RSC AdvancesPub Date : 2025-07-25DOI: 10.1039/D5RA03520A
Thi Viet Ha Luu, Thi Lieu Nguyen, Thi My Hien Bach, Nguyen Trung Dung, Nguyen Nhat Huy and Huu Phuc Dang
{"title":"Tuning ZnO photocatalysts via C and Ce Co-doping: a comparative approach using hydrothermal and microwave synthesis†","authors":"Thi Viet Ha Luu, Thi Lieu Nguyen, Thi My Hien Bach, Nguyen Trung Dung, Nguyen Nhat Huy and Huu Phuc Dang","doi":"10.1039/D5RA03520A","DOIUrl":"https://doi.org/10.1039/D5RA03520A","url":null,"abstract":"<p >In this study, C- and Ce-doped ZnO materials were synthesized by two methods: hydrothermal method (CCZ-HT) and microwave method (CCZ-MA), both using the same starting materials. The different heating stages of the methods produce distinct morphologies, doping concentrations, and some other characteristics. CCZ-HT consists of nanoellipsoids, while CCZ-MA consists of nanoflakes. The doping concentrations of cerium and carbon in CCZ-MA are higher than those in CCZ-HT. The types of crystal defects in the doped materials are different, leading to differences in their absorption and emission properties. The band gap energy of CCZ-MA is 2.85 eV, which is lower than that of CCZ-HT (2.92 eV). While CCZ-HT does not exhibit near-infrared emissions, CCZ-MA exhibits relatively strong emissions. CCZ-HT and CCZ-MA had a degradation capacity for ofloxacin (Ofx) under visible light that was 2.63 and 3.38 times superior to that of pure ZnO, respectively. The addition of Ce and C improved the band structure by slightly moving the conduction band and reducing the band gap, which allowed for better light absorption in the visible range and helped separate charge carriers. These enhancements immediately facilitated enhanced photocatalytic efficacy in the breakdown of ofloxacin. The CCZ-MA material exhibited superior photocatalytic activity due to its advantageous shape, increased surface area, and enhanced charge trapping capability associated with flaws. The functions of photo oxidized fragments and reaction intermediates were also examined. This study postulated a photodegradation mechanism for Ofx.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 32","pages":" 26552-26566"},"PeriodicalIF":3.9,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra03520a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144695680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tianyi Che, Qijia Gong, Jiawei Geng, Tian Fu, Sidan Wang, Yao Zhang, Jianfeng Yang, Xiaofeng Zhang, Lintao Dan, Jie Chen, Chunhua Zhou
{"title":"Association between meat consumption and incident acute pancreatitis: a prospective cohort study.","authors":"Tianyi Che, Qijia Gong, Jiawei Geng, Tian Fu, Sidan Wang, Yao Zhang, Jianfeng Yang, Xiaofeng Zhang, Lintao Dan, Jie Chen, Chunhua Zhou","doi":"10.1039/d5fo01084e","DOIUrl":"https://doi.org/10.1039/d5fo01084e","url":null,"abstract":"<p><p><i>Background</i>: Previous studies indicated the potential role of consumption of different types of meat in the etiology of acute pancreatitis (AP), but no clear link has been established. This study aimed to investigate the association between consumption of 4 types of meat (processed meat, unprocessed red meat, poultry, and fish) and the risk of incident AP. <i>Materials and methods</i>: We included 489 708 participants from the UK Biobank between 2006 and 2010. A food frequency questionnaire (FFQ) was used to document the frequency of four types of meat. Data from validated 24-hour dietary recalls were used to quantify the meat intake and reduce measurement errors. The outcomes of our study were incident AP among participants. Hazard ratios (HRs) with 95% confidence intervals (CIs) for the associations between meat consumption and incident AP were calculated using Cox proportional hazard models. <i>Results</i>: Over a mean (standard deviation) follow-up of 13.2 (2.1) years, 3079 incident AP cases were recorded. We observed that higher consumption of processed meat was associated with a higher risk of incident AP (per 25 g per d: HR: 1.29, 95% CI: 1.12-1.47). In contrast, higher consumption of fish intake was associated with a lower risk of AP (per 25 g per d: HR: 0.78, 95% CI: 0.68-0.89). Replacing one, two, and three servings per week of processed meat with fish per week was associated with a 6% (95% CI: 2%-9%), 11% (95% CI: 4%-17%), and 16% (95% CI: 6%-24%) reduced risk of incident AP. <i>Conclusion</i>: More frequent processed meat consumption was associated with an elevated risk of incident AP, while more frequent fish consumption was associated with a lower risk of incident AP. Our study found that a diet that substitutes fish for processed meat may mitigate the risk of incident AP.