A novel fluorimetric sensing platform for highly sensitive detection of organophosphorus pesticides by using egg white-encapsulated gold nanoclusters

Yan, Xu; Li, Hongxia; Hu, Tianyu; Su, Xingguang

doi:10.1016/j.bios.2016.11.058

Cited by 143 publications

(35 citation statements)

References 41 publications

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“…In 2017, Yan et al developed a fluorescence method for the quantitative detection of OPs via TYR enzyme-controlled quenching of gold nanoclusters (AuNCs). With the presence of OPs, TYR activity was inhibited, resulting in the fluorescence recovery of AuNCs [ 133 ].…”

Section: Various Classes Of Insecticides Detection By Optical Sensorsmentioning

confidence: 99%

Recent Advances on Detection of Insecticides Using Optical Sensors

Fauzi

Fen

Omar

et al. 2021

Sensors

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Insecticides are enormously important to industry requirements and market demands in agriculture. Despite their usefulness, these insecticides can pose a dangerous risk to the safety of food, environment and all living things through various mechanisms of action. Concern about the environmental impact of repeated use of insecticides has prompted many researchers to develop rapid, economical, uncomplicated and user-friendly analytical method for the detection of insecticides. In this regards, optical sensors are considered as favorable methods for insecticides analysis because of their special features including rapid detection time, low cost, easy to use and high selectivity and sensitivity. In this review, current progresses of incorporation between recognition elements and optical sensors for insecticide detection are discussed and evaluated well, by categorizing it based on insecticide chemical classes, including the range of detection and limit of detection. Additionally, this review aims to provide powerful insights to researchers for the future development of optical sensors in the detection of insecticides.

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Section: Various Classes Of Insecticides Detection By Optical Sensorsmentioning

confidence: 99%

Recent Advances on Detection of Insecticides Using Optical Sensors

Fauzi

Fen

Omar

et al. 2021

Sensors

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“…Tseng's group presented a novel approach for preparing highly fluorescent Au 8 NCs and Au 25 NCs by using lysozyme type VI (Lys VI) at pH 3 and pH 12, [43] respectively [49]. Inspired by this finding, researchers try to explore other proteins as efficient bioscaffolds for synthesizing AuNCs such as insulin [50], transferrin-family proteins [51,52], horseradish peroxidase [53], pepsin [54], denatured BSA [55], ribonuclease A [56], trypsin [57], DNase I [58], ovalbumin [59], and egg white [60].…”

Section: Proteinsmentioning

confidence: 99%

“…The fluorescent BSA-AuNCs have been used for the rapid detection of drug molecules including vitamin B12 [120], methotrexate [121], and organophosphorus pesticides (OPs) [60]. For example, an efficient fluorimetric sensing platform was constructed for sensitive detection of OPs by tyrosinase (TYR) enzyme-controlled quenching of AuNCs [60]. In the process of synthesizing AuNCs, chicken egg white (CEW) was used as template and stabilizer.…”

Section: Detection Of Drug Moleculesmentioning

confidence: 99%

“…Shang et al developed a special route based on ultrasmall fluorescent AuNCs for detecting intracellular temperature [125]. This sensor could be seen as an excellent nanothermometer with great [60] fluorescence lifetime and emission intensity for sensitive detection of temperature changes. This excellent performance is very useful for temperature measurement in biological systems by using fluorescence imaging.…”

Section: Ph and Temperaturementioning

confidence: 99%

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Fluorescent Gold Nanoclusters: Promising Fluorescent Probes for Sensors and Bioimaging

Wang

Zhu

2017

J. Anal. Test.

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Fluorescent gold nanoclusters (AuNCs) have recently emerged as a novel kind of promising fluorescent probes for high-performance sensors and bioimaging because of their ultrasmall size (\3 nm), strong luminescence, good photostability, and excellent biocompatibility. Over the past decade, we have witnessed growing popularity of AuNCs in analytical applications and enormous efforts have been devoted to their development. In this review, we provide an update on recent advances in the development of AuNCs in terms of physicochemical properties, synthesis strategies, and bioapplications. The optical, electrochemical, catalytical, and solvatochromic properties of AuNCs are first summarized, which are followed by different ligands or template-assisted controllable synthetic methods. Afterwards functionalization of AuNCs is described in terms of ligand exchange, bioconjugation, and noncovalent interaction. We then focus on the applications of AuNCs as fluorescent probes for detection of metal ions, inorganic anions, small biomolecules, proteins, nucleic acids, drug molecules, pH, and temperature. We also summarize the usage of metal NCs in cellular and in vivo targeting and imaging. Finally, we conclude with a brief look at the future challenges and prospects of the development of AuNCs.

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“…When photons radiated to NPs, the free electrons in their conduction band began to oscillate collectively with the same frequency of incident light. This phenomenon was called surface plasmon resonance (SPR), which depended on the size of the particles, the shape, and the refractive index of crystallite atmosphere media [1][2][3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Improved albumin detection in bovine serum albumin concentration by Au/Ag nanocrystallites

2020

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In the present work, we had used two methods (solvothermal and seed growth methods) to sense albumin concentration based on the optical and plasmonic characteristics of Au/Ag nanocrystallites and their interaction with bovine serum albumin (BSA). They were studied using UV-Vis spectroscopy, transmission electron microscopy (TEM) techniques. The obtained results indicated that the good interactions between nanocrystallites and BSA happen. With the help of changes in plasmonic peaks and comparison of TEM images before and after the interaction for different concentrations of albumin samples, we had obtained a qualitative method of identifying albumin (down to 0.2 mg/ml) concentration.

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A novel fluorimetric sensing platform for highly sensitive detection of organophosphorus pesticides by using egg white-encapsulated gold nanoclusters

Cited by 143 publications

References 41 publications

Recent Advances on Detection of Insecticides Using Optical Sensors

Recent Advances on Detection of Insecticides Using Optical Sensors

Fluorescent Gold Nanoclusters: Promising Fluorescent Probes for Sensors and Bioimaging

Improved albumin detection in bovine serum albumin concentration by Au/Ag nanocrystallites

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