The study, conducted within the framework of the larger Swedish randomized controlled CGA Swed trial, set out to explore how frail older people managed everyday life in quarantine during the first year of the pandemic. Frailty, in the clinical sense, refers to a state of reduced bodily function, increased vulnerability, and diminished ability to handle stressors, often assessed through criteria such as general weakness, reduced endurance, weight loss, low physical activity, and slow walking speed. Because frailty markedly increases after the age of 80 and is associated with reduced quality of life, impaired cognition, and heightened risk of depression and pain, the researchers reasoned that this group would experience pandemic restrictions differently from healthier older adults. Yet, until now, in-depth knowledge about the consequences for frail older people specifically remained scarce, leaving a gap in both gerontology and occupational therapy research.

Twenty participants, aged 78 to 100 years and including 11 women and 9 men, were recruited through strategic sampling designed to capture heterogeneity in age, illness, functional ability, and dependence in activities of daily living. Almost all depended on home-help services, two lived in nursing homes, and seven rated their health as good while the rest described it as fair or poor. Because meeting in person posed an unacceptable infection risk, the researchers conducted semi-structured telephone interviews between October 2020 and February 2021, lasting from 11 to 33 minutes with a median of 23 minutes. Notably, recruitment and data collection never occurred digitally, an advantage the researchers highlight given that digital exclusion is itself a barrier for this population. The interviews were transcribed verbatim and analyzed using the qualitative content analysis method described by Graneheim and Lundman, in which meaning units are coded, grouped into categories, and distilled into themes, ultimately yielding one overarching theme and four subthemes.

That overarching theme, everyday life in double exposure, captures the central insight of the study: even before the pandemic, limitations already existed across multiple domains of these participants’ lives as consequences of ageing and illness. Dependence on elder care services could negatively affect control over daily routines, and most participants had already adapted their leisure activities to a reduced capacity. The loss of friends to old age had narrowed social interactions, and reliance on relatives for support had heightened dependence. The restrictions then compounded every one of these pre-existing limitations. Rather than confronting the pandemic from a baseline of healthy autonomy, these older people faced a crisis that amplified vulnerabilities they were already struggling to manage, and their diminished capacity to generate new coping strategies made the disruption especially destabilizing.

The first subtheme, powerlessness under the restrictions, describes the tension between adhering to public health guidance and struggling with its suffocating impact. Participants spoke of the pandemic period as a lost year, a time of living unnaturally under a new set of rules about how to exist. The constraints heightened their awareness of life’s finite nature and intensified the desire to engage in meaningful occupations, while simultaneously undermining their sense of autonomy and occupational identity. For those in care homes, limitations were particularly severe, with periods when residents could not move through common areas or meet relatives, and when fellow residents died from the virus. One participant described a common room where only three grieving residents remained after many others had died at the same time. Relatives’ opinions also shaped what activities participants felt permitted to pursue, an external control that reinforced feelings of limited agency and left some waiting for something to change without knowing how to influence their situation.

To manage this powerlessness, participants adopted a strategy the researchers termed acceptance and trust in the restrictions. Accepting the necessity and effectiveness of the measures became a way to cope with double exposure, allowing participants to focus on external factors such as vaccination prospects or changing seasons. Strict adherence, including avoiding all social contact, provided a sense of security for some, while others balanced precautions such as masks, sanitizers, and physical distance with continued essential activities. Healthcare was still sought when needed, and routine visits continued. Yet the study uncovered a novel and troubling finding: inconsistent adherence to safety measures among elder care staff, such as variable use of protective equipment, undermined participants’ sense of security and even led some to cancel support services they clearly needed, despite having extensive care needs that limited that option. Over time, pandemic behaviors like distancing and abstaining from handshakes became routine, but adherence occasionally relaxed, with some participants prioritizing physical contact with close relatives over fear of infection, weighing emotional needs against physical risk.

