Hydrothermal synthesis of Auricularia auricula derived nitrogen, phosphorus-doped carbon dots and application in Ag(i) and 4-nitrophenol detection and bioimaging. Issue 17 (22nd April 2020)

• Record Type: Journal Article
• Authors: Tu, Yujiao; Wang, Suping; Yuan, Xiaotian; Song, Pengfei; Wei, Yunlin; Qin, Kunhao; Zhang, Qi; Ji, Xiuling
• Is Part Of: Analytical methods. Volume 12:Issue 17(2020)
• Page Start: 2237
• Page End: 2243
• Publication Date: 2020-04-22
• Subjects: Chemistry, Analytic -- Periodicals; Analytical biochemistry -- Periodicals; Chemical laboratories -- Standards -- Periodicals; 543.1905
• DOI: 10.1039/d0ay00316f
• Languages: English
• ISSNs: 1759-9660

Abstract

Abstract : Schematic of the synthetic route for fluorescent Aa N, P-CDs and their application in the detection of 4-NP and Ag(i ) and bioimaging. Abstract : Novel fluorescent nitrogen and phosphorus-doped carbon dots ( Aa N, P-CDs) derived from Auricularia auricula were successfully prepared via a simple hydrothermal method. The Aa N, P-CDs showed high selectivity and sensitivity in detection of 4-nitrophenol (4-NP) and Ag(i ) and good linear ranges of 4-NP (0–37.5 μM, R 2 = 0.9967) and Ag(i ) (0–25 μM, R 2 = 0.9934). The low detection limits were 198 nM and 74.35 nM, respectively. This showed that static quenching dominated in Ag(i ) quenching of the Aa N, P-CD fluorescence, while that of 4-NP was the inner filter effect. The Aa N, P-CDs were successfully used to detect 4-NP and Ag(i ) in real water and soil samples. Cell imaging indicated that Aa N, P-CDs showed low biotoxicity and good biocompatibility, which provided a new insight into bioimaging application and environmental pollutant detection.