Ultrasensitive multiwall carbon nanotube-mesoporous MCM-41 hybrid-based platform for the electrochemical detection of ascorbic acid

Vaschetti, Virginia M.; Viada, Benjamín Nahuel; Tamborelli, Alejandro; Eimer, Griselda A.; Rivas, Gustavo A.; Dalmasso, Pablo R.

doi:10.1039/d2an00473a

Cited by 5 publications

(2 citation statements)

References 60 publications

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“…At present, several analysis methods are commonly applied for the detection of AA, such as chromatography [13,14], redox titration [15], spectrophotometry [16][17][18] and electrochemistry [19][20][21][22]. These methods for the determination of AA have their own characteristics [23].…”

Section: Introductionmentioning

confidence: 99%

Ascorbic Acid-Caused Quenching Effect of Protein Clusteroluminescence Probe: The Fast Fluorescent Detection of Ascorbic Acid in Vegetables

et al. 2023

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It is interesting and meaningful to explore fluorescent probes for novel rapid detection methods. In this study, we discovered a natural fluorescence probe, bovine serum albumin (BSA), for the assay of ascorbic acid (AA). Due to clusterization-triggered emission (CTE), BSA has the character of clusteroluminescence. AA shows an obvious fluorescence quenching effect on BSA, and the quenching effect increases with increasing concentrations of AA. After optimization, a method for the rapid detection of AA is established by the AA-caused fluorescence quenching effect. The fluorescence quenching effect reaches saturation after 5 min of incubation time and the fluorescence is stable within more than one hour, suggesting a rapid and stable fluorescence response. Moreover, the proposed assay method shows good selectivity and a wide linear range. To further study the mechanisms of AA-caused fluorescence quenching effect, some thermodynamic parameters are calculated. The main intermolecular force between BSA and AA is electrostatic, presumably leading to the inhibiting CTE process of BSA. This method also shows acceptable reliability for the real vegetable sample assay. In summary, this work will not only provide an assay strategy for AA, but also open an avenue for the application expansion of CTE effect of natural biomacromolecules.

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Section: Introductionmentioning

confidence: 99%

Ascorbic Acid-Caused Quenching Effect of Protein Clusteroluminescence Probe: The Fast Fluorescent Detection of Ascorbic Acid in Vegetables

et al. 2023

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“…The previously published z E-mail: tewei@ntut.edu.tw reports have proposed the above-mentioned chemical interaction for electrochemical detection using comparable materials. 48,49 Here, we have assumed that MCM-41/CoWO 4 /GCE modified electrode can be employed as an electrocatalyst based on the understanding of the characteristics of MCM-41.…”

mentioning

confidence: 99%

Development of Novel Cobalt Tungstate Anchored on MCM-41 for Sensitive Detection of Dopamine in Human Urine Samples

Meenakshi,

Sakthinathan,

Chiu

2023

J. Electrochem. Soc.

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In this study, MCM-41/CoWO4 nanocomposite has been used for electrochemical detection of dopamine neurotransmitters. The cobalt tungstate nanoparticles (CoWO4) were synthesized through facile hydrothermal method and MCM-41/CoWO4 nanocomposite was prepared by ultrasonication method. The as-synthesized MCM-41/CoWO4 nanocomposite was characterized by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and Raman techniques. The electrochemical performance of the nanocomposite was examined using electrochemical impedance spectroscopy, cyclic voltammetry, and differential pulse voltammetry studies. The GCE/MCM-41/CoWO4 electrode exhibited a linear range, better sensitivity, and limit of detection (LOD) of 10–170 μM, 0.3361 μA μM−1 cm−2 and 7.2 nm, respectively. Moreover, the GCE/MCM-41/CoWO4 electrode demonstrated good repeatability, reproducibility, and stability. In addition to that, the real sample analysis was conducted using human urine with excellent recovery and RSD percentage.

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Applications of Surface Modified Carbon Nanotubes in Electrochemical Sensors and Biosensors

Khizar

Al‐Dossary

Zine

et al. 2022

ACS Symposium Series

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Ultrasensitive multiwall carbon nanotube-mesoporous MCM-41 hybrid-based platform for the electrochemical detection of ascorbic acid

Abstract: This work presents for the first time the systematic preparation of a novel carbon nanotube-MCM-41 hybrid employing the mesoporous material MCM-41 as a successful dispersant for multiwall carbon nanotubes (MWCNTs)....

Cited by 5 publications

References 60 publications

Ascorbic Acid-Caused Quenching Effect of Protein Clusteroluminescence Probe: The Fast Fluorescent Detection of Ascorbic Acid in Vegetables

Ascorbic Acid-Caused Quenching Effect of Protein Clusteroluminescence Probe: The Fast Fluorescent Detection of Ascorbic Acid in Vegetables

Development of Novel Cobalt Tungstate Anchored on MCM-41 for Sensitive Detection of Dopamine in Human Urine Samples

Applications of Surface Modified Carbon Nanotubes in Electrochemical Sensors and Biosensors

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