Development of a β-cyclodextrin-chitosan polymer as active coating for cellulosic surfaces and capturing of microcystin-LR
Development of a β-cyclodextrin-chitosan polymer as active coating for cellulosic surfaces and capturing of microcystin-LR
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开发β-环糊精-壳聚糖聚合物作为纤维素表面的活性涂层并捕获微囊藻毒素-LR
DOI：
10.1016/j.surfin.2022.102192
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发表时间：
2022
影响因子：
6.2
通讯作者：
Peresin, Maria S.
中科院分区：
文献类型：
--
作者：
Gomez-Maldonado, Diego;Filpponen, Ilari;Vega Erramuspe, Iris Beatriz;Johansson, Leena-Sisko;Mori, María Fernanda;Babu, R. Jayachandra;Waters, Matthew N.;Peresin, Maria S.
在寻找更环保的吸附材料时，使用多糖的结果很有吸引力。特别是，它们可以用作涂层，为常见材料添加功能，这是一种值得探索的新途径。它们相互吸附的固有趋势是有价值的，因为它在最外层表面上添加了各种官能团。我们的研究重点是用2，2，6，6-四甲基哌啶-1-氧基（克里思）氧化的β-环糊精（Ch-TOCD）对生物高分子壳聚糖（Ch）进行预修饰，然后将其吸附到纤维素纳米纤维（CNF）表面。此外，通过使用三种不同的具有不同取代度的Ch-TOCD缀合物，研究了驱动改性壳聚糖吸附到纤维素主链上的机制。这是进行评估是否吸附的指导下的氨基（Ch）和纤维素的残余羧基之间的可用的静电相互作用的变化，或者如果吸附是由两个多糖的羟基的分散力驱动。最后，为了评估添加的疏水腔（Ch-TOCD缀合物）的活力，当在CNF珠中施加Ch-TOCD涂层时，通过表面水平上的具有耗散监测的石英晶体微天平（QCM-D）和通过高效液相色谱（HPLC）捕获被归类为监测污染物（微囊藻毒素-LR）的两亲性毒素。结果表明，Ch-TOCD的吸附完成在类似的水平独立的取代度。微囊藻毒素-LR在模型CNF表面的最高吸附量为20.5mg/g，在CNF包被珠上的最高吸附量为2.36mg/g。两种纳米纤维素系统的成功涂覆和微囊藻毒素的正吸附表明这种生物基低能量输入涂层在高端领域如药物递送、纺织和水修复中的广泛应用。
In the search for more environmentally friendly adsorbent materials, the use of polysaccharides results attractive. Especially, as they can be used as coatings to add functionality to common materials as a new avenue to explore. Their inherent tendency to adsorb into each other is valuable as it adds a variety of functional groups on the outmost surface layer. Our project focuses on the pre-modification of the bio-polymer chitosan (Ch) with a 2,2,6,6-Tetramethylpiperidine-1-oxyl (TEMPO) oxidized β-cyclodextrin (Ch-TOCD), which was then adsorbed onto the cellulose nanofibrils (CNF) surface. Furthermore, the mechanism driving the adsorption of the modified chitosan onto the cellulose backbone was studied by using three different Ch-TOCD conjugates possessing different degrees of substitutions. This was conducted to evaluate whether the adsorption was guided by the change of the available electrostatic interactions between the amino (Ch) and the residual carboxyl groups of cellulose or if the adsorption was driven by the dispersive forces of the hydroxyl groups from both polysaccharides. Finally, to assess the viability of the added hydrophobic cavities (Ch-TOCD conjugate), the capture of an amphipathic toxin categorized as a monitored pollutant (microcystin-LR) was followed by Quartz Crystal Microbalance with Dissipation monitoring (QCM-D) on a surface level and by High-performance liquid chromatography (HPLC) when the Ch-TOCD coating was applied in CNF beads. Results showed that the adsorption of Ch-TOCD was accomplished at similar levels independent of the degree of substitution. The highest adsorbed amounts of microcystin-LR were 20.5 mg/g on the model coated CNF surface, and 2.36 mg/g on the CNF coated beads. The successful coating of two nanocellulose systems and the positive adsorption of the microcystin suggest a broad-scale application of this bio-based, low energy input coating in high-end fields such as drug delivery, textile, and water restoration.
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影响因子：
6.2
作者：
Fairley, Neal;Fernandez, Vincent;Baltrusaitis, Jonas
通讯作者：
Baltrusaitis, Jonas
影响因子：
13.6
作者：
Tran, Chieu D.;Duri, Simon;Delneri, Ambra;Franko, Mladen
通讯作者：
Franko, Mladen
影响因子：
5.9
作者：
Huang, Chih-Feng;Tu, Cheng-Wei;Lin, Kun-Yi Andrew
通讯作者：
Lin, Kun-Yi Andrew
影响因子：
6.2
作者：
Saito, T;Isogai, A
通讯作者：
Isogai, A
菌藻产生的微囊藻毒素-LR：污染物质的光学检测和纯化
影响因子：
8.4
作者：
["R. Al
通讯作者：
["R. Al