The third subtheme, limitations in everyday life beyond control, documents how the pandemic profoundly restricted activities and deepened boredom. The inability to meet relatives, socialize with friends, or leave the home for everyday societal activities such as shopping, using public transport, or simply sitting on a bench was experienced as particularly restrictive. Shifting social and religious activities to digital platforms was often impossible due to limited technological skills or resources, meaning that lost participation also meant lost routines, health benefits, and intellectual engagement. Dependence on family members introduced further constraints, as feelings of being a burden inhibited participants from expressing their own needs. Practical frictions multiplied; one participant described the difficulty of coordinating a hairdresser visit with home care schedules that had themselves become unpredictable because of pandemic staffing uncertainties. One participant, asked what she did when spontaneous meetings were no longer possible, responded through tears that she simply lay down in bed and fell asleep, calling the situation awful.

Against these losses, the final subtheme, striving for meaningfulness in everyday life, reveals remarkable resilience. Participants adapted leisure activities to fit within restrictions, meeting friends outdoors when weather permitted, maintaining phone contact, and turning to solitary hobbies such as reading, puzzles, radio, crosswords, and television. Some expanded their use of smartphones and tablets to access social media or games, while others relied on relatives for basic digital tasks, but for many, technology remained inaccessible due to lack of access or competence. Crucially, even participants with digital tools did not perceive online interaction as a true replacement for in-person contact, consistent with prior research on occupational disruption. In care settings, the social interaction provided by care staff grew increasingly important, and some participants supported peers facing greater challenges, demonstrating solidarity, such as one resident who gave fruit to and talked with two women who died the very same night.

The authors conclude that frail older people may have limited capability to adapt to new circumstances, make active decisions to influence their situation, and proactively manage their health, which underscores the central role of occupational therapy in mitigating the impact of disrupted everyday life. Occupational therapists, the study argues, are uniquely positioned to identify how frailty constrains activity performance and participation, to co-create modified routines, to enable safe engagement in daily activities, to strengthen social participation through both digital and non-digital means, and to work with families and care staff to stabilize expectations around daily roles. Addressing digital exclusion, ensuring stable and predictable care environments, and strengthening continuity in primary care through designated contact persons emerge as concrete priorities. Perhaps most significantly, the mechanisms identified here, including reduced activity opportunities, disrupted roles, and weakened belonging, operate not only during pandemics but also in ordinary circumstances where illness, mobility limitations, or restricted social networks chronically isolate frail older people. The study’s findings thus serve as both a record of a lost year and a blueprint for sustaining leisure, connection, and wellbeing in future disruptive events.

Subject of Research: Managing Everyday Life in Double Exposure: Frail Older People’s Experiences During a Pandemic

Article Title: Managing Everyday Life in Double Exposure: Frail Older People’s Experiences During a Pandemic

Article References: Sjöberg, K., Dahlin-Ivanoff, S., Wilhelmson, K., & Andersson Hammar, I. (2026). Managing Everyday Life in Double Exposure: Frail Older People’s Experiences During a Pandemic. Scandinavian Journal of Occupational Therapy, 33(1), Article 1. https://doi.org/10.1007/s44474-026-00001-7

Image Credits: AI Generated

DOI: 10.1007/s44474-026-00001-7

Keywords: Managing, Everyday, Life, Double, Exposure, Frail, Older, People, Experiences, During, Pandemic, scientific research

The dominance of China, with 85 publications, and Italy, with 25, reflects complementary strengths rather than simple redundancy. Chinese groups have historically driven much of the fundamental materials chemistry of layered hydroxides, including refinements in co-precipitation, hydrothermal, and reconstruction methods that control layer charge density, interlayer spacing, and particle size, all of which govern how much antibiotic can be hosted and how quickly it escapes. Italian contributions, by contrast, have been closely associated with the biomedical translation of anionic clays, particularly in antitumoral and anti-inflammatory delivery, and that translational orientation naturally extends to antimicrobial applications where controlled release can reduce dosing frequency and limit the emergence of resistance at infection sites. The concentration of output in journals such as Applied Clay Science, the International Journal of Nanomedicine, and the International Journal of Biological Macromolecules illustrates the interdisciplinary position of the field: it sits at the intersection of clay mineralogy, nanomedicine, and macromolecular therapeutics, and authors must choose venues according to whether the novelty lies in the material synthesis or in the biological outcome.

