Date on Master's Thesis/Doctoral Dissertation
12-2013
Document Type
Master's Thesis
Degree Name
M. Eng.
Department
Bioengineering
Committee Chair
Keynton, Robert S.
Author's Keywords
Bio MEMS; MEMS; Microelectrodes; Cardiac; Surface laplacian
Subject
Electrocardiography; Nanotechnology
Abstract
The work outlined in this thesis expanded on previous work to improve a thin-film microfabricated electrode array intended for cardiac electrophysiology studies. A thin layer of silver was added in between titanium and platinum electrical trace layers to reduce electrode resistance. A 200 nm layer of silver decreased electrode resistance by an order of magnitude. In addition, a new high quality signal conditioning board was developed using precision operational amplifiers from Texas Instruments. Both new sensor and board design were verified together through in vivo studies using rabbit, goat, and dog hearts.
Recommended Citation
Osborne, Christopher Hayward, "An improved thin-film microelectrode array and signal conditioning board for measuring cardiac surface potentials." (2013). Electronic Theses and Dissertations. Paper 1084.
https://doi.org/10.18297/etd/1084
