title: PEGylation of porous silicon using click chemistry.
abstract: Porous silicon has received considerable interest in recent years in a range of biomedical applications, with its performance determined by surface chemistry. In this work, we investigate the PEGylation of porous silicon wafers using click chemistry. The porous silicon wafer surface chemistry was monitored at each stage of the reaction via photoacoustic Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy, whereas sessile drop contact angle and model protein adsorption measurements were used to characterize the final PEGylated surface. This work highlights the simplicity of click-chemistry-based functionalization in tailoring the porous silicon surface chemistry and controlling protein-porous silicon interactions.
authors.affiliation: Ian Wark Research Institute, Special Research Centre for Particle and Material Interfaces, University of South Australia, Mawson Lakes Blvd, Mawson Lakes, South Australia, Australia 5095.
authors.forename: Leanne
authors.initials: L
authors.lastname: Britcher
authors.forename: Timothy J
authors.initials: TJ
authors.lastname: Barnes
authors.forename: Hans J
authors.initials: HJ
authors.lastname: Griesser
authors.forename: Clive A
authors.initials: CA
authors.lastname: Prestidge
mesh_terms: D015394:Molecular Structure; D011092:Polyethylene Glycols / Q000737:chemistry*; D016062:Porosity; D012825:Silicon / Q000737:chemistry*; D013057:Spectrum Analysis
chemical_list: D011092:Polyethylene Glycols; D012825:Silicon