利用 PET 机制高效检测氟虫腈的新型自组装螺环纳米荧光探针。

IF 4.3 2区化学 Q1 SPECTROSCOPY Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Pub Date : 2024-11-06 DOI:10.1016/j.saa.2024.125407

Li Xue Yang , Kaiyue Song , Rong Wang , Yue Sun , Xiaoxia Sun , Yu Hu , Beibei Yu

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引用次数: 0

摘要

通过铃木反应合成了一种新型螺手性化合物 S-SPINOL-Y1（S-6,6'-双（噻吩-2-基）-2,2', 3,3'-四氢-1,1'-螺双[茚]-7,7'-二醇），并在乙醇溶液中自组装成纳米球。通过改变乙醇溶剂的浓度，可以形成纳米或微米级的囊泡。由此产生的纳米探针通过光诱导电子转移效应（PET 机制）快速有效地识别了氟虫腈（FIP），完全的荧光淬灭证明了这一点。同时，螺旋手性 S-SPINOL-Y1 和 FIP 通过共价键和分子间氢键在乙醇溶液中共同组装成脉络状纳米管。

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Novel self-assembled spirochiral nanofluorescent probe for fipronil detection efficiently by PET mechanism

A novel spirochiral compound S-SPINOL-Y1 (S-6,6′-bis (thiophen-2-yl)-2,2′, 3,3′-tetrahydro-1,1′-spirobis[indinee]-7,7′-diol) was synthesized via a Suzuki reaction and self-assembled into nanospheres in ethanol solution. Nano or micron vesicles could be formed by changing the concentration of ethanol solvent. The resulting nanoprobe demonstrated rapid and effective recognition of fipronil (FIP) through the photoinduced electron transfer effect (PET mechanism), as evidenced by complete fluorescence quenching. Concurrently, the spiral chiral S-SPINOL-Y1 and FIP co-assembled into vein-like nanotubes within the ethanol solution by covalent bonding and intermolecular hydrogen bonding.

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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.