Deposition routes of molecularly imprinted silica for the development of highly specific electrochemical “in-field” sensors
Résumé
Molecularly imprinted silica (MIS) electrode coatings have recently returned to the center of scientific research because of their advantages over organic imprinted polymers in electro-chemical analysis. An easy-to-control and well-studied sol-gel process that uses "green solvents", rigid structure and elec-trochemical inertness of the resulting material, applicability of electrochemical deposition techniques are the key elements that make MIS attractive for targeted and sensitive electro-chemical detection. This review aims to draw attention to electrode modification using MIS. It highlights the main stra-tegies for deposing MIS films on the electrode, indicates the adjustments that need to be made to known procedures to achieve an electrochemical sensing system with the best analytical performance, and discusses the advantages and weaknesses of each deposition route.