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Fabrication of Micropatterned Gold Nanoparticle Arrays as a Template for Surface‐Initiated Polymerization of Stimuli‐Responsive Polymers
Author(s) -
Jung Jaeyoen,
Kim Ki Woo,
Na Kyunga,
Kaholek Marian,
Zauscher Stefan,
Hyun Jinho
Publication year - 2006
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200600069
Subject(s) - materials science , microcontact printing , polymerization , template , polymer , nanotechnology , nanoparticle , polystyrene , colloidal gold , chemical engineering , adsorption , polymer chemistry , composite material , chemistry , organic chemistry , engineering
Summary: This paper demonstrates a new, reliable, and simple method for fabricating micropatterned nanoparticle arrays that can serve as templates for the surface‐initiated polymerization of polymer brushes. As a proof of concept, we micropatterned gold nanoparticles (Au‐NPs, ≈10 nm) onto glass, silicon, polystyrene, and gold surfaces by a simple three‐step process: (1) microcontact printing of soluble polymer, (2) incubation with a solution of Au‐NPs, and (3) lift‐off of the template in a mixture of ethanol and deionized water. 40 µm wide features were successfully fabricated without any significant defects or nonspecific adsorption on the background. To demonstrate the utility of these Au‐NP templates, we subsequently polymerized N ‐isopropylacrylamide by surface‐initiated polymerization, using a surface‐bound initiator.Synthesis of PNIPAAm brushes from micropatterned Au‐NP.