İnsan kapa opioid almaçlarının insan vücut sıvılarından uyuşturucu tayini amacıyla biyosensör yüzeyine sabitlenmesi

Biosensors are promising devices for detecting interactions between both chemical and biological molecules and exploring a novel molecule. The immobilization of biological molecules on surfaces has a crucial role in the fabrication of biosensors. This study presents functionalization of human ? opioid receptor (hKOR) for a novel biosensor application to detect drug molecules from human bodily fluids. For this purpose, the receptor was first cloned to expression vectors and expressed in Escherichia coli. Then, recombinant hKOR was purified by affinity chromatography. For the first time, the purified receptor was immobilized on the micro-fabricated cantilever array biosensor via thiol groups and Ni-NTA complex. The immobilization of the receptors was verified with fluorescence microscopy. A specific and label-free detection of interaction between hexa-histidine tagged hKOR and his-antibody has been demonstrated.