Synthesis of a water-stable fluorescence CsPbBr3 perovskite by dual-supersaturated recrystallization method and tuning the fluorescence spectrum for selective detection of folic acid

荧光 化学 检出限 水溶液 过饱和度 无机化学 卤化物 选择性 光化学 材料科学 催化作用 物理化学 有机化学 色谱法 物理 量子力学
作者
Jinzhou Liu,Yan-Bo Fu,Ni Yang,Qiu-Lin Wen,Rong Sheng Li,Jian Ling,Qiue Cao
出处
期刊:Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy [Elsevier]
卷期号:306: 123586-123586
标识
DOI:10.1016/j.saa.2023.123586
摘要

As an excellent fluorescent material, cesium lead halide perovskite nanocrystals (PNCs) is rarely used for analytical purposes because the PNCs are unstable in polar solvents, especially water. Developing a new synthesis method to prepare water-stable PNCs makes it promising for the detection of analytes in aqueous solutions. Herein, by using the solubility difference of the precursors in different solvents, we successfully synthesized water-stable CsPbBr3 PNCs by a dual-supersaturated recrystallization method at room temperature. We also found that the fluorescence of the as-prepared CsPbBr3 PNCs could be quenched by some small organic molecules, such as folic acid (FA) and dopamine (DA). By using a chloride-induced anion exchange reaction method, the fluorescence emission peak of the CsPbBr3 PNCs could be tuned from 518 to 418 nm and the emission color changed from green to blue. The blue emission chloride-exchanged PNCs have a good selectivity for only FA and a good linear relationship is established between the fluorescence quenching rate of the PNCs and concentration of FA from 10.0 to 140.0 μM, with a limit of detection (LOD) of 0.9 μM. This work expanded the applications of PNCs in the field of analytical chemistry and also proposed a new strategy for improving selectivity by tuning the emission spectrum of a fluorescent probe.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
Zsc给Zsc的求助进行了留言
刚刚
2秒前
王木木完成签到,获得积分10
3秒前
刻苦的白梅完成签到,获得积分20
3秒前
7秒前
8秒前
星辰大海应助Fe_001采纳,获得20
8秒前
李健的小迷弟应助lobster采纳,获得10
9秒前
刘天宇完成签到 ,获得积分10
9秒前
9秒前
9秒前
11秒前
1111chen发布了新的文献求助10
12秒前
13秒前
13秒前
赘婿应助端庄铃铛采纳,获得10
13秒前
13秒前
16秒前
17秒前
18秒前
benben应助Sunny采纳,获得10
18秒前
基莲发布了新的文献求助10
19秒前
21秒前
22秒前
23秒前
24秒前
顾矜应助俊逸的翅膀采纳,获得10
25秒前
咚咚发布了新的文献求助10
28秒前
骨外6点尹医生完成签到,获得积分20
28秒前
小蘑菇应助陶醉觅夏采纳,获得10
29秒前
30秒前
31秒前
英俊的铭应助默然的歌采纳,获得10
31秒前
浙江嘉兴完成签到,获得积分10
35秒前
默然的歌发布了新的文献求助10
35秒前
基莲发布了新的文献求助10
37秒前
38秒前
风趣过客完成签到,获得积分10
40秒前
Akim应助阿木采纳,获得10
40秒前
41秒前
高分求助中
Manual of Clinical Microbiology, 4 Volume Set (ASM Books) 13th Edition 1000
Teaching Social and Emotional Learning in Physical Education 900
Chinese-English Translation Lexicon Version 3.0 500
Electronic Structure Calculations and Structure-Property Relationships on Aromatic Nitro Compounds 500
マンネンタケ科植物由来メロテルペノイド類の網羅的全合成/Collective Synthesis of Meroterpenoids Derived from Ganoderma Family 500
[Lambert-Eaton syndrome without calcium channel autoantibodies] 440
Plesiosaur extinction cycles; events that mark the beginning, middle and end of the Cretaceous 400
热门求助领域 (近24小时)
化学 材料科学 医学 生物 有机化学 工程类 生物化学 纳米技术 物理 内科学 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 电极 光电子学 量子力学
热门帖子
关注 科研通微信公众号,转发送积分 2383210
求助须知:如何正确求助?哪些是违规求助? 2090193
关于积分的说明 5253793
捐赠科研通 1817185
什么是DOI,文献DOI怎么找? 906530
版权声明 559000
科研通“疑难数据库(出版商)”最低求助积分说明 484080