Precise Electrochemical Sizing of Individual Electro-Inactive ParticlesJulia Chung 1, Kevin W. Plaxco 1,2, Lior Sepunaru 2
1Interdepartmental Program in Biomedical Science and Engineering, University of California at Santa Barbara, 2Department of Chemistry and Biochemistry, University of California at Santa Barbara
As an analytical technique, nanoimpact electrochemistry, an increasingly important approach to counting and characterizing nanometer-scale, electro-inactive particles, suffers from poor precision due to the heterogeneous current distributions that arise from its use of ultramicroelectrodes. Outlined here is a generalized approach, termed "electrocatalytic interruption," that enhances precision in such measurements.
