ArticleAnalytical and bioanalytical chemistry2026
A portable multimodal electrochemical platform integrating β-cyclodextrin and Pd-Au@ZnO nanostructures for the chiral recognition of valine enantiomers in complex biological matrices.
Article in Analytical and bioanalytical chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The development of a straightforward and efficient multimodal electrochemical platform for enantiomeric discrimination is of considerable importance in clinical diagnostics and life sciences. In this study, a compact chiral electrochemical platform was fabricated by modifying a screen-printed carbon nanofiber electrode with β-cyclodextrin and zinc oxide nanostructures decorated with bimetallic Pd-Au nanoparticles, designed for the selective recognition and quantification of valine enantiomers in whole blood samples. The platform integrates two operational modes, linear sweep voltammetry and stochastic sensing, allowing both qualitative and quantitative analysis of the target analyte. A comprehensive characterization of the modified electrode was conducted using scanning electron microscopy, cyclic voltammetry, and electrochemical impedance spectroscopy. The platform exhibited high enantioselectivity. A well-defined linear relationship was observed between the anodic peak current and the logarithm of valine enantiomer concentrations in the range of 1.0 × 10
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