The keyword co-occurrence findings, in which LDH, sustained release, and drug delivery emerge as central nodes, confirm that the community defines itself around the release kinetics problem rather than around any single antibiotic class. This is consistent with the underlying chemistry. The general formula of these materials, in which divalent and trivalent metal cations form positively charged hydroxide sheets balanced by interlayer anions and water, allows antibiotics bearing carboxylate, phosphate, or other anionic groups to be intercalated electrostatically. Once intercalated, release is governed by a combination of anion exchange with physiological counter-ions, partial dissolution of the layers, and diffusion through the particle periphery. Because the layers dissolve more readily in acidic media, the resulting carriers exhibit pronounced pH sensitivity, a property that is valuable at infected sites and in intracellular compartments such as phagolysosomes, where pH falls below that of blood and can be used to trigger preferential drug liberation. This same alkaline degradation behavior in gastric media, noted in the source literature, is a double-edged characteristic: it complicates oral delivery of acid-labile payloads yet can be exploited for gastric-responsive formulations.

The comparative framing against other carrier families provides useful context for interpreting why LDHs attract sustained attention despite their younger bibliography. Polyvinyl alcohol hydrogels are appreciated for biocompatibility and water processing but suffer from mechanical weakness and excessive hydrophilicity that accelerate burst release. Metal-organic frameworks offer exceptional internal surface area and tunable pore chemistry, yet concerns over long-term structural stability in aqueous biological environments, biodegradation products, and scalable cost remain active research questions. Mesoporous silica materials are the most clinically mature of the three comparators, but their typical pore dimensions constrain the size of molecules that can be loaded efficiently, and pore architecture influences release in ways that are difficult to tune independently. LDHs occupy a distinctive niche among these alternatives because their loading capacity is not limited by rigid pore windows; instead, the interlayer gallery can expand to accommodate bulky anionic species, and the layer charge can be adjusted through the divalent to trivalent cation ratio, giving formulators a direct handle on loading density and exchange kinetics. Their documented high anion exchange capacity, colloidal stability, and low toxicity in the reviewed literature further support this positioning.

The bibliometric emphasis on citation trends and thematic evolution also illuminates how the field has responded to the clinical backdrop of antimicrobial resistance. The 2022 GLASS report cited in the source article documents high resistance rates among common bacterial pathogens, and the parallel slowdown in the discovery of genuinely new antibiotic scaffolds has shifted attention toward maximizing the performance of existing drugs. Sustained-release delivery is one of the few strategies that improves the pharmacodynamic profile of an established antibiotic without requiring new chemistry at the molecular level. By flattening the sharp plasma spikes and troughs characteristic of immediate-release formulations, steady delivery maintains concentrations within the therapeutic window for longer periods, reduces the frequency of subinhibitory exposure that selects for resistant subpopulations, and improves patient adherence through fewer doses. In this sense, the bibliometric growth of LDH antibiotic delivery research can be read as a materials-science response to a pharmacological and epidemiological problem.

The methodological apparatus of the review itself deserves comment, because bibliometric analysis is increasingly used to map emerging biomedical materials fields and its limitations should be understood when interpreting the results. Restricting the corpus to English-language publications indexed in SCI-Expanded and ESCI introduces a selection bias toward established journals and anglophone or internationally publishing groups, which may undercount contributions from regions with strong domestic journals. The exclusion terms applied to remove degradation and adsorption studies, while scientifically justified, may also have removed hybrid papers that examined both adsorption and release. Nevertheless, the use of two complementary tools, VOSviewer for network visualization and the Bibliometrix package in R for descriptive and thematic statistics, strengthens the reliability of the mapping, since agreement between independent platforms on core findings such as country productivity and keyword clusters reduces the likelihood of software-specific artifacts. The reporting of total link strength as a measure of interaction intensity between nodes follows standard practice in science-mapping studies and allows readers to gauge not just the presence of a collaboration or co-occurrence but its relative weight within the network.

