Epitaxial graphene immunosensor for human chorionic gonadotropin
نویسندگان
چکیده
منابع مشابه
Immunoassay for Human Chorionic Gonadotropin Based on Glassy Carbon Electrode Modified with an Epitaxial Nanocomposite
A highly sensitive electrochemicalimmunosensor was developed to detect hCG based on immobilization ofhCG-antibody (anti-hCG) onto robust nanocomposite containing Gr, Chit,1-methyl-3-octyl imidazolium tetra fluoro borate ionic liquid (IL)(Gr-IL-Chit). AuNPs were used to immobilize hCG antibody on the modifiedelectrode. The amine groups of the antibody are cova...
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An ultrasensitive electrochemical immunosensor for the detection of tumor marker human chorionic gonadotropin (hCG) was developed with a limit of detection as low as 2 pg mL-1 in phosphate buffer. The Platinum nanoparticles (PtNPs) were electrodeposited to modify the gold surface and to increase enlarging the electrochemically active sites, resulting in the facilitation of electron exchange. Cy...
متن کاملimmunoassay for human chorionic gonadotropin based on glassy carbon electrode modified with an epitaxial nanocomposite
a highly sensitive electrochemicalimmunosensor was developed to detect hcg based on immobilization ofhcg-antibody (anti-hcg) onto robust nanocomposite containing gr, chit,1-methyl-3-octyl imidazolium tetra fluoro borate ionic liquid (il)(gr-il-chit). aunps were used to immobilize hcg antibody on the modifiedelectrode. the amine groups of the antibody are covalently attached toaunps/gr-il-chit n...
متن کاملThe potentiality of the functionalized nitrogen and thiol-doped graphene quantum dots (GQDs-N-S) to stabilize the antibodies in the designing of human chorionic gonadotropin immunosensor
In this study, for the first time, a simple immunosensor for ultrasensitive recognition of Human Chorionic Gonadotropin (hCG) in serum samples was fabricated by exploiting a simple approach. In this method, a low-cost and sensitive immunosensor was fabricated based on QDs-N-S/Au nanoparticles (NPs) modified Screen-Printed Carbon Electrode (SPCE). It seems that, QDs-N-S/Au NPs/ antibody as a bio...
متن کاملHuman Chorionic Gonadotropin
A highly active preparation of human chorionic gonadotropin has been obtained by simple methods of column chromatography on diethylaminoethyl Sephadex and Sephadex G-100. The preparation appeared homogeneous by disc and immunoelectrophoresis, ultracentrifugation, and end group analysis. It assayed at 12,000 i.u. per mg by the rat prostrate gland and accessory sex organ method. The ~20,~ value w...
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ژورنال
عنوان ژورنال: Sensors and Actuators B: Chemical
سال: 2014
ISSN: 0925-4005
DOI: 10.1016/j.snb.2