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文獻名：A colored hydrophobic peptide film based on self-assembled two-fold topology

 

 

作者： Guy Wiernika, Narendra Kumar Mishra^b,c, Sudipta Mondal^a,d, Rafat Ali^b, Ehud Gazit^a, Sandeep Verma^b

^a Department of Molecular Biology and Biotechnology, George S. Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel

^b Department of Chemistry and Center for Nanoscience, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India

^c Department of Chemistry, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark

^d Department of Biotechnology, National Institute of Technology Durgapur, Durgapur 713209, WB, India

 

 

摘要：Structural colors are abundant in nature and bear advantages over pigment-based colors, such as higher durability, brilliance and often physical hydrophobicity, thus underlying their vast potential for technological applications. Recently, biomimetics of complex natural topologies resulting in such effects has been extensively studied, requiring advanced processing and fabrication techniques. Yet, artificial topologies combining structural coloration and hydrophobicity have not been reported. Herein, we present the bottom-up fabrication of short self-assembling peptides as surface covering films, resulting in an easily achievable multilevel morphology of primary structures in a foam-like enclosure, producing structural colors and hydrophobicity. We demonstrate simple techniques allowing controlled coloration of different surfaces while maintaining an >100° water contact angle (WCA). The new artificial topology is much simpler than the natural counterparts and is not limited to a specific peptide, thus allowing the design of modular materials with unparalleled multifunctionalities and potential for further tuning and modifications.

 

關鍵詞：Peptides;Self-assembly;Hydrophobic effect;Nanostructures;Structural color

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