Carbohydrate Polymers最新文献

Self-assembled plant-based biomass materials for enhancing sustainable agriculture and food security 促进可持续农业和粮食安全的自组装植物基生物质材料

IF 10.7 1区化学

Carbohydrate Polymers Pub Date : 2025-05-28 DOI: 10.1016/j.carbpol.2025.123814

Mingyao Wang , Xiao Yang , Tingting Gou , Tao Huang , Xiaoling Wang , Qichang Yang , Junling Guo

{"title":"Self-assembled plant-based biomass materials for enhancing sustainable agriculture and food security","authors":"Mingyao Wang , Xiao Yang , Tingting Gou , Tao Huang , Xiaoling Wang , Qichang Yang , Junling Guo","doi":"10.1016/j.carbpol.2025.123814","DOIUrl":"10.1016/j.carbpol.2025.123814","url":null,"abstract":"<div><div>Agrochemicals are widely utilized to improve crop yields and will continue to be used to secure the global demand for food when facing the growing global population (2050, 10 billion). However, a large amount of agrochemicals, especially nanopesticides and nanofertilizers, are lost to the environment, resulting in a significant effect on the ecosystem and food safety problems. Plant-based biomass materials, as the most abundant renewable resource, have attracted considerable interest in developing various functional nanoagrochemicals due to their eco-friendly and biocompatible attributes. Moreover, these materials are often used to tailor functional nanoagrochemicals with targeted and controlled release of active ingredients abilities from self-assembly due to their unique chemical and physical properties. In this review, the main non-covalent interactions of cellulose, lignin, and polyphenols were presented, which facilitate the design of functional nanoagrochemicals. Additionally, the new opportunities for the application of plant-based nanoagrochemicals to improve the use efficiency by achieving targeting or stimuli-responsiveness capabilities were emphasized. Furthermore, the applications of plant-based nanoagrochemicals in agricultural practices are reviewed. This review can offer a valuable overview for deepening the understanding of the design and development of plant-based nanoagrochemicals for the efficient utilization of agrochemicals.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"366 ","pages":"Article 123814"},"PeriodicalIF":10.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144166216","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 nanocarriers: A promising approach for glioblastoma therapy 壳聚糖纳米载体：一种治疗胶质母细胞瘤的有前途的方法

IF 10.7 1区化学

Carbohydrate Polymers Pub Date : 2025-05-28 DOI: 10.1016/j.carbpol.2025.123823

Poulami Sarkar , Arindam Manna , Soumyadip Bera , Olivia Sen , Priya Das , Gouranga Nandi , Sreejan Manna

{"title":"Chitosan nanocarriers: A promising approach for glioblastoma therapy","authors":"Poulami Sarkar , Arindam Manna , Soumyadip Bera , Olivia Sen , Priya Das , Gouranga Nandi , Sreejan Manna","doi":"10.1016/j.carbpol.2025.123823","DOIUrl":"10.1016/j.carbpol.2025.123823","url":null,"abstract":"<div><div>Glioblastoma is a rapidly growing form of brain tumour originating from the supportive tissues present in the brain or spinal cord. The conventional therapeutic options include the use of alkylating agents, radiation and surgical procedures, that exhibits numerous limitations. The considerably less survival rate, very high incidence of recurrence and lack of effective therapeutic options has made the disease as the most lethal brain cancer. Being widely investigated, nanocarriers assure efficacy in brain targeting. Nano-based systems also hold the edge of higher encapsulation efficiency, ability to encapsulate anticancer therapeutics and effective blood brain barrier (BBB) penetration ability has been proven as one of the most successful means of delivering therapeutic agents in brain interstitial. The extreme biocompatible and biodegradable features of chitosan (CS) have been advantageous in combination with its easy fabrication and modifiable physicochemical behaviour. CS has been extensively investigated in the synthesis of nano-systems for brain targeting of drugs. The mucoadhesive behaviour of CS, cationic nature, and its ability to conjugate with various ligands helps in effective targeting of glioblastoma. This review specifically focuses on the fabrication of various CS-based nanocarriers for glioblastoma therapy, alongside describing its suitability and reflecting the recent research outcomes in glioblastoma therapy.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"365 ","pages":"Article 123823"},"PeriodicalIF":10.7,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144170364","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

Preparation of highly charged zwitterionic nanochitin for stabilizing Pickering emulsions 稳定皮克林乳状液的高电荷两性离子纳米几丁质的制备