</p>","PeriodicalId":77,"journal":{"name":"Food & Function","volume":" ","pages":""},"PeriodicalIF":5.1,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hydrophilic sp<sup>2</sup>-carbon conjugated co-porphyrin covalent organic frameworks for efficient electrocatalytic oxygen reduction reaction.","authors":"Yan-Fang Yao, Yun-Rui Lv, Feng Li, Xin-Yi Huang, Si-Jing Huang, Xin-Yan Xiao, Hai-Yang Liu","doi":"10.1039/d5mh00858a","DOIUrl":"https://doi.org/10.1039/d5mh00858a","url":null,"abstract":"<p><p>Covalent organic frameworks (COFs) have demonstrated great potential in electrocatalytic oxygen reduction reaction (ORR). However, the continuous proton-coupled electron transfer (PCET) steps with water as the proton donor and the low electron conductivity of hydrophobic COFs increase the kinetic barriers for device applications. Herein, a hydrophilic custom-designed strong electron/proton extractor on CoT-sp<sup>2</sup>C-P-COF-COOH was developed by converting the cyano groups of CoT-sp<sup>2</sup>C-P-COF into carboxyl groups. The electrocatalyst constructed by the CoT-sp<sup>2</sup>C-P-COF-COOH shows impressive ORR activity (<i>E</i><sub>1/2</sub> = 0.823 V <i>vs.</i> RHE) and outperforms most COF-based catalysts. Additionally, the fabricated Zn-air battery with the CoT-sp<sup>2</sup>C-P-COF-COOH catalyst displays a high peak power density of 121.8 mW cm<sup>-2</sup> and excellent stability. Theoretical calculations suggest that CoT-sp<sup>2</sup>C-P-COF-COOH is also more efficient than CoT-sp<sup>2</sup>C-P-COF to bind with an O<sub>2</sub> molecule to form Co<sup>III</sup>-O<sub>2</sub>˙<sup>-</sup>, which optimizes the electron transfer efficiency and enhances the stabilization of intermediates, thereby synergistically accelerating the PCET step and ORR kinetics. This work highlights the continuous electron extraction and rapid proton transfer during electrocatalysis, and paves the way for advances in designing hydrophilic ORR electrocatalysts at the molecular level.</p>","PeriodicalId":87,"journal":{"name":"Materials Horizons","volume":" ","pages":""},"PeriodicalIF":12.2,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chaozhan Chen, Ruhuan Ye, Zidong Chen, Jiayi Ye, Bin Ran, Bo Liu, Jialin Liang, Jiale Huang, Teng Shen
{"title":"A microfluidic paper-based analytical device based on a surface-modified screen-printed electrode Pt-Pd/RGO nanocomposite for glucose detection in urine.","authors":"Chaozhan Chen, Ruhuan Ye, Zidong Chen, Jiayi Ye, Bin Ran, Bo Liu, Jialin Liang, Jiale Huang, Teng Shen","doi":"10.1039/d5ay00852b","DOIUrl":"https://doi.org/10.1039/d5ay00852b","url":null,"abstract":"<p><p>Urine biomarker detection with high accuracy and sensitivity is crucial for advancing point-of-care diagnostics. This paper developed a microfluidic paper-based analytical device (μPAD) for electrochemical glucose detection in urine. The proposed μPAD employs a filter paper substrate to enable pump-free sample transport to a detection zone integrated with the screen-printed electrode (SPE), allowing rapid quantification within 60 seconds. A composite of reduced graphene oxide (RGO)/platinum-palladium nanoparticles (Pt-Pd NPs) with good analytical performance has been electrodeposited on the surface of SPEs and subsequently combined with glucose oxidase (GO<sub><i>x</i></sub>) to create a glucose biosensor (GO<sub><i>x</i></sub>/Pt-Pd NPs/RGO/SPE). Under optimized conditions, the Pt-Pd NPs/RGO/SPE shows good performance, showing a 17.4-fold sensitivity enhancement over bare SPEs in H<sub>2</sub>O<sub>2</sub> detection. The developed μPAD achieves wide linear ranges of 5 μM-20 mM (H<sub>2</sub>O<sub>2</sub>) and 20 μM-5 mM (glucose), with low detection limits of 0.97 μM and 8.1 μM, respectively. Furthermore, the μPAD shows wide linear ranges covering required detection ranges of glucose in urine, demonstrating its great potential in personal health monitoring and clinical applications requiring reliable glucose measurement in urine.</p>","PeriodicalId":64,"journal":{"name":"Analytical Methods","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Papia Sultana, Young Kyun Kim, Sung Jun Cho, Md Asadujjaman, Jun-Pil Jee
