Carbohydrate Polymers最新文献

{"title":"Recent progress in cellulose-based flexible thermoelectric devices: Materials, designs, mechanisms, and applications","authors":"Fei Wang ,&nbsp;Hongbin Li","doi":"10.1016/j.carbpol.2026.125003","DOIUrl":"10.1016/j.carbpol.2026.125003","url":null,"abstract":"<div><div>The rapid advancement of wearable electronics has underscored the importance of flexible thermoelectric (TE) devices as efficient platforms for continuous energy harvesting from body heat or environmental temperature gradients, due to their excellent adaptability to complex and dynamic surfaces. Among various candidates, cellulose-based materials derived from renewable biomass stand out for their outstanding processability, sustainability, and environmental compatibility, making them ideal scaffolds for flexible TE systems. Recent developments reveal that combining cellulose matrices with conductive polymers, carbon nanomaterials, and inorganic TE components can yield hybrid composites that simultaneously exhibit high thermoelectric performance and mechanical flexibility. Such innovations highlight the significant potential of cellulose materials for sustainable energy conversion and self-powered wearable applications. This review critically summarizes the latest progress in the design, fabrication, and integration of cellulose-based thermoelectric materials and devices, with a particular focus on processing strategies and performance enhancement mechanisms. Furthermore, it systematically discusses the existing challenges in material selection, thermal-electrical transport optimization, environmental degradability, and scalable manufacturing. Through this comprehensive analysis, the review aims to provide deep insights and practical guidance for developing next-generation, high-performance, and eco-friendly thermoelectric materials to advance sustainable energy harvesting technologies.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"379 ","pages":"Article 125003"},"PeriodicalIF":12.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146170941","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}

{"title":"A novel glycosaminoglycan from the brittlestar Trichaster palmiferus: structure and low-bleed anticoagulant–antithrombotic action","authors":"Qingxia Yuan ,&nbsp;Zidong Liu ,&nbsp;Yue Yao,&nbsp;Haiqiong Ma,&nbsp;Jiewen Fu,&nbsp;Xiang Shi,&nbsp;Jinying Huang,&nbsp;Yonghong Liu,&nbsp;Longyan Zhao","doi":"10.1016/j.carbpol.2026.125036","DOIUrl":"10.1016/j.carbpol.2026.125036","url":null,"abstract":"<div><div>Safe, potent, and low-bleeding anticoagulants remain an unmet medical need. Here we report a homogeneous glycosaminoglycan (GAG), designated TPG, isolated from the brittlestar <em>Trichaster palmiferus</em>. TPG (30.3 kDa, 32% sulfate) is composed of an almost equimolar ratio of L-Iduronic acid (IdoA) and <em>N</em>-acetyl-D-galactosamine (GalNAc) together with minor D-glucosamine (GlcN), D-galacturonic acid (GalA), and D-galactose (Gal). These physicochemical properties are distinct from heparin, dermatan sulfate, and chondroitin sulfate. Using one- and two-dimensional NMR of its desulfated derivative, free-radical depolymerized fragments, and oligosaccharide fractions generated by partial <em>N</em>-deacetylation-deamination cleavage, we established that the polymer backbone is built from four repeating disaccharides: L-IdoA_2S3S-α-1,3-D-GalNAc_4S/6S-β-1,4-, L-IdoA_2S-α-1,3-D-GalNAc_4S/6S-β-1,4-, D-GalA-α-1,3-D-GalNAc_4S-β-1,4-, and D-GalNAc_4S-β-1,4-GlcN_0S/6S-α-1,3-. The IdoA_2S3S and GalA residues and the D-GalNAc_4S-β-1,4-GlcN_0S/6S-α-1,3- unit are rare in natural GAGs, rendering TPG resistant to chondroitinase ABC. NMR detected terminal Gal in desulfated TPG and large oligosaccharide fragments, but its connection pattern remains unclear. TPG prolongs clotting times by simultaneously blocking intrinsic factor Xase and potentiating HCII-mediated thrombin inhibition, and it achieves potent antithrombotic efficacy <em>in vivo</em> with virtually no bleeding, an advantage over enoxaparin. These findings establish a brittlestar GAG whose unusual sulfation pattern defines a new class of high-efficacy, low-bleeding anticoagulants.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"379 ","pages":"Article 125036"},"PeriodicalIF":12.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171307","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}

