Cylindrical nanocavity and nanowire electrodes for redox cycle dopamine sensing: design, fabrication, and characterization

Phillip T. Hankins; Hargsoon Yoon; Vijay K. Varadan

doi:10.1117/12.717665

11 April 2007 Cylindrical nanocavity and nanowire electrodes for redox cycle dopamine sensing: design, fabrication, and characterization

Phillip T. Hankins, Hargsoon Yoon, Vijay K. Varadan

Author Affiliations +

Proceedings Volume 6528, Nanosensors, Microsensors, and Biosensors and Systems 2007; 65281J (2007) https://doi.org/10.1117/12.717665
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

Abstract

We investigated the use of a three dimensional, cylindrical nanocavity structure with two working electrodes for use in dopamine sensing using redox cycling. This method of dopamine detection has been an active area of research for many years, with sensor designs developing to smaller and smaller sizes, as detection limits approach those needed for an in vivo dopamine detector. Toward that end, the nanocavity structure, based around a field of vertically oriented nanowires, was conceived, fabricated, and tested for feasibility. Each nanowire serves as one of the working electrodes, while the second is formed as a semi-enclosing cylindrical shell, with an inter-electrode spacing of .2um.

Citation Download Citation

Phillip T. Hankins, Hargsoon Yoon, and Vijay K. Varadan "Cylindrical nanocavity and nanowire electrodes for redox cycle dopamine sensing: design, fabrication, and characterization", Proc. SPIE 6528, Nanosensors, Microsensors, and Biosensors and Systems 2007, 65281J (11 April 2007); https://doi.org/10.1117/12.717665

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