| Title |
Impurity-induced peroxidase mimicry of nanoclay and its potential for the spectrophotometric determination of cholesterol
|
|---|---|
| Published in |
Analytical & Bioanalytical Chemistry, July 2016
|
| DOI | 10.1007/s00216-016-9733-3 |
| Pubmed ID | |
| Authors |
K. Aneesh, Chiranjeevi Srinivasa Rao Vusa, Sheela Berchmans |
| Abstract |
A green version of the "Fe" impurity-induced peroxidase mimicry exhibited by simple and cheap substrate "nanoclay (NC)" along with the highly sensitive amperometric and spectrophotometric determination of cholesterol is demonstrated. The "Fe" impurity can act as the catalyst center for hydrogen peroxide reduction similar to the horseradish peroxidase (HRP)-catalyzed reaction. The Michaelis-Menten constant for the NC-catalyzed reaction is found to be lower than that of the HRP-catalyzed reaction indicating high affinity for the substrate. The NC-modulated peroxidase-like catalytic activity originates from the electron transfer between the reducing substrate in the catalyst center and H2O2 with the intermediate generation of hydroxyl radicals. The peroxidase mimicry is successfully applied for the low-potential electrochemical detection of H2O2 (linear detection range 1.96-10.71 mM, R (2) = 0.97). The H2O2 sensing platform is further modified with cholesterol oxidase (CHOx) for the spectrophotometric (linear detection range 50-244 μM, R (2) = 0.99) and amperometric detection of cholesterol (linear detection range 0.099-1.73 mM, R (2) = 0.998). Graphical abstract Peroxidase mimicry of nanoclay for the determination of cholesterol. |
X Demographics
The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | 50% |
| Unknown | 1 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 50% |
| Scientists | 1 | 50% |
Mendeley readers
The data shown below were compiled from readership statistics for 9 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 9 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 2 | 22% |
| Student > Ph. D. Student | 2 | 22% |
| Other | 1 | 11% |
| Student > Bachelor | 1 | 11% |
| Student > Master | 1 | 11% |
| Other | 0 | 0% |
| Unknown | 2 | 22% |
| Readers by discipline | Count | As % |
|---|---|---|
| Chemistry | 5 | 56% |
| Biochemistry, Genetics and Molecular Biology | 1 | 11% |
| Pharmacology, Toxicology and Pharmaceutical Science | 1 | 11% |
| Unknown | 2 | 22% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 18 January 2018.
All research outputs
#19,942,887
of 25,371,288 outputs
Outputs from Analytical & Bioanalytical Chemistry
#6,060
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Outputs of similar age
#271,883
of 370,748 outputs
Outputs of similar age from Analytical & Bioanalytical Chemistry
#64
of 161 outputs
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