Carbohydrate Polymers最新文献_第6页

Multicomponent molecular interactions governing 3D printing of starch-based foods: Mechanistic insights, structural characteristics, and nutritional implications 控制淀粉基食品3D打印的多组分分子相互作用：机械见解，结构特征和营养意义

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-09-29 DOI: 10.1016/j.carbpol.2025.124486

Hui Wen, Shiqi Tang, Xingwei Xiang, Bin Zheng, Bo Zheng

{"title":"Multicomponent molecular interactions governing 3D printing of starch-based foods: Mechanistic insights, structural characteristics, and nutritional implications","authors":"Hui Wen, Shiqi Tang, Xingwei Xiang, Bin Zheng, Bo Zheng","doi":"10.1016/j.carbpol.2025.124486","DOIUrl":"10.1016/j.carbpol.2025.124486","url":null,"abstract":"<div><div>Amid the rapid advancement of food 3D printing (3DP) technologies, starch become a widely used matrix due to its excellent processability, structural versatility, and nutritional modulation potential. However, most existing reviews have primarily focused on processing parameters and rheological properties, while systematic discussions on the multicomponent interactions and their molecular mechanisms during printing remain scarce. This review centers on starch-based systems, briefly introducing how diverse molecular forces, including hydrogen bonding, hydrophobic interactions, electrostatic forces, and covalent bonds between starch, proteins, lipids, and polyphenols, drive the formation of novel composite structural domains during 3DP. Interestingly, the formation of these new structural domains induced by 3DP plays a crucial role in modulating key printing properties of starch systems at multiple scales such as rheology, shape fidelity and interlayer adhesion. Furthermore, the review systematically elucidates the effects of these interactions on gel setting kinetics, emulsion stability, and complex network formation, and comprehensively summarizes their intrinsic mechanisms in enhancing enzymatic resistance, promoting resistant starch (RS) formation, and modulating glycemic response and intestinal probiotic effects. Overall, this review highlights the value of 3DP by bridging the molecular-level interactions between starch and multicomponent systems with the macroscopic nutritional functionality of composite structures through innovative cross-scale insights.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"371 ","pages":"Article 124486"},"PeriodicalIF":12.5,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145195838","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

Lemon gum blankets esophageal mucosa and promotes therapeutic effects in experimental models of gastroesophageal reflux disease: Grasps for prevention and treatment 在胃食管反流病实验模型中，柠檬胶包覆食管黏膜，促进其治疗作用：掌握预防和治疗

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-09-29 DOI: 10.1016/j.carbpol.2025.124485

Luiz F.S.L. Teixeira , Katriane C. Silva , Fábio O.S. Ribeiro , Amanda P. da Silva , Renata R. Nascimento , Leonardo P. Souza , Álvaro X. Franco , Joslaine Jacumazo , Lucas de J. Lima , Alyne R. de Araujo-Nobre , Mariana L. Vale , Marcellus H.L.P. Souza , Antonio Palumbo-Junior , Rilton A. Freitas , Jand V.R. Medeiros , Lucimara M.C. Cordeiro , Durcilene A. Silva , Lucas A.D. Nicolau

{"title":"Lemon gum blankets esophageal mucosa and promotes therapeutic effects in experimental models of gastroesophageal reflux disease: Grasps for prevention and treatment","authors":"Luiz F.S.L. Teixeira , Katriane C. Silva , Fábio O.S. Ribeiro , Amanda P. da Silva , Renata R. Nascimento , Leonardo P. Souza , Álvaro X. Franco , Joslaine Jacumazo , Lucas de J. Lima , Alyne R. de Araujo-Nobre , Mariana L. Vale , Marcellus H.L.P. Souza , Antonio Palumbo-Junior , Rilton A. Freitas , Jand V.R. Medeiros , Lucimara M.C. Cordeiro , Durcilene A. Silva , Lucas A.D. Nicolau","doi":"10.1016/j.carbpol.2025.124485","DOIUrl":"10.1016/j.carbpol.2025.124485","url":null,"abstract":"<div><div>This study evaluated the therapeutic potential of lemon gum (LG), an arabinogalactan biopolymer from <em>Citrus × latifolia</em> exudate, in experimental models of gastroesophageal reflux disease (GERD). Structural analyses confirmed LG as a complex, highly branched acidic arabinogalactan. In reflux esophagitis in rats, LG improved esophageal morphology, reduced leukocyte infiltration (polymorphonuclear and mast cells), and decreased dilated intercellular spaces. Biochemical analysis in murine esophageal samples revealed that LG lowered inflammatory and oxidative stress markers. Histology showed reduced erosion and better tissue preservation. LG-mucin binding was evidenced in vitro using complementary biophysical techniques, namely quartz crystal microbalance with dissipation monitoring (QCM-D) and atomic force microscopy (AFM); and surface wettability was assessed through contact angle measurements. In human esophageal biopsies, immunofluorescence analysis revealed the mucoadhesive potential of LG as a protective surface coating. In cultured human esophageal epithelial cells, LG exhibited no cytotoxicity and promoted wound healing, as demonstrated by a scratch assay. Overall, LG contributes to esophageal protection, attenuates features of reflux esophagitis, interacts with mucins, and supports epithelial repair, suggesting its potential as a functional biomaterial for the management of gastroesophageal reflux-related conditions.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"370 ","pages":"Article 124485"},"PeriodicalIF":12.5,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217693","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

