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Reference type: Journal
Authors: Battal D, Akgönüllü S, Yalcin MS, Yavuz H, Denizli A
Article Title: Molecularly imprinted polymer based quartz crystal microbalance sensor system for sensitive and label-free detection of synthetic cannabinoids in urine.
Publication date: 2018
Journal: Biosensors and Bioelectronics
Volume: 111
Page numbers: 10-17.
DOI: 10.1016/j.bios.2018.03.055
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0956566318302392

Abstract: Herein, we prepared a novel quartz crystal microbalance (QCM) sensor for synthetic cannabinoids (JWH-073, JWH-073 butanoic acid, JWH-018 and JWH-018 pentanoic acid,) detection. Firstly, the synthetic cannabinoid (SCs) imprinted (MIP) and non-imprinted (NIP) nanoparticles were synthesized by mini-emulsion polymerization system. The SCs-imprinted nanoparticles were first characterized by SEM, TEM, zeta-size and FTIR-ATR analysis and then were dropped onto the gold QCM surface. The SCs-imprinted QCM sensor was characterized by an ellipsometer, contact angle, and AFM. The limit of detection was found as 0.3, 0.45, 0.4, 0.2 pg/mL JWH-018, JWH-073, JWH-018 pentanoic acid and JWH-073 butanoic acid, respectively. The selectivity of the SCs-imprinted QCM sensor was shown by using JWH-018, JWH-018 pentanoic acid, JWH-073 and JWH-073 butanoic acid. According to the results, the SCs-imprinted QCM sensors show highly selective and sensitive in a broad range of synthetic cannabinoid concentrations (0.0005-1.0 ng/mL) in both aqueous and synthetic urine solutions
Template and target information: synthetic cannabinoids, SCs, JWH-073, JWH-073 butanoic acid, JWH-018, JWH-018 pentanoic acid
Author keywords: Forensic toxicology, QCM sensor, Molecularly imprinted nanoparticles, Synthetic cannabinoid


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