纳米多孔和生物相容性tempo氧化纤维素纳米原纤维/海藻酸钠/聚乙烯醇（CNF/SA/PVA）气凝胶在疏水有机污染物去除和细胞毒性测试中的潜在应用

IF 3.9 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: B Pub Date : 2025-07-07 DOI:10.1016/j.mseb.2025.118583

Cheera Prasad , Seung Hoon Oh , Dong Joo Min , Sung Woo Lee , You-Ree Nam , M.Venkata Subbaiah , Jet-Chau Wen , Jong Hyuk Bae , Hyeong Yeol Choi

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引用次数: 0

摘要

疏水和亲油吸附剂已被广泛研究用于溢油清理，但往往存在生物相容性低和可重复使用性差的问题。在这项研究中，采用CNF、PVA、戊二醛和海藻酸钠（SA）的化学交联，然后进行冷冻干燥和甲基三氯硅烷（MTCS）气相硅烷化，制备了超轻、柔性和疏水改性的temo氧化纤维素纳米纤维（CNF）气凝胶。所得到的气凝胶具有相互连接的多孔结构，孔径可根据CNF含量进行调节。0.5CNF/SA/PVA气凝胶具有139.5°的高水接触角，并表现出出色的油吸附能力（例如，对葵花籽油的吸附能力为40.25 g/g）。吸附行为更符合准二级动力学模型，而非一级动力学模型。此外，细胞毒性测试显示高生物相容性，细胞损伤小于阳性对照。这些发现表明，疏水cnf气凝胶是环境友好型溢油修复和含油废水处理的有希望的候选者。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Nanoporous and biocompatible TEMPO-oxidized cellulose Nanofibrils/Sodium Alginate/Polyvinyl alcohol (CNF/SA/PVA) aerogel with potential applications in hydrophobic organic contaminants removal and cytotoxicity tests

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Hydrophobic and oleophilic absorbents have been widely studied for oil spill cleanup but often suffer from low biocompatibility and poor reusability. In this study, ultralight, flexible, and hydrophobically modified TEMPO-oxidized cellulose nanofibril (CNF)-based aerogels were fabricated using chemical cross-linking of CNF, PVA, glutaraldehyde, and sodium alginate (SA), followed by freeze-drying and methyltrichlorosilane (MTCS) vapor-phase silanization. The resulting aerogels exhibited interconnected porous structures with tunable pore size depending on CNF content. The 0.5CNF/SA/PVA aerogels achieved a high water contact angle of 139.5° and demonstrated outstanding oil adsorption capacity (e.g., 40.25 g/g for sunflower oil). Adsorption behavior followed the pseudo-second-order kinetic model more closely than the first-order model. Additionally, cytotoxicity testing revealed high biocompatibility, with less cell damage than the positive control. These findings suggest that hydrophobic CNF-based aerogels are promising candidates for environmentally friendly oil spill remediation and oily wastewater treatment.

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来源期刊

Materials Science and Engineering: B 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.