RSC Advances最新文献

{"title":"Synergic effect and biosafety of chitosan/zinc complex nanoparticle-based carboxymethyl cellulose coatings for postharvest strawberry preservation†","authors":"Ha Thi Thu Bui, Le Thi Thanh Dang, Hue Thi Nguyen, Le Thi Le, Huy Quang Tran and Thuy Thi Thu Nguyen","doi":"10.1039/D5RA00140D","DOIUrl":"https://doi.org/10.1039/D5RA00140D","url":null,"abstract":"<p >Nanotechnology represents a burgeoning field that revolutionizes various industries and sectors, including food applications. In this study, chitosan nanoparticles (CS NPs), zinc oxide nanoparticles (ZnO NPs), and chitosan–zinc complex nanoparticles (CS/Zn NPs) were prepared and incorporated into carboxymethyl cellulose (CMC) coatings to examine their strawberry preservation efficiency. CS NPs, synthesized <em>via</em> ionic gelation, appeared with a spherical shape and a relatively uniform size below 50 nm. ZnO NPs, produced through a green electrochemical method, formed larger aggregates. CS/Zn NPs were formed due to the chelation of CS NPs with Zn<small>²⁺</small> present in the fresh zinc electrochemical solution. In antibacterial tests against <em>Escherichia coli</em> and <em>Staphylococcus aureus</em>, CS/Zn NPs exhibited significantly lower MIC and MBC values compared to CS NPs and ZnO NPs individually, indicating a synergistic antibacterial effect between the components. CMC coatings containing these nanoparticles were applied to strawberry surfaces and the fruits were stored at room temperature (25 °C) and in a refrigerator (5 °C). The CS/Zn-CMC coating demonstrated the most pronounced effect in preventing weight loss and decrease of titratable acidity (TA) and ascorbic acid (AA) content over storage. It effectively preserved the original appearance of strawberries, delaying browning until day 15, while the control and other coated samples were completely spoiled within this period. The cytotoxicity assessment indicated the safety of CS/ZnO-CMC coating, suggesting its potential application in fruit preservation.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 20","pages":" 15539-15549"},"PeriodicalIF":3.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra00140d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938093","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}

{"title":"Preparation of a Ni–ascorbic acid MOF as a recyclable catalyst for the synthesis of sulfoxides and tetrazoles†","authors":"Mostafa Koolivand, Zahra Moradi, Mohsen Nikoorazm and Arash Ghorbani-Choghamarani","doi":"10.1039/D5RA00355E","DOIUrl":"https://doi.org/10.1039/D5RA00355E","url":null,"abstract":"<p >This study introduces a novel, cost-effective, and environmentally friendly approach for synthesizing a heterogeneous Ni–ascorbic acid metal–organic framework (Ni–ascorbic acid MOF) catalyst <em>via</em> a hydrothermal method. The catalyst was prepared by combining nickel nitrate (Ni(NO<small>₃</small>)<small>₂</small>·6H<small>₂</small>O) and ascorbic acid (C<small>₆</small>H<small>₈</small>O<small>₆</small>) in DMF. Comprehensive characterization of the synthesized Ni–ascorbic acid MOF was performed using FT-IR, XRD, EDX, BET, SEM, TGA/DSC, and AAS techniques. These analyses revealed that the catalyst exhibits a spherical microsphere morphology with high crystallinity, a specific surface area of 16.62 m<small>²</small> g<small>⁻¹</small>, a pore diameter of 19.52 nm, and excellent thermal stability. The catalytic performance of Ni–ascorbic acid MOF was investigated in two distinct reactions, including the selective oxidation of sulfides to sulfoxides and the synthesis of 5-substituted 1<em>H</em>-tetrazoles. Under optimized reaction conditions, the catalyst demonstrated high efficiency with product yields ranging from moderate to excellent across various substrates. Furthermore, the catalyst exhibited remarkable recyclability, maintaining its activity over five consecutive cycles without significant leaching of nickel species, as confirmed by hot filtration tests. These findings underscore the potential of a Ni–ascorbic acid MOF as a sustainable and robust catalyst for diverse organic transformations.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 20","pages":" 15748-15762"},"PeriodicalIF":3.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra00355e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938159","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}

