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Issue 43, 2011
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Raman spectroscopy probing of self-assembled monolayers inside the pores of gold nanotube membranes

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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.

Graphical abstract: Raman spectroscopy probing of self-assembled monolayers inside the pores of gold nanotube membranes

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Publication details

The article was received on 01 Jun 2011, accepted on 12 Sep 2011 and first published on 07 Oct 2011


Article type: Paper
DOI: 10.1039/C1CP21765H
Citation: Phys. Chem. Chem. Phys., 2011,13, 19587-19593
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    Raman spectroscopy probing of self-assembled monolayers inside the pores of gold nanotube membranes

    L. Velleman, J. Bruneel, F. Guillaume, D. Losic and J. G. Shapter, Phys. Chem. Chem. Phys., 2011, 13, 19587
    DOI: 10.1039/C1CP21765H

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