Colorimetric detection of chromium (VI) ion using poly(N-phenylglycine) nanoparticles acting as a peroxidase mimetic catalyst

Ghayyem, Sena; Swaidan, Abir; Barras, Alexandre; Dolci, Mathias; Faridbod, Farnoush; Szunerits, Sabine; Boukherroub, Rabah

doi:10.1016/j.talanta.2021.122082

Cited by 41 publications

(19 citation statements)

References 37 publications

(44 reference statements)

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“…It should be pointed out that, differently from the great majority of colorimetric methods (see, for instance, [ 11 , 12 , 13 , 16 , 29 , 30 ]), the interception of the calibration curve with the y-axis is close to zero, even for the absolute measurement at 550 nm. This is due to the fact that the absorbance of the reference solution, i.e., with a null concentration of Cr(VI), is lower than 2 × 10 −3 OD in the range between 550 and 700 nm.…”

Section: Resultsmentioning

confidence: 93%

“…More importantly, all of the listed methods are based on reactant solutions that must be prepared just before the measurements are taken and require quite complex sensing procedures. For instance, the detection of chromium with Poly (N-Phenylglycine) nanoparticles (PNPG-PEG) [ 29 ] required mixing Cr(VI) sample solution with 37.5 μL of PNPG-PEG (1 mg/mL), 112.5 μL of hydrogen peroxide (100 nM), and 300 μL of 3,3,5,5-tetramethylbenzidine (10 mM) in acetate buffer (pH 4). The mixture had to be kept at 35 °C for 30 min.…”

Section: Resultsmentioning

confidence: 99%

“…The colorimetric detection by ligand affinity has advantages over assays based, for instance, on the peroxidase mimicking of TMB (tetramethylbenzidine) oxidation by H 2 O 2 [ 29 , 40 ] due to the more stable set-up. The employment of H 2 O 2 , in fact, may introduce response fluctuation due to its instability.…”

Section: Resultsmentioning

confidence: 99%

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Colorimetric Detection of Chromium(VI) Ions in Water Using Unfolded-Fullerene Carbon Nanoparticles

Babazadeh

Bisauriya

Carbone

et al. 2021

Sensors

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Water pollution caused by hexavalent chromium (Cr(VI)) ions represents a serious hazard for human health due to the high systemic toxicity and carcinogenic nature of this metal species. The optical sensing of Cr(VI) through specifically engineered nanomaterials has recently emerged as a versatile strategy for the application to easy-to-use and cheap monitoring devices. In this study, a one-pot oxidative method was developed for the cage opening of C60 fullerene and the synthesis of stable suspensions of N-doped carbon dots in water–THF solutions (N-CDs-W-THF). The N-CDs-W-THF selectively showed variations of optical absorbance in the presence of Cr(VI) ions in water through the arising of a distinct absorption band peaking at 550 nm, i.e., in the transparency region of pristine material. Absorbance increased linearly, with the ion concentration in the range 1–100 µM, thus enabling visual and ratiometric determination with a limit of detection (LOD) of 300 nM. Selectivity and possible interference effects were tested over the 11 other most common heavy metal ions. The sensing process occurred without the need for any other reactant or treatment at neutral pH and within 1 min after the addition of chromium ions, both in deionized and in real water samples.

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 99%

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Colorimetric Detection of Chromium(VI) Ions in Water Using Unfolded-Fullerene Carbon Nanoparticles

Babazadeh

Bisauriya

Carbone

et al. 2021

Sensors

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“…2− and Cr 2 O 7 2− [1][2][3][4][5][6][7]. While Cr(III) plays a vital role in maintaining normal life activities [2][3][4][5]7,8], Cr(VI) is widely recognized as a highly toxic pollutant [2][3][4]6,7,9,10] with carcinogenic [2][3][4][5]7,8,11] and mutagenic effects [4,5,7]. Cr(VI) can cause metabolic disorders and damage to the kidney and other organs [5,10,[12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…Cr(VI) can cause metabolic disorders and damage to the kidney and other organs [5,10,[12][13][14][15][16]. Fortunately, the existing methods, including atomic absorption spectroscopy, [2][3][4][6][7][8][9][10][17][18][19][20], inductively coupled plasma-mass spectrometry [7,8,10,20,21] and inductively coupled plasma-optical emission spectrometry, [7,10,22,23], could provide an extremely sensitive, selective and reliable way for the detection of Cr(III) and Cr(VI) in real samples [7]. However, these methods usually involve tedious sample preparation, expensive equipment use, and lab-based tests [2][3][4][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Smartphone-Based Colorimetric Detection of Chromium (VI) by Maleic Acid-Functionalized Gold Nanoparticles

Mohamed

et al. 2021

Applied Sciences

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Because of the significant environmental pollution produced by human activities, there is an ongoing need to develop transportable, simple, and reliable techniques for determining trace contaminants on the spot. This work reported a colorimetric detection method for aqueous Cr(VI) sensing by maleic acid-functionalized gold nanoparticles with high sensitivity and selectivity. The wine-red color of the probe solution can change to gray even in the presence of 1.0 µg L−1 of aqueous Cr(VI). Moreover, with the assistance of a smartphone installed with a commercially available color scan application software, its concentration of could be readily quantified on the spot without the help of UV-Vis spectrometer. The detection limit could reach as low as 0.1 µg L−1 with linear range from 0.2 to 2.0 µg L−1. Most importantly, the coefficient variation of the proposed smartphone-based method was equivalent to that of colorimetry, demonstrating the high accuracy of the proposed method for accurate detection of Cr(VI) in resource-constrained countries. Conclusively, with the help of the smartphone, this nanomaterials-based probe demonstrated the potential in the field of environment monitoring for on-site quantitative detection of any pollutants in resource-constrained countries.

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Recent Advances in Common Transition Metal‐Based Single‐Atom Nanozymes and Their Applications in Pollutant Detection and Degradation

Xie,

Zhang,

et al. 2023

Part & Part Syst Charact

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Nanozymes can be used as favorable substitutes for natural enzymes because of their strong catalytic activity and good stability. At the same time, research on single‐atom catalysts (SACs) with isolated metal atoms as active centers is also in full swing, showing excellent performance in a variety of catalytic reactions. With the in‐depth study of SACs, people have a comprehensive understanding of them and put forward the concept of single‐atom nanozymes (SAzymes) by combining nanozymes with SACs. As a new type of nanomaterial, SAzymes have attracted great interest due to their remarkable catalytic activity and rapid energy conversion. However, most applications of SAzymes are mainly in the fields of biomedicine and biosensing, and less research has been done in the field of the environment. Based on the amazing ability of nanozymes to detect and degrade pollutants, SAzymes are also used in the environmental field, and even they will show better capabilities. This review mainly analyses common transition metal‐based SAzymes and describes their applications in the field of environmental pollutants.

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Colorimetric detection of chromium (VI) ion using poly(N-phenylglycine) nanoparticles acting as a peroxidase mimetic catalyst

Cited by 41 publications

References 37 publications

Colorimetric Detection of Chromium(VI) Ions in Water Using Unfolded-Fullerene Carbon Nanoparticles

Colorimetric Detection of Chromium(VI) Ions in Water Using Unfolded-Fullerene Carbon Nanoparticles

Smartphone-Based Colorimetric Detection of Chromium (VI) by Maleic Acid-Functionalized Gold Nanoparticles

Recent Advances in Common Transition Metal‐Based Single‐Atom Nanozymes and Their Applications in Pollutant Detection and Degradation

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