity evaluations revealed a marked enhancement in anticancer efficacy of CDV-CeO2 NPs against breast cancer cell lines. At the apex concentration tested, this novel formulation obliterated over 97% of malignant cells, a significant improvement over the 72% cytotoxicity exhibited by cidofovir alone and 50% by bare cerium oxide nanoparticles. Such synergistic potentiation of anticancer effects underscores the promise of this nanomedicine platform for reducing dosage requirements, minimizing side effects, and improving patient outcomes.

In-depth mechanistic studies delved into the interactions between the CDV-CeO2 nanoparticles and nucleic acids—DNA and RNA—crucial biomolecules implicated in tumorigenesis and viral replication. Spectroscopic and thermal analyses indicated that nanoparticles engage nucleic acids through dual binding modes: groove binding, which entails embedding within the natural helical grooves of nucleic acids, and intercalation, involving insertion between base pairs. These stable complexes exhibited thermodynamic responsiveness, validating the strength and specificity of nanoparticle-genome interactions necessary for therapeutic efficacy.

The significance of this work lies not only in its biomedical implications but also in its methodological novelty. Employing a green extraction process preserves biological functionality while mitigating environmental hazards—a vital consideration in scaling nanotechnology for clinical translation. The use of plant-derived bioresources, such as quince peel waste, exemplifies a circular bioeconomy approach that promotes sustainability in advanced material science.

Moreover, the CDV-CeO2 nanoparticle construct merges multimodal actions—antiviral, anticancer, antioxidant, and anti-inflammatory—within a single nanoscale entity. This multifunctionality could enable simultaneous targeting of viral pathogens and malignant cells, pertinent in conditions where viral oncogenesis, such as human papillomavirus-associated cancers, is a primary concern. The coalescence of these properties may pave the way for next-generation therapeutics that are both versatile and highly efficacious.

While promising, the translation of CDV-CeO2 NPs from benchtop experiments to clinical practice necessitates rigorous preclinical evaluations. Comprehensive animal studies to assess pharmacokinetics, biodistribution, and long-term toxicity remain imperative. Furthermore, clinical trials will be essential to ascertain therapeutic safety, dosing strategies, and comparative effectiveness against existing antiviral and anticancer regimens.

This study exemplifies the burgeoning interface between green chemistry and nanomedicine, harnessing natural bioresources to innovatively engineer drug delivery systems with enhanced biological activity. The integration of cidofovir and nanoceria not only elevates drug performance but also exemplifies a paradigm shift towards environmentally conscious drug development in oncology and virology.

In summary, the green-synthesized cidofovir-loaded cerium oxide nanoparticles offer a promising multifunctional nanoparticle platform with superior cytotoxic effects on cancer cells and potent nucleic acid binding capabilities. Their synthesized method underscores a sustainable approach that could seamlessly integrate into future therapeutic strategies against DNA virus infections and cancer. If future studies validate their clinical applicability, these nanoparticles may represent a seminal advance in nanotechnology-enabled medicine with far-reaching impacts.

Correspondence regarding this significant advancement can be directed to Prof. Nahid Shahabadi at nahidshahabadi@yahoo.com. The full study was published in Oncotarget, Volume 16, on November 6, 2025, under DOI: 10.18632/oncotarget.28774. This open-access article invites researchers and clinicians alike to explore the multifaceted opportunities presented by green nanomedicine for combating persistent oncogenic and viral health challenges.

Subject of Research:
Not applicable

Article Title:
Anti-DNA virus agent cidofovir – loaded green synthesized cerium oxide nanoparticles (Nanoceria): Nucleic acids (DNA and RNA) binding affinity and cytotoxicity effects

News Publication Date:
6-Nov-2025

Web References:
https://www.oncotarget.com/
http://dx.doi.org/10.18632/oncotarget.28774

Image Credits:
Copyright © 2025 Shahabadi et al. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0).