IF 10.7 1区化学

Carbohydrate Polymers Pub Date : 2025-05-27 DOI: 10.1016/j.carbpol.2025.123818

Qiannuo Li , Lei Zhang , Xue Gao , Zhongshuai Gao , Mei Cui , Renliang Huang , Rongxin Su

{"title":"Preparation of highly charged zwitterionic nanochitin for stabilizing Pickering emulsions","authors":"Qiannuo Li , Lei Zhang , Xue Gao , Zhongshuai Gao , Mei Cui , Renliang Huang , Rongxin Su","doi":"10.1016/j.carbpol.2025.123818","DOIUrl":"10.1016/j.carbpol.2025.123818","url":null,"abstract":"<div><div>Zwitterionically charged nanochitin has broad applications in diverse environments. The current process mainly involves partial deacetylation, which is followed by carboxylation via TEMPO-mediated oxidation. Herein, we develop an eco-friendly strategy that integrates phosphorylation with partial deacetylation to prepare highly charged zwitterionic nanochitin (P-De-NCh). The chitin fibers were soaked in an aqueous solution containing NH<sub>4</sub>H<sub>2</sub>PO<sub>4</sub> and urea, followed by heat curing at 150 °C for 30 min, the phosphorylated chitin with a degree of substitution of 0.19 was obtained, and the yield of phosphorylated nanochitin (P-NCh) was 80.2 %. After deacetylation in NaOH solution and mechanical fibrillation, the resulting zwitterionic nanochitin contained both anionic (-PO<sub>3</sub><sup>2−</sup>) and cationic (-NH<sub>3</sub><sup>+</sup>) groups with a degree of phosphorylation of 0.14 and a degree of deacetylation of 0.26, and displayed a high crystallinity of 77.5 %. Additionally, the prepared P-De-NCh demonstrated high antibacterial activity, thermal stability, and colloidal stability over a wide pH range. Furthermore, the potential of this sustainable P-De-NCh as an emulsifier for preparing Pickering emulsions with good stability in both acidic and alkaline environments was presented. Therefore, this simple and eco-friendly process is expected to hold significant potential in the large-scale production of zwitterionic nanochitin.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"365 ","pages":"Article 123818"},"PeriodicalIF":10.7,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144170362","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

Harnessing pectin nanoparticles for targeted drug delivery in cancer therapy 利用果胶纳米颗粒靶向药物递送癌症治疗

IF 10.7 1区化学

Carbohydrate Polymers Pub Date : 2025-05-26 DOI: 10.1016/j.carbpol.2025.123815

Bhupendra G. Prajapati , Priyanka Uniyal , Sonam M. Gandhi , Summya Rashid , Shital R. Patel , Devesh U. Kapoor

{"title":"Harnessing pectin nanoparticles for targeted drug delivery in cancer therapy","authors":"Bhupendra G. Prajapati , Priyanka Uniyal , Sonam M. Gandhi , Summya Rashid , Shital R. Patel , Devesh U. Kapoor","doi":"10.1016/j.carbpol.2025.123815","DOIUrl":"10.1016/j.carbpol.2025.123815","url":null,"abstract":"<div><div>Cancer remains a leading global health challenge, driving the search for effective and targeted therapies. This review explores the potential of pectin-based nanoparticles in cancer treatment, emphasizing their role as a promising biomaterial in nanoparticle formulation. The review begins by discussing the structure, properties, and extraction methods of pectin, highlighting its biocompatibility and biodegradability, which are crucial for novel drug delivery systems. The review further delves into the manufacturing techniques of pectin-based NPs and examines various targeting strategies, including passive mechanisms like the surged permeability and retention effect, and active approaches such as ligand-mediated targeting. Strategies for overcoming biological barriers are also discussed. The review also entails the application of pectin NPs to treat different type of cancers, including breast, lung, brain, liver, and pancreatic cancers, underscoring their potential to enhance the therapeutic outcomes and minimise adverse effects. This review provides insights into the advancements and future directions of pectin-based NPs in oncology.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"364 ","pages":"Article 123815"},"PeriodicalIF":10.7,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147956","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

Enzymatic resistance of starch-polyphenol inclusion complexes: polyphenol inhibition and structural changes during in vitro digestion 淀粉-多酚包合物的酶抗性：体外消化过程中多酚的抑制和结构变化

IF 10.7 1区化学

Carbohydrate Polymers Pub Date : 2025-05-25 DOI: 10.1016/j.carbpol.2025.123811

Haoran Fan , Lin Sun , Xu Yao , Yangyang Wen , Xuesong Xiang , Hongyan Li , Jing Wang , Baoguo Sun

