Colorimetric detection of chromium(III) using O-phospho-l-serine dithiocarbamic acid functionalized gold nanoparticles

Lo, Shu Hua; Wu, Mei; Venkatesan, Parthiban; Wu, Shu-Pao

doi:10.1016/j.snb.2015.05.120

Cited by 26 publications

(10 citation statements)

References 29 publications

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“…Colorimetric analysis of gold nanoparticles is based on their optical properties and the large color changes caused by gold nanoparticle aggregation and changes in their morphologies or interparticle distances [89,90]. Aggregation of gold nanoparticles with appropriate sizes leads to surface plasmon resonance coupling, and causes color changes in the visible region.…”

Section: Principle Of Gold Nanoparticles-based Colorimetric Sensormentioning

confidence: 99%

Application of Gold-Nanoparticle Colorimetric Sensing to Rapid Food Safety Screening

Liu

Huang

et al. 2018

Sensors

161

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Due to their unique optical properties, narrow size distributions, and good biological affinity, gold nanoparticles have been widely applied in sensing analysis, catalytic, environmental monitoring, and disease therapy. The color of a gold nanoparticle solution and its maximum characteristic absorption wavelength will change with the particle size and inter-particle spacing. These properties are often used in the detection of hazardous chemicals, such as pesticide residues, heavy metals, banned additives, and biotoxins, in food. Because the gold nanoparticles-colorimetric sensing strategy is simple, quick, and sensitive, this method has extensive applications in real-time on-site monitoring and rapid testing of food quality and safety. Herein, we review the preparation methods, functional modification, photochemical properties, and applications of gold nanoparticle sensors in rapid testing. In addition, we elaborate on the colorimetric sensing mechanisms. Finally, we discuss the advantages and disadvantages of colorimetric sensors based on gold nanoparticles, and directions for future development.

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Section: Principle Of Gold Nanoparticles-based Colorimetric Sensormentioning

confidence: 99%

Application of Gold-Nanoparticle Colorimetric Sensing to Rapid Food Safety Screening

Liu

Huang

et al. 2018

Sensors

161

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“…Regeneration of a nanosensor is a key feature to explore its reusability for sensing specific analytes. EDTA is a strong chelating agent and has been used by many researchers to regenerate the sensor from the aggregated nanosensor–metal complex solution. ,,, Since EDTA–metal complexes are water soluble, it is difficult to separate them from the reaction solution. To address this, EDTA-modified magnetic NP (EDTA-FeNP) were synthesized and 5 mg was added to the aggregated solution of DTDTPA-GNP–Cr III /Cr VI and mixed properly.…”

Section: Resultsmentioning

confidence: 99%

“…Strong scattering and absorption of light render vibrant color to the GNP solution, which is dependent on the size of GNP. After interaction with the target analyte, the GNP solution changes color from red to purple or blue and thereby provide a potential platform in the colorimetric sensor technology. − …”

Section: Introductionmentioning

confidence: 99%

Diethylenetriaminepentaacetic Acid-Functionalized Gold Nanoparticles for the Detection of Toxic Chromium Assisted by a Machine-Learning Approach

Priyadarshni

Dutta

Chanda

2021

ACS Appl. Nano Mater.

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We present a machine-learning approach in developing a smartphone-based rapid and point-of-use (PoU) trace-level detection of chromium (III and VI) ions using a nanosensor comprising dithiolated diethylenetriaminepentaacetic acid-functionalized gold nanoparticles (DTDTPA-GNP). The bright red color of DTDTPA-GNP turned blue with Cr III/VI ions in an aqueous medium. The nanosensor exhibited good linearity for Cr III/VI detection in a concentration range of 0.001−10 ppm with a detection limit of 0.001 ppm. A smartphone was used to acquire images of the distinct color change due to the DTDTPA-GNP−Cr III/VI interactions. Two features, that is, saturation and chroma component of red color difference were extracted from the color information of the acquired images. The extracted features from training samples were utilized to build a support vector machine-based regression (SVR) model to predict the accurate concentration of chromium (III and VI) in water and an aqueous extract of ferrochrome industrial waste (collected from the alloy industry as waste slag). The accurate prediction of 0.027 ppm Cr III/VI concentration in the industrial waste sample with a 100% recovery rate confirms the colorimetric-based SVR model as an efficient sensing platform for Cr III/VI ion detection. The mean squared error for Cr III/VI prediction was 0.00039 with 404 support vectors and a bias value of 0.1473. This highly selective and sensitive smartphone-based approach thus established the use of DTDTPA-GNP for PoU detection of Cr III/VI , specifically in day-today monitoring of water quality.

