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35884260 7 Youssef J., Zhu S., Crunteanu A., Orlianges J.-C., Ho H.-P., Bachelot R., Zeng S. Highly Sensitive Plasmonic Biosensors with Precise Phase Singularity Coupling on the Metastructures. Nanomaterials have been widely exploited in the preparation of sensors and biosensors owing to their excellent features, such as high surface area, quantum size effect, and active surface [[3]]. The identification of the target molecule is required for rapid and reliable clinical diagnosis and disease monitoring [[1]]. The findings reported in this Special Issue suggest that nanomaterials possess the potential to be used for the development of various electrochemical sensors and biosensors. [Extracted from the article]

Herein, we propose a facile chemical reduction method to synthesize the molybdenum carbide (Mo 2 C) nanoparticles and its application for the electrochemical detection of folic acid (FA) through imprinting technique. Raman scattering, photoelectron spectroscopy and electron microscopy techniques were employed to study the properties of Mo 2 C nanoparticles. FA imprinting was carried out in the presence of pyrrole monomer over Mo 2 C modified glassy carbon electrode (GCE). The proposed sensor showed the detection behavior for wide range of FA concentrations from 0.01 μM to 120 μM with an excellent LOD value of 4 nM and good selectivity toward FA as compared to other co-existing species in real samples. The fabricated MIP-Mo 2 C/GCE sensors were able to be replicated with ∼1.9% RSD, and their reproduced sensor offered good repeatability (RSD; 1.6%) and stability. • A facile chemical reduction method employed to synthesis the Mo 2 C. • MIP-Mo 2 C/GCE sensor electrode successfully fabricated by electropolymerization. • MIP-Mo 2 C/GCE sensor showed the superior sensitivity performance than NIP–Mo 2 C/GCE. • High reproducibility and stability revealed with an excellent LOD value of 4 nM. [ABSTRACT FROM AUTHOR]