{"title":"Enzymatic resistance of starch-polyphenol inclusion complexes: polyphenol inhibition and structural changes during in vitro digestion","authors":"Haoran Fan , Lin Sun , Xu Yao , Yangyang Wen , Xuesong Xiang , Hongyan Li , Jing Wang , Baoguo Sun","doi":"10.1016/j.carbpol.2025.123811","DOIUrl":"10.1016/j.carbpol.2025.123811","url":null,"abstract":"<div><div>High amylose corn starch (HACS) forms inclusion complexes with polyphenols, resulting in a significant reduction in starch digestibility. The digestibility of the inclusion complexes is influenced by the inhibitory effects of polyphenols on amylases and/or the structural characteristics of the inclusion complex. Herein, nine distinct polyphenols complexed with HACS through high-temperature water method. Four representative inclusion complexes—HACS-caffeic acid inclusion complex (HACS-CA), HACS-dihydroxybenzoic acid inclusion complex (HACS-DA), HACS-soy isoflavone inclusion complex (HACS-SI), and HACS-naringenin inclusion complex (HACS-NG)—were selected for comparative analysis of the <em>in vitro</em> digestion processes. The results revealed that the HACS-polyphenol inclusion complexes inhibited α-amylase activity by gradually releasing polyphenols during digestion. The release rates of polyphenols followed the sequence of HACS-DA < HACS-SI < HACS-CA ≈ HACS-NG, and the inhibition of α-amylase occurred in the opposite sequence. Structural analyses showed an increase in the proportion of super-long amylopectin chains and the degree of order of digested HACS-DA and HACS-SI. The enzymatic resistance of the complexes was related to the super-long amylopectin chains recombined to form a short-range ordered structure. This study broadens the understanding of the enzymatic resistance of starch-polyphenol complexes, offering valuable insights into their potential applications in developing functional foods with health benefits.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"365 ","pages":"Article 123811"},"PeriodicalIF":10.7,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144170363","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 highly sulfated α-1,4-linked Galactoglucan of Antrodia cinnamomea with anti-inflammatory and anti-Cancer activities 一种具有抗炎和抗癌活性的高硫酸化α-1,4-连接肉桂的半乳糖葡聚糖

IF 10.7 1区化学

Carbohydrate Polymers Pub Date : 2025-05-24 DOI: 10.1016/j.carbpol.2025.123810

Ching-Yi Lu , Wei-Lun Qiu , Chi-Hsein Chao , Mei-Kuang Lu , Chia-Chuan Chang

{"title":"A highly sulfated α-1,4-linked Galactoglucan of Antrodia cinnamomea with anti-inflammatory and anti-Cancer activities","authors":"Ching-Yi Lu , Wei-Lun Qiu , Chi-Hsein Chao , Mei-Kuang Lu , Chia-Chuan Chang","doi":"10.1016/j.carbpol.2025.123810","DOIUrl":"10.1016/j.carbpol.2025.123810","url":null,"abstract":"<div><div>Sulfate polysaccharides (SPS) are polysaccharides with highly anionic properties due to of the binding of negatively charged sulfate groups to the central sugar backbone. This study aims to structurally elucidate and functionally evaluate a natural SPS purified from fraction 2 of SPS of 50 mM ammonium sulfate feeding of <em>A. cinnamomea</em>, noted as N50 F2. N50 F2 exhibited a high sulfate content of 3.89 mmol/g demonstrated excellent anti-cancer activity. Its anti-inflammatory effect is mediated by down-regulating AKT phosphorylation and reducing TGFRII expression in LPS-induced macrophage cells. The anti-cancer activity of N50 F2 is achieved through the down-regulation of the phosphorylation of AKT/ERK/EGFR/FAK and the inhibition of slug, TGFRI, and TGFRII's expression. N50 F2 also activated apoptotic related molecules of CHOP, and cleavage PARP, caspase 3 in lung cancer cells. Structural delineation demonstrated that N50 F2 was a sulfated <em>α-</em>1,4-linked galactoglucan, with a glucosyl branch on the 3-<em>O</em> position of one skeleton moiety and a galactosyl on the 6-<em>O</em> position of another, with sulfate substitutions on all the hydroxy positions. This study offers a reliable production method for SPS and highlights the potential of SPS for pharmaceutical applications.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"364 ","pages":"Article 123810"},"PeriodicalIF":10.7,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147957","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

Development of hydroxyapatite-based Carboxymethylcellulose-Al(III) aerogel beads for efficient and selective defluorination from brick tea infusions 羟基磷灰石基羧甲基纤维素铝（III）气凝胶珠的研制，用于砖茶冲剂的高效和选择性除氟

