In today's research area it is extremely important to assemble nanomaterials into electric devices at the nanoscale level due to the rapid expansion of nanotechnology in various fields. Designing a nanohybrid composed of gold nanoparticles (AuNPs) and red-emitting carbon dots (CDs) can be used to develop a fluorescence lifetime imaging (FLIM) based logic gate that can respond to multiple input parameters. The AuNPs are conjugated to CDs surfaces through a strong covalent linkage between them. These fluorescence lifetimes-based logic gates could be the new way to overcome the limitation of fluorescence intensity-based logic gates. The Au-CDs nanohybrid shows significant fluorescence quenching of pristine CDs after conjugation of gold nanoparticles. This quenched fluorescence can be recovered back by using a proper recovering agent giving us a reversible logic output. This nanohybrid can be used to construct complex logic functions as the fluorescence logic output is independent of concentration and excitation source.
|Title of host publication||Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIX|
|Editors||Dror Fixler, Ewa M. Goldys, Sebastian Wachsmann-Hogiu|
|State||Published - 2022|
|Event||Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIX 2022 - Virtual, Online|
Duration: 20 Feb 2022 → 24 Feb 2022
|Name||Progress in Biomedical Optics and Imaging - Proceedings of SPIE|
|Conference||Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIX 2022|
|Period||20/02/22 → 24/02/22|
Bibliographical notePublisher Copyright:
Copyright © 2022 SPIE.
- Carbon dots
- fluorescence lifetime imaging (FLIM)
- gold nanoparticles
- nano logic gate