{"title":"Structuring water transport pathway of chitosan/poly(vinyl alcohol) hydrogels towards achieving high-efficiency and salt-resistive solar desalination","authors":"Yuankun Wang ,&nbsp;Feng Wang ,&nbsp;Yu Lu ,&nbsp;Defeng Wu","doi":"10.1016/j.carbpol.2026.125035","DOIUrl":"10.1016/j.carbpol.2026.125035","url":null,"abstract":"<div><div>Hydration of polymer networks and hierarchical water transport pathways are crucial for hydrogels as solar evaporators, which require ingenious design from the molecular interactions and pore structures inside the hydrogels to the outside surface architectures. Herein, an anisotropic chitosan (CS)/polyvinyl alcohol (PVA) hydrogel was fabricated by combining the Hofmeister effect and directional freezing ways. Four types of water transport pathways were structured: vertically spaced holes (1 mm) and vessels (20–30 μm) in the top part, accompanied by smaller pores (5–10 μm) inside the hole walls, and the channels (20–100 μm) with bimodal size distributions in the bottom part. The vessel-radially around-hole surface pattern could be molded simultaneously, and the hydration ability was easily tunable by changing CS contents. The optimized hydrogel possessed good thermal insulation (0.302 W⸳m⁻¹⸳K⁻¹) and excellent light absorption (&gt;97%), and the vaporization enthalpy was only 787 J⸳g⁻¹. Therefore, the as-fabricated evaporator showed a desirable performance with 4.51 kg⸳m⁻²⸳h⁻¹ evaporation rate and 98.6% energy efficiency (1-sun irradiation). A stable rate (3.02 kg⸳m⁻²⸳h⁻¹) could be well maintained over 100 h in the concentrated brine. This work also proposes an integrated strategy of structuring multidirectional pores and regulating water states of PVA hydrogel by using CS-phosphoric acid as precursor.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"379 ","pages":"Article 125035"},"PeriodicalIF":12.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076546","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}

{"title":"Water-mediated ternary acid solvent system for fabricating surface-selective esterified and light-colored lignin-containing cellulose nanofibrils","authors":"Xin Zhou,&nbsp;Songnan Hu,&nbsp;Yuhan Wang,&nbsp;Haisong Qi,&nbsp;Junli Ren,&nbsp;Fengxia Yue","doi":"10.1016/j.carbpol.2026.124997","DOIUrl":"10.1016/j.carbpol.2026.124997","url":null,"abstract":"<div><div>Lignin-containing cellulose nanofibrils (LCNF) offer distinct functional advantages for specific applications without requiring complete lignin removal, which alleviates both processing and economic constraints. However, the facile production of light-colored, high-performance LCNF remains challenging due to uncontrollable lignin-induced dark coloration, which substantially limits its applications in high-value domains. This study reports the production of surface esterified and light-colored LCNF using a ternary solvent system comprising lactic acid, <span>l</span>-cysteine, and water. The proposed approach effectively removes chromophoric lignin components while concurrently inducing cellulose surface esterification, improving fiber brightness without compromising thermal stability. Incorporating water into the solvent system reduces viscosity, improving process sustainability and promoting regioselective surface modification that predominantly targets the C6-OH. Subsequent mild mechanical fibrillation yielded LCNF with high stability (−33.7 mV) and fine diameter (4.0 ± 1.5 nm). A comprehensive analysis of the resulting nanofilms confirmed that surface esterification significantly enhances the mechanical properties, transparency, and water resistance of LCNF. The resulting films exhibit outstanding UV-blocking capabilities (∼99%, UPF &gt; 40), tunable wettability (54.3–72.2°), and superior mechanical strength (115.1 MPa). This acidic ternary solvent system presents a promising approach for fabricating surface-esterified high-performance cellulose nanofibrils, thereby facilitating the high-value utilization of LCNF in food packaging, cosmetics, and medical dressings.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"379 ","pages":"Article 124997"},"PeriodicalIF":12.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076555","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}

