Direct detection of localized modulation of ion...

Optics: measuring and testing – By light interference

Reexamination Certificate

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Reexamination Certificate

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07826060

ABSTRACT:
The present invention directly measures localized electrochemical processes on a planar electrode using differential interferometry. The ionic charge accumulation at the electrode-electrolyte interface may be directly measured by using differential interferometry as a function of magnitude and frequency (for example, 2-50 kHz) of an external potential applied on an electrode. Methods in accordance with the present invention probe the ion dynamics confined to the electrical double layer. An electric field is applied using a pure AC potential and a superposition of AC and DC-ramp potential to measure ion concentration and detect redox processes.

REFERENCES:
patent: 6052185 (2000-04-01), Banet et al.
patent: 6803777 (2004-10-01), Pfaff et al.
patent: 6812045 (2004-11-01), Nikoonahad et al.
patent: 7141429 (2006-11-01), Munson et al.
Denpo, K. et al. “Measurement of Concentration Profiles of Cu2+ Ion and H+ Ion near a Plane Vertical Cathode by Two-Wavelength Holographic Interferometry.” J. Electrochem. Soc., vol. 132, Issue 5, 1985, pp. 1145-1150.
Singh and Saraf, “Direct Measurement of Ion Accumulation at the Electrode Electrolyte Interface under an Oscillatory Electric Field,”J Phys Chem B, 2006, 110(25):12581-12587.
Maria Diaz-Gonzalez, et al. Recent Advances in Electrochemical Enzyme Immunoassays 2005 Electroanalysis. vol. 17 (No. 21), p. 1901-1918.
Lance S. Kuhn Biosensors: Blockbuster or Bomb? Electrochemical Biosensors for Diabetes Monitoring 1998 Interface. p. 26-31.
Chunhai Fan, et al. Electrochemical interrogation of conformational changes as a reagentless method for the sequence-specific detection of DNA 2003 PNAS. vol. 100 (No. 16), p. 9134-9137.
Yi Xiao, et al. Label-Free Electronic Detection of Thrombin in Blood Serum by Using an Aptamer-Based Sensor 2005 Angew. Chem. Int. Ed. 44, p. 5456-5459.
Eric Bakker, et al. Electrochemical Sensors 2006 Analytical Chemistry. vol. 78 (No. 12), p. 3965-3983.
Kagan Kerman, et al. Recent trends in electrochemical DNA biosensor technology 2004 Measurement Science and Technology. vol. 15, p. R1-R11.

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