One minute synthesis of green fluorescent copper nanocluster: The preparation of smartphone aided paper-based kit for on-site monitoring of nanomolar level mercury and sulfide ions in environmental samples

Maruthupandi, Muniyandi; Thiruppathi, Dharmaraj; Vasimalai, N.

doi:10.1016/j.jhazmat.2020.122294

Cited by 66 publications

(27 citation statements)

References 58 publications

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“…In the field of environmental monitoring, FL was applied on detection of metal ions [155][156][157][158][159][160][161][162], anion [163][164][165], gas [155], and organic compounds [166][167][168]. Liu [155] has reported a FL probe on μPads with carbazole for the detection of Cu 2+ and gaseous H 2 S. In 2019, a paper-based platform was established [157] using a hand-held UV lamp as an excitation resource.…”

Section: Environmental Monitoringmentioning

confidence: 99%

Recent Advances and Applications in Paper-Based Devices for Point-of-Care Testing

Hou

Guo

et al. 2022

J. Anal. Test.

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Point-of-care testing (POCT), as a portable and user-friendly technology, can obtain accurate test results immediately at the sampling point. Nowadays, microfluidic paper-based analysis devices (μPads) have attracted the eye of the public and accelerated the development of POCT. A variety of detection methods are combined with μPads to realize precise, rapid and sensitive POCT. This article mainly introduced the development of electrochemistry and optical detection methods on μPads for POCT and their applications on disease analysis, environmental monitoring and food control in the past 5 years. Finally, the challenges and future development prospects of μPads for POCT were discussed.

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Section: Environmental Monitoringmentioning

confidence: 99%

Recent Advances and Applications in Paper-Based Devices for Point-of-Care Testing

Hou

Guo

et al. 2022

J. Anal. Test.

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“…There is indeed a concern that most environmental inspection assays could not meet outdoor onsite detection due to the requirements of complicated instruments and a relative long detection time [ 73 ]. With properties of low cost, easy operation, great portability, and easy disposal, paper-based sensors were found reliable to detect carbon dioxide [ 33 ], airborne particulate [ 74 ], volatile organic compounds [ 75 ] in the air, heavy metals [ 76 ], phosphates [ 77 ], inorganic element ions [ 78 , 79 , 80 ], nitrite [ 81 ], and nicotine [ 82 ] in the water.…”

Section: Paper-based Sensors For Environmental Quality Inspectionmentioning

confidence: 99%

Hospitals and Laboratories on Paper-Based Sensors: A Mini Review

Zhang

Xia

Feng

et al. 2021

Sensors

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With characters of low cost, portability, easy disposal, and high accuracy, as well as bulky reduced laboratory equipment, paper-based sensors are getting increasing attention for reliable indoor/outdoor onsite detection with nonexpert operation. They have become powerful analysis tools in trace detection with ultra-low detection limits and extremely high accuracy, resulting in their great popularity in medical detection, environmental inspection, and other applications. Herein, we summarize and generalize the recently reported paper-based sensors based on their application for mechanics, biomolecules, food safety, and environmental inspection. Based on the biological, physical, and chemical analytes-sensitive electrical or optical signals, extensive detections of a large number of factors such as humidity, pressure, nucleic acid, protein, sugar, biomarkers, metal ions, and organic/inorganic chemical substances have been reported via paper-based sensors. Challenges faced by the current paper-based sensors from the fundamental problems and practical applications are subsequently analyzed; thus, the future directions of paper-based sensors are specified for their rapid handheld testing.

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“…In the real sample analysis, this biosensor was found to be a reliable and feasible analytical method. An instant-response and facile analysis platform targeting Hg 2+ and S 2− ions was established through incorporating copper nanoclusters with 1-Thio-β-Dglucose as a capping ligand via ultrasonication, the synthesis of which could be completed in as fast as one minute [ 73 ]. As shown in Figure 3 b, the as-synthesized TG-Cu NCs demonstrated the emission maximum at 430 nm, and through fluorescence quenching, this probe is able to detect Hg 2+ and S 2− ions with very low detection limits at 1.7 and 1.02 nM, respectively.…”

Section: Sensing Applications Based On Cu Ncsmentioning

confidence: 99%

Synthesis of Copper Nanocluster and Its Application in Pollutant Analysis

et al. 2021

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Copper nanoclusters (Cu NCs) with their inherent optical and chemical advantages have gained increasing attention as a kind of novel material that possesses great potential, primarily in the use of contaminants sensing and bio-imaging. With a focus on environmental safety, this article comprehensively reviews the recent advances of Cu NCs in the application of various contaminants, including pesticide residues, heavy metal ions, sulfide ions and nitroaromatics. The common preparation methods and sensing mechanisms are summarized. The typical high-quality sensing probes based on Cu NCs towards various target contaminants are presented; additionally, the challenges and future perspectives in the development and application of Cu NCs in monitoring and analyzing environmental pollutants are discussed.

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One minute synthesis of green fluorescent copper nanocluster: The preparation of smartphone aided paper-based kit for on-site monitoring of nanomolar level mercury and sulfide ions in environmental samples

Cited by 66 publications

References 58 publications

Recent Advances and Applications in Paper-Based Devices for Point-of-Care Testing

Recent Advances and Applications in Paper-Based Devices for Point-of-Care Testing

Hospitals and Laboratories on Paper-Based Sensors: A Mini Review

Synthesis of Copper Nanocluster and Its Application in Pollutant Analysis

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