{"title":"Structure-function relationship of polysaccharides derived from Pericarpium Citri Reticulatae 'Chachiensis': highlighting the effects on metabolic syndrome by regulating gut microbiota","authors":"Gang Huang ,&nbsp;Bing Li ,&nbsp;Chengguo Li ,&nbsp;Baizhong Chen ,&nbsp;Yapeng Li ,&nbsp;Shuying Li ,&nbsp;Lishe Gan ,&nbsp;Dongli Li ,&nbsp;Lei Chen ,&nbsp;Chengwei He ,&nbsp;Xueling Zhang ,&nbsp;Ren-You Gan ,&nbsp;Rihui Wu","doi":"10.1016/j.carbpol.2026.124936","DOIUrl":"10.1016/j.carbpol.2026.124936","url":null,"abstract":"<div><div>The precise interaction between gut microbes and dietary polysaccharides is not fully understood. This study elucidated the structure-function relationship and the underlying mechanisms of polysaccharides derived from <em>Pericarpium Citri Reticulatae</em> ‘Chachiensis’ (PCRCP) against a high-fat diet (HFD)-induced metabolic syndrome (MetS). Three subfractions (PCRCPI-III) were isolated, with GalA contents of 79.7%, 56.7%, and 33.5% and average molecular weights of 48.85, 32.28, and 51.12 kDa, respectively. Notably, PCRCPI exhibits a linear backbone composed of →4)-GalA-(1→ residues, complemented by side chains of →5)-Ara-(1→ and →4)-Gal-(1→, interconnected via →2,4)-Rha-(1→ linkages. Their efficacy in mitigating MetS was structure-dependent, with PCRCPI exerting the most significant therapeutic effects. Oral administration of PCRCPI in mice alleviated metabolic phenotypes in a gut microbiota-dependent manner, characterized by the selective enrichment of an elongation taxonomic chain <em>Lactobacillales</em>-<em>Lactobacillaceae</em>-<em>Lactobacillus</em>-<em>Lactobacillus</em> spp. Colonization with live <em>Lactobacillus</em> strains enhanced the efficacy of PCRCPI in improving metabolic phenotypes, especially when co-administered with <em>Lactobacillus murinus</em>, which synergistically augmented insulin sensitivity and activated hepatic PPAR signaling. Additionally, PCRCPI increased microbial-derived deoxycholic acid, which activated PPAR-mediated fatty acid oxidation in hepatocytes. These findings suggest that PCRCPI may serve as a promising therapeutic agent for MetS management, potentially through the targeted stimulation of beneficia <em>Lactobacillus</em> proliferation.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"379 ","pages":"Article 124936"},"PeriodicalIF":12.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076986","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}

{"title":"Recent advances in redox-responsive polysaccharide-based nanostructures for cancer therapy","authors":"Jian Li ,&nbsp;Jinsong Wang ,&nbsp;Yang Huang ,&nbsp;Yuqian Liu ,&nbsp;Huining Xiao ,&nbsp;Farzad Seidi","doi":"10.1016/j.carbpol.2026.124969","DOIUrl":"10.1016/j.carbpol.2026.124969","url":null,"abstract":"<div><div>Conventional tumor chemotherapy faces limitations including drug resistance, high toxicity, non-selectivity, and side effects. Nano-drug delivery systems (DDSs) demonstrate stronger efficacy via enhanced permeability and retention (EPR) effect in tumor vasculature. This review provides a comprehensive analysis of a promising solution: redox-responsive drug delivery systems engineered from biocompatible polysaccharides. It exclusively details how the distinct reductive (glutathione, GSH) and oxidative (reactive oxygen species, ROS) species within the tumor microenvironment (TME) can be exploited for triggered drug release. We systematically evaluate a wide range of responsive groups – from established and emerging linkages such as disulfides, diselenides, thioketals, arylboronates, Pt (IV)- and ferrocene-based structures – integrated with versatile polysaccharide carriers. This review critically examines how these designs not only facilitate selective drug release and activation within tumor site but also enable active targeting (for instance via CD44 receptors) and synergistic combination therapies including photodynamic therapy (PDT) and immunotherapy. Furthermore, we discuss the key challenges in clinical translation and offer a perspective on integrating artificial intelligence for the design of personalized nanomedicines. This review by combining design approaches, their efficacy, and limitations assist scientists to select the optimal polysaccharide and most effective redox-responsive group to maximize anticancer effect and minimize off-target effects.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"379 ","pages":"Article 124969"},"PeriodicalIF":12.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076987","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}

