Surface plasmon resonance spectroscopy study of electrostatically adsorbed layers

Langmuir : the ACS Journal of Surfaces and Colloids
Valérie J Gandubert, R Bruce Lennox

Abstract

The use of 4-(dimethylamino)pyridine to form an adhesion layer for the adsorption of anionic polyelectrolytes on gold surfaces is investigated. In situ surface plasmon resonance spectroscopy is used to monitor the changes in thickness of the adsorbed layers as a function of pH changes. Weak (poly(acrylate)) and strong (poly(styrenesulfonate)) polyelectrolytes have been studied. Although 4-(dimethylamino)pyridine is weakly bound to gold, it is not displaced by these polyelectrolytes and acts as an adhesion layer. The relationship of the interaction of anionic polyelectrolytes with 4-(dimethylamino)pyridine-modified planar gold and gold nanoparticles is discussed.

References

Jun 23, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Diptabhas Sarkar, P Somasundaran
Jun 29, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Valérie J Gandubert, R Bruce Lennox
Nov 18, 2005·Journal of Colloid and Interface Science·Marcel GiesbersMartien A Cohen Stuart

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Citations

Jun 12, 2013·Journal of Photochemistry and Photobiology. B, Biology·Ravishankar BhatA Venkataraman
Dec 13, 2007·Journal of Molecular Recognition : JMR·Rebecca L Rich, David G Myszka
Feb 10, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Scott M RosendahlIan J Burgess
Jan 24, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Burke C Barlow, Ian J Burgess

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