[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"item-2765":3},{"id":4,"title":5,"url":6,"summary":7,"summary_zh":8,"content":9,"source_name":10,"source_url":6,"published_at":11,"category":12,"cover_url":9,"hotness":13,"is_selected":14,"score":15,"score_detail":16,"sources":22,"tags":24,"view_count":30,"doi":31,"paper":32,"created_at":48},2765,"Tuning the architectural flexibility and dynamic swelling boundaries of pectin-chitosan hydrogels using choline chloride-based deep eutectic solvents","https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.nxmate.2026.103518","In modified biopolymers, balancing high swelling with tensile compliance remains a major challenge due to water-induced structural collapse. The study aims to systematically tuning the spatial configuration of hydrogen bond donors, HBD (ethylene glycol, glycerol, and acetic acid) in DES to modulate network properties of pectin-chitosan hydrogels (E20, G20 and A20) and their environmental responsiveness, ensuring structural integrity while permitting swelling. The network exhibiting pH and temperature-responsive swelling across pH 3–11 and temperature 30–60 °C, as well as an ionic swelling capacity that varied with valence (Na + > Ca 2+ > Fe 3+ ). By acting as a molecular wedge that competitively disrupts rigid native ionic crosslinks, the ethylene glycol-based DES (E20) reduced the gel fraction to the lowest; 13.33 ± 1.71%, creating an open skeletal framework that achieved a superior water absorption capacity of 16.02 ± 0.15 g\u002Fg at pH 7 due to the minimal size and little steric hindrance of ethylene glycol-based DES. Architectural flexibility was proven through both tensile compliance (Young's modulus of 0.26–1.44 MPa) and static compression load tolerance up to 49.05 kPa (4.91–49.05 kPa) stress range with a minimal fracture. In addition, the cyclic endurance was demonstrated through five consecutive hydration-dehydration cycles. This work establishes a physical-chemistry foundation for predictive molecular design framework that successfully decouples architectural flexibility and compressive load tolerance from swelling-induced network failure. Through this work, a smart, multi-stimuli-responsive, flexible, and high-swelling biopolymer matrix could be tailored for demanding real-world applications such as smart agriculture and soft robotics.","在改性生物聚合物中，由于水诱导的结构坍塌，平衡高溶胀性与拉伸顺应性仍然是一项重大挑战。本研究旨在系统调控低共熔溶剂（DES）中氢键供体（HBD）（乙二醇、甘油和乙酸）的空间构型，以调节果胶-壳聚糖水凝胶（E20、G20和A20）的网络特性及其环境响应性，在确保结构完整性的同时允许溶胀。该网络在pH 3–11和温度30–60 °C范围内表现出pH和温度响应性溶胀，以及随价态变化的离子溶胀能力（Na⁺ > Ca²⁺ > Fe³⁺）。基于乙二醇的DES（E20）作为分子楔子竞争性地破坏刚性天然离子交联，将凝胶分数降至最低，为13.33 ± 1.71%，形成了开放的骨架结构，由于基于乙二醇的DES尺寸最小且空间位阻小，在pH 7时实现了16.02 ± 0.15 g\u002Fg的优异吸水能力。通过拉伸顺应性（杨氏模量为0.26–1.44 MPa）和静态压缩载荷耐受性（应力范围为4.91–49.05 kPa，断裂极小）证明了结构柔韧性。此外，通过五次连续的水合-脱水循环证明了循环耐久性。本研究为预测性分子设计框架建立了物理化学基础，该框架成功地将结构柔韧性和压缩载荷耐受性与溶胀诱导的网络失效解耦。通过这项工作，可以定制一种智能、多刺激响应、柔性且高溶胀的生物聚合物基质，以满足智能农业和软体机器人等严苛的实际应用需求。",null,"Next Materials","2026-09-17T00:00:00Z","论文",10,false,72,{"impact":17,"substance":18,"depth":19,"authority":17,"freshness":13,"relevant":20,"comment":21},12,21,17,1,"果胶-壳聚糖水凝胶经DES调控实现pH\u002F温度\u002F离子多重响应与高溶胀，为智慧农业与软体机器人提供新材料设计框架，方法新颖但尚处实验室阶段。",[23],{"name":10,"url":6},[25,26,27,28,29],"智慧农业","水凝胶","农业新材料","生物聚合物","软体机器人",0,"10.1016\u002Fj.nxmate.2026.103518",{"doi":31,"openalex_id":33,"authors":34,"venue":10,"cited_by_count":30,"oa_url":6,"card":40,"direction":46,"ingested_from":47},"W7213449544",[35,37],{"name":36,"orcid":9},"Siti Noor Atiyah Md Raffe",{"name":38,"orcid":39},"Rizana Yusof","https:\u002F\u002Forcid.org\u002F0000-0001-7080-9655",{"tldr":41,"method":42,"finding":43,"direction":44,"opportunity":45},"用氯化胆碱基低共熔溶剂调控果胶-壳聚糖水凝胶网络，实现高溶胀与柔性的解耦。","合成E20\u002FG20\u002FA20水凝胶，测试pH、温度、离子响应溶胀及力学性能。","乙二醇基DES作分子楔破坏刚性交联，获得最高吸水16.02 g\u002Fg且保持柔性。","农业绿色发展与碳","可探索该智能水凝胶在农业保水缓释、土壤湿度响应及可降解地膜中的应用。","智慧农业 \u002F 农业物联网","openalex","2026-09-17T23:30:10.104249Z"]