生物相容性材料
材料科学
纳米技术
紫外线
环境友好型
天然材料
壳聚糖
生化工程
耐久性
化学
高分子科学
光电子学
生物
有机化学
复合材料
生态学
生物医学工程
工程类
医学
作者
Susana C.M. Fernandes,A. Alonso,Teodoro Palomares,Verónica Zubillaga,Jalel Labidi,Vincent Bulone
标识
DOI:10.1021/acsami.5b04064
摘要
Ultraviolet radiations have many detrimental effects in living organisms that challenge the stability and function of cellular structures. UV exposure also alters the properties and durability of materials and affects their lifetime. It is becoming increasingly important to develop new biocompatible and environmentally friendly materials to address these issues. Inspired by the strategy developed by fish, algae, and microorganisms exposed to UV radiations in confined ecosystems, we have constructed novel UV-protective materials that exclusively consist of natural compounds. Chitosan was chosen as the matrix for grafting mycosporines and mycosporine-like amino acids as the functional components of the active materials. Here, we show that these materials are biocompatible, photoresistant, and thermoresistant, and exhibit a highly efficient absorption of both UV-A and UV-B radiations. Thus, they have the potential to provide an efficient protection against both types of UV radiations and overcome several shortfalls of the current UV-protective products. In practice, the same concept can be applied to other biopolymers than chitosan and used to produce multifunctional materials. Therefore, it has a great potential to be exploited in a broad range of applications in living organisms and nonliving systems.
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