論文

国際誌
2021年

Control of Structural Coloration by Natural Sunlight Irradiation on a Melanin Precursor Polymer Inspired by Skin Tanning

Biomacromolecules
  • Okoshi, T.
  • ,
  • Iwasaki, T.
  • ,
  • Takahashi, S.
  • ,
  • Iwasaki, Y.
  • ,
  • Kishikawa, K.
  • ,
  • Kohri, M.

22
4
開始ページ
1730
終了ページ
1738
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1021/acs.biomac.1c00161

Natural melanin affects the reflection and absorption of light, and it is known as an important element in producing bright structural colors in nature. In this study, we prepared core-shell particles using a melanin precursor polymer, that is, polytyrosine (PTy), as a shell layer by the oxidative polymerization of tyrosine ethyl ester (Ty) in the presence of cerium oxide (CeO2) core particles. Inspired by skin tanning, irradiating the CeO2@PTy core-shell particles with UV or natural sunlight caused melanization by extending the π-conjugated length of PTy, producing colloidal particles with the ability to absorb light. The pellet samples consisting of CeO2@PTy particles appeared whitish because of multiple scattered light. In contrast, the light absorption capacity of CeO2@PTy UV or CeO2@PTy Sun particles after light irradiation suppressed scattered light, dramatically improving the visibility of the structural color of the pellet samples made from these particles. Thus, a new method has been developed to control the visualization of structural colors to the human eye by irradiating the melanin precursor polymer with light.

リンク情報
DOI
https://doi.org/10.1021/acs.biomac.1c00161
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/33730848
URL
http://www.scopus.com/inward/record.url?eid=2-s2.0-85103861658&partnerID=MN8TOARS
ID情報
  • DOI : 10.1021/acs.biomac.1c00161
  • ISSN : 1526-4602
  • ISSN : 1525-7797
  • ORCIDのPut Code : 97058204
  • PubMed ID : 33730848
  • SCOPUS ID : 85103861658

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