112070 20230519145621.0 doi 10.1021/acsnano.0c10014 sideral 125654 ART-2021-125654 eng Yoo D. Plasmonic Split-Trench Resonator for Trapping and Sensing 2021 Access copy available to the general public Unrestricted On-chip integration of plasmonics and electronics can benefit a broad range of applications in biosensing, signal processing, and optoelectronics. A key requirement is a chip-scale manufacturing method. Here, we demonstrate a split-trench resonator platform that combines a high-quality-factor resonant plasmonic biosensor with radio frequency (RF) nanogap tweezers. The split-trench resonator can simultaneously serve as a dielectrophoretic trap and a nanoplasmonic sensor. Trapping is accomplished by applying an RF electrical bias across a 10 nm gap, thereby either attracting or repelling analytes. Trapped analytes are detected in a label-free manner using refractive-index sensing, enabled by interference between surface-plasmon standing waves in the trench and light transmitted through the gap. This active sample concentration mechanism enables detection of nanoparticles and proteins at a concentration as low as 10 pM. We can manufacture centimeter-long split-trench cavity resonators with high throughput via photolithography and atomic layer deposition, toward practical applications in biosensing, spectroscopy, and optoelectronics. © 2021 American Chemical Society. info:eu-repo/grantAgreement/ES/MINECO/MAT2017-88358-C3-1-R info:eu-repo/grantAgreement/ES/MINECO/MAT2017-88358-C3-2-R info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 18.027 2021 CHEMISTRY, MULTIDISCIPLINARY 13 / 180 = 0.072 2021 Q1 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 20 / 345 = 0.058 2021 Q1 T1 CHEMISTRY, PHYSICAL 12 / 165 = 0.073 2021 Q1 T1 NANOSCIENCE & NANOTECHNOLOGY 11 / 109 = 0.101 2021 Q1 T1 4.611 2021 Engineering (miscellaneous) 2021 Q1 Physics and Astronomy (miscellaneous) 2021 Q1 Materials Science (miscellaneous) 2021 Q1 24.3 2021 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Barik A. León-Pérez F. (orcid)0000-0003-0381-3448 Mohr D.A. Pelton M. Martín-Moreno L. (orcid)0000-0001-9273-8165 Oh S.-H. 15, 4 (2021), 6669-6677 ACS Nano ACS NANO 1936-0851 6572897 http://zaguan.unizar.es/record/112070/files/texto_completo.pdf Postprint 705346 http://zaguan.unizar.es/record/112070/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:112070 articulos driver 2023-05-18-16:16:01 ARTICLE