A “turn-on” fluorescence sensor for hydroquinone detection based on BSA doped carbon dots (BSA@CDs) from crawfish shells

IF 4.3 2区化学 Q1 SPECTROSCOPY Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Pub Date : 2024-09-07 DOI:10.1016/j.saa.2024.125100

引用次数: 0

Abstract

By using crawfish shells as the precursor and hydrothermal synthesis, Bovine serum albumin doped carbon dots (BSA@CDs) were prepared without excessive chemical reagents. The relationship between the fluorescence properties of different BSA@CDs and BSA amount was investigated by various characterization techniques. When the amount of BSA added was 30 %, the prepared BSA@CDs’ quantum yield (QY) reached 25.01 %, which was the highest. Inner Filter Effect (IFE) suggested that Cr (VI) can selectively quench the fluorescence of BSA@CDs. Cr (VI) can be reduced to Cr (III) by Hydroquinone (HQ), thus recovering the fluorescence. Accordingly, using BSA@CDs as a probe, a “turn-on” fluorescence sensor applied in HQ determination was constructed. The linear range was 10–200 µmol/L and limit of detection (LOD) was 0.18 µmol/L. Further, it has been employed to the determination of HQ in both crawfish tail meat and aquaculture water with good performance.

Abstract Image

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

基于小龙虾壳中掺杂的 BSA 碳点（BSA@CDs）的对苯二酚检测荧光传感器

以小龙虾壳为前驱体，采用水热合成法，在不使用过量化学试剂的情况下制备出了掺杂牛血清白蛋白的碳点（BSA@CDs）。通过各种表征技术研究了不同 BSA@CDs 的荧光特性与 BSA 量之间的关系。当 BSA 的添加量为 30% 时，制备的 BSA@CDs 的量子产率（QY）达到 25.01%，是最高的。内滤效应（IFE）表明，六价铬可以选择性地淬灭 BSA@CDs 的荧光。六价铬可被对苯二酚（HQ）还原成三价铬，从而恢复荧光。因此，以 BSA@CDs 为探针，构建了一种应用于 HQ 检测的 "开启式 "荧光传感器。其线性范围为 10-200 µmol/L，检测限（LOD）为 0.18 µmol/L。此外，该方法还被用于小龙虾尾肉和养殖水体中 HQ 的测定，并取得了良好的效果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 物理-光谱学

CiteScore

8.40

自引率

11.40%

发文量

1364

审稿时长

40 days

期刊介绍： Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy (SAA) is an interdisciplinary journal which spans from basic to applied aspects of optical spectroscopy in chemistry, medicine, biology, and materials science. The journal publishes original scientific papers that feature high-quality spectroscopic data and analysis. From the broad range of optical spectroscopies, the emphasis is on electronic, vibrational or rotational spectra of molecules, rather than on spectroscopy based on magnetic moments. Criteria for publication in SAA are novelty, uniqueness, and outstanding quality. Routine applications of spectroscopic techniques and computational methods are not appropriate. Topics of particular interest of Spectrochimica Acta Part A include, but are not limited to: Spectroscopy and dynamics of bioanalytical, biomedical, environmental, and atmospheric sciences, Novel experimental techniques or instrumentation for molecular spectroscopy, Novel theoretical and computational methods, Novel applications in photochemistry and photobiology, Novel interpretational approaches as well as advances in data analysis based on electronic or vibrational spectroscopy.