Surface initiated polymerization (SIP) coupled with reversible addition-fragmentation chain transfer polymerization (RAFT) was used to functionalize microarray glass slides with block polymer brushes. N,N-dimethylacrylamide (DMA) and N-acryloyloxysuccinimide (NAS) (graft-poly[DMA-b-(DMA-co-NAS)]) brushes, with di-block architecture, were prepared from a novel RAFT chain transfer agent bearing a silanating moiety (RAFT silane) directly anchored onto the glass surfaces. Conformational characterization of the coatings was performed by Self Spectral Interference Fluorescence Microscopy (SSFM), an innovative technique that describes the location of a fluorescent DNA molecule relative to a surface with sub-nanometer accuracy. X-ray Photoelectron Spectroscopy (XPS) and Scanning Electron Microscopy (SEM) were used to characterize the coatings composition and morphology.
Synthesis and conformational characterization of functional di-block copolymer brushes for microarray technology / G. Di Carlo, F. Damin, L. Armelao, C. Maccato, S. Unlu, P.S. Spuhler, M. Chiari. - In: APPLIED SURFACE SCIENCE. - ISSN 0169-4332. - 258:8(2012), pp. 3750-3756.
Titolo: | Synthesis and conformational characterization of functional di-block copolymer brushes for microarray technology |
Autori: | DI CARLO, GABRIELE (Primo) |
Parole Chiave: | Block copolymers; DNA microarray; Polymer brushes; Reversible addition-fragmentation chain transfer polymerization (RAFT); Surface initiated polymerization |
Settore Scientifico Disciplinare: | Settore ING-IND/22 - Scienza e Tecnologia dei Materiali Settore CHIM/03 - Chimica Generale e Inorganica Settore CHIM/05 - Scienza e Tecnologia dei Materiali Polimerici |
Data di pubblicazione: | 2012 |
Rivista: | |
Tipologia: | Article (author) |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.apsusc.2011.12.019 |
Appare nelle tipologie: | 01 - Articolo su periodico |