IF 10.7 1区化学

Carbohydrate Polymers Pub Date : 2025-05-24 DOI: 10.1016/j.carbpol.2025.123802

Wenyue Yu , Huan Guo , Ya Liu , Yangyu Zhou , Yue Xiao , Jinrong Bai , Yanping Wu , Kai Zhong , Yina Huang , Hong Gao

{"title":"Development of hydroxyapatite-based Carboxymethylcellulose-Al(III) aerogel beads for efficient and selective defluorination from brick tea infusions","authors":"Wenyue Yu , Huan Guo , Ya Liu , Yangyu Zhou , Yue Xiao , Jinrong Bai , Yanping Wu , Kai Zhong , Yina Huang , Hong Gao","doi":"10.1016/j.carbpol.2025.123802","DOIUrl":"10.1016/j.carbpol.2025.123802","url":null,"abstract":"<div><div>High fluoride intake from tea consumption poses significant health risks, necessitating the development of defluorination adsorbents in the food industry. Defluorination from tea is particularly challenging due to the requirements for high adsorption efficiency, preservation of sensory quality, and high recovery rates of the adsorbents. In this study, we introduced an innovative aerogel bead, CMC-Al/HAP, which integrates hydroxyapatite (HAP) into a carboxymethylcellulose (CMC) sphere crosslinked with aluminum chloride through a green and straightforward process. Our results demonstrated that CMC-Al/HAP achieved a remarkable fluoride adsorption capacity of 23.51 ± 0.46 mg/g. Subsequently, we investigated the impact of various adsorption parameters, kinetics, isotherms, coexisting anions, and recycling potential on the adsorption behavior of the beads. The adsorption kinetics followed the pseudo-second-order and dubinin-radushkevich models, while the Langmuir isotherm provided a good fit for the adsorption data. Characterization studies conducted before and after adsorption indicated that the adsorption mechanism mainly involved ion exchange and electrostatic interactions. Notably, CMC-Al/HAP effectively reduced fluoride levels in brick tea infusions without affecting quality such as tea color, catechins, and aroma. These findings underscore the potential of CMC-Al/HAP aerogel beads as a practical defluorination solution, providing valuable insights into alternative methods for defluorination in the tea industry.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"364 ","pages":"Article 123802"},"PeriodicalIF":10.7,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144170775","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

The regulatory effects of butyrylated starch on gut microbiota and metabolites during in vitro fermentation: advantages over exogenous butyrate and resistant starch 丁酸淀粉对体外发酵过程中肠道菌群和代谢物的调节作用：优于外源丁酸和抗性淀粉

IF 10.7 1区化学

Carbohydrate Polymers Pub Date : 2025-05-23 DOI: 10.1016/j.carbpol.2025.123791

Yi Zhang , Lingjin Li , Yahui Gao , Li Cheng , Yan Hong , Zhengbiao Gu

{"title":"The regulatory effects of butyrylated starch on gut microbiota and metabolites during in vitro fermentation: advantages over exogenous butyrate and resistant starch","authors":"Yi Zhang , Lingjin Li , Yahui Gao , Li Cheng , Yan Hong , Zhengbiao Gu","doi":"10.1016/j.carbpol.2025.123791","DOIUrl":"10.1016/j.carbpol.2025.123791","url":null,"abstract":"<div><div>Butyrylated normal maize starch (BNMS) is a butyrate-carrying and resistant starch (RS). BNMS is fermented by the gut microbiota to produce large amounts of short-chain fatty acids (SCFAs), particularly butyrate, which are beneficial for intestinal health. However, the effects of BNMS on gut microbiota and metabolites, and its advantages over exogenous butyrate and RS, are unclear. The specific effects of BNMS were investigated <em>via in vitro</em> fermentation using sodium butyrate (SB) and high-amylose maize starch (HAMS) as controls. Compared to SB and HAMS, BNMS enhanced gas production, lowered pH, and produced numerous SCFAs. Additionally, BNMS effectively stimulated beneficial bacteria proliferation, including <em>Coprococcus</em>, <em>Faecalibacterium</em>, <em>Megamonas</em>, <em>Collinsella</em>, <em>Blautia</em>, and <em>Bifidobacterium</em>, and suppressed harmful bacteria proliferation, including <em>Escherichia-shigella</em> and <em>Desulfovibrio</em>, resulting in a healthier colony structure. Similarly, BNMS modulated many amino acids, neurotransmitters, vitamins, sphingolipids, carbohydrates, hormones levels, and multiple metabolic pathways, including arginine and proline metabolism, tryptophan metabolism, synaptic vesicle cycle, sphingolipid metabolism, riboflavin metabolism, amino sugar and nucleotide sugar metabolism, and steroid hormone biosynthesis. Overall, BNMS positively affected gut microbiota and metabolites, exhibiting advantages over exogenous butyrate and RS. These results provide some theoretical basis for the BNMS development and application as a functional food.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"364 ","pages":"Article 123791"},"PeriodicalIF":10.7,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134936","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

