Carbohydrate Polymers最新文献

Methyl-tolerant enzymes coupled with glycomics-based workflow facilitates porphyran structure characterization. 甲基耐受酶与基于糖酵素的工作流程相结合，有助于卟啉结构表征。

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-11-15 Epub Date: 2025-08-06 DOI: 10.1016/j.carbpol.2025.124179

Yuhao Sun, Qing Guan, Yuying Zhang, Siqi Cao, Changhu Xue, Yaoguang Chang

{"title":"Methyl-tolerant enzymes coupled with glycomics-based workflow facilitates porphyran structure characterization.","authors":"Yuhao Sun, Qing Guan, Yuying Zhang, Siqi Cao, Changhu Xue, Yaoguang Chang","doi":"10.1016/j.carbpol.2025.124179","DOIUrl":"10.1016/j.carbpol.2025.124179","url":null,"abstract":"Porphyran is a promising bioactive ingredient mainly composed of alternating (1→4)-α-l-galactose 6-sulfate (L6S) and (1→3)-β-d-galactose (G), with L6S units partially substituted by 3,6-anhydro-l-galactose (LA), and the O-6 position of G residues could be occasionally modified by methyl group (Me). Comprehensive research on porphyran requires efficient and precise structure characterization. In this study, a novel enzyme-glycomics strategy for porphyran structure analysis was developed. The approach involved adequately degradation of porphyran by methyl-tolerant agarase Aga86A_Wa and porphyranase Por16C_Wf. The resulting oligosaccharides were detected via UPSEC-HRMS and automatically analyzed using glycoinformatics software. The identified oligomers included (L6S-G)Me0-1, (LA-G)1-2, (L6S-G)(LA-G)Me0-1, (L6S-G)2(LA-G)Me0-2, (L6S-G)(LA-G)2Me0-1. This confirms the identification of the consecutive homogeneous blocks (consisting of L6S-G or LA-G), alternating heterogeneous blocks (consisting of L6S-G and LA-G), and their methylated derivatives of porphyran. Furthermore, This method successfully distinguished the structure variations of porphyran in Porphyra from different harvest periods, species and producing areas. It provides a feasible approach for efficient and precise analyses of major and heterogeneous structure fragments of porphyran, and supports future investigations into porphyran structure-activity relationships.","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"368 Pt 2","pages":"124179"},"PeriodicalIF":12.5,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145062988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multifunctional bio-based wearable ionogel with hierarchical dynamic covalent crosslinked double networks enabled by surface active xylan. 具有多层动态共价交联双网络的多功能可穿戴生物离子凝胶，由表面活性木聚糖实现。

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-11-15 Epub Date: 2025-08-06 DOI: 10.1016/j.carbpol.2025.124187

Siyu Jia, Zixing Feng, Xueqing Yan, Zhiguo Zhang, Jun Rao, Zhengjun Shi, Junli Ren, Feng Peng

{"title":"Multifunctional bio-based wearable ionogel with hierarchical dynamic covalent crosslinked double networks enabled by surface active xylan.","authors":"Siyu Jia, Zixing Feng, Xueqing Yan, Zhiguo Zhang, Jun Rao, Zhengjun Shi, Junli Ren, Feng Peng","doi":"10.1016/j.carbpol.2025.124187","DOIUrl":"https://doi.org/10.1016/j.carbpol.2025.124187","url":null,"abstract":"Ionogels have emerged as promising candidates for flexible electronics due to their unique properties. However, the development of bio-based ionogels that simultaneously satisfy the requirements of facile fabrication, multifunctionality, and recyclability remains a significant challenge. Herein, the design and preparation of a high-performance ionogel based on lipoic acid and alkenyl xylan (LA-XEA ionogel) is reported. The bio-based ionogel featuring hierarchical dynamic covalent cross-linked double networks (HBD-CAN) via melt processing. Xylan simultaneously inhibits the closed-loop depolymerization of polymeric LA chains while functioning as a cross-linking agent in the ionogel network, resulting in improved mechanical strength. The resulting LA-XEA ionogel demonstrates remarkable properties, including exceptional stretchability (1500 %), strong skin adhesion (33 kPa), high conductivity (6.20 mS/m), excellent optical transparency (>85 %), rapid self-healing capability, and full recyclability. Significantly, LA-XEA ionogel exhibits multi-response mode to both tensile and temperature stimuli, rendering it an ideal candidate for the development of highly sensitive strain and temperature sensors. Meanwhile, LA-XEA ionogel is suitable for wearable sensors to achieve high-quality electrophysiological signal acquisition. This work provides a promising strategy for designing xylan-based ionogels.","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"368 Pt 2","pages":"124187"},"PeriodicalIF":12.5,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145062996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polydopamine-functionalized graphene for stabilizing starch-based 3D networks and synergistically enhancing film properties. 聚多巴胺功能化石墨烯用于稳定淀粉基3D网络和协同增强薄膜性能。

