Evidence for Why Tri(ethylene oxide) Functionalized Si-C Linked Monolayers on Si(111) Have Inferior Protein Antifouling Properties Relative to the Equivalent Alkanethiol Monolayers Assembled on Gold

Article

<< Previous

Next >>

Contents Vol 58(9)

doi:10.1071/CH05121

Evidence for Why Tri(ethylene oxide) Functionalized Si–C Linked Monolayers on Si(111) Have Inferior Protein Antifouling Properties Relative to the Equivalent Alkanethiol Monolayers Assembled on Gold

Till Böcking ^A ^B, Michael Gal ^B, Katharina Gaus ^C, J. Justin Gooding ^A ^D

^A School of Chemistry, University of New South Wales, Sydney NSW 2052, Australia.
^B School of Physics, University of New South Wales, Sydney NSW 2052, Australia.
^C Centre for Vascular Research, School of Medical Sciences, University of New South Wales, Sydney NSW 2052, Australia.
^D Corresponding author. Email: Justin.Gooding@unsw.edu.au





	PDF (184 KB) $25



	Supplementary Material



	Export Citation

Print

Australian Journal of Chemistry 58(9) 660–663 http://dx.doi.org/10.1071/CH05121
Submitted: 16 May 2005 Accepted: 19 July 2005 Published online: 21 September 2005

Abstract

High quality methoxy-terminated monolayers containing a tri(ethylene oxide) moiety were formed on Si(111)–H surfaces in thermal hydrosilylation reactions. X-ray photoelectron spectroscopy, contact angle, and X-ray reflectivity measurements suggested that the suboptimal protein anti-fouling properties of these Si–C linked monolayers were due to a reduced lateral packing density of the chains resulting in a disordered layer with insufficient internal and external hydrophilicity.