We present the first detailed experimental observation and analysis of nanoparticle electrophoresis through a nanochannel obtained with synchronous high-bandwidth electrical and camera recordings. Optically determined particle diffusion coefficients agree with values extracted from fitting electrical transport measurements to distributions from 1D Fokker-Planck diffusion-drift theory. This combined tracking strategy enables optical recognition and electrical characterization of nanoparticles in solution, which can have a broad range of applications in biology and materials science.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5146980 | PMC |
| http://dx.doi.org/10.1021/acs.nanolett.5b01243 | DOI Listing |
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