文献类型：期刊文献

英文题名：A novel eco-friendly and economical approach of bamboo colorization through biomimetic polymerization of dopamine melanin inspired by photonic microstructure of bird plumage

作者：Song, Wei[1,2,3] Fei, Benhua[1] Fang, Changhua[1] Zhang, Shuangbao[2] Zhao, Rongjun[3]

第一作者：Song, Wei

通信作者：Song, W[1];Fang, CH[1];Song, W[2];Zhang, SB[2];Song, W[3];Zhao, RJ[3]

机构：[1]Beijing Bamboo & Rattan Sci & Technol, Int Ctr Bamboo & Rattan, Key Lab Natl Forestry & Grassland Adm, Beijing 100102, Peoples R China;[2]Beijing Forestry Univ, Beijing Key Lab Wood Sci & Engn, MOE Key Lab Wooden Mat Sci & Applicat, Beijing 100083, Peoples R China;[3]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2024

卷号：458

外文期刊名：JOURNAL OF CLEANER PRODUCTION

收录：;EI(收录号：20242016087517);Scopus(收录号：2-s2.0-85192802317);WOS:【SCI-EXPANDED(收录号:WOS:001241640100001)】；

基金：This work was supported by National Natural Science Foundation of China (32230072, 32171707) , Fundamental Research Funds of ICBR (1632022021) , and Science & Technology Research and Development Program of Guizhou Forestry Administration for Rural Industrial Revolution and Characteristic Forestry Industry (GZMC-ZD20202112) .

语种：英文

外文关键词：Bamboo; Structural color; Polydopamine melanin; Thin-film interference; Bird plumage

摘要：Bamboo is a low-carbon, sustainable, and versatile substitute for many synthetic materials, but limited variety of color restricts bamboo's decoration performance and added value. Traditional chemical colorization suffers poor generality, massive resource consumption, low colorfastness, high pollution, and remarkable damage to bamboo. This research pioneered an eco-friendly, economical approach to tailor bamboo color while keeping natural texture. Through a facile, mild modification by dopamine (a tyrosine derivative), its biomimetic polymerization endowed bamboo surface with a double-layered polydopamine melanin system mimicking morphology and composition of (keratin layer)/(melanin granules) microstructure of colorful bird plumage. Chromatic-optical and microstructural characterizations showed that polydopamine system's upper layer was nanoscale - submicronscale (thickness 55-215 nm) film bestowing on bamboo structural colors through thin-film interference. All colors at visible wavelength could be formed through controlling film thickness by adjusting dopamine concentration. Thicker film was more continuous and smoother, while thinner film was stabler. Polydopamine system's lower layer was micronscale (thickness 1.2-4.4 mu m) aggregate of particles enhancing color saturation through suppressing light scattering. Amorphous arrangement of polydopamine system made structural colors on bamboo display weak angle dependence. Physicochemical characterizations proved that bamboo featured noncovalent interaction with deposited polydopamine, which never destroyed bamboo's crystalline structure. Structural colors on bamboo exhibited satisfactory stability in long-term exposure and mechanical washing tests. Overall, proposed colorization was confirmed eco-friendly, convenient, and effective, thus contributing novel ideas to cleaner production in bamboo utilization.