Efficient “turn-on” nanosensor by dual emission-quenching mechanism of functionalized Se doped ZnO nanorods for mercury (II) detection

Rao, Ashok; Reddy, Ramesh B.; Sengupta, Sagnik; Chelvam, Venkatesh

doi:10.1007/s13204-018-0875-9

Cited by 11 publications

(8 citation statements)

References 58 publications

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“…topics have been central in previous reports (see references [104][105][106][107][108][109][110][111][112][113][114][115][116], (Figure 61), [117,118], (Figure 62), [119] (Figure 63), [120][121][122][123][124][125][126][127][128][129] Karimi et al synthesized carbon nanotube-cadmium selenide nanocomposites by electrophoretic deposition. From their investigation with the variation of 30%, 40%, 50%, 80%, and 90% also 120 V, 160 V, 200 V and 240 V potential, it is known that the optimum conditions for the synthesis of these materials is 50% of carbon nanotube; the yield of quantum dot deposition is 0.00035 g•cm −2 using 240 V. These results are also in line with the luminescence data in which it is found that 50% of carbon nanotube-cadmium selenide composite has the highest intensity of the others studied.…”

Section: Selenium In Physics Surfaces and Nanoscience With Regard To Sensing And Fluorescencementioning

confidence: 92%

“…There are many points relating to aspects of frontiers in science. Some issues of papers that we list here but do not comment on involve nanoparticle, CdSe materials, cancer cells, Cu(In,Ga)Se 2 materials, zinc selenite coatings with GSH, water solubility, fluorescent and electrochemical methods, CdSe/ZnS thioglycolic acid coatings, physicochemical characterization, Beta lactoglobulin levels, O 2− and Cu 2+ detection, dimercaprol–capped QD systems, hydrodynamic radii, confocal fluorescent selenous acid, etc; These and many more topics have been central in previous reports (see references [ 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 , 112 , 113 , 114 , 115 , 116 ], ( Figure 61 ), [ 117 , 118 ], ( Figure 62 ), [ 119 ] ( Figure 63 ), [ 120 , 121 , 122 , 123 , 124 , 125 , 126 , 127 , 128 , 129 ]).…”

Section: Selenium In Physics Surfaces and Nanoscience With Regarmentioning

confidence: 99%

“…The probe has a noted extraordinary sensitivity involving a LOD of 1 pm; the selectivity for Hg 2+ in the presence of heavy metal ion interferents, even when they are at a high concentration was noteworthy. The probe can also be used to detect Hg 2+ in real samples in which the recovery rate was measured to be between 93-99% [111]. 68).…”

Section: Selenium In Physics Surfaces and Nanoscience With Regard To Sensing And Fluorescencementioning

confidence: 99%

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Discussions of Fluorescence in Selenium Chemistry: Recently Reported Probes, Particles, and a Clearer Biological Knowledge

et al. 2021

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In this review from literature appearing over about the past 5 years, we focus on selected selenide reports and related chemistry; we aimed for a digestible, relevant, review intended to be usefully interconnected within the realm of fluorescence and selenium chemistry. Tellurium is mentioned where relevant. Topics include selenium in physics and surfaces, nanoscience, sensing and fluorescence, quantum dots and nanoparticles, Au and oxide nanoparticles quantum dot based, coatings and catalyst poisons, thin film, and aspects of solar energy conversion. Chemosensing is covered, whether small molecule or nanoparticle based, relating to metal ion analytes, H2S, as well as analyte sulfane (biothiols—including glutathione). We cover recent reports of probing and fluorescence when they deal with redox biology aspects. Selenium in therapeutics, medicinal chemistry and skeleton cores is covered. Selenium serves as a constituent for some small molecule sensors and probes. Typically, the selenium is part of the reactive, or active site of the probe; in other cases, it is featured as the analyte, either as a reduced or oxidized form of selenium. Free radicals and ROS are also mentioned; aggregation strategies are treated in some places. Also, the relationship between reduced selenium and oxidized selenium is developed.

