Please use this identifier to cite or link to this item:
|Title:||Graphene quantum dots modified with adenine for efficient two-photon bioimaging and white light-activated antibacteria||Authors:||Luo, Zhimin
Yeow, Edwin Kok Lee
|Keywords:||Science::Physics||Issue Date:||2018||Source:||Luo, Z., Yang, D., Yang, C., Wu, X., Hu, Y., Zhang, Y., . . . Wang, L. (2018). Graphene quantum dots modified with adenine for efficient two-photon bioimaging and white light-activated antibacteria. Applied Surface Science, 434, 155-162. doi:10.1016/j.apsusc.2017.10.121||Journal:||Applied Surface Science||Abstract:||A simple two-step microwave-assisted method was developed for the preparation of adenine-modified graphene quantum dots (A-GQDs) with striking fluorescence properties. The prepared A-GQDs with the lateral size of 3–5 nm and single- to few-layer thickness exhibit intense fluorescence with a quantum yield of 21.63% (excited at 350 nm) and an average lifetime of 4.47 ns. The A-GQDs are biocompatible and present two-photon green fluorescence, which render them suitable for two-photon fluorescent cell imaging. More interestingly, we demonstrate for the first time that the A-GQDs also possess white light-activated antibacterial property. Due to their excellent photoluminescence performance and ease of biological conjugation, A-GQDs can be envisioned as an emerging role for many multifunctional biomedical applications.||URI:||https://hdl.handle.net/10356/142182||ISSN:||0169-4332||DOI:||10.1016/j.apsusc.2017.10.121||Rights:||© 2017 Elsevier B.V. All rights reserved.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||SPMS Journal Articles|
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.