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|Title:||Raman spectroscopy probing of self-assembled monolayers inside the pores of gold nanotube membranes|
|Citation:||Physical Chemistry Chemical Physics, 2011; 13(43):19587-19593|
|Publisher:||Royal Society of Chemistry|
|Leonora Velleman, Jean-Luc Bruneel, François Guillaume, Dusan Losic and Joe George Shapter|
|Abstract:||Electroless deposition was used to coat porous alumina membranes with gold. This process reduced the pore diameters and provided a platform suitable for surface modifications with self assembled monolayers (SAMs). The surface enhanced Raman scattering (SERS) effect was employed in order to confirm and characterise the formation of SAMs of 3-mercaptobenzoic acid (mMBA) inside the pores of gold nanotube membranes prepared using porous alumina (PA) templates. The investigation of the coverage and reproducibility of SAMs within porous matrices is of utmost importance in the design of filtration membranes and sensing platforms. Raman spectroscopy is capable of spatially resolved techniques such as mapping which was used to characterise the distribution of mMBA assembly within the pores. Due to the highly ordered structure of porous alumina and well controlled electroless gold deposition, these gold coated membranes have the potential to develop into SERS active substrates for ultrasensitive sensing technologies.|
|Rights:||This journal is © the Owner Societies 2011|
|Appears in Collections:||Chemical Engineering publications|
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