The identification of prominent authors, highly cited works, and funding sources within the 217-document corpus serves a practical function for newcomers to the field. Highly cited papers typically cluster around foundational demonstrations of antibiotic intercalation and release profiling, and tracing the citation flow from these works toward more recent publications reveals a thematic migration: early studies emphasized proof of concept for loading and release, while later work increasingly incorporates biological evaluation, including minimum inhibitory concentration assays, biofilm models, and cytocompatibility testing. The three-field plot analysis, which links countries, institutions, and keywords, exposes where interdisciplinary gaps persist, and the review’s framing of these gaps as opportunities for collaboration is consistent with the observation that no single discipline currently owns the problem. Materials chemists can optimize synthesis and interlayer architecture, microbiologists can define clinically relevant resistance and biofilm challenges, pharmacologists can model release and dosing, and toxicologists can establish biocompatibility thresholds, yet the bibliometric evidence suggests these communities have not fully converged.

The connection drawn between LDH drug delivery research and the Sustainable Development Goals reflects a broader trend in which bibliometric studies situate technical fields within global health priorities. Antimicrobial resistance is explicitly recognized in international frameworks as a threat to sustainable development, and delivery technologies that extend the useful life of existing antibiotics contribute to that agenda without demanding new molecular discovery. The emphasis on relevance to Sustainable Development Goals in the keyword and funding analysis indicates that funding agencies and journals increasingly reward work framed in these terms, which may in turn shape the direction of future publications toward applications with clear health-system relevance, such as wound dressings, implant coatings, and oral formulations for persistent infections.

Looking forward, the bibliometric evidence points toward several strategic directions that follow logically from the identified themes. First, the prominence of sustained release as a keyword suggests that quantitative release modeling, rather than qualitative demonstration, will be the differentiating contribution in coming years, since regulatory translation requires reproducible kinetics under physiologically relevant conditions. Second, the presence of gene therapy, biosensing, and ocular applications in the broader LDH literature signals that antimicrobial researchers may borrow formulation strategies from these adjacent domains, for example exploiting the positive surface charge that prolongs corneal residence to design mucoadhesive antimicrobial films. Third, the geographic concentration of output in two countries implies substantial untapped collaborative capacity, particularly in regions with high antimicrobial resistance burden but lower publication visibility in the indexed corpus, and international partnerships could align material development with the clinical epidemiology of resistance. Finally, the absence of prior bibliometric treatment of this field, which the review establishes as its central novelty, means that the 2025 dataset will serve as a baseline against which future updates can measure whether the field grows in volume, diversifies in geography, or shifts thematically from synthesis-oriented to clinically validated studies, and such longitudinal comparison is precisely the kind of insight that systematic bibliometric monitoring is designed to provide.

Subject of Research: Layered double hydroxides in sustained antibiotic delivery: a bibliometric review

Article Title: Layered double hydroxides in sustained antibiotic delivery: a bibliometric review

Article References: Verma, S. S., Varadavenkatesan, T., Selvaraj, R., & Vinayagam, R. (2026). Layered double hydroxides in sustained antibiotic delivery: a bibliometric review. Journal of Saudi Chemical Society, 30(5), Article 65. https://doi.org/10.1007/s44442-026-00120-7

Image Credits: AI Generated

DOI: 10.1007/s44442-026-00120-7

Keywords: Layered, double, hydroxides, sustained, antibiotic, delivery, bibliometric, review, scientific research