Dual-layer cellulose aerogel with integrated zirconium carbide-graphene oxide photothermal system for sustainable solar-driven seawater treatment 双层纤维素气凝胶，集成碳化锆-氧化石墨烯光热系统，用于可持续太阳能驱动的海水处理

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-09-29 DOI: 10.1016/j.carbpol.2025.124481

Ming Zhu , Siyue Yuan , Rui Zhang , Pengtao Liu

{"title":"Dual-layer cellulose aerogel with integrated zirconium carbide-graphene oxide photothermal system for sustainable solar-driven seawater treatment","authors":"Ming Zhu , Siyue Yuan , Rui Zhang , Pengtao Liu","doi":"10.1016/j.carbpol.2025.124481","DOIUrl":"10.1016/j.carbpol.2025.124481","url":null,"abstract":"<div><div>Cellulose aerogels combine ultralight weight, high porosity, biodegradability and robust mechanical behavior. However, single component materials such as purely hydrophilic, purely hydrophobic or purely photothermal systems cannot deliver rapid water transport, broad-spectrum solar absorption, effective salt rejection and long-term structural stability at the same time. In this study, we design and fabricate a Janus bilayer aerogel in which the hydrophilic bottom layer consists of cellulose nanofibers (CNFs) and polyvinyl alcohol (PVA) to provide continuous seawater delivery and thermal insulation, while the hydrophobic top layer embeds graphene oxide (GO) together with zirconium carbide (ZrC) to achieve efficient solar absorption from 250 to 2500 nm and rapid heat localization. Optimizing the mass ratio of ZrC to GO at 2 to 1 yields a water evaporation rate of 2.00 kg m<sup>−2</sup> h<sup>−1</sup> and a solar to vapor conversion efficiency of 94 % under one-sun illumination. The material also resists salt crystallization and regains its mechanical integrity after repeated compression in aqueous environments. This scalable, surfactant-free approach offers a sustainable and cost-effective platform for high-performance solar desalination.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"370 ","pages":"Article 124481"},"PeriodicalIF":12.5,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217694","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

Recent advances in sustainable cellulose-based supercapacitors: Diverse applications, crucial challenges, and coping strategies 可持续纤维素基超级电容器的最新进展：不同的应用、关键的挑战和应对策略

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-09-29 DOI: 10.1016/j.carbpol.2025.124478

Lina Shi , Tianyuan Xiao , Xinzhe Wang , Lingzhi Huang , Lu Wu , Haiqiang Shi

{"title":"Recent advances in sustainable cellulose-based supercapacitors: Diverse applications, crucial challenges, and coping strategies","authors":"Lina Shi , Tianyuan Xiao , Xinzhe Wang , Lingzhi Huang , Lu Wu , Haiqiang Shi","doi":"10.1016/j.carbpol.2025.124478","DOIUrl":"10.1016/j.carbpol.2025.124478","url":null,"abstract":"<div><div>The rapid increase in global demand for energy storage devices has exacerbated environmental pollution, making the development of green, renewable materials imperative. Cellulose-based materials, with their ideal renewable and degradable properties, show notable potential and play a critical role in the sustainable development of energy storage devices, particularly supercapacitors (SCs). This review analyzes recent research progress and development trends related to cellulose and its derivatives in the field of SCs. First, the structural features, application advantages, and main preparation processes of cellulose are elaborated upon in detail. Subsequently, the current application status of cellulose-based materials in different components of SCs, including electrodes, binders, separators, quasi-solid electrolytes, and substrate materials, is systematically summarized in terms of their preparation techniques and raw material types, and the important role of cellulose in the future eco-friendly development of SCs is discussed in depth. Finally, the development trends of cellulose-based SCs and the obstacles they face are summarily discussed. This review aims to provide meaningful insights and references to support the sustainable development of SCs.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"371 ","pages":"Article 124478"},"PeriodicalIF":12.5,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145195839","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

