Facile one-pot synthesis of tannic acid-stabilized fluorescent copper nanoclusters and its application as sensing probes for chlortetracycline based on inner filter effect

Autor:	Yuyu Guo, Yi-ting Zhang, Yu-rui Hu, Shao-ke Chen, Xin-rui Han, Ming-zhu Guo, Shen Zhang
Rok vydání:	2022
Předmět:	Detection limit chemistry.chemical_compound Colloid and Surface Chemistry Quenching (fluorescence) Linear range Reducing agent Chemistry Tannic acid One-pot synthesis Ascorbic acid Fluorescence Nuclear chemistry
Zdroj:	Colloids and Surfaces A: Physicochemical and Engineering Aspects. 634:127962
ISSN:	0927-7757
DOI:	10.1016/j.colsurfa.2021.127962
Popis:	In this paper, a simple and one-pot synthetic strategy was established to prepare copper nanoclusters by using tannic acid as the template and ascorbic acid as the reducing agent. The tannic acid-capped copper nanoclusters (Cu NCs@TA) displayed excitation and emission peaks around 365 and 435 nm with fluorescence quantum yield of 9.8%. Based on the inner filter effect and static quenching mechanisms, the Cu NCs@TA was used to selectively and sensitively determine the chlortetracycline. Under the optimal detection conditions, the excellent linear range of 0.5-200 μM was obtained and the limit of detection (LOD) was gained as 0.084 μM. The satisfactory recoveries of 94.4%~103.1% in real bovine serum samples indicated that this platform could be employed in practical test of chlortetracycline.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4d099e8827467126ce62ed84ca4d1e04 https://doi.org/10.1016/j.colsurfa.2021.127962 Zobrazit plný text záznamu Full Text from ScienceDirect