| Abstract [eng] |
This dissertation investigates the molecular recognition of geraniol using electrochemical molecularly imprinted polymers (MIPs). The aim was to develop selective MIP sensing layers and to elucidate the role of geraniol–electrode interactions in polymer formation and sensor performance. The adsorption mechanism of geraniol on gold surfaces was examined, electrochemical polymerization conditions were optimized, and MIP/NIP architectures were fabricated and characterized. Cyclic voltammetry, electrochemical impedance spectroscopy, quartz crystal microbalance analysis, and atomic force microscopy demonstrated that geraniol actively influences polymer growth, structural organization, and interfacial properties. The proposed dual-layer NIP/MIP design exhibited enhanced adsorption capacity, improved reproducibility, and higher selectivity compared with conventional single-layer systems. The developed sensing platform enabled selective geraniol recognition in essential-oil-related matrices and showed applicability for the detection of hydrophobic fragrance compounds. The findings provide new insight into the dual role of template molecules as both recognition targets and structural modulators during molecular imprinting, contributing to the development of robust, portable, and cost-effective sensors for natural product quality control and analytical applications. |
