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Abstract: A voltammetric glucose sensor was prepared from novel molecularly imprinted polymeric micelles (MIPMs) through direct electrodeposition. The MIPMs, which were photo-crosslinkable and nano-scaled with high specific surface area, were prepared via macromolecule self-assembly of an amphiphilic photo-crosslinkable copolymer, combined with a molecular imprinting technique using glucose as the template molecule. A MIP film was formed in situ on the electrode surface by electrodeposition of the MIPMs, while photo-crosslinking led to a robust film which showed good solvent resistant to dissolution. With these features, the resulting sensor showed good response and selectivity towards glucose. In particular, the linear response of this glucose sensor ranged from 0.2 mM to 8 mM and its comparatively higher detection limit, about 10 mM, indicated numerous effective recognition sites among the polymer matrix due to the large specific surface area of MIPM. In addition, this MIP sensor also showed good stability and reversibility. The contribution of this work lies in not only the invention of a new type of glucose MIP sensor with good performance, but also the creation of a novel strategy to develop advanced MIP sensors for a wide range of templates in viewing of the versatility of the amphiphilic copolymers and the ease of control and applicability of the electrodeposition process
Template and target information: glucose
Author keywords: glucose sensor, Molecularly imprinted polymers, electrodeposition, Self-assembly micelles, Photo-crosslinkable polymer