{"title":"Advances in cell membrane-coated nanoparticles: multifunctional platforms for targeted drug delivery, precision phototherapy, and enhanced immunotherapy.","authors":"Papia Sultana, Young Kyun Kim, Sung Jun Cho, Md Asadujjaman, Jun-Pil Jee","doi":"10.1039/d5bm00660k","DOIUrl":"https://doi.org/10.1039/d5bm00660k","url":null,"abstract":"<p><p>Nanoparticles (NPs) are nanometer-sized structures typically ranging from 1 to 100 nm in all three dimensions. Nanoparticles (NPs) have emerged as powerful tools in modern medicine, but their clinical translation has been hindered by issues such as rapid immune clearance, limited targeting, and off-target toxicity. Recent advances in cell membrane-coated nanoparticles (CM-NPs) provide an innovative solution by combining synthetic nanocarriers with natural cell membrane functionalities. By coating nanoparticles with membranes derived from red blood cells, cancer cells, immune cells, or platelets, CM-NPs inherit properties such as immune evasion, prolonged circulation, biocompatibility, and homotypic targeting. In drug delivery, CM-NPs enhance drug targeting and minimize off-target effects, especially in cancer therapy, where they selectively deliver chemotherapeutics to tumor cells. In phototherapy, these NPs enable precise tumor targeting for photothermal and photodynamic therapies, reducing damage to healthy tissues. In immunotherapy, immune cell-derived NPs modulate immune responses and improve cancer treatment efficacy by delivering immune modulators directly to the tumor microenvironment. Overall, CM-NPs provide a versatile platform to enhance the specificity, safety, and efficacy of drug delivery, phototherapy, and immunotherapy, with substantial potential for clinical translation and disease treatment. This review provides a comprehensive overview of CM-NP preparation methods, highlights their versatile biomedical applications, and critically discusses the remaining challenges and future directions. The insights presented here aim to guide the development of next-generation biomimetic nanomedicines with transformative clinical potential.</p>","PeriodicalId":65,"journal":{"name":"Biomaterials Science","volume":" ","pages":""},"PeriodicalIF":5.8,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jidan Yu, Na An, Lanwei Zhang, Zhi Duan, Jiadong Li
{"title":"The effect of the biofilm-forming <i>Lactiplantibacillus plantarum</i> F3-2 on improving lipid accumulation <i>in vitro</i>.","authors":"Jidan Yu, Na An, Lanwei Zhang, Zhi Duan, Jiadong Li","doi":"10.1039/d5fo02121a","DOIUrl":"https://doi.org/10.1039/d5fo02121a","url":null,"abstract":"<p><p>Obesity correlates with gut microbiota dysbiosis, with beneficial microbial intervention emerging as a promising therapeutic strategy for obesity-associated metabolic disorders. In previous studies, we screened <i>Lactiplantibacillus plantarum</i> F3-2 (<i>L. plantarum</i> F3-2) with the ability to inhibit lipid accumulation, but its biofilm-forming capacity and consequent impacts on probiotic functionality remain uncharacterized. Based on this, this study characterized the biofilm formation capacity of <i>L. plantarum</i> F3-2, analyzing its structural organization along with extracellular matrix composition. Comparative evaluation between planktonic and biofilm-states was performed using <i>in vitro</i> models to assess differential responses in gastrointestinal tolerance and probiotic functionality. Results revealed <i>L. plantarum</i> F3-2 as a robust biofilm-forming strain, developing biofilms approximately 11 μm thick after 24 h of cultivation, with extracellular polysaccharides identified as the primary extracellular matrix component. <i>In vitro</i> assays showed that biofilm-state <i>L. plantarum</i> F3-2 exhibited superior gastrointestinal tolerance, HT-29 cell adhesion, and 3T3-L1 adipocyte lipid accumulation inhibition compared to planktonic cells. These results provide a foundation for developing high-efficacy <i>L. plantarum</i> F3-2 probiotic products targeting adipogenesis suppression.</p>","PeriodicalId":77,"journal":{"name":"Food & Function","volume":" ","pages":""},"PeriodicalIF":5.1,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Soft MatterPub Date : 2025-07-25DOI: 10.1039/d5sm00562k
