Fabrication and characterization of field effect reconfigurable nanofluidic ionic diodes

Towards digitally-programmed manipulation of biomolecules

Weihua Guan, Rong Fan, Mark A. Reed

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Analogous to a solid-state semiconductor diode for regulating the flow of electrons/holes to one preferential direction, nanofluidic diodes are being developed to achieve the rectified ionic transport. Such rectification effect is of great importance due to its relevance to biological ion channels. Moreover, ionic diodes, together with ionic transistors represent the key building blocks for ionic circuits, mimicking voltage-gated ion channels in a variety of biological systems. Several nanofluidic platforms based on nanopores and nanochannels were reported to produce ionic current rectification. Nevertheless, it has not been possible to change the predefined rectifying properties obtained by these approaches once the devices are made. We here report a field effect reconfigurable ionic diode (FERD) by asymmetrically modulating the cation/anion ratios along the nanochannel. A key feature of our device 1is that it allows the post-fabrication reconfiguration of the diode functions, such as the forward/reverse directions as well as the rectification degrees. These results may lead to the creation of reconfigurable ionic circuits, an ionic counterpart of the electronic field-programmable gate array (FPGA).

Original languageEnglish (US)
Title of host publication70th Device Research Conference, DRC 2012 - Conference Digest
Pages277-278
Number of pages2
DOIs
StatePublished - Oct 5 2012
Event70th Device Research Conference, DRC 2012 - University Park, PA, United States
Duration: Jun 18 2012Jun 20 2012

Other

Other70th Device Research Conference, DRC 2012
CountryUnited States
CityUniversity Park, PA
Period6/18/126/20/12

Fingerprint

Nanofluidics
Biomolecules
Diodes
Fabrication
Semiconductor diodes
Nanopores
Networks (circuits)
Ions
Biological systems
Field programmable gate arrays (FPGA)
Transistors
Negative ions
Positive ions
Electrons
Electric potential

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Guan, Weihua ; Fan, Rong ; Reed, Mark A. / Fabrication and characterization of field effect reconfigurable nanofluidic ionic diodes : Towards digitally-programmed manipulation of biomolecules. 70th Device Research Conference, DRC 2012 - Conference Digest. 2012. pp. 277-278
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abstract = "Analogous to a solid-state semiconductor diode for regulating the flow of electrons/holes to one preferential direction, nanofluidic diodes are being developed to achieve the rectified ionic transport. Such rectification effect is of great importance due to its relevance to biological ion channels. Moreover, ionic diodes, together with ionic transistors represent the key building blocks for ionic circuits, mimicking voltage-gated ion channels in a variety of biological systems. Several nanofluidic platforms based on nanopores and nanochannels were reported to produce ionic current rectification. Nevertheless, it has not been possible to change the predefined rectifying properties obtained by these approaches once the devices are made. We here report a field effect reconfigurable ionic diode (FERD) by asymmetrically modulating the cation/anion ratios along the nanochannel. A key feature of our device 1is that it allows the post-fabrication reconfiguration of the diode functions, such as the forward/reverse directions as well as the rectification degrees. These results may lead to the creation of reconfigurable ionic circuits, an ionic counterpart of the electronic field-programmable gate array (FPGA).",
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Guan, W, Fan, R & Reed, MA 2012, Fabrication and characterization of field effect reconfigurable nanofluidic ionic diodes: Towards digitally-programmed manipulation of biomolecules. in 70th Device Research Conference, DRC 2012 - Conference Digest., 6256993, pp. 277-278, 70th Device Research Conference, DRC 2012, University Park, PA, United States, 6/18/12. https://doi.org/10.1109/DRC.2012.6256993

Fabrication and characterization of field effect reconfigurable nanofluidic ionic diodes : Towards digitally-programmed manipulation of biomolecules. / Guan, Weihua; Fan, Rong; Reed, Mark A.

70th Device Research Conference, DRC 2012 - Conference Digest. 2012. p. 277-278 6256993.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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