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ABSTRACT
A novel electrochemical impedimetric sensor based on new copper phthalocyanine derivative-functionalized gold substrates has been developed. The modified transducers have been characterized using Fourier transform infrared spectroscopy and contact angle measurements. Under the optimized conditions in terms of polarization and frequency range, the developed sensor provided a large linear range from 1 × 10−10 to 1 × 10−3 M with a detection limit of 9.48 × 10−11 M. To minimize the impedimetric sensor’s size, a microsensor based on modified gold microelectrodes was developed. Good sensitivity in the range from 1 × 10−8 to 1 × 10−3 M with a limit of detection of 8.32 × 10−9 M was achieved.
Additional information
Funding
This work was partially supported by the European Commission 7th Framework Programme Marie Curie Actions IRSES FP7-PEOPLE-2012-IRSES N° 318053: SMARTCANCERSENS project and the NATO Science for Peace (SFP) Project CBP.NUKR.SFP 984173.