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“…Dong et al 25 reported gallic acidstabilized gold nanoparticles for the simultaneous detection of Cr 3+ and when coexisting in a sample, citrate and thiosulfate were applied to mask Cr 3+ for the detection of Cr 6+ , and ethylenediaminetetraacetic acid (EDTA) disodium salt was applied to mask Cr 3+ for the detection of Cr 6+ . A selective and sensitive colorimetric sensor for Cr 3+ was developed by the Wu group 26 using O-phospho-L-serine dithiocarbamic acid-functionalized gold nanoparticles with a detection limit of 2.3 nM over a large pH range of 5−10. Citrate-capped AuNPs were functionalized by pyridine 2,3-dicarboxylic acid (PDCA) reported by Shaikh et al 27 for colorimetric detection of Cr 3+ , where −COO − and N atom of PDCA are responsible for surface functionalization of AuNPs and detection of Cr 3+ , respectively.…”

Section: Introductionmentioning

confidence: 99%

Colorimetric Dual Sensors of Metal Ions Based on 1,2,3-Triazole-4,5-Dicarboxylic Acid-Functionalized Gold Nanoparticles

Mondal

Yarger

2019

J. Phys. Chem. C

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A simple, rapid, selective, and cost-effective colorimetric assay for Cr3+ and Eu3+ ion detection has been developed using functionalized gold nanoparticles. Gold nanoparticles (AuNPs) were prepared using HAuCl4, where sodium citrate is a reducing agent as well as a capping agent, and then functionalized with 1,2,3-triazole-4,5-dicarboxylic acid (TADA). Fourier transform infrared (FTIR) and Raman spectroscopies suggested that TADA was functionalized on the surface of AuNPs through the N atom of triazole. The TADA-functionalized gold nanoparticles (TADA@AuNPs) simultaneously detect Cr3+ and Eu3+ ions from aqueous solution and showed different responses to the two metal ions (Cr3+ and Eu3+) based on an aggregation-induced color change of AuNPs. They showed a color change from wine red to blue, which was easily detected by the naked eye, as well as by UV–visible and FTIR spectroscopies. The surface plasmon resonance absorbances of Cr3+ and Eu3+ are 633 and 671 nm, respectively, when Cr3+ and Eu3+ react with TADA@AuNPs and showed good linearity with Cr3+ and Eu3+ concentrations with detection limits 5.89 nM and 4.30 μM, respectively (S/N = 3). The TADA@AuNPs showed excellent selectivity toward Cr3+ and Eu3+ compared to those of the 16 different metal ions. We had also tested the selectivity of TADA@AuNPs toward Eu3+ compared to that of the other 10 lanthanide systems. Optimal detection was achieved toward Cr3+ and Eu3+ ions in the pH range 4–10. In addition, TADA@AuNPs were applied to detect Cr3+ and Eu3+ ions from lake water showing low interference.

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Colorimetric detection of chromium(III) using O-phospho-l-serine dithiocarbamic acid functionalized gold nanoparticles

Cited by 26 publications

References 29 publications

Application of Gold-Nanoparticle Colorimetric Sensing to Rapid Food Safety Screening

Application of Gold-Nanoparticle Colorimetric Sensing to Rapid Food Safety Screening

Diethylenetriaminepentaacetic Acid-Functionalized Gold Nanoparticles for the Detection of Toxic Chromium Assisted by a Machine-Learning Approach

Colorimetric Dual Sensors of Metal Ions Based on 1,2,3-Triazole-4,5-Dicarboxylic Acid-Functionalized Gold Nanoparticles

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