State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang, 621010, PR China; Nuclear Waste and Environmental Safety Key Laboratory of Defense, Southwest University of Science and Technology, Mianyang, 621010, PR China.
College of Textiles and Clothing, Qingdao University, Qingdao, 266071, PR China.
Carbohydr Polym. 2018 Oct 1;197:253-259. doi: 10.1016/j.carbpol.2018.06.005. Epub 2018 Jun 4.
Artificial nacre-like konjac glucomannan-Montmorillonite (KGM-MTM) composite films with 'brick and mortar' microstructures have been fabricated based on using KGM-MTM hybrid nanosheets as building blocks. In the designed fabrication procedure, we assembled hybrid building blocks with a thin layer of KGM coating on the MTM nanosheets to form KGM-MTM composite film via vacuum filtration. The nacre-like microstructures enhanced the light transmission performance and mechanical properties (Tensile strength: 116 MPa) of KGM-MTM composite films. Additionally, Ag nanoparticles (Ag NPs) can be incorporated into the layered structures of KGM-MTM composite films via an in situ reduced method. It was found that KGM-MTM-Ag composite films significantly suppress bacterial growth, which makes them potentially applicable as antimicrobial films in the biomedical field.
基于使用 KGM-MTM 杂化纳米片作为构建块，制备了具有“砖-泥”微观结构的人工珍珠母样魔芋葡甘聚糖-蒙脱石（KGM-MTM）复合膜。在设计的制备过程中，我们通过真空过滤将具有 KGM 薄层涂层的杂化构建块组装成 KGM-MTM 复合膜。珍珠母样微结构提高了 KGM-MTM 复合膜的透光性能和力学性能（拉伸强度：116MPa）。此外，Ag 纳米颗粒（AgNPs）可以通过原位还原方法掺入 KGM-MTM 复合膜的层状结构中。研究发现，KGM-MTM-Ag 复合膜能显著抑制细菌生长，这使得它们有可能作为抗菌膜在生物医学领域得到应用。
