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Recent developments in voltammetric and amperometric sensors for cysteine detection
Somayeh Tajik1, Zahra Dourandish2, Peyman Mohammadzadeh Jahani3
1Research Center for Tropical and Infectious Diseases, Kerman University of Medical Sciences Kerman Iran.
RSC Advances
|April 15, 2022
Summary
This review covers advances in electrochemical sensing of cysteine (Cys), an essential amino acid. It highlights modified electrodes for sensitive and selective Cys detection, addressing current challenges and future directions.
Area of Science:
- Electrochemistry
- Analytical Chemistry
- Biochemistry
Background:
- Cysteine (Cys) is an essential amino acid vital for protein structure and function.
- Electrochemical methods offer sensitive and selective detection of biomolecules.
- Chemically modified electrodes enhance electrochemical sensing capabilities.
Purpose of the Study:
- To review recent advancements in voltammetric and amperometric sensing of cysteine.
- To summarize the role of cysteine and electrochemical determination techniques.
- To explore the use of modified electrodes for cysteine analysis.
Main Methods:
- Review of literature on voltammetric and amperometric sensing of cysteine.
- Focus on electrochemical methods using modified electrodes.
- Analysis of data from glassy carbon, screen printed, and carbon paste electrodes.
Main Results:
- Electrocatalytic materials significantly improve cysteine detection sensitivity and selectivity.
- Modified electrodes demonstrate effective voltammetric and amperometric responses for cysteine.
- Various electrode materials and modifications show promise for accurate cysteine quantification.
Conclusions:
- Electrochemical sensing offers a powerful tool for cysteine determination.
- Challenges remain in achieving highly selective and interference-free cysteine measurements.
- Future research should focus on developing novel electrode materials and integrated sensing platforms for cysteine.
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