Keywords:
cancer, cerium oxide nanoparticles, CeO2 NPs, green synthesis, DNA interaction, RNA interaction, cytotoxicity

The green synthesis method employed in this study underscores the importance of using environmentally benign processes in the creation of composite materials. Traditional methods of synthesis often involve hazardous chemicals and energy-intensive processes that can have detrimental effects on both human health and the environment. By utilizing rice husk ash—a byproduct of rice processing—this study not only provides a sustainable approach to material synthesis but also opens the door for value addition to agricultural waste. The integration of silver oxide and magnesium oxide introduces enhanced functionalities, making this hybrid composite a competitive candidate for various applications.

In the structural assessment of the Ag2O/MgO/rice husk ash hybrid composite, the researchers employed advanced characterization techniques. The use of X-ray diffraction (XRD) revealed distinct crystalline phases, indicating successful synthesis and the formation of a stable microstructure. Besides, scanning electron microscopy (SEM) provided insights into the surface morphology of the composite, showcasing a rough and porous surface that enhances its potential in various applications. Such structural characteristics are crucial, as they influence not only the physical properties but also the performance of the composite in practical scenarios.

The dielectric properties of materials are paramount in the field of electronics and telecommunications. The hybrid composite’s dielectric response was meticulously evaluated in order to understand its behavior under varying frequencies and temperatures. The results indicated an impressive dielectric constant and low loss tangent, suggesting that this material could be effectively utilized in capacitor designs and energy storage systems. This finding is particularly timely as the demand for efficient energy storage solutions continues to escalate. A hybrid composite with strong dielectric properties may pave the way for greener technologies in energy management.

Perhaps one of the most intriguing aspects of this research is the antibacterial application of the Ag2O/MgO/rice husk ash composite. Silver oxide is renowned for its inherent antibacterial properties, making it a sought-after material in healthcare applications. The amalgamation of this oxide with magnesium oxide and rice husk ash not only enhances the material’s antibacterial efficacy but also makes it a viable candidate for biomedical applications, such as wound dressings. The findings of this research suggest that this hybrid composite could significantly reduce microbial growth, thus contributing to better health outcomes in clinical settings.

Environmental impacts associated with waste management are ongoing global challenges. By converting rice husk, an agricultural waste, into a high-value material, Sasikumar et al.’s research epitomizes the principles of a circular economy. This transformation provides an environmentally safe method of disposal for rice husks, which typically accumulate and pose disposal issues. In this regard, the study also offers insights into how other agricultural wastes could similarly be harnessed to create value-added products. This not only supports sustainability but also aligns with global efforts to minimize waste and maximize resource utilization.

The multifaceted applications of the Ag2O/MgO/rice husk ash composite extend beyond antibacterial properties. Its characteristics make it a strong contender for use in the construction industry, where composite materials that exhibit both strength and lightweight properties are highly coveted. The ability to incorporate such materials into building structures could potentially enhance durability and longevity while reducing dependence on conventional construction materials, which often have a significant carbon footprint.

Additionally, the implications of this study are far-reaching and can be envisaged in various industrial contexts. The hybrid composite could be leveraged in water purification technologies, where its porous structure may enhance the adsorption of pollutants, thus contributing to more efficient water treatment solutions. This versatility underscores the importance of interdisciplinary research, where chemistry, materials science, and environmental science converge to address pressing needs.

As industries transition towards greener alternatives, research such as Sasikumar et al.’s paves the way for innovative strategies that incorporate sustainable practices. The growing body of literature supporting green synthesis methods emphasizes the urgency of developing materials that not only perform well but are also environmentally friendly. As scientific advancements continue, the potential to discover new materials and applications will further support the evolution of sustainable engineering practices.

Looking ahead, the authors of this research highlight several avenues for future work, including scaling up synthesis methods and exploring the incorporation of additional biowaste materials into composite formulations. Such efforts will be crucial in further understanding the limitations and possibilities of bio-based composites. The burgeoning field of materials science is indeed ripe for exploration, with the promise of new discoveries yielding materials that provide both functional efficiency and ecological responsibility.

