| Literature DB >> 24123523 |
Mengjiao Cheng1, Qian Liu, Guannan Ju, Yajun Zhang, Lei Jiang, Feng Shi.
Abstract
Superhydrophobic to neutral water droplets, superhydrophilic to acidic or basic. This double transition of surface wettability in response to a single stimulus - pH - is demonstrated for the first time. The smart surface is composed of a rough gold surface modified with a self-assembled monolayer (SAM) containing three thiols, HS(CH2 )11 CH3 , HS(CH2 )10 COOH, and HS(CH2 )11 NH2 . A ternary diagram is generated that describes wettability as a function of the SAM composition and the pH of the surrounding solution.Entities:
Keywords: pH-responsive surface; self-assembled monolayer; smart surface; superhydrophilicity; superhydrophobicity; ternary diagram
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Year: 2013 PMID： 24123523 DOI： 10.1002/adma.201302187
Source DB: PubMed Journal: Adv Mater ISSN： 0935-9648 Impact factor: 30.849