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The selective interaction between N-isobutyryl-cysteine enantiomers and L-methotrexate
[摘要] Simple and sensitive chiral interfaces were constructed by assembling L- or D-N-isobutyryl-cysteine (NIBC) on a gold electrode surface through an Au–S bond, and the two chiral interfaces were utilized to interact with L-methotrexate (L-Mtx). The surface characteristics and the process of interaction were explored via cyclic voltammetry (CV). The difference in peak current after L- and D-NIBC interacted with L-Mtx reached 525.3 μA, and a larger current difference was obtained from the L-NIBC interface, suggesting a stereoselective effect between L-Mtx and NIBC enantiomers. Therefore, the chiral NIBC interfaces could not only enhance the electron transfer of L-Mtx, but could also discriminate between NIBC enantiomers.
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[效力级别]  [学科分类] 分析化学
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