{"title":"Interfacially engineered metal oxide nanocomposites for enhanced photocatalytic degradation of pollutants and energy applications","authors":"Mahmoud A. Ahmed, Safwat A. Mahmoud and Ashraf A. Mohamed","doi":"10.1039/D4RA08780A","DOIUrl":"https://doi.org/10.1039/D4RA08780A","url":null,"abstract":"<p >Escalating global energy demands and environmental pollution necessitate innovative solutions for sustainable development. Conventional methods often prove inadequate, driving research towards advanced materials and technologies. This review critically analyzes existing industrial wastewater treatment approaches, highlighting their merits and limitations, before focusing on the recent advancements in metal oxide-based nanocomposite photocatalysis for both pollutant degradation and energy generation. Moreover, the structural, electronic, and optical properties of metal oxides (MOx) are elucidated. The review discusses various MOx synthesis routes and their nanocomposites and elucidates the underlying photocatalytic mechanisms, emphasizing the influence of operational parameters on photocatalytic efficiency. Moreover, it explores how MOx can be utilized for photocatalytic energy generation, in addition to their role in pollutant degradation. Furthermore, it delves into the synergistic effects achieved by combining MOx with complementary nanomaterials (carbon-based structures, polymers, non-metals, semiconductors, and metal sulfides) to create hybrid nanocomposites with enhanced photocatalytic activity for both applications. A cost analysis and SWOT analysis are presented to assess the economic and technological feasibility of this trend. This comprehensive overview provides valuable insights for developing efficient, sustainable, and scalable wastewater treatment solutions using MOx-based nanocomposites, ultimately contributing to improved environmental remediation and water resource management while simultaneously exploring opportunities for energy production.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 20","pages":" 15561-15603"},"PeriodicalIF":3.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d4ra08780a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938061","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}

{"title":"Trials of a drug release platform in near-spherical porous NiTi alloys containing a thermosensitive hydrogel as the inner coating†","authors":"Zicheng Wan, Dongyang Li, Yang Zhou, Tun Wang, Benyin Zhu, Changhai Du, Yimin Li and Chang Shu","doi":"10.1039/D5RA01925G","DOIUrl":"https://doi.org/10.1039/D5RA01925G","url":null,"abstract":"<p >This study presents a preliminary investigation of porous nickel-titanium (NiTi) materials with controllable porosity fabricated through metal injection molding combined with the powder space-holder method (MIM-PSH). The thermosensitive hydrogel Pluronic F-127 was utilized as a drug carrier to load the anti-proliferative drug rapamycin, resulting in porous NiTi-hydrogel composite materials for controlled drug release. By tuning the NiTi matrix porosity (0%, 20%, and 40%), the system achieved precise modulation of drug loading capacity and release kinetics. Notably, the 40% porous NiTi composite exhibited a threefold increase in the drug-loading capacity and sustained release over 17 days. This hybrid design leveraged the thermoresponsive properties of the hydrogel and the tailored pore architecture to enable spatiotemporal control of rapamycin delivery, effectively inhibiting human aortic smooth muscle cell proliferation and mitigating <em>in vivo</em> vascular tissue hyperplasia. This study provides a foundational framework for the development of multifunctional biomaterial systems for vascular therapy.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 20","pages":" 15639-15650"},"PeriodicalIF":3.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra01925g?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938066","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}

{"title":"Nanoarchitectonics of a covalent organic supramolecular cage (COSC) for fluorescent visual detection of macrolides†","authors":"Yu-Ming Guan, Hang Gao, Wen-Bo Xu, Peiyang Su, Tingxia Zhou, Ting-Zheng Xie, Mingjian Wang, Hongguang Luo and Pingshan Wang","doi":"10.1039/D4RA09077B","DOIUrl":"https://doi.org/10.1039/D4RA09077B","url":null,"abstract":"<p >Macrolides, a major group of antibiotic pollutants, have been widely observed in water and sediments. For onsite identification of macrolides in water environments, we designed and synthesized a quadrangular prism-shaped covalent organic supramolecular cage (COSC) <em>via</em> an aldol-amine condensation. Multiple hydrogen bonding sites were introduced into the building blocks to increase host–guest interactions. Meanwhile, by introducing a stimuli-sensitive module, TPE, the fluorescence of the supramolecule changes upon encapsulation of the clarithromycin guest which was a type of macrolides. The cage structure was fully characterized using NMR and high-resolution ESI mass spectrometry. The fluorescence recognition process and detection limitations of the cage for clarithromycin were investigated using NMR, UV-vis, and fluorescence spectroscopy. This study expands the application of precisely designed covalent supramolecular cages for monitoring antibiotic-based environmental pollutants.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 20","pages":" 15476-15479"},"PeriodicalIF":3.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d4ra09077b?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938086","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}

