A novel carbon dot/polyacrylamide composite hydrogel film for reversible detection of the antibacterial drug ornidazole. Issue 37 (29th June 2021)

• Record Type: Journal Article
• Authors: Wu, Weizhen; Wu, Xiaoyi; He, Miao; Yuan, Xiaolin; Lai, Jiaping; Sun, Hui
• Is Part Of: RSC advances. Volume 11:Issue 37(2021)
• Page Start: 22993
• Page End: 23001
• Publication Date: 2021-06-29
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d1ra01478a
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A novel carbon dot/polyacrylamide composite hydrogel film with stable blue fluorescence performance was fabricated by merging a hydrogel film and carbon dots, which was used for highly selective and quantitative detection of ONZ in real samples. Abstract : A carbon dot/polyacrylamide (CDs/PAM) composite hydrogel film with stable fluorescence performance was fabricated by merging a hydrogel film and carbon dots (CDs) with blue fluorescence, which were prepared by hydrothermal synthesis using anhydrous citric acid and acrylamide as carbon sources. The obtained CDs/PAM composite hydrogel film exhibited a good fluorescence quenching effect on ornidazole (ONZ), and can be used for the quantitative detection of ONZ. In the ONZ concentration range of 5–60 μM, a good linear relationship between the fluorescence quenching efficiency of the CDs/PAM composite hydrogel film and the concentration of ONZ solution was obtained with a low detection limit of 2.35 μM. In addition, the detection system has good selectivity and strong anti-interference capacity, and can be used in repeated cycles for detection.