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Scanning electrochemical microscopy in the 21st century.
- P. Sun, F. Laforge, M. Mirkin
- Chemistry, Medicine
- Physical chemistry chemical physics : PCCP
- 7 February 2007
The fundamentals of and recent advances in scanning electrochemical microscopy (SECM) are described. The focus is on applications of this method to studies of systems and processes of active current… Expand
Kinetics of electron-transfer reactions at nanoelectrodes.
The kinetics of several fast heterogeneous electron-transfer reactions were investigated by steady-state voltammetry at nanoelectrodes and scanning electrochemical microscopy (SECM). The disk-type,… Expand
Nanoelectrochemistry of mammalian cells
- P. Sun, F. Laforge, Thushara P. Abeyweera, S. Rotenberg, James Carpino, M. Mirkin
- Chemistry, Medicine
- Proceedings of the National Academy of Sciences
- 15 January 2008
There is a significant current interest in development of new techniques for direct characterization of the intracellular redox state and high-resolution imaging of living cells. We used… Expand
Structure and Behavior of Organic Analytical Reagents. Formation Constants of Transition Metal Complexes of 2-Hydroxypyridine-1-Oxide and 2-Mercaptopyridine-1-Oxide.
- P. Sun, Q. Fernaǹdo, H. Freiser
- Chemistry
- 1 December 1964
Electrochemistry of individual molecules in zeptoliter volumes.
Electrochemical experiments were carried out in a nanometer-sized cylindrical thin layer cell (TLC) formed by etching the surface of a disk-type platinum nanoelectrode (5- to 150-nm radius). Using… Expand
Scanning Electrochemical Microscopy with Gold Nanotips: The Effect of Electrode Material on Electron Transfer Rates
- J. Velmurugan, P. Sun, M. Mirkin
- Chemistry
- 8 January 2009
The disk-type, polished Au nanoelectrodes were prepared, characterized, and used as tips in the scanning electrochemical microscope (SECM). Kinetic parameters were measured for several rapid… Expand
Systematic study of the transfer of amino acids across the water/1,2-dichloroethane interface facilitated by dibenzo-18-crown-6
Facilitated ion transfer reactions of 20 amino acids with dibenzo-18-crown-6 (DB18C6) at the water/1,2-dichloroethane (W/DCE) interfaces supported at the tips of micro- and nano-pipets were… Expand
Scanning electrochemical microscopy with slightly recessed nanotips.
Slightly recessed nanoelectrodes were prepared by controlled etching of nanometer-sized, flat Pt electrodes. By using high-frequency (e.g., 2 MHz) ac voltage, the layer of Pt as thin as greater,… Expand
Fabrication of nanometer-sized electrodes and tips for scanning electrochemical microscopy.
- P. Sun, Zhaoxiang Zhang, J. Guo, Y. Shao
- Chemistry, Medicine
- Analytical chemistry
- 22 September 2001
A novel method for fabrication of nanometer-sized electrodes and tips suitable for scanning electrochemical microscopy (SECM) is reported. A fine etched Pt wire is coated with polyimide, which was… Expand
Observation of the marcus inverted region of electron transfer reactions at a liquid/liquid interface.
- P. Sun, Fei Li, +4 authors Y. Shao
- Chemistry, Medicine
- Journal of the American Chemical Society
- 19 July 2003
Scanning electrochemical microscopy was used to probe the influence of a driving force on the heterogeneous electron transfer (ET) processes at the externally polarized water/1,2-dichloroethane… Expand
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