Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/142182
Title: Graphene quantum dots modified with adenine for efficient two-photon bioimaging and white light-activated antibacteria
Authors: Luo, Zhimin
Yang, Dongliang
Yang, Chen
Wu, Xiangyang
Hu, Yanling
Zhang, Ying
Yuwen, Lihui
Yeow, Edwin Kok Lee
Weng, Lixing
Huang, Wei
Wang, Lianhui
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

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