Tadej Emeršic̆, Rui Zhang, Simon C̆opar, Juan J de Pablo, Uroš Tkalec
{"title":"Microchannel geometry effects on nematic dowser domain dynamics.","authors":"Tadej Emeršic̆, Rui Zhang, Simon C̆opar, Juan J de Pablo, Uroš Tkalec","doi":"10.1039/d5sm00562k","DOIUrl":"https://doi.org/10.1039/d5sm00562k","url":null,"abstract":"<p><p>Understanding the dynamics of topological defects in liquid crystals is essential for optimizing their performance in adaptive optics, responsive surfaces, and advanced display technologies. Here, we investigate the dynamics of disclination loops enclosing an escaped structure in a nematic liquid crystal, known as dowser domains, within microfluidic channels of various geometries. Through a combination of experiments and numerical simulations, we demonstrate that fluid flow, dictated by the channel geometry alone, governs the dynamics, shape, and size of these domains. We find that channel constrictions extend the lifetime of dowser domains by accelerating their growth, while channel expansions slow down their dynamics and shorten their lifetime. In addition, manipulating the flow paths of dowser domains through serpentine microchannels can further influence their shape and lifespan. We also demonstrate domain splitting in a T-junction microchannel. These findings pave the way for the design of hierarchical networks that can manipulate dowser domains in high-throughput parallel channel systems. Taken together, the results presented here improve our understanding of defect loop dynamics in soft materials and advance the development of flow-based liquid crystal devices and applications.</p>","PeriodicalId":103,"journal":{"name":"Soft Matter","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Application of an FR4 printed circuit board for the fabrication of a simple and low cost patterned Cu disk for the determination of paraquat.","authors":"Narjes Negahdari, Behzad Haghighi","doi":"10.1039/d5ay00824g","DOIUrl":"https://doi.org/10.1039/d5ay00824g","url":null,"abstract":"<p><p>An FR4 printed circuit board was used to fabricate a patterned Cu disk electrode (p-Cu). It was modified with a Nafion layer (p-Cu/Nafion) and used as a disposable (single-use) sensor for the determination of paraquat. Cyclic voltammetry and linear sweep voltammetry (LSV) were used to obtain the optimal route for paraquat determination using p-Cu/Nafion. The effects of the concentration of Nafion, the type, concentration and pH of supporting electrolyte, and the applied accumulation time and potential on LSV responses of PQ were investigated. Two linear relationships were observed between square wave voltammetry (SWV) responses and the concentration of PQ in the range of 0.5-15 and 25-100 μM, under optimal experimental conditions. The obtained limit of detection (S/N = 3) and limit of quantification (S/N = 10) were 0.29 and 1.0 μM, respectively. The effects of the presence of possible interfering compounds on the SWV responses of PQ were examined and the sensor was applied for the determination of PQ in tomato juice with satisfactory results.</p>","PeriodicalId":64,"journal":{"name":"Analytical Methods","volume":" ","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Enhanced bound antioxidant capacity of oat bran treated with green tea infusion modulates antioxidant release and short chain fatty acid formation during colonic fermentation.","authors":"Ezgi Doğan Cömert, Vural Gökmen, Edoardo Capuano","doi":"10.1039/d5fo01281c","DOIUrl":"https://doi.org/10.1039/d5fo01281c","url":null,"abstract":"<p><p>Bound antioxidants play a significant role in human health due to their slow and continuous release throughout the colon. Oat bran (OB) is a key source of bound antioxidants; however, its antioxidant capacity is limited. This capacity could be enhanced through treatment with green tea infusion (GTI) under optimum conditions, resulting in GTI treated OB. This study investigated the release of antioxidants from GTI treated OB during both <i>in vitro</i> digestion and colonic fermentation using <i>in vitro</i> batch and SHIME model systems. Antioxidant capacity was determined in both soluble and insoluble fractions using the QUENCHER