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Electrochemical detection of single micelles through ‘nano-impacts’

A new class of ‘soft’ particles, micelles, is detected electrochemically via ‘nano-impacts’ for the first time. Short, sharp bursts of current are used to indicate the electrical contact of a single CTAB (cetyltrimethylammonium bromide) micelle with an electrode via the oxidation of the bromide cont...

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Detalles Bibliográficos
Autores principales: Toh, H. S., Compton, R. G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royal Society of Chemistry 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5664171/
https://www.ncbi.nlm.nih.gov/pubmed/29142729
http://dx.doi.org/10.1039/c5sc01635e
Descripción
Sumario:A new class of ‘soft’ particles, micelles, is detected electrochemically via ‘nano-impacts’ for the first time. Short, sharp bursts of current are used to indicate the electrical contact of a single CTAB (cetyltrimethylammonium bromide) micelle with an electrode via the oxidation of the bromide content. The variation in CTAB concentration for such ‘nano-impact’ experiments shows that a significant number of ‘spikes’ are observed above the CMC (critical micelle concentration) and this is attributed to the formation of micelles. A comparison with dynamic light scattering is also reported.