Department of Applied Chemistry, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China.
Luminescence. 2022 Feb;37(2):340-347. doi: 10.1002/bio.4176. Epub 2021 Dec 19.
Hydrothermal treatment of m-phenylenediamine and grape seed powder has been adopted to synthesize nitrogen-doped carbon quantum dots (N-CQDs). The prepared N-CQDs possessed outstanding optical properties and high quantum yield. Based on the combined effect of static quenching effect and inner filter effect of permanganate (MnO ) to N-CQDs and the redox reaction that occurred between MnO and l-ascorbic acid (l-AA), an 'off-on' fluorescence strategy with N-CQDs has been proposed for the detection of MnO and l-AA. The proposed fluorescent probe was fast, sensitive and selective to MnO and l-AA under mild conditions. In addition, the satisfactory results of the proposed strategy for the detection of MnO and l-AA in real samples indicated its practicability.
采用水热法处理间苯二胺和葡萄籽粉末合成了氮掺杂碳量子点（N-CQDs）。所制备的 N-CQDs 具有出色的光学性能和高量子产率。基于高锰酸盐（MnO ）对 N-CQDs 的静态猝灭效应和内滤效应的联合作用，以及 MnO 和 l-抗坏血酸（l-AA）之间发生的氧化还原反应，提出了一种基于 N-CQDs 的“关-开”荧光策略，用于检测 MnO 和 l-AA。在温和条件下，该荧光探针对 MnO 和 l-AA 的检测具有快速、灵敏和选择性。此外，该策略在实际样品中检测 MnO 和 l-AA 的令人满意的结果表明了其实用性。