approach. The released antioxidant capacity during <i>in vitro</i> batch fermentation was associated with catechin metabolites. The effects on gut microbiota metabolites, specifically short chain fatty acids (SCFA), were examined. Additionally, the interaction between OB and green tea extract (GTE), referred to as OB + GTE, during co-digestion and fermentation was tested. Compared to GTE alone and OB + GTE, GTI treated OB showed superior antioxidant activity (2-6-fold higher) in both insoluble and soluble fractions during short- and long-term exposure. The antioxidant release during fermentation of GTI treated OB was strongly correlated with the concentration of pyrogallol (<i>r</i> = 0.693) and 3,4-dihydroxyphenylacetic acid (<i>r</i> = 0.625). Half of its antioxidant capacity remained in the insoluble fraction. Both GTI treated OB and OB + GTE stimulated SCFA production, with concentrations of 25.25 ± 2.53 mM and 30.62 ± 5.03 mM in the distal colon, respectively. These findings suggest that the enhanced bound antioxidant capacity of OB has beneficial health effects on colon health by increasing antioxidant capacity and stimulating SCFA production.</p>","PeriodicalId":77,"journal":{"name":"Food & Function","volume":" ","pages":""},"PeriodicalIF":5.1,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
RSC AdvancesPub Date : 2025-07-25DOI: 10.1039/D5RA01677K
Shittu Abdullahi, Ahmed Alshahrie, Aznan Fazli Ismail and Numan Salah
{"title":"Effects of UV irradiation on the structural and optical properties of epoxy/dysprosium nanocomposite sheets for possible UV dosimetry and optoelectronic applications†","authors":"Shittu Abdullahi, Ahmed Alshahrie, Aznan Fazli Ismail and Numan Salah","doi":"10.1039/D5RA01677K","DOIUrl":"https://doi.org/10.1039/D5RA01677K","url":null,"abstract":"<p >The exceptional properties of epoxy polymers are well-known because of their insulating properties, chemical resistance, and mechanical strength. Positioning them as favorable polymers compared to other polymers. But, despite these exceptional properties, epoxy materials have disadvantages, including brittleness and susceptibility to oxygen and UV light. To minimize these limitations and test the potential applications of epoxy polymers in UV sensing, we incorporated dysprosium ions (Dy<small><sup>3+</sup></small>) into the epoxy matrix using a simple chemical route by employing ethanol as a suitable solvent for both materials. The sheets were characterized using multiple techniques, including SEM, XRD, Raman, and PL. Using this technique, we achieved a PL emission enhancement up to 17 times that of pure epoxy and improved UV stability. Epoxy/Dy nanocomposite sheets showed sharp PL peaks with increasing Dy<small><sup>3+</sup></small> ion concentrations, besides minor shifts in the PL emission peak centers, indicating possible tuning of the optical properties of the epoxy. The epoxy sheets containing 1% of Dy<small><sup>3+</sup></small> ions were further exposed to UV light for different exposure times. The PL emission intensities of the irradiated sheets exhibited changes, including variations in peak position and FWHM of the spectra, with increasing UV exposure time. Additionally, the UV sensitivity in the nanocomposite sheets was found to be significantly improved. The linearity of these sheets' response was investigated using linear regression analysis, yielding a high adjusted <em>R</em><small><sup>2</sup></small> of greater than 98%. This high <em>R</em><small><sup>2</sup></small> confirmed their excellent linearity response, as well as their long-term PL intensity stability, retaining over 50% of the PL intensities after one month of irradiation. Therefore, the drastic increase in PL emissions due to the presence of Dy<small><sup>3+</sup></small> ions in epoxy sheets, the linearity of the response, and the long-term stability of PL intensity, in addition to the reproducibility of the signals over a long time, validate the potential of these sheets for UV sensing and other optoelectronic device applications.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 33","pages":" 26567-26582"},"PeriodicalIF":3.9,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra01677k?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144695681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}