Molecularly Imprinted High Affinity Nanoparticles for 4-Ethylphenol Sensing

A novel sensor for 4-ethylphenol (4EP) was developed based on molecularly imprinted nanoparticles produced via the solid phase imprinting method. The nanoparticles were immobilised on the surface of a gold electrode previously modified with a self assembled monolayer of lipoic acid coupled to EDC/NH...

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Bibliographic Details
Main Authors: Garcia-Mutio, D., Guerreiro, A., Gomez-Caballero, A., Gutierrez-Climente, R., Piletsky, S., Goicolea, M.A., Barrio, R.J.
Format: Conference Proceeding
Language:English
Subjects:
4-ethylphenol
electrochemical sensor
molecularly imprinted nanoparticles
solid phase synthesis
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Summary:A novel sensor for 4-ethylphenol (4EP) was developed based on molecularly imprinted nanoparticles produced via the solid phase imprinting method. The nanoparticles were immobilised on the surface of a gold electrode previously modified with a self assembled monolayer of lipoic acid coupled to EDC/NHS ((1-ethyl-3-[dimethylaminopropyl]carbodiimide)/N-hydroxysuccinimide). Each step of the process was characterised by electrochemical impedance spectroscopy and cyclic voltammetry. The electrode was used to selectively determine 4EP by differential pulse voltammetry; a quite remarkable sensitivity improvement was observed in the nanoparticle-modified electrode in reference to the non modified bare gold electrode.
ISSN:1877-7058
1877-7058
DOI:10.1016/j.proeng.2015.08.821