High selective colorimetric detection of Cd2+ ions using cysteamine functionalized gold nanoparticles with cross-linked DL-glyceraldehyde

Yadav, Rahul; Patel, Piyush N.; Lad, V. N.

doi:10.1007/s11164-017-3230-y

Cited by 12 publications

(11 citation statements)

References 23 publications

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“…Longer times yield a better packing density of the SAM. In addition, a 2% (0.2 g/10 mL) solution of ᴅʟ-glyceraldehyde (DL-GC) in phosphate buffer saline (PBS, pH 7) according to [34] was prepared. The cysteamine SAM was allowed to cross-link with the ᴅʟ-glyceraldehyde solution for at least 2-3 hours by covering the container using silver foil.…”

Section: Results Of the Sam Detecting Cadmium Ionsmentioning

confidence: 99%

“…We have cross-linked the amine group with ᴅʟ-glyceraldehyde at pH 7 to obtain a free -OH group (a Lewis acid) for capturing Cd(II). The pKa value of 12.6 of ᴅʟ-glyceraldehyde yield a strong copmplex of the -OH group with cadmium [34] after blocking the -NH 2 group of cysteamine.…”

Section: Microfluidic Platform With Piezosensormentioning

confidence: 99%

“…Also, excessive commercialization of nanoparticles leads to increasing their harmful effect on life and the environment by [ 44 – 46 ]. In this article, an attempt is made to expand the AuNP-based technology proposed by [ 34 ] for the ultrasensitive sensing of Cd(II) with cysteamine-functionalized ᴅʟ-glyceraldehyde (Cys-DL-GC) using the advanced MEMS-based piezoresistive platform. The MEMS-based sensor has very high sensitivity compared to any other technique.…”

Section: Microfluidic Platform With Piezosensormentioning

confidence: 99%

“…Many authors have proposed electrode-based approaches for the selective sensing of Cd(II) [ 32 ], but the limits of detection were always in the micromolar to nanomolar ranges. Some of the authors used fluorescent [ 5 , 33 ] and calorimetric [ 34 ] approaches to selectively detect the Cd(II). But these approaches required laboratory equipment for analysis and the LODs were also in the nanomolar range.…”

Section: Introductionmentioning

confidence: 99%

“…All these methods are reliable for the qualitative and quantitative determination of Cd(II), but they are time-consuming, expensive, and not suitable for on-site determination. The calorimetric approach proposed by [ 34 – 37 ] is free from these problems but not capable of differentiating between two nearby ranges and the LOD is also on the higher side. The electrochemical sensor described in [ 38 ] is a good approach, but it also requires a lab instrument for measurement.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

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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Section: Results Of the Sam Detecting Cadmium Ionsmentioning

confidence: 99%

Section: Microfluidic Platform With Piezosensormentioning

confidence: 99%

Section: Microfluidic Platform With Piezosensormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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

Rotake

Darji

Kale

2020

Beilstein J. Nanotechnol.

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Visual monitoring and optical recognition of digoxin by functionalized AuNPs and triangular AgNPs as efficient optical nano‐probes

Mohammadzadeh

Pashazadeh-Panahi

Hasanzadeh

2021

J of Molecular Recognition

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In this study, we presented elective, sensitive, and rapid UV-Vis spectrophotometry and calorimetric assay for the recognition of digoxin. Therefore, cysteamine-gold nanoparticles (Cys A-AuNPs) in the presence of cysteine acid amine and Silver nanoparticles in the presence of tetramethyl benzidine and hydrogen peroxide (AgNPs-TMB [3,3 0 ,5,5 0 -tetramethylbenzidine]-H 2 O 2 ) were synthesized and utilized as the desired probe. Finally, color variation of probes was observed in the absence and presence of digoxin. Obtained results indicate that the color of Cys A-AuNPs changed from dark pink to light in the absence and the presence of digoxin, respectively. Also, the color of AgNPs-TMB-H 2 O 2 changed from dark blue to light blue, in the absence and the presence of digoxin, respectively. Moreover, UV-Vis spectroscopies results indicate digoxin with a low limit of quantification of 0.125 ppm in human plasma samples which linear range was 0.125 to 11 ppm.

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Bioinspired gold nanoparticles-based colorimetric nanosensor for detection of antimony in plastic bottled water

Refera,

Bekana,

Temesgen

et al. 2023

Res Chem Intermed

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High selective colorimetric detection of Cd2+ ions using cysteamine functionalized gold nanoparticles with cross-linked DL-glyceraldehyde

Cited by 12 publications

References 23 publications

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

Visual monitoring and optical recognition of digoxin by functionalized AuNPs and triangular AgNPs as efficient optical nano‐probes

Bioinspired gold nanoparticles-based colorimetric nanosensor for detection of antimony in plastic bottled water

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