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-11-15 Epub Date: 2025-08-06 DOI: 10.1016/j.carbpol.2025.124185

Hao Xu, David Julian McClements, Yao Hu, Hao Cheng, Jinyi Wu, Xuan Wang, Zhengyu Jin, Long Chen

{"title":"Polydopamine-functionalized graphene for stabilizing starch-based 3D networks and synergistically enhancing film properties.","authors":"Hao Xu, David Julian McClements, Yao Hu, Hao Cheng, Jinyi Wu, Xuan Wang, Zhengyu Jin, Long Chen","doi":"10.1016/j.carbpol.2025.124185","DOIUrl":"https://doi.org/10.1016/j.carbpol.2025.124185","url":null,"abstract":"Functional filler materials are often incorporated into films assembled from natural polymers to enhance their optical, mechanical, barrier, and preservative properties. However, the efficacy of these fillers depends on their compatibility with the surrounding polymer matrix. The application of carbon-based fillers in films is often limited by their strongly hydrophobic nature, which restricts their dispersion and interaction within hydrophilic polymer matrices. Inspired by mussel adhesion, we employed in situ dopamine self-polymerization to modify the surfaces of graphene nanosheets, which significantly improved their compatibility with hydrophilic starch matrices. The interfacial interactions of the graphene nanosheets with the starch matrix were analyzed using density functional theory (DFT) simulations. In addition, rheology and low-field nuclear magnetic resonance (LF-NMR) analyses indicated the formation of a stable three-dimensional network structure between the modified graphene fillers and the starch matrix. The formation of this network enhanced the structural integrity of the films and impeded crack propagation. As a result, the tensile strength of the composite film increased from around 14.8 to 27.9 MPa, while the water vapor and oxygen permeability were reduced by around 30 % and 40 %, respectively. This novel strategy could be extended to other biopolymers, thereby enabling the design of multifunctional, high-performance green composites for next-generation packaging and other applications.","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"368 Pt 2","pages":"124185"},"PeriodicalIF":12.5,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145062977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Oxidative cleavage of methyl-esterified pectic homogalacturonan by an AA17 lytic polysaccharide monooxygenase from Phytophthora infestans. 来自疫霉的a17裂解多糖单加氧酶氧化裂解甲基化果胶高半乳糖酸。

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-11-15 Epub Date: 2025-07-24 DOI: 10.1016/j.carbpol.2025.124112

Peicheng Sun, Mao Peng, Florian Csarman, Astrid Müller, Nan Zhang, Willem J H van Berkel, Roland Ludwig, Ronald P de Vries, Mirjam A Kabel

{"title":"Oxidative cleavage of methyl-esterified pectic homogalacturonan by an AA17 lytic polysaccharide monooxygenase from Phytophthora infestans.","authors":"Peicheng Sun, Mao Peng, Florian Csarman, Astrid Müller, Nan Zhang, Willem J H van Berkel, Roland Ludwig, Ronald P de Vries, Mirjam A Kabel","doi":"10.1016/j.carbpol.2025.124112","DOIUrl":"10.1016/j.carbpol.2025.124112","url":null,"abstract":"Lytic polysaccharide monooxygenases (LPMOs) are mono‑copper-dependent enzymes that catalyze the oxidative breakdown of polysaccharides. The recently discovered AA17 family, exclusively found in oomycete genomes, plays a critical role in plant-pathogen interactions, with Phytophthora infestans AA17 (PiAA17) LPMOs shown to degrade homogalacturonan (HG). In plant cell walls, HG is methyl-esterified, but the influence of this modification on the mode-of-action of AA17 LPMOs is unknown. In this study, we established the phylogenetic distribution of the AA17 family, which diverged into six clades. Three AA17 enzymes from distinct clades were successfully heterologously produced. PiAA17C, the only one of three tested AA17 enzymes active on HG substrates, oxidatively cleaved HGs with degrees of methyl-esterification (DM) of 0, 20, and 60, but not highly methyl-esterified HG (DM92). Advanced liquid chromatographic and mass spectrometric analysis demonstrated that PiAA17C generated C4-oxidized and decarboxylated C4-oxidized oligogalacturonides. Among these products, those having internal methyl-esterified galacturonic acid (MeGalA) residues were more abundant than those with reducing end MeGalA residues. PiAA17C preferably cleaved HG between two non-methylated GalA residues, followed by cleavages involving one GalA and one MeGalA residue, with the lowest preference for cleavage between two MeGalA residues.","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"368 Pt 2","pages":"124112"},"PeriodicalIF":12.5,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145062985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ethylene-responsive factor HvERF72 regulates starch synthesis and B-type starch granules initiation in barley. 乙烯响应因子HvERF72调控大麦淀粉合成和b型淀粉粒形成。