In conclusion, the research presented by Sasikumar et al. not only showcases the potential of the Ag2O/MgO/rice husk ash hybrid composite but also exemplifies the critical need for sustainable material development in today’s world. As society seeks solutions to mitigate environmental challenges, innovative approaches such as this could redefine the landscape of material science. Through continued investigation and application of green synthesis methods, researchers may significantly impact industries ranging from healthcare to construction, ultimately fostering a more sustainable and efficient future.

Subject of Research: Green synthesis of Ag2O/MgO/rice husk ash hybrid composite

Article Title: Green Synthesis and Characterization of Ag₂O/MgO/Rice Husk Ash Hybrid Composite: Structural, Dielectric and Antibacterial Applications.

Article References:

Sasikumar, P., Mohanaparameswari, S., Balachandramohan, M. et al. Green Synthesis and Characterization of Ag₂O/MgO/Rice Husk Ash Hybrid Composite: Structural, Dielectric and Antibacterial Applications. Waste Biomass Valor (2025). https://doi.org/10.1007/s12649-025-03328-7

Image Credits: AI Generated

DOI: 10.1007/s12649-025-03328-7

Keywords: Green synthesis, Hybrid composite, Ag2O, MgO, Rice husk ash, Antibacterial applications, Dielectric properties.

The synthesis process employed in producing these YSZ/polypyrrole nanocomposites emphasizes environmentally friendly methodologies. Traditional synthesis techniques often involve harsher chemicals and procedures that lead to hazardous waste. In stark contrast, green synthesis leverages natural resources, minimizing chemical inputs and environmental damage. This approach does not only yield highly conductive materials but also aligns with global goals towards sustainable development in material science.

A noteworthy aspect of these nanocomposites is their enhanced electrochemical properties. The unique architecture created by integrating YSZ with polypyrrole facilitates increased ionic and electronic conductivity. Consequently, this allows for faster charge transport, which is crucial in many electrochemical applications, such as fuel cells and batteries. These devices depend heavily on the ability of materials to conduct ions efficiently, making the newly developed nanocomposites a promising alternative to conventional materials.

Moreover, the butane gas sensing capabilities of the YSZ/polypyrrole nanocomposites reveal their potential for use in environmental monitoring and safety applications. Given the growing concerns regarding air quality and gas emissions, having efficient sensors is more crucial than ever. The remarkable sensing performance can be attributed to the high surface area provided by the nanocomposite structure. This enhanced surface interaction ensures that even trace amounts of butane can be detected with high sensitivity and selectivity, indicating a noteworthy advancement in sensor technology.

The research surrounding these nanocomposites also dives into the mechanisms that underpin their performance. The interaction between the YSZ and polypyrrole at the nanoscale allows for a complex interplay of charge carriers. When butane gas molecules come into contact with the sensor, they interact with the surface of the nanocomposite, leading to changes in conductivity that can be measured and interpreted. This response is pivotal for real-time monitoring applications, offering rapid feedback in real-world settings.

Analytically, the researchers conducted rigorous testing to ensure the reliability of these nanocomposites in practical applications. Different variables such as temperature, humidity, and exposure time were meticulously controlled in order to simulate real-life conditions that these sensors would face. The results were promising, indicating that the new sensors could withstand varied environmental stimuli without significant degradation in performance.

In addition to their technical merits, the economic implications of adopting such nanocomposites cannot be overlooked. The use of green synthesis methods not only reduces costs associated with raw materials but also diminishes the overall ecological footprint of producing advanced materials. As industries pivot towards more sustainable practices, the integration of these biocompatible materials can lead to lower production costs and increased competitiveness in the market.

Future directions in the research of YSZ/polypyrrole nanocomposites could lead to further enhancements in their properties. By altering the ratios of YSZ to polypyrrole or introducing additional nanomaterials, researchers can fine-tune the characteristics of the composites for even more specialized applications. Exploring these parameters could provide insights into optimizing performance in various environmental and industrial settings.

The implications extend beyond just the realm of electrochemical and gas sensing. The fundamental properties of these nanocomposites suggest they could also have applications in areas such as biomedical devices and energy storage systems. As the landscape of material science continues to evolve, the versatility of YSZ/polypyrrole nanocomposites highlights their potential in an array of future technologies.

