Abstract
Electrical impedance spectroscopy characterizations of undecylenic acid monolayers on silicon surfaces and 16-Mercaptohexadecanoic acid monolayer on gold surfaces reveal pH-dependent capacitance and conductance properties of the monolayers. These pH dependencies relate to the effect of pH on the carboxylic termini of the monolayers consistent with the conductance of the termini increasing with increasing pH. The increasing conductance reduced the electrical detect-ability of the termini yielding an apparent decrease in the thickness of the monolayers.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Kagan CR, Afzali A, Martel R, Gignac LM, Solomon P.M, Schrott AG, Ek B, (2003) Nano Lett. 3 119.
Chen H, Wu XD, Yu QQ, Wang DP. (2002). Structure, Formation Mechanism and Reactions of Self-assembled Monolayers. Accessed via www.hxtb.icas.cn
Wong LS Elicia, Cott TC., James M, Coster HGL. (2006), Electrical Impedance Spectroscopy Characterizations of Alkyl-functionalized Silicon (III), Biophysical Reviews and letters, 1(3): 1–7.
Frank-Mario Boldt, Norman Baltas, Kai Borgwarth, Jurgen Heinze, (2005). Investigation of carboxylic-functionalized and n-alkanethiol self-assembled monolayers on gold and their application as pHsensitive probes using scanning electrochemical microscopy. Surface Science 59751–64.
Coster Hans GL, Chilcott TC., Adelle CF Coster. (1996) Impedance spectroscopy of interfaces, membranes and ultrastructures, bioelectro-chemistry and bioenergetics, 40, 79–98.
M.L. Chabinyc, X. Chen, R.E. Holmlin, H. Jacobs, H. Skulason, C.D. Frisbie, V. Mujica, M.A. Ratner, M.A. Rampi, G.M. Whitesides, (2002) J. Am. Chem. Soc. 124 11730.
N. Faucheux, R. Schweiss, K. L.utzow, C. Werner, T. Groth. (2004) Self-assembled monolayers with different terminating groups as model substrates for cell adhesion studies, Biomaterials, 25, 2721–2730.
R.P. Janek, W.R. Fawcett, A. Ulman, Langmuir 14 (1998) 3011.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2008 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Hu, T., Zhang, Y., Chilcott, T.C., Coster, H.G.L. (2008). Investigation of Carboxylic-functionalized Self-assembled Monolayers on Silicon and Gold and Their Application as pH-sensitive Probes Using Electrical Impedance Spectroscopy. In: Abu Osman, N.A., Ibrahim, F., Wan Abas, W.A.B., Abdul Rahman, H.S., Ting, HN. (eds) 4th Kuala Lumpur International Conference on Biomedical Engineering 2008. IFMBE Proceedings, vol 21. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-69139-6_26
Download citation
DOI: https://doi.org/10.1007/978-3-540-69139-6_26
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-69138-9
Online ISBN: 978-3-540-69139-6
eBook Packages: EngineeringEngineering (R0)