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-11-15 Epub Date: 2025-08-05 DOI: 10.1016/j.carbpol.2025.124167

Gaozong Zhou, Jinjin Ding, Yulong Li, Qiang Xu, Yazhou Zhang, Huaping Tang, Pengfei Qi, Mei Deng, Jian Ma, Guoyue Chen, Jirui Wang, Na Lin, Yuming Wei, Qiantao Jiang

{"title":"Ethylene-responsive factor HvERF72 regulates starch synthesis and B-type starch granules initiation in barley.","authors":"Gaozong Zhou, Jinjin Ding, Yulong Li, Qiang Xu, Yazhou Zhang, Huaping Tang, Pengfei Qi, Mei Deng, Jian Ma, Guoyue Chen, Jirui Wang, Na Lin, Yuming Wei, Qiantao Jiang","doi":"10.1016/j.carbpol.2025.124167","DOIUrl":"10.1016/j.carbpol.2025.124167","url":null,"abstract":"Starch biosynthesis is a pivotal determinant of barley grain quality and yield, yet its regulatory mechanisms remain incompletely characterized. This study identifies HvERF72, an AP2-domain transcription factor, as a key regulator of starch biosynthesis and granule initiation in barley grains. Comparative analyses of CRISPR/Cas9-generated HvERF72 knockout mutants revealed enhanced B-type granule formation and elevated total starch content, whereas overexpression lines exhibited contrasting phenotypes, including reduced starch accumulation and suppressed B-type granule initiation. Transcriptional profiling at 15 DAF indicated significant upregulation of critical starch biosynthesis genes (HvAGPL1, HvAGPS1, HvSS2a, HvSBEI, HvSBEIIb, and HvGBSSI) in mutants, while overexpression lines showed downregulation of these genes. Mechanistic investigation demonstrated that HvERF72 directly binds to GCC-box motifs in the promoter regions of HvSS2a and HvSBEI, repressing their transcription. These findings establish HvERF72 as dual-function regulator that modulates starch biosynthesis and B-type granule initiation, providing novel molecular targets for optimizing starch yield and industrial quality in barley breeding programs.","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"368 Pt 2","pages":"124167"},"PeriodicalIF":12.5,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145063018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A snail glycosaminoglycan-derived patch inspired by extracellular matrix accelerates diabetic wound healing via promoting re-epithelization. 由细胞外基质激发的蜗牛糖胺聚糖衍生贴片通过促进再上皮化加速糖尿病伤口愈合。

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-11-15 Epub Date: 2025-08-05 DOI: 10.1016/j.carbpol.2025.124168

Tuo Deng, Jixing Li, Xuan Li, Xi Yang, Maixian Tao, Yuanyuan Wang, Xingzi Wang, Lei Sun, Huijuan Li, Mingyi Wu