With the ongoing development of smart technologies and the Internet of Things (IoT), the demand for reliable, efficient gas sensors is expected to surge. The YSZ/polypyrrole sensors paves the way for innovations in this space, potentially leading to seamless integration with existing smart systems for better monitoring and data analysis. This aligns with the current trend towards digitalization in industrial applications, where having insights gleaned from real-time data can transform operations and efficiency.

The collaborative nature of this research effort underscores the importance of interdisciplinary approaches in material science. Experts across fields such as chemistry, engineering, and environmental science contributed to the successful development of these nanocomposites. Emphasizing team collaboration not only nurtures innovation but also accelerates the transfer of knowledge between disciplines, ultimately enriching the field.

In conclusion, the development of green-synthesized YSZ/polypyrrole nanocomposites marks a promising advancement in the arena of material science. Their exceptional electrochemical properties and enhanced gas sensing capabilities will have a profound impact on various applications. This research not only reinforces the potential of green synthesis in producing advanced functional materials but also sets a precedent for future innovations that can tackle environmental challenges in a sustainable manner.

As the global emphasis on sustainability and efficiency continues to grow, further exploration into these nanocomposites could yield exciting developments that push the frontiers of technology. With ongoing research and collaboration, the YSZ/polypyrrole nanocomposites stand as a beacon of possibility in the pursuit of smarter, more effective materials.

Subject of Research: Development of Green-synthesized YSZ/polypyrrole Nanocomposites for Electrochemical and Gas Sensing Applications

Article Title: Green-synthesized YSZ/polypyrrole nanocomposites for enhanced electrochemical and butane gas sensing applications.

Article References:

S, P., D, K., G.S, N. et al. Green-synthesized YSZ/polypyrrole nanocomposites for enhanced electrochemical and butane gas sensing applications.
Ionics (2025). https://doi.org/10.1007/s11581-025-06684-5

Image Credits: AI Generated

DOI: https://doi.org/10.1007/s11581-025-06684-5

Keywords: Nanocomposites, Green Synthesis, YSZ, Polypyrrole, Electrochemical Applications, Gas Sensing, Sustainable Materials.

Turmeric, a spice long revered for its medicinal properties, has gained attention in nanotechnology for its potential as a bio-sourced reducing agent. The research focuses on utilizing Curcuma longa to produce silver-zinc oxide nanocomposites, a hybrid material known for its synergistic properties. By employing a green synthesis route, the researchers effectively minimized the environmental impact typically associated with chemical synthesis, creating an eco-friendly alternative that aligns with contemporary sustainability goals.

The team meticulously characterized the synthesized nanocomposites using a range of techniques, including X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The results reveal a well-defined crystalline structure and confirmation of the successful incorporation of silver and zinc oxide within the turmeric matrix. These techniques demonstrated not only the material’s morphology but also its stability and effectiveness in biomedical applications.

One of the study’s highlights is the significant antibacterial activity exhibited by the synthesized nanocomposites. Tests against a variety of multi-drug-resistant bacterial strains, including Escherichia coli and Staphylococcus aureus, showed remarkable inhibition zones, indicating the potential application of these nanocomposites in wound dressings and coatings for medical devices. Given the alarming rise of antibiotic resistance, these findings underline the critical need to explore alternative strategies for infection control.

In addition to their antimicrobial properties, the silver-zinc oxide nanocomposites also exhibited photocatalytic activity, demonstrating the ability to degrade common cationic dyes that pollute water sources. Under UV light irradiation, the nanocomposites broke down harmful dyes such as methylene blue and crystal violet rapidly and efficiently. This photocatalytic degradation not only addresses the ongoing environmental crisis of water contamination but also underscores the multifaceted capabilities of these advanced materials.

