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Coffee Melanoidin‐Based Multipurpose Film Formation: Application to Single‐Cell Nanoencapsulation
ChemNanoMat ( IF 2.6 ) Pub Date : 2020-02-17 , DOI: 10.1002/cnma.202000004
Ji Yup Kim 1 , Seulbi Kim 2 , Sol Han 1 , Sang Yeong Han 1 , Cláudia P. Passos 3 , Jeongyeon Seo 1 , Hojae Lee 1 , Eunhye K. Kang 1 , João F. Mano 4 , Manuel A. Coimbra 3 , Ji Hun Park 2 , Insung S. Choi 1
Affiliation  

The melanoidin from soluble coffee is utilized as a material‐independent, multipurpose coating material. Instantaneous complexation of the coffee melanoidin (CM) with ferric ion (Fe3+) leads to surface‐adhesive aggregates, inducing sequential film deposition. Various chemical groups of the CM also allow for post‐functionalizations of the CM film, including surface‐initiated, ring‐opening polymerization and bioinspired silicification. In addition, the CM‐based coating is applied to single‐cell nanoencapsulation with a strategy of biphasic interfacial reactions. The method is highly cytocompatible (viability >98%), and the CM shell is cytoprotective against lytic enzymes. The coated cells inherit the characterictics of the CM, such as post‐functionalizability and antioxidant property. Considering that surface‐coating technologies with cytocompatible natural polymers have widely been used for engineering bioentities, the CM‐based coating strategy would provide an advanced option for biomedical applications.

中文翻译:

基于咖啡黑素的多用途成膜:在单细胞纳米封装中的应用

来自可溶咖啡的黑色素可用作独立于材料的多功能涂层材料。咖啡黑素(CM)与三价铁离子(Fe 3+)导致表面粘附的聚集体,导致连续的膜沉积。CM的各种化学基团还允许CM膜的后功能化,包括表面引发,开环聚合和生物启发的硅化作用。此外,基于CM的涂层可通过双相界面反应策略应用于单细胞纳米封装。该方法具有高度的细胞相容性(生存力> 98%),并且CM外壳对裂解酶具有细胞保护作用。包被的细胞继承了CM的特征,例如后功能化性和抗氧化性能。考虑到具有细胞相容性天然聚合物的表面涂层技术已广泛用于工程生物实体,基于CM的涂层策略将为生物医学应用提供高级选择。
更新日期:2020-02-17
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