{"title":"A snail glycosaminoglycan-derived patch inspired by extracellular matrix accelerates diabetic wound healing via promoting re-epithelization.","authors":"Tuo Deng, Jixing Li, Xuan Li, Xi Yang, Maixian Tao, Yuanyuan Wang, Xingzi Wang, Lei Sun, Huijuan Li, Mingyi Wu","doi":"10.1016/j.carbpol.2025.124168","DOIUrl":"10.1016/j.carbpol.2025.124168","url":null,"abstract":"Current clinical therapeutic protocols for diabetic foot ulcers (DFUs) remain inadequate due to their low response to therapeutic drugs and high recurrence rates. The normal healing process of diabetic wounds is frequently disrupted by factors such as microbial infections and elevated reactive oxygen species (ROS) levels. In this study, we developed a gel patch that can accelerate wound re epithelialization and scavenge ROS and antibacterial. To provide a dependable biological framework for wound tissue regeneration, this patch incorporates two components analogous to the extracellular matrix: snail glycosaminoglycan and gelatin. The multifunctional patch exhibited potent antibacterial activity, eliminating over 99.9 % of Staphylococcus aureus and Escherichia coli, and reduced reactive oxygen species (ROS) levels in oxidative stress-induced cells by 80 %. In a diabetic wound infection model, the patch inhibited bacterial colonization, accelerated re-epithelialization by two-fold, and lowered inflammatory markers, highlighting its dual antimicrobial and pro-healing effects. The patch demonstrated a precisely synchronized gradual degradation and controlled drug release profile, which aligned with the spatiotemporal dynamics of wound healing progression. In summary, this innovative approach presented a facile, safe, and highly efficient therapeutic strategy for the management of DFUs.","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"368 Pt 2","pages":"124168"},"PeriodicalIF":12.5,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145063030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comment on "Fungal-derived chitosan-based hydrogels with antimicrobial properties for infectious wound healing". The structure of aldehyde-modified chitosan is unclear. 评论“真菌衍生的具有抗菌性能的壳聚糖基水凝胶用于感染性伤口愈合”。醛修饰壳聚糖的结构尚不清楚。

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-11-15 Epub Date: 2025-08-06 DOI: 10.1016/j.carbpol.2025.124177

Zuhan Chen

引用次数: 0

Cellulose nanofiber-stabilized Pickering foam drilling fluids for low-pressure coalbed methane development. 用于低压煤层气开发的纤维素纳米纤维稳定Pickering泡沫钻井液。

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-11-15 Epub Date: 2025-08-06 DOI: 10.1016/j.carbpol.2025.124180

Dongqing Yang, Hao Yan, Liyao Dai, Muhammad Arqam Khan, Chaozheng Liu, Kaihe Lv, Jinsheng Sun, Mei-Chun Li

{"title":"Cellulose nanofiber-stabilized Pickering foam drilling fluids for low-pressure coalbed methane development.","authors":"Dongqing Yang, Hao Yan, Liyao Dai, Muhammad Arqam Khan, Chaozheng Liu, Kaihe Lv, Jinsheng Sun, Mei-Chun Li","doi":"10.1016/j.carbpol.2025.124180","DOIUrl":"https://doi.org/10.1016/j.carbpol.2025.124180","url":null,"abstract":"In recent years, coalbed methane (CBM) has received considerable attention because of its clean and efficient features. However, CBM reservoirs are typically characterized by low formation pressures, which pose significant challenges during drilling by causing substantial drilling fluid loss. Foam drilling fluids, characterized by low density and reduced hydrostatic pressure, have emerged as a viable solution to this problem. This study investigates the formulation and performance of high-performance foam drilling fluids, employing alkyl polyglucoside (APG) as the foaming agent and cellulose nanofibers (CNFs) as stabilizers. Three distinct types of CNFs were evaluated for their foam-stabilizing capabilities, i.e., mechanically treated CNFs (M-CNFs), TEMPO-oxidized CNFs (T-CNFs), and lignin-containing CNFs (L-CNFs). The results showed that T-CNFs exhibited superior foam stability compared to M-CNFs and L-CNFs. The synergistic interaction between APG and T-CNFs led to reduced surface tension, smaller foam bubbles, thicker and more viscous liquid films, and enhanced electrostatic repulsion between bubbles, resulting in enhanced foam stability. Moreover, the T-CNF-stabilized Pickering foam drilling fluid demonstrated excellent rheological and filtration properties. This study not only offers valuable insights into the development of efficient and sustainable foam drilling fluids using biomass-derived nanomaterials but also contributes to advancing environmentally friendly CBM exploration technologies.","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"368 Pt 2","pages":"124180"},"PeriodicalIF":12.5,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145062970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bacterial cellulose as green matrix material for environmental-friendly electronic devices. 细菌纤维素作为环保电子器件的绿色基质材料。

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-11-15 Epub Date: 2025-07-18 DOI: 10.1016/j.carbpol.2025.124075