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Section: Selenium In Physics Surfaces and Nanoscience With Regard To Sensing And Fluorescencementioning

confidence: 92%

Section: Selenium In Physics Surfaces and Nanoscience With Regarmentioning

confidence: 99%

Section: Selenium In Physics Surfaces and Nanoscience With Regard To Sensing And Fluorescencementioning

confidence: 99%

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Discussions of Fluorescence in Selenium Chemistry: Recently Reported Probes, Particles, and a Clearer Biological Knowledge

et al. 2021

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“…However, this is only useful when a pollution source has been already identified. Sensors based on luminescence or fluorescence sensors have been used by many researchers to selectively detect HMIs [17][18][19][20][21][22]. However, this method also requires laboratory equipment for analysis and detection.…”

Section: Introductionmentioning

confidence: 99%

Ultrasensitive detection of cadmium ions using a microcantilever-based piezoresistive sensor for groundwater

Rotake

Darji

Kale

2020

Beilstein J. Nanotechnol.

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This paper proposes the selective and ultrasensitive detection of Cd(II) ions using a cysteamine-functionalized microcantilever-based sensor with cross-linked ᴅʟ-glyceraldehyde (DL-GC). The detection time for various laboratory-based techniques is generally 12–24 hours. The experiments were performed to create self-assembled monolayers (SAMs) of cysteamine cross-linked with ᴅʟ-glyceraldehyde on the microcantilever surface to selectively capture the targeted Cd(II). The proposed portable microfluidic platform is able to achieve the detection in 20–23 min with a limit of detection (LOD) of 0.56 ng (2.78 pM), which perfectly describes its excellent performance over other reported techniques. Many researchers used nanoparticle-based sensors for the detection of heavy metal ions, but daily increasing usage and commercialization of nanoparticles are rapidly expanding their deleterious effect on human health and the environment. The proposed technique uses a blend of thin-film and microcantilever (micro-electromechanical systems) technology, which mitigate the disadvantages of the nanoparticle approaches, for the selective detection of Cd(II) with a LOD below the WHO limit of 3 μg/L.

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“…Many authors using adsorption methods to extract the heavy metals from groundwater [12][13][14][15][16] but only useful to eliminate the dangerous heavy metals when a polluted source is identified. Luminescence(fluorescent)-based sensors have been used by many researchers to selectively detect the HMIs [17][18][19][20][21][22] but this method required lab-based equipment for analysis and detection. Also, most of the reported fluorescent probe reply only on the absorption and fluorescence change and need to acquired dynamic procedure [23].…”

Section: Introductionmentioning

confidence: 99%

Ultrasensitive detection of Cadmium ions using a microcantilever-based piezoresistive sensor for groundwater

Rotake¹,

Darji²,

Kale³

2020

Preprint

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In this paper, we proposed the selective and ultrasensitive detection of Cadmium ions using a Cysteamine functionalized microcantilever-based sensor with cross-linked DL-glyceraldehyde. The detection time for various laboratory-based techniques is generally 12-24 hours. The experiments performed to create the SAMs of Cysteamine (Cys) cross-linked with DL-glyceraldehyde on the Microcantilever surface to selectivity capture the targeted Cd2+ Ions. The proposed portable microfluidic platform able to achieve the detection in 20-23 minutes and having a Limit of Detection (LOD) of 0.56 ng (2.78 pM), which perfectly describes its excellent performance over other reported techniques. Many researchers used Nanoparticles (NPs)-Based sensors for Heavy metal ions detection, but day by day, increasing usage and commercialization of Nanoparticles are rapidly expanding their deleterious effect on human health and the environment. The proposed technique uses the blend of thin-film and microcantilever (MEMS)-technology to overdrive the disadvantages of the Nanoparticles-approaches for selective Cd2+ ions detection and having LOD less than WHO limit of 3 µg/L. The fabricated sensor can achieve the limits efficiently well below the standards set by the WHO and helpful for the early detection of HMIs polluted source.

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Efficient “turn-on” nanosensor by dual emission-quenching mechanism of functionalized Se doped ZnO nanorods for mercury (II) detection

Cited by 11 publications

References 58 publications

Discussions of Fluorescence in Selenium Chemistry: Recently Reported Probes, Particles, and a Clearer Biological Knowledge

Discussions of Fluorescence in Selenium Chemistry: Recently Reported Probes, Particles, and a Clearer Biological Knowledge

Ultrasensitive detection of cadmium ions using a microcantilever-based piezoresistive sensor for groundwater

Ultrasensitive detection of Cadmium ions using a microcantilever-based piezoresistive sensor for groundwater

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