2017
DOI: 10.1016/j.bios.2017.03.069
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Facile and efficient electrochemical enantiomer recognition of phenylalanine using β-Cyclodextrin immobilized on reduced graphene oxide

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Cited by 95 publications
(60 citation statements)
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“…Figure 5 depicts the LSV responses towards L-Phe (left column) and D-Phe (right column) of a bare GCE before and after the electrodeposition of native (PPy) and substituted (PPy-β-CD) pyrrole. Here it is important to note that voltammetric discrimination can be based both on the change in peak current and the difference between peak potentials observed in the solutions of enantiomers [27][28][29].…”
Section: Molecular Recognitionmentioning
confidence: 99%
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“…Figure 5 depicts the LSV responses towards L-Phe (left column) and D-Phe (right column) of a bare GCE before and after the electrodeposition of native (PPy) and substituted (PPy-β-CD) pyrrole. Here it is important to note that voltammetric discrimination can be based both on the change in peak current and the difference between peak potentials observed in the solutions of enantiomers [27][28][29].…”
Section: Molecular Recognitionmentioning
confidence: 99%
“…This phenomenon should occur if a negatively charged redox marker compensates the positive charge located on the amino group of the bound D-Phe methyl ester hydrochloride. The situation in which the electrochemical signal does not change with the increasing concentration of L-Phe is likely if the positively charged À NH 3 + of L-Phe methyl ester hydrochloride is hidden in the inner β-CD cavity [29] and is, therefore, unavailable for the redox marker (Scheme 1). This observation is in agreement with previously published results [33][34][35].…”
Section: Mechanism Of Recognitionmentioning
confidence: 99%
“…Although these methods are routinely used for accurate determination, they still suffer from some drawbacks such as long response time, high instrument cost, and sophisticated operation procedure. On the other hand, the electrochemical approach can be considered as an alternative method for enantiorecognition due to its high sensitivity, fast response, and low cost [9][10][11][12].…”
Section: Introductionmentioning
confidence: 99%
“…In contrast, the stereoselective material immobilized biosensor can be directly used for discriminating sensing. However, the stereoselective materials such as cyclodextrin and chitosan have poor conductivity, which limited their enantiorecognition in the electrochemical field [10,12]. To solve this problem, conductive substrate materials were commonly used for forming complexes and were subsequently used for electrochemical enantiorecognition application.…”
Section: Introductionmentioning
confidence: 99%
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