{"title":"Passiflora edulis peel-bioinspired nanosilver/activated carbon-chitosan hydrogel beads - a low-cost, recyclable and robust catalyst for methyl orange reduction","authors":"Thi Be Ta Truong ,&nbsp;Thi Ngoc Linh Nguyen ,&nbsp;Trong Nguyen Le ,&nbsp;Ba Long Do ,&nbsp;Thi Thu Thuy Nguyen ,&nbsp;Minh Vuong Phan ,&nbsp;Quynh Nhu Pham ,&nbsp;Thanh Gia-Thien Ho ,&nbsp;Tri Nguyen","doi":"10.1016/j.carbpol.2026.125027","DOIUrl":"10.1016/j.carbpol.2026.125027","url":null,"abstract":"<div><div>The intensifying challenge of dye-laden industrial wastewater demands catalytic systems that are both highly efficient and environmentally sustainable. Herein, we report a multifunctional hydrogel-based composite catalyst consisting of silver nanoparticles immobilized on activated carbon–chitosan hydrogel beads (Ag/AC–CS Specifically, AgNPs were synthesized via a green route using <em>Passiflora edulis</em> peel extract as a dual reducing and stabilizing agent, in which polyphenols, flavonoids, and ascorbic acid reduce Ag⁺ to Ag⁰, while their oxygen-containing functional groups simultaneously cap and stabilize the resulting nanoparticles. The residual biomass after extraction was further valorized into activated carbon (AC), enabling full utilization of the agricultural waste within a circular economy framework. The hydrogel support was formed by ionic crosslinking of chitosan (CS) with sodium tripolyphosphate (TPP), which effectively immobilized AgNPs, minimized metal leaching, and allowed facile recovery. Comprehensive structural characterization using powder X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM–EDS), high-resolution transmission electron microscopy (HR-TEM), and selected area electron diffraction (SAED) confirmed uniformly dispersed AgNPs with an average particle size of 15.57 ± 3.64 nm and strong metal–support interactions. In the catalytic reduction of methyl orange (MO) using sodium borohydride (NaBH₄) as the reducing agent, the Ag/AC–CS catalyst achieved 97.35% dye removal within 30 min, with an apparent rate constant of k = 0.127 min⁻¹ under optimized conditions. Notably, continuous fixed-bed operation enabled sustained MO removal performance over five consecutive cycles, with superior stability and throughput compared to batch operation, accompanied by minimal Ag loss and preserved structural integrity. This integrated strategy combining green nanoparticle synthesis, biomass valorization, and a scalable fixed-bed configuration highlights Ag/AC–CS as a promising next-generation catalyst for sustainable and industrially relevant dye remediation.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"379 ","pages":"Article 125027"},"PeriodicalIF":12.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146049232","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}

{"title":"Robust, thermal insulated cellulose porous films for durable and efficient radiative cooling","authors":"Xinxin Chen ,&nbsp;Mengxiang Dang ,&nbsp;Longfei Sun ,&nbsp;Yusong Xu ,&nbsp;Yu Liu ,&nbsp;Lin Liu ,&nbsp;Guocheng Zhu ,&nbsp;Juming Yao","doi":"10.1016/j.carbpol.2026.125051","DOIUrl":"10.1016/j.carbpol.2026.125051","url":null,"abstract":"<div><div>Cellulose-based radiative cooler has attracted significant attention due to its inherent infrared emissivity, customizable structure and eco-friendliness, but is restrained by low solar reflectance and environmental durability. This work addresses these challenges by integrating hexagonal boron nitride (BN) into cellulose matrix to form robust and thermal insulated cellulose porous films. BN serves as dual-functional filler which can strengthen the mechanical property, simultaneously induce the multi-scattering interfaces to enhance solar reflectance. Such designed cellulose composite films (RPCF_BN-40) possessed abundant and regular porous architecture, achieved the enhanced solar reflectance of 95.69% and infrared emissivity of 0.89. Benefiting from the micro-nano pore structures and high refractive BN, RPCF_BN-40 displayed exceptional thermal insulation with high thermal blocking ratio of 81.31%. The synergistically integrated radiative cooling and thermal insulation capabilities enabled RPCF_BN-40 with a maximum temperature drop of 19 °C under strong sunlight, and 5.3 °C on cloudy day, as well as 3.1 °C at night, demonstrating high-efficiency outdoor radiative cooling. Importantly, the structural integrity and the solar reflectance of RPCF_BN-40 were maintained after 360 h of UV aging. Thus, this work provides a feasible strategy to fabricate effective and durable cellulose radiative cooling materials in diverse weather conditions.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"379 ","pages":"Article 125051"},"PeriodicalIF":12.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171258","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}

