A ratiometric fluorescent sensor based on metalloenzyme mimics for detecting organophosphorus pesticides

Yang, Yayu; Lei, Xiangmin; Liu, Borui; Liu, Haochi; Chen, Jianan; Fang, Guozhen; Liu, Jifeng; Wang, Shuo

doi:10.1016/j.snb.2022.133031

Cited by 15 publications

(1 citation statement)

References 55 publications

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“…As such, they are widely used in biomedicine [ 4 , 5 ], blood detection [ 6 ], biochemical detection [ 7 ], environmental monitoring [ 8 ], food safety [ 9 ] and other fields. In recent years, micro–nano scale biosensors have become a research hotspot in the field of biosensors, and many optical biosensor technologies have attracted wide attention, such as fluorescent [ 10 ], colorimetric [ 11 ], optical fiber [ 12 ], evanescent wave photonics [ 13 ], etc. In addition, due to the continuous pursuit of high sensitivity and the simple structure of the sensor, many optical sensor structures have been proposed and studied deeply.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity-Tunable Terahertz Liquid/Gas Biosensor Based on Surface Plasmon Resonance with Dirac Semimetal

Ren

Tang

et al. 2023

Sensors

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In this paper, we study the sensitivity-tunable terahertz (THz) liquid/gas biosensor in a coupling prism–three-dimensional Dirac semimetal (3D DSM) multilayer structure. The high sensitivity of the biosensor originates from the sharp reflected peak caused by surface plasmon resonance (SPR) mode. This structure achieves the tunability of sensitivity due to the fact that the reflectance could be modulated by the Fermi energy of 3D DSM. Besides, it is found that the sensitivity curve depends heavily on the structural parameters of 3D DSM. After parameter optimization, we obtained sensitivity over 100°/RIU for liquid biosensor. We believe this simple structure provides a reference idea for realizing high sensitivity and a tunable biosensor device.

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Section: Introductionmentioning

confidence: 99%

Sensitivity-Tunable Terahertz Liquid/Gas Biosensor Based on Surface Plasmon Resonance with Dirac Semimetal

Ren

Tang

et al. 2023

Sensors

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Imidazolium‐decorated Bis‐cyanostilbene Macrocycle: An Effect Fluorescence Sensor for Pesticide Starane

Wu,

Lin,

Zheng

et al. 2024

Chemistry An Asian Journal

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Fluorescence sensors for complicated molecules such as pesticides were paid much attention lately due to the merits of simple operation, high sensitivity and selectivity, and in‐situ detection. In this work, a novel fluorescent sensor for pesticide starane was prepared based on imidazolium‐decorated bis‐cyanostilbene macrocycle (IBM). IBM exhibited the obvious “turn‐on” fluorescence change from dark blue‐green to bright blue after sensing starane with the high sensing selectivity among 28 kinds of guests. The detecting limitation was as low as 0.011 μM, which was the lowest one in literatures. The sensing mechanism was confirmed as that starane was located in cavity of IBM based on the molecular interaction of multiple hydrogen bonds, π‐π stacking and hydrophobic interaction. The application experiments suggested that starane was examined well on test paper with good selectivity and was quantitatively detected in water samples, implying the good real‐time and in‐situ application potential for IBM on sensing starane in real environment and daily life.

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The sequence-dependent morphology of self-assembly peptides after binding with organophosphorus nerve agent VX

Lei,

Gan,

Chen

et al. 2024

Nano Res.

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A ratiometric fluorescent sensor based on metalloenzyme mimics for detecting organophosphorus pesticides

Cited by 15 publications

References 55 publications

Sensitivity-Tunable Terahertz Liquid/Gas Biosensor Based on Surface Plasmon Resonance with Dirac Semimetal

Sensitivity-Tunable Terahertz Liquid/Gas Biosensor Based on Surface Plasmon Resonance with Dirac Semimetal

Imidazolium‐decorated Bis‐cyanostilbene Macrocycle: An Effect Fluorescence Sensor for Pesticide Starane

The sequence-dependent morphology of self-assembly peptides after binding with organophosphorus nerve agent VX

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