The free radicals generated during photocatalytic reactions play a crucial role in facilitating the degradation of organic pollutants. The study delves into the mechanisms underlying this process, shedding light on how the interaction between light and the nanocomposites induces electron-hole pair generation, which subsequently leads to the formation of reactive oxygen species. This scientific insight is fundamental for optimizing the conditions in which these materials can be applied, potentially paving the way for innovative wastewater treatment solutions.

Another critical aspect of the research is the exploration of the long-term stability of the synthesized nanocomposites. By conducting various stability studies, the researchers ensured that the materials retained their effectiveness over time. This feature is essential for real-world applications, particularly in medical and environmental fields, where prolonged efficacy can significantly influence treatment outcomes and remediation success.

As the research progresses, the team is also investigating the biocompatibility of these nanocomposites. Understanding how these materials interact with biological systems is paramount for safe applications in medical environments. Preliminary studies suggest positive outcomes, with non-toxic effects observed on human cell lines, paving the way for future clinical uses such as drug delivery systems or antimicrobial coatings.

The implications of this research extend beyond the laboratory. The utilization of renewable resources like turmeric not only promotes sustainability but also contributes to the local economies where these plants are cultivated. By valuing agricultural waste for high-tech applications, researchers can foster advancements in green chemistry that resonate with communities globally.

Moreover, the ability of these nanocomposites to address dual challenges—antimicrobial resistance and environmental pollution—bears significant relevance in today’s world. With health organizations sounding alarms over rising cases of drug-resistant infections, the need to innovate and deploy new treatment modalities is more pressing than ever. This study’s findings not only inspire further research into alternative therapeutics but also advocate for the integration of green technologies in our approach to healthcare and environmental sustainability.

The team envisions the potential for commercial applications of these silver-zinc oxide nanocomposites in various sectors. From household products to industrial use, the versatility opens up avenues for incorporating these materials into everyday items, enabling a societal shift towards healthier and more sustainable solutions.

In summary, the pioneering work carried out by Mohan and colleagues presents an exciting intersection of natural product chemistry, nanotechnology, and environmental science. Their findings not only highlight the potential of turmeric-derived nanocomposites but also emphasize the importance of sustainability in addressing contemporary challenges. As they propel this research forward, the broader scientific community remains optimistic about the pathways this work opens for future investigations and applications.

The implications of these findings are vast and can encourage cross-disciplinary collaborations that leverage the strengths of various fields. As researchers delve deeper into the properties and applications of these nanocomposites, the hope is to push boundaries further, potentially leading to revolutionary advancements in medicine, environmental science, and beyond. The marriage of natural materials with cutting-edge technology embodies the principles of green science, encouraging a more harmonious relationship between humanity and nature.

The study ultimately serves as a call to action for the scientific community to embrace sustainable practices in research. The results affirm that nature can provide raw materials for innovative solutions to modern-day problems, advocating for a future where science is not just driven by profit but also by responsibility to the environment and public health.

This groundbreaking study embodies the essence of scientific inquiry, where curiosity and sustainability converge to forge a better future. With extensive research and development ahead, the prospect of harnessing turmeric-derived nanocomposites offers a beacon of hope in addressing some of the most pressing issues facing humanity today.

Subject of Research: Silver-Zinc Oxide Nanocomposites from Curcuma longa for Antibiofilm and Photocatalytic Applications

Article Title: Valorisation of Curcuma longa-Derived Silver-Zinc Oxide Nanocomposites with Antibiofilm and Photocatalytic Activity Against Multi-Drug-Resistant Pathogens and Cationic Dyes

Article References:

Mohan, B., Abishad, P., Arya, P.R. et al. Valorisation of Curcuma longa-Derived Silver-Zinc Oxide Nanocomposites with Antibiofilm and Photocatalytic Activity Against Multi-Drug-Resistant Pathogens and Cationic Dyes.
Waste Biomass Valor (2025). https://doi.org/10.1007/s12649-025-03318-9

Image Credits: AI Generated

DOI:

Keywords: Silver-zinc oxide nanocomposites, Curcuma longa, Antimicrobial activity, Photocatalytic degradation, Multi-drug resistance, Sustainable materials, Environmental pollution, Green synthesis.