{"title":"Thermally stable alkaline chitin solutions via cryogenic processing enable homogeneous functionalization","authors":"Shichao Bi ,&nbsp;Jinchang Liang ,&nbsp;Guohui Sun ,&nbsp;Jiakui Ren ,&nbsp;Xiaoqiang Wang ,&nbsp;Bo Tang","doi":"10.1016/j.carbpol.2026.124954","DOIUrl":"10.1016/j.carbpol.2026.124954","url":null,"abstract":"<div><div>Alkali/urea solvents enable rapid dissolution of chitin and chitosan, advancing homogeneous chemical modification and functional materials construction. Nevertheless, the pronounced tendency of these solutions to gel at elevated temperatures critically limits their utility in thermally driven reactions. We demonstrate that initially dissolved chitin chains retain residual inter-chain associations, facilitating hydrogen-bond-driven crosslinking and aggregation during heating. To circumvent this limitation, we introduced a post-dissolution low-temperature conditioning strategy (−20 °C for ≥24 h). This treatment profoundly enhances molecular dispersion, yielding solutions with exceptional thermal stability that retain fluidity for &gt;24 h at 55 °C. Leveraging this stabilized system, we achieved efficient homogeneous alkylation, carboxylation, and quaternization of chitin at 55 °C. The reactions proceeded with high efficiency, affording derivatives with degrees of substitution (DS) exceeding 90%. Critically, quaternized chitin exhibited excellent water solubility. This work resolves a fundamental limitation in chitin processing and versatile and efficient route for thermally demanding homogeneous chemistry using alkali/urea solvents, broadening their applicability in biopolymer functionalization.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"379 ","pages":"Article 124954"},"PeriodicalIF":12.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171318","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}

{"title":"Robust and precise three-dimensional printing of high-amylose starch gels via concentrated calcium chloride regulation","authors":"Jianyu Ren ,&nbsp;Xianyao Li ,&nbsp;Yubo Huang ,&nbsp;Zhengbiao Gu ,&nbsp;Yan Hong ,&nbsp;Zhaofeng Li ,&nbsp;Caiming Li ,&nbsp;Xiaofeng Ban ,&nbsp;Li Cheng","doi":"10.1016/j.carbpol.2026.125016","DOIUrl":"10.1016/j.carbpol.2026.125016","url":null,"abstract":"<div><div>Starch-based thermo-extrusion 3D printing inks commonly suffer from low precision and poor stability, coupled with weak gel strength, rendering them unsuitable for diverse applications. This study proposes that a calcium chloride-mediated gelation strategy effectively addresses these issues. To this end, we prepared a series of inks using corn starch with varying amylose contents through a two-step method combined with high-concentration calcium chloride, followed by systematic characterization. Results demonstrate that high-amylose starch-based inks exhibit superior printability. Calcium chloride disrupts the starch's natural crystalline structure, forming a stable amorphous network that significantly enhances water retention and print resolution. Among these, the G50–29% gel exhibits optimal comprehensive properties, featuring excellent tensile and compressive strength. This efficient, scalable method significantly enhances the printability, mechanical strength, and structural stability of starch-based inks, laying the foundation for their application in flexible sensors and other fields.</div></div>","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"379 ","pages":"Article 125016"},"PeriodicalIF":12.5,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171311","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}