Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 258, Issue -, Pages 172-183Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2017.11.044
Keywords
Mushroom; Carbon dot; Fluorescence sensor; Hg2+ ion detection; Bactericidal effect
Funding
- National Research Foundation of Korea (NRF) - Ministry of Education [NRF-2014R1A1A2A16049980, NRF-2016M2A2A6024480, NRF-2016R1D1A1B03930948]
Ask authors/readers for more resources
Herein, we present a sustainable solvent-free synthetic procedure to produce carbon nanodots from common edible mushrooms (Pleurotus spp.). The resulting mushroom carbon nanodots (MCDs) exhibit stable blue fluorescence with high quantum yield (25%). The MCDs are highly dispersible in water because of the enormous number of oxygen- and nitrogen-containing functional groups on the surface. The MCDs can be used as an effective fluorescent probe for label-free detection of Hg2+ ions (detection limit: 4.13 nM). To improve the sensitivity, dihydrolipoic acid was attached to the surface of MCDs, resulting in ultra-sensitivity in Hg2+ ion sensing, with a detection limit as low as 17.4 pM. In addition, the MCDs can be used for the labeling of bacteria and as a photoinduced bactericidal agent. Light irradiation of E. coli treated with MCDs showed excellent bactericidal activity relative to the control. These sustainable and affordable carbon materials are potentially compatible for monitoring toxic metals and as a potent visible-light-responsive bactericidal probe. (C) 2017 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available