{"title":"Optical and crystalline properties of benzo[1,2-b:4,5-b′]dithiophene derivatives†","authors":"Caiyun Guo, Yibin Wang, Chenghao Zhang, Hui Liu and Liangliang Han","doi":"10.1039/D5RA02189H","DOIUrl":"https://doi.org/10.1039/D5RA02189H","url":null,"abstract":"<p >When designing solution-processable semiconducting molecules and polymers, benzo[1,2-<em>b</em>:4,5-<em>b</em>′]dithiophene (BDT) derivatives are widely used because of their planar structures, superior optical properties, ease of synthesis and ease of modification. In this work, four BDT derivatives—BDTT, BDTT–Et, BDTT–OMe and BDTT–CH<small>₂</small>–OMe—were designed and synthesized with different side chains, considering the important roles of side chains in the performance of organic semiconductors. Especially for BDTT–CH<small>₂</small>–OMe, with a new methoxymethyl chain, it exhibited excellent optical properties and the deepest highest occupied molecular orbital energy level (<em>E</em><small>_HOMO</small>) among these derivatives. Moreover, it demonstrated strong intermolecular interactions and tight π–π stacking. The optical, electrochemical and crystalline properties suggested that BDTT–CH<small>₂</small>–OMe could be further modified as a potential building block for the design of electron-donating small molecules (SMs) or polymers when used in organic electronics, such as bulk heterojunction organic solar cells (BHJ-OSCs).</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 20","pages":" 15604-15608"},"PeriodicalIF":3.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra02189h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938062","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}

{"title":"Direct correlation between open-circuit voltage and quasi-fermi level splitting in perovskite solar cells: a computational step involving thickness, doping, lifetime, and temperature variations for green solutions","authors":"Muhammad Umar Salman, Muhammad Mehak, Umair Ali, Ghulam Moin U Din, Shahid M. Ramay, M. Younis and Shahid Atiq","doi":"10.1039/D5RA01868D","DOIUrl":"https://doi.org/10.1039/D5RA01868D","url":null,"abstract":"<p >In this study, a 1D perovskite-based solar cell was simulated using COMSOL, incorporating CH<small>₃</small>NH<small>₃</small>GeI<small>₃</small> (organic in-organic hybrid) as an absorber layer, SnO<small>₂</small> as the electron transport layer (ETL), and Cu<small>₂</small>Te as the hole transport layer (HTL). The simulations reveal that reducing the ETL's thickness enhances current density (<em>J</em>), although the maximum output power (<em>P</em><small>_max</small>) diminishes with ETL's thickness. Conversely, increasing the absorber layer's thickness boosts open-circuit voltage (<em>V</em><small>_oc</small>) and efficiency, exhibiting direct relation between <em>V</em><small>_oc</small> and quasi-Fermi level splitting. Furthermore, variations in HTL thickness do not significantly affect <em>V</em><small>_oc</small> or <em>P</em><small>_max</small>. Notably, <em>V</em><small>_oc</small> and <em>P</em><small>_max</small> both increase with acceptor density, conversely, increase in donor density leads to declines in both <em>V</em><small>_oc</small> and <em>P</em><small>_max</small>. While extending the electron–hole (e–h) lifetime within the ETL results in marginal efficiency improvements, significant enhancements in the e–h lifetime within the absorber layer substantially improve performance. However, the efficiency remains unaffected by variations in the e–h lifetime of the HTL. Additionally, higher operating temperatures adversely impact device performance, reducing <em>J</em>, <em>V</em><small>_oc</small>, <em>P</em><small>_max</small>, fill factor, and overall efficiency. This study provides critical insights into optimizing material properties and device parameters for experimental applications, underscoring the potential of CH<small>₃</small>NH<small>₃</small>GeI<small>₃</small>-based perovskites as viable candidates for next-generation photovoltaic technologies.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 20","pages":" 15618-15629"},"PeriodicalIF":3.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra01868d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938064","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}

