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 language||English (US)|
|Title of host publication||MicroTAS 2020 - 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences|
|Publisher||Chemical and Biological Microsystems Society|
|Number of pages||2|
|State||Published - 2020|
|Event||24th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2020 - Virtual, Online|
Duration: Oct 4 2020 → Oct 9 2020
|Name||MicroTAS 2020 - 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences|
|Conference||24th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2020|
|Period||10/4/20 → 10/9/20|
Bibliographical noteFunding 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.
- Atomic layer deposition
- Dynamic mass-transport