Bioinspired polymeric pigments to mimic natural hair coloring.
Bioinspired polymeric pigments to mimic natural hair coloring.
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仿生聚合物颜料模仿自然染发
DOI：
10.1039/d0ra09539g
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发表时间：
2021-01-04
期刊：
影响因子：
3.9
通讯作者：
Fan Z
中科院分区：
文献类型：
--
作者：
Sun Y;Wang C;Sun M;Fan Z
由于人口日益老龄化，染发在日常生活中变得更加必要;然而合成染发剂通常具有染色条件苛刻、染色过程缓慢和生物毒性的缺点。在此，我们开发了一种生物启发的方法，以模仿自然染发过程中温和的条件下。与现有的条件苛刻的聚多巴胺沉积方法相比，这里实现了温和的条件和有效的沉积。首先，在酪氨酸羟化酶和金属离子的存在下，多巴胺可以被氧化成聚多巴胺，一种人类真黑素的模拟物，然后自组装成纳米级的颜料。通过优化实验参数，可以在1分钟内获得各种颜色和所需的暗度。此外，在用聚多巴胺组装体作为染发剂连续洗涤后观察到显著的耐久性。应用形态学分析来验证聚多巴胺组装体在毛发表面上的沉积，其诱导毛发颜色变化。此外，还进行了动物研究，以评估这种方法的效率和生物毒性。总的来说，这种生物启发的方法可以为家庭使用的生物相容性和有效的基于纳米材料的染发剂提供新的途径。
Due to an increasingly aging population, hair dyeing has become more necessary in daily life; however synthetic hair dyes often have the disadvantages of harsh dyeing conditions, a slow dyeing process and biological toxicity. Herein, we developed a bioinspired approach to mimic the natural hair dyeing process under mild conditions. Compared to the existing polydopamine deposition approach with harsh conditions, mild conditions and effective deposition were achieved here. First, in the presence of tyrosine hydroxylase and metal ions, dopamine could be oxidized into polydopamine, a mimic of human eumelanin, and then self-assembled into nanometer-scale pigments. Through optimizing the experimental parameters, various colors and the desired darkness could be achieved within less than 1 minute. In addition, significant durability was observed after continuous washing with polydopamine assemblies as hair dyes. Morphological analysis was applied to verify the deposition of polydopamine assemblies onto the hair surface, which induces the hair color change. Also, animal studies were conducted to evaluate the efficiency and biological toxicity of this approach. Overall, this bioinspired approach could provide a new avenue for biocompatible and effective nanomaterial-based hair dyes for at-home use.
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影响因子：
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影响因子：
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