(Invited) Electrochemical Detection of Collisions of Single Soft Nanoparticles-Emulsions  and Viruses

Monday, 25 May 2015: 08:00
Williford Room C (Hilton Chicago)
A. J. Bard (The University of Texas at Austin), B. K. Kim (University of Tesxas at Austin), A. Boika (Univerof Akron), and J. E. Dick (University of Tesxas at Austin)
Research on nanoparticle (NP) collisions with an ultramicroelectrode (UME) has been extended to “soft” NPs, like emulsion droplets and viruses.  The electrochemical response and the frequency of collisions allow one to extract information about the NPs and even study electrode reactions in fL and aL droplet reactors.   It also allows working with solvents, like toluene, that are not frequently employed for electrochemical reactions and to obtain information about ion transfer across water/oil interfaces.   These studies also allow one to detect rather subtle changes in diffusion coefficient of viruses.