Chitosan production methods influence receptor-mediated immune responses but not target-mediated antimicrobial bioactivities 壳聚糖的生产方法影响受体介导的免疫反应，但不影响靶向介导的抗菌生物活性

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-09-29 DOI: 10.1016/j.carbpol.2025.124487

Margareta J. Hellmann , Katharina Eickelpasch , Alexandra Großdorf , Pedro Barreto , Markus Schwarzländer , Christian Gorzelanny , Bruno M. Moerschbacher , Carolin Richter

{"title":"Chitosan production methods influence receptor-mediated immune responses but not target-mediated antimicrobial bioactivities","authors":"Margareta J. Hellmann , Katharina Eickelpasch , Alexandra Großdorf , Pedro Barreto , Markus Schwarzländer , Christian Gorzelanny , Bruno M. Moerschbacher , Carolin Richter","doi":"10.1016/j.carbpol.2025.124487","DOIUrl":"10.1016/j.carbpol.2025.124487","url":null,"abstract":"<div><div>Chitosans are promising polysaccharides for the growing bioeconomy, but their numerous bioactivities depend on their structural parameters. Whereas researchers are currently unraveling the influence of the degree of polymerization and the fraction and pattern of acetylation on the properties and activities of chitosans, the role of their production method has received little attention so far. In this study, we show that polymers produced by heterogeneous deacetylation (HTDA) trigger significantly higher immune responses in plants and human cells compared to chemically <em>N</em>-acetylated (CNA) chitosans. This may be due to a higher abundance of acetylated stretches in combination with a more regular pattern in the HTDA samples as opposed to more uniform CNA polymers with random acetylation patterns. In contrast to the receptor-mediated immune responses, antimicrobial bioactivities, which are rather target- than receptor-mediated, were not affected by the production method. The results are of great interest for chitosan research and applications in fields such as agriculture or biomedicine, where scientists should be imperatively aware of the differences between HTDA and CNA chitosans. For instance, the eliciting activities of HTDA chitosans in plants might be preferable for crop protection, while the low immune response to CNA chitosans could be desirable for biomedical applications.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"371 ","pages":"Article 124487"},"PeriodicalIF":12.5,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263764","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

Capsular polysaccharide from Psychrobacter sp. TAE2020: An unusual amino sugar-enriched macromolecule with anti-biofilm and emulsification activities 来自Psychrobacter sp. TAE2020的荚膜多糖：一种罕见的富含氨基糖的大分子，具有抗生物膜和乳化活性

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-09-29 DOI: 10.1016/j.carbpol.2025.124484

Raffaele D'Amico , Angela Casillo , Diana Olimpo , Noemi Gallucci , Caterina D'Angelo , Maria Luisa Tutino , Luigi Paduano , Ermenegilda Parrilli , Maria Michela Corsaro

{"title":"Capsular polysaccharide from Psychrobacter sp. TAE2020: An unusual amino sugar-enriched macromolecule with anti-biofilm and emulsification activities","authors":"Raffaele D'Amico , Angela Casillo , Diana Olimpo , Noemi Gallucci , Caterina D'Angelo , Maria Luisa Tutino , Luigi Paduano , Ermenegilda Parrilli , Maria Michela Corsaro","doi":"10.1016/j.carbpol.2025.124484","DOIUrl":"10.1016/j.carbpol.2025.124484","url":null,"abstract":"<div><div>Extracellular polysaccharides exhibit a broad range of biological activities, among which antibiofilm activity is of particular interest due to the growing clinical importance of biofilm-related infections. <em>Psychrobacter</em> sp. TAE2020, a marine Gram-negative bacterium, produces a molecular complex named CATASAN, endowed with antibiofilm properties. The aim of this study is the identification and structural characterisation of the polysaccharidic component of the CATASAN complex. Moreover, the interest was in finding the structural features possibly responsible for the anti-biofilm and emulsifying activities. Here, it has been demonstrated that the polysaccharide within the CATASAN complex corresponds to the capsular polysaccharide produced by <em>Psychrobacter</em> sp. TAE2020. The detailed primary structure of this CPS is here reported, which is composed of a tetrasaccharide repeating unit containing two residues of α-D-galactosamine, one residue of α-D-2,4-diacetamido-2,4,6-trideoxy-α-glucopyranose, and the unusual α-L-gulosamine. The physical properties of the CPS, such as its ability to adhere to hydrophobic surfaces and exhibit emulsifying activity, suggest that this polymer is a promising candidate for alternative anti-infective applications in clinical settings.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"370 ","pages":"Article 124484"},"PeriodicalIF":12.5,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217695","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