Is it possible to completely dry cellulose? 有可能使纤维素完全干燥吗？

IF 10.7 1区化学

Carbohydrate Polymers Pub Date : 2025-05-23 DOI: 10.1016/j.carbpol.2025.123803

Aleksandar Y. Mehandzhiyski , Maria-Ximena Ruiz-Caldas , Patrick Heasman , Varvara Apostolopoulou-Kalkavoura , Lennart Bergström , Igor Zozoulenko

{"title":"Is it possible to completely dry cellulose?","authors":"Aleksandar Y. Mehandzhiyski , Maria-Ximena Ruiz-Caldas , Patrick Heasman , Varvara Apostolopoulou-Kalkavoura , Lennart Bergström , Igor Zozoulenko","doi":"10.1016/j.carbpol.2025.123803","DOIUrl":"10.1016/j.carbpol.2025.123803","url":null,"abstract":"<div><div>Cellulose nanocrystals (CNCs) are widely used in advanced materials due to their unique mechanical and physicochemical properties. However, their interactions with water, particularly in the context of drying, remain poorly understood. The presence of bound water in CNC poses challenges for processing, storage, and applications sensitive to moisture. In this study, we combine molecular simulations and experimental drying investigations to assess the extent of water retention in both native and TEMPO-CNC under different thermodynamic conditions. Our results demonstrate that while native CNCs can be fully dried under low pressure (≤1 mbar) and elevated temperature (110 °C), TEMPO-CNC retain a significant amount of water (1–7 wt%) due to electrostatic interactions between water molecules and the charged surface carboxylic groups and the sodium counter-ions. These findings provide fundamental insights into the drying behavior of functionalized nanocellulose and highlight the importance of considering residual bound water in applications requiring moisture-sensitive performance.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"365 ","pages":"Article 123803"},"PeriodicalIF":10.7,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144170361","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

Self-healing waterborne polyurethane nanocomposites with high strength and toughness based on ureidopyrimidinone-modified cellulose nanocrystals 基于脲嘧啶修饰纤维素纳米晶体的高强度、高韧性自修复水性聚氨酯纳米复合材料

IF 10.7 1区化学

Carbohydrate Polymers Pub Date : 2025-05-23 DOI: 10.1016/j.carbpol.2025.123806

Naishuo Yan , Xiuzhong Zhu , Li Tian , Jinbang Han , Jinjie Zang , Haitao Zhang

{"title":"Self-healing waterborne polyurethane nanocomposites with high strength and toughness based on ureidopyrimidinone-modified cellulose nanocrystals","authors":"Naishuo Yan , Xiuzhong Zhu , Li Tian , Jinbang Han , Jinjie Zang , Haitao Zhang","doi":"10.1016/j.carbpol.2025.123806","DOIUrl":"10.1016/j.carbpol.2025.123806","url":null,"abstract":"<div><div>Cellulose nanocrystals (CNCs), as a biomass resource, are mainly used as fillers to enhance the mechanical strength of materials. However, CNCs are prone to aggregation in an aqueous matrix due to their high hydroxyl group content. Nevertheless, preparing high-performance synthetic polymers or biopolymers to reinforce polymer nanocomposites is still a significant challenge. Herein, a strategy was developed to prepare high-performance waterborne polyurethane (WPU) nanocomposites via synergistic interaction of multiple hydrogen-bonded assemblies and disulfide bonding. First, 2-ureido-4-[1H]-pyrimidinone (UPy) motifs were grafted onto CNC to obtain UPy-CNC and alleviate the aggregation problem. Then, WPU nanocomposites containing aromatic and aliphatic disulfide bonds were reinforced by UPy-CNC. The tensile strength and toughness of the composites were tested. The tensile strength of the material reached 48.07 ± 2.45 MPa, and the toughness was as high as 142.72 ± 2.7 MJ m<sup>−3</sup>. Thus, these nanocomposites exhibited exceptional tensile strength as well as good elongation at break and self-healing properties. This simple and effective strategy to prepare WPU nanocomposites may have excellent application value in waterborne coatings.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"365 ","pages":"Article 123806"},"PeriodicalIF":10.7,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144170360","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