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Updated: Jan 28, 2026

Precision Milling of Carbon Nanotube Forests Using Low Pressure Scanning Electron Microscopy
Published on: February 5, 2017
Electronic control of H+ current in a bioprotonic device with carbon nanotube porins
Zahra Hemmatian1, Ramya H Tunuguntla2, Aleksandr Noy2,3
1Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, CA, United States of America.
Abstract:
Hybrid biotic abiotic devices can be used to interface electronics with biological systems for novel therapies or to increase device functionality beyond silicon. Many strategies exist to merge the electronic and biological worlds, one dominated by electrons and holes as charge carriers, the other by ions. In the biological world, lipid bilayers and ion channels are essential to compartmentalize the cell machinery and regulate ionic fluxes across the cell membrane. Here, we demonstrate a bioelectronic device in which a lipid bilayer supported on H+-conducting Pd/PdHx contacts contains carbon nanotubes porin (CNTP) channels. This bioelectronic device uses CNTPs to control of H+ flow across the lipid bilayer with a voltage applied to the Pd/PdHx contacts. Potential applications of these devices include local pH sensing and control.
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