Alkali-induced “intrinsic redox” system for room-temperature synthesis of carboxylic acid-functionalized cellulose nanocrystals 碱诱导的“内在氧化还原”体系用于室温合成羧酸功能化纤维素纳米晶体

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-09-29 DOI: 10.1016/j.carbpol.2025.124264

Yunxiao Liu, Xinran Liu, Hongze Xu, Jie Wang, Xue Bai, Lijuan Zhou, Yongxin Duan, Jianming Zhang

{"title":"Alkali-induced “intrinsic redox” system for room-temperature synthesis of carboxylic acid-functionalized cellulose nanocrystals","authors":"Yunxiao Liu, Xinran Liu, Hongze Xu, Jie Wang, Xue Bai, Lijuan Zhou, Yongxin Duan, Jianming Zhang","doi":"10.1016/j.carbpol.2025.124264","DOIUrl":"10.1016/j.carbpol.2025.124264","url":null,"abstract":"<div><div>The synthesis of carboxylic acid-functionalized cellulose nanocrystals (CNCs) is frequently constrained by high energy consumption, excessive oxidant usage, and stringent reaction conditions. In this work, we propose an “intrinsic redox” system utilizing alkali-enhanced electron-donating capacity of cellulose to overcome these challenges. By deprotonating its hydroxy groups (pKa ~13), cellulose's electron-donating ability is enhanced, allowing it to serve as both the raw material and a reducing agent for the synthesis of CNCs. Mechanistic studies indicate that alkali-induced deprotonation significantly enhances the electron density of hydroxy groups on the surface of cellulose, resulting in a 579 % increase in the nucleophilicity index. This system facilitates CNC extraction at room temperature within 30 min, with a low oxidant-to-cellulose mass ratio (0.6 g/g) and a high yield of 73.05 ± 1.06 wt%. The resulting CNCs exhibit uniform dimensions (206.2 ± 38.5 nm in length, 11.0 ± 2.1 nm in diameter), high crystallinity (72.2 %), and colloidal stability (ζ = −38.8 mV). With 89.5 % closed-loop reagent recovery and value-added byproduct utilization, our methodology offers an industrially scalable platform for green production of nanocellulose.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"370 ","pages":"Article 124264"},"PeriodicalIF":12.5,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217696","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 novel spherical-branching bacterial cellulose biomaterial synthesized via glutathione guidance 通过谷胱甘肽引导合成的新型球形分枝细菌纤维素生物材料

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-09-28 DOI: 10.1016/j.carbpol.2025.124482

Fei Xu, Yilin Li, Xiaoxue Zhang, Wenhui Xue, Ying Xu, Xun Sun

{"title":"A novel spherical-branching bacterial cellulose biomaterial synthesized via glutathione guidance","authors":"Fei Xu, Yilin Li, Xiaoxue Zhang, Wenhui Xue, Ying Xu, Xun Sun","doi":"10.1016/j.carbpol.2025.124482","DOIUrl":"10.1016/j.carbpol.2025.124482","url":null,"abstract":"<div><div>Bacterial cellulose (BC) has emerged as a promising biomaterial due to its unique nanostructure and exceptional physicochemical properties. In this study, a novel spherical-branching BC structure was successfully synthesized through glutathione (GSH)-mediated biosynthesis, and the length and number of the branches were shown to be modulated by GSH concentration. Appropriate GSH supplementation altered the microscopic morphology and crystal structure of BC, including a reduction in fiber diameter, a morphological transition from rod-like to spherical bacterial cells, and an increase in crystallinity. Through controlled experiments and transcriptomic analysis, the effects of GSH on both the culture environment and physiological state of <em>Komagataeibacter oboediens</em> FHNH23 were systematically investigated, further clarifying its role in BC synthesis and assembly. In this work, a controllable spherical-branching BC material was first developed, and the mechanism by which GSH regulated the BC structure was revealed, which provided innovative insights into the biosynthetic regulation of cellulose materials and offered a solid theoretical foundation and practical guidance for the tailored development of new materials in environmental, biomedical, and related fields.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"371 ","pages":"Article 124482"},"PeriodicalIF":12.5,"publicationDate":"2025-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263768","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

