Picture of mobile phone running fintech app

Fintech: Open Access research exploring new frontiers in financial technology

Strathprints makes available Open Access scholarly outputs by the Department of Accounting & Finance at Strathclyde. Particular research specialisms include financial risk management and investment strategies.

The Department also hosts the Centre for Financial Regulation and Innovation (CeFRI), demonstrating research expertise in fintech and capital markets. It also aims to provide a strategic link between academia, policy-makers, regulators and other financial industry participants.

Explore all Strathclyde Open Access research...

A study of the dynamic interaction of surfactants with graphite and carbon nanotubes using Fmoc-amino acids as a model system

Li, Y.N. and Cousins, B.G. and Ulijn, R.V. and Kinloch, I.A. (2009) A study of the dynamic interaction of surfactants with graphite and carbon nanotubes using Fmoc-amino acids as a model system. Langmuir, 25 (19). pp. 11760-11767. ISSN 0743-7463

Full text not available in this repository. Request a copy from the Strathclyde author


We have studied the dynamic interaction of surfactants with carbon surfaces by using a series of Fmoc- (N-(fluorenyl-9-methoxycarbonyl)) terminated amino acid derivatives (Fmoc−X, where X is glycine, tyrosine, phenylalanine, tryptophan, or histidine) as a model system. In these systems, highly conjugated fluorenyl groups and aromatic amino acid side chains interact with the carbon surface, while carboxylate groups provide an overall negative charge. Ideal carbon surfaces were selected which possessed either predominantly macroscale (graphite) or nanoscale features (multiwalled carbon nanotube (MWNT) mats). The adsorption equilibrium for the Fmoc−X solutions with the graphitic surfaces was well-described by the Freundlich model. When a library containing various Fmoc−X compounds were exposed to a target graphite surface, Fmoc−tryptophan was found to bind preferentially at the expense of the other components present, leading to a substantial difference in the observed binding behavior compared to individual adsorption experiments. This approach therefore provides a straightforward means to identify good surfactants within a library of many candidates. Finally, the fully reversible nature of Fmoc−X binding was demonstrated by switching the surface chemistry of carbon substrate through sequential exposure to surfactants with increasing binding energies.