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Reactions at nanoparticle surfaces are influenced by a wide variety of factors: the substrate, the environment, the nanoparticle shape/size, the presence/absence of surfactants on the surface, the identity of any molecular analytes, and beyond. We are interested in understanding how these factors impact reactivity in both chemical and electrochemical environments, looking at both reactions involving molecules as well as the nanoparticles themselves.
Representative publications
Representative publications
K.L. Vernon, T. Pungsrisai, O.J. Wahab, S.E. Alden, Y. Zhong, M-H. Choi, E. Verma, A.K. Bentley, K.O. Bailey, S.E. Skrabalak, X. Ye, K.A. Willets, L.A. Baker. “Optically Transparent Carbon Electrodes for Single Entity Electrochemistry.” ACS Electrochemistry. 1, 93 (2025).
V. Sundaresan, A.R. Cutri, J. Metro, C.S. Madukoma, J.D. Shrout, A.J. Hoffman, K.A. Willets, P.W. Bohn “Potential dependent spectroelectrochemistry of electrofluorogenic dyes on indium‐tin oxide.” Electrochemical science advances. 2, e2100094 (2022).
N.Y. Molina, T. Pungsrisai, Z.J. O’Dell, B. Paranzino, K.A. Willets. “The Hidden Role of the Supporting Electrode for Creating Heterogeneity in Single Entity Electrochemistry.” ChemElectroChem. 9, e202200245 (2022).
K.A. Willets. “Probing nanoscale interfaces with electrochemical surface-enhanced Raman scattering.” Curr. Opin. Electrochem. 13, 18 (2019).
V. Sundaresan, J.W. Monaghan, K.A. Willets. “Monitoring Simultaneous Electrochemical Reactions with Single Particle Imaging.” Invited contribution to a special themed issue on Single Entity Electrochemistry. ChemElectroChem. 5, 3052 (2018).
V. Sundaresan, J.W. Monaghan, K.A. Willets. "Visualizing the Effect of Partial Oxide Formation on Single Silver Nanoparticle Electrodissolution." J. Phys. Chem. C. 122, 3138 (2018). ACS Editors’ Choice.
S. Zaleski, M.F. Cardinal, D. Chulhai, A.J Wilson, K.A. Willets, L. Jensen, R.P. Van Duyne. “Towards Monitoring Electrochemical Reactions with Dual-wavelength SERS: Characterization of R6G Neutral Radical Species and Covalent Tethering of R6G to Silver Nanoparticles.” J. Phys. Chem. C. 120, 24982 (2016).
A.J. Wilson and K.A. Willets. “Unforeseen distance-dependent SERS spectro-electrochemistry from surface-tethered Nile Blue: the role of molecular orientation.” Analyst. 141, 5144 (2016).
A.J. Wilson, N.Y. Molina, K.A. Willets. “Modification of the electrochemical properties of Nile Blue through covalent attachment to gold as revealed by electrochemistry and SERS.” J. Phys. Chem. C. 120, 21091 (2016).
A.J. Wilson, K. Marchuk, K.A. Willets. “Imaging electrogenerated chemiluminescence at single gold nanowire electrodes.” Nano Lett. 15, 6100 (2015).
C. Renault, K. Marchuk, H.S. Ahn, E.J. Titus, J. Kim, K.A. Willets, A.J. Bard. “Observation of nanometer-sized electro-active defects in insulating layers by fluorescence microscopy and electrochemistry.” Anal Chem. 87, 5730 (2015).
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