Sanming Hu, Zhijun Shi, Kun Chen, Xiao Chen, Hongfu Zhou, Ning Yan, Guang Yang

{"title":"Bacterial cellulose as green matrix material for environmental-friendly electronic devices.","authors":"Sanming Hu, Zhijun Shi, Kun Chen, Xiao Chen, Hongfu Zhou, Ning Yan, Guang Yang","doi":"10.1016/j.carbpol.2025.124075","DOIUrl":"10.1016/j.carbpol.2025.124075","url":null,"abstract":"The proliferation of electronic devices has led to a substantial increase in non-degradable electronic waste (e-waste), posing significant environmental challenges. Consequently, biodegradable natural polymers have garnered considerable attention as sustainable alternatives to conventional non-degradable materials in electronic applications. Bacterial cellulose (BC), a natural polymer characterized by abundant hydroxyl groups and a three-dimensional (3D) nanonetwork structure, exhibits exceptional properties including high purity, superior mechanical strength, excellent water retention capacity, non-toxicity, renewability, and complete biodegradability. These unique attributes, coupled with its distinctive structural features, render BC as a promising green matrix material for developing functional composites in eco-friendly electronic devices. This review provides a systematic analysis of various eco-friendly composite materials derived from BC, covering conductive, piezoelectric, magnetoelectric, and thermoelectric composites. Additionally, the fabrication methodologies for BC-based composites, including in-situ chemical synthesis, ex-situ incorporation, and biosynthesis techniques, are comprehensively analyzed. Furthermore, the applications of BC-based composites was explored in diverse fields such as sensors, energy storage systems (batteries and supercapacitors), and energy harvesting devices (nanogenerators). Finally, we deliver a critical evaluation of the current challenges and future research directions for BC-based composites in the development of sustainable electronic devices.","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"368 Pt 2","pages":"124075"},"PeriodicalIF":12.5,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145062976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antibacterial hydrogel filters via in situ growth of Ag-doped ZIF-8 on cellulose nanofibers: A novel strategy for biofouling control in water treatment. 通过在纤维素纳米纤维上原位生长ag掺杂ZIF-8的抗菌水凝胶过滤器：一种控制水处理中生物污垢的新策略。

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-11-15 Epub Date: 2025-08-05 DOI: 10.1016/j.carbpol.2025.124174

Jinrong He, Limin Peng, Zhipeng Zhang, Yuzhang Wu, Wei Qu

{"title":"Antibacterial hydrogel filters via in situ growth of Ag-doped ZIF-8 on cellulose nanofibers: A novel strategy for biofouling control in water treatment.","authors":"Jinrong He, Limin Peng, Zhipeng Zhang, Yuzhang Wu, Wei Qu","doi":"10.1016/j.carbpol.2025.124174","DOIUrl":"10.1016/j.carbpol.2025.124174","url":null,"abstract":"Developing a green and highly efficient antibacterial filter for water disinfection was considered crucial to public health. Here, we first synthesized necklace-like Ag/Z@CNF nanofibers by in situ growth of ZIF-8 on T-CNF, followed by loading silver nanoparticles in the Z@CNF via ion exchange and chemical reduction. Finally, an anti-biofouling hydrogel filter was developed using an injection-driven filtration system that combining the Ag/Z@CNF and CNF hydrogel films. This unique necklace-like structure of Ag/Z@CNF enhanced interfacial bonding, reduced ZIF-8 aggregation and defects, and ensured long-term stability. The cellulose-based nanofiber substrate also provided excellent biocompatibility and sustainability, forming a three-dimensional porous hydrogel network. The antibacterial properties of the hydrogel film were evaluated using inhibition zone assays and Live/Dead fluorescence staining. The Ag/Z@CNF hydrogel film demonstrated higher antibacterial rates, with rates of 98.2 % against E. coli and 99.1 % against S. aureus, compared to the 79.95 % and 83.08 % antibacterial rates of the Z@CNF hydrogel film, respectively. Notably, the ·OH signal intensity generated by Ag/Z@CNF was 2.70-fold greater than that observed for Z@CNF. In dynamic antibiofouling experiments, the Ag/Z@CNF hydrogel film showed only a 14 % decline in flux, effectively inhibiting biofouling and leading to the formation of a loose and thin biofilm. The Ag/Z@CNF hydrogel films exhibited multiple synergistic antibacterial mechanisms, combining sustained Zn2+ and Ag+ release with visible-light-induced reactive oxygen species generation. This work has great potential for large-scale antibacterial filtration membranes, providing an efficient, sustainable, and cost-effective approach to water disinfection.","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"368 Pt 2","pages":"124174"},"PeriodicalIF":12.5,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145063062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0