Integration of plasmonics and electronics for dynamic trapping and sensing of biomolecules

Daehan Yoo, Avijit Barik, Fernando de León-Pérez, Daniel A. Mohr, Matthew Pelton, Luis Martín-Moreno, Sang Hyun Oh

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

Abstract

On-chip integration of plasmonics and dielectrophoresis can provide a promising route towards multi-functional biosensors. Here we present a novel 10-nm-split-trench resonator that combines a high-Q resonant plasmonic biosensor with gold nanogap electrodes. The electrically biased trench resonator can attract or repel analytes via dielectrophoretic forces created from a 10-nm gap while detecting them in a label-free manner via surface plasmon fields inside the trench. As a result, the plasmonic electronic biosensor enables the dynamic and low-voltage detection of nanoparticles and proteins at low concentrations.

Original languageEnglish (US)
Title of host publicationMicroTAS 2020 - 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences
PublisherChemical and Biological Microsystems Society
Pages615-616
Number of pages2
ISBN (Electronic)9781733419017
StatePublished - 2020
Event24th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2020 - Virtual, Online
Duration: Oct 4 2020Oct 9 2020

Publication series

NameMicroTAS 2020 - 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences

Conference

Conference24th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2020
CityVirtual, Online
Period10/4/2010/9/20

Bibliographical note

Funding Information:
D.Y. and S-H.O. acknowledge support from the National Science Foundation (NSF ECCS 1809723 and ECCS 1809240). F.dL.P. and L.M.M. acknowledge financial support from Spanish Ministry of Economy and Competitivity through projects MAT2017-88358-C3-1-R and MAT2017-88358-C3-2-R and the Aragón Government project Q-MAD. S-H.O. further acknowledges support from the Sanford P. Bordeau Endowed Chair at the University of Minnesota.

Publisher Copyright:
© 2020 CBMS-0001

Keywords

  • Atomic layer deposition
  • Dielectrophoresis
  • Dynamic mass-transport
  • Plasmonics
  • Trapping

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