Polysaccharides in cryopreservation: multidimensional systematic review of extremophilic traits and the role of selective pressure in structure-function relationships 低温保存中的多糖：嗜极特性和选择压力在结构-功能关系中的作用的多维系统综述

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-09-28 DOI: 10.1016/j.carbpol.2025.124462

B.M. Guerreiro , J.C. Lima , J.C. Silva , F. Freitas

{"title":"Polysaccharides in cryopreservation: multidimensional systematic review of extremophilic traits and the role of selective pressure in structure-function relationships","authors":"B.M. Guerreiro , J.C. Lima , J.C. Silva , F. Freitas","doi":"10.1016/j.carbpol.2025.124462","DOIUrl":"10.1016/j.carbpol.2025.124462","url":null,"abstract":"<div><div>Cryopreservation of biological matter has accumulated apex biomedical interest for its potential in elongating the shelf-life of biological matter in a state of suspended animation. In Nature, extremophilic microorganisms have an outstanding ability of surviving in habitats where extreme cold, heat, salinity and acidity defy the established boundaries for life. Through Darwinian selective adaptation, they have developed biochemical defense strategies to counteract lethal stimuli. Here, we have compiled an extremophilic EPS structure-function relationship database (XPOL-DB) which aggregates reports on 145 extremophilic and mesophilic EPS, for a total of 128 biochemical and establishes the psychrophilic chemical profile for cold adaptation. Overall, psychrophilic EPS are highly-branched, polyanionic, elongated structures of increased flexibility and molecular weight (16 − 300 MDa), with predominant expression of polar monomers (<em>GalNAc</em>, <em>GalA</em>, <em>GlcNAc</em>, <em>GlcA</em>) – compared to the linear, rigid, neutral thermophilic EPS. The significant EPS similarity between psychrophiles and halophiles suggests ice growth and extreme salinity are rooted in a shared mechanism of physical membrane destabilization, for which similar chemical traits can dualistically imbue freeze tolerance and salt tolerance. Psychrophiles are exciting testbeds for the mapping of how extreme cold selects for cryobiological EPS adaptation; and can fuel reverse engineering efforts to design optimal bio-based, non-cytotoxic cryoprotectant polysaccharides.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"371 ","pages":"Article 124462"},"PeriodicalIF":12.5,"publicationDate":"2025-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218664","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

Chitosan/acetoacetylated poly(vinyl alcohol) nanofibers incorporating starch-derived carbon quantum dots with pH-responsive color change for wound dressings 含有淀粉衍生碳量子点的壳聚糖/乙酰乙酰化聚乙烯醇纳米纤维用于伤口敷料，具有ph响应性颜色变化

IF 12.5 1区化学

Carbohydrate Polymers Pub Date : 2025-09-27 DOI: 10.1016/j.carbpol.2025.124477

Ying Yao , Yu-I Hsu , Selina Sonntag , Alicia Fernández-Colino , Stefan Jockenhövel , Hiroshi Uyama

{"title":"Chitosan/acetoacetylated poly(vinyl alcohol) nanofibers incorporating starch-derived carbon quantum dots with pH-responsive color change for wound dressings","authors":"Ying Yao , Yu-I Hsu , Selina Sonntag , Alicia Fernández-Colino , Stefan Jockenhövel , Hiroshi Uyama","doi":"10.1016/j.carbpol.2025.124477","DOIUrl":"10.1016/j.carbpol.2025.124477","url":null,"abstract":"<div><div>Monitoring wound healing status through pH-responsive visual cues is essential for the effective management of chronic wounds. In this study, we developed biomass-derived carbon quantum dots (CQDs) using hydroxypropyl starch as the carbon source via a simple, eco-friendly synthesis strategy. Composite nanofibrous dressings were subsequently fabricated by incorporating CQDs with acetoacetylated polyvinyl alcohol (AAPVA) and chitosan (CS) through electrospinning. The resulting CQDs/CS/AAPVA nanofibers exhibited pronounced optical responsiveness within the pH range of 5–8, displaying visible color and fluorescence changes under visible and ultraviolet light. Furthermore, quantitative pH detection was achieved through RGB image analysis, demonstrating strong practical potential for wound monitoring. Owing to the synergistic effects between CQDs and CS, the composite nanofibers also exhibited excellent mechanical strength (Tensile stress = 10.0 ± 1.2 MPa), high swelling capacity (∼ 619.4 ± 26.8 %), structural stability, and biocompatibility, underscoring their significant promise for intelligent chronic wound management and remote monitoring.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"371 ","pages":"Article 124477"},"PeriodicalIF":12.5,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263772","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