Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session D13: Industrial Microelectronics, Manufacturing, and Nanotechnology
3:00 PM–5:48 PM,
Monday, March 4, 2024
Room: M100D
Sponsoring
Unit:
FIAP
Chair: Andrés Cook, University of Chicago
Abstract: D13.00014 : Novel bioelectronic interface achieved by coupling an integrated circuit with bacterial-flagellar-motor-rotation
5:36 PM–5:48 PM
Presenter:
Amritha Janardanan
(University of Edinburgh)
Authors:
Amritha Janardanan
(University of Edinburgh)
Soner Sonmezoglu
(University of California, Berkeley)
Stefano Sonedda
(University of California, Berkeley)
James Flewellen
(University of Edinburgh)
Michel Maharbiz
(University of California, Berkeley)
Teuta Pilizota
(University of Edinburgh)
Our bioelectronic transducer is based on a single bacterium with a rotating motor attached close to a set of micron-sized electrodes, which is then probed with a high-frequency voltage to measure the impedance change due to the rotating flagella. The frequency of impedance changes we obtain coincides with the speed of rotation seen optically. To assist the liquid delivery to the electrodes and the IC, whose area is roughly the size of mm2, we use a two-layer microfluidics channel with customised geometry. The technology has the potential to revolutionise whole-cell biosensors and their application, because it offers electrical readout, while at the same time bioengineering of whole cells promises to significantly expedite the redesign for sensing of novel analytes.
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