SiM20 Posters

Sensors in Medicine 2020 16 ELECTROCHEMICAL ENZYME-LESS CREATININE DETECTION USING COPPER OXIDE NANOPARTICLES Katarzyna Bialas 1 , Curran Kalha 2 , Anna Regoutz 2 , Despina Moschou 1 , Pedro Estrela 1 1 Centre for Biosensors, Bioelectronics and Biodevices (C3Bio) and Department of Electronic & Electrical Engineering, University of Bath, UK 2 Department of Chemistry, University College London, UK Introduction • Enzyme-less sensors ✓ longer shelf-life ✓ lower production costs ✓ easier to manufacture • Copper oxide nanoparticles (CuO) and copper-doped Nafion® (Cu/Naf) [1] were used for gold electrode (Au) functionalisation • Sensors show creatinine-specific response within the required clinical ranges was achieved Nafion drop-casting Incubation in CuSO 4 /HNO 3 Electrochemical doping Preparation Cu/Naf/Au CuO/Au CuO NPs synthesis CuO NPs drop-casting