{"title":"Insights into the synthesis and structural properties of pro-chiral 2-acetyl-N-aryl-2-(prop-2-yn-1-yl)pent-4-ynamides/-2-allyl-4-enamide derivatives through kinetics and energy frameworks†","authors":"Disha P. Vala, Bhavesh N. Socha, Victoria G. Collins, Mehul P. Parmar, Chirag D. Patel, Savan S. Bhalodiya, Subham G. Patel, Sourav Banerjee and Hitendra M. Patel","doi":"10.1039/D5RA02166A","DOIUrl":"https://doi.org/10.1039/D5RA02166A","url":null,"abstract":"<p >In this study, we successfully synthesized a series of pro-chiral 2-acetyl-<em>N</em>-aryl-2-(prop-2-yn-1-yl)pent-4-ynamide/-2-allyl-4-enamide derivatives <strong>5(a–n)</strong> starting from 4-enamide-<em>N</em>-(prop-2-yn-1-yl)pent-4-ynamide/-<em>N</em>-allyl-4-enamide <strong>4</strong> through a bimolecular nucleophilic substitution (S<small>_N</small>2) reaction. We report, for the first time, a novel C–C bond formation between allyl and acetoacetanilide derivatives, supported by detailed mechanistic analysis involving alkyne interactions. The reaction mechanism, characterized by a nucleophilic attack at the substrate's carbon center leading to displacement of the leaving group, was validated through intrinsic reaction coordinate (IRC) analysis, providing deeper insights into its pathway and dynamics.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 20","pages":" 15712-15723"},"PeriodicalIF":3.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra02166a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938071","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}

{"title":"Synthesis of imidazopyridines via NaIO4/TBHP-promoted (3 + 2) cycloaddition and biological evaluation as anticancer agents†","authors":"Huiping Luo, Zhengyu Hu, Jihai Shi, Yongxin Lou, Zhonghua Shi, Xin Jin, Jia Chen, Xing Liu and Qiang Huang","doi":"10.1039/D5RA01949D","DOIUrl":"https://doi.org/10.1039/D5RA01949D","url":null,"abstract":"<p >A novel and simple NaIO<small>₄</small>/TBHP-promoted (3 + 2) cycloaddition reaction of propargyl alcohols and 2-aminopyridines was discovered for the synthesis of imidazo[1,2-<em>a</em>]pyridines. This protocol exhibits a broad substrate scope for both propargyl alcohols and 2-aminopyridines, with high functional group tolerance, leading to the formation of various C3-carbonylated imidazopyridines in moderate yields. More importantly, these synthesized compounds were evaluated for their antiproliferation activity against MOLM-13 and MV4-11 cells, indicating that <strong>3n</strong>, <strong>5a</strong> and <strong>5d</strong> possessed good bioactivity. Molecular docking analysis showed the strong interaction between <strong>5a</strong>, <strong>5d</strong> and FLT3 kinase, which have practical values in the development of kinase inhibitors.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 20","pages":" 15497-15504"},"PeriodicalIF":3.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra01949d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938089","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}

{"title":"Mechanistic study of aluminum alloy corrosion under the interaction of Embellisia sp. and Candida xyloterini†","authors":"Bingxin Li, Xinru Ge, Zhenhua Zhou, Xiaodong Zhao, Weijie Fan, Zhipeng Lu and Hongyue Li","doi":"10.1039/D5RA02115D","DOIUrl":"https://doi.org/10.1039/D5RA02115D","url":null,"abstract":"<p >Microorganisms and their cultural traits significantly affect the service performance and durability of materials. Currently, research on the corrosion mechanisms of microorganisms affecting aluminum alloys primarily focuses on bacterial corrosion, with fewer studies addressing the corrosion behavior and mechanisms caused by fungi. This study investigated the corrosion behavior of aluminum alloys under the interaction of two fungi, <em>Embellisia</em> sp. and <em>Candida xyloterini</em>, as well as their composite systems. Electrochemical impedance analysis revealed that both fungi inhibited the corrosion of aluminum alloys, with the degree of inhibition ranking in descending order as follows: <em>Embellisia</em> sp., mixed systems, and <em>C. xyloterini</em>. The main reasons for the inhibition of corrosion were the aerobic nature of the two fungi and the formation of a composite membrane structure on the metal surface, which consisted of both the corrosion product film and the biofilm. Fungal growth curves indicated that the co-culture led to a reduction in the number of fungi, resulting in a decrease in biofilm density and resistance to corrosive ions. Consequently, the two fungi exhibited an antagonistic effect in inhibiting the corrosion of aluminum alloys.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":" 19","pages":" 14903-14916"},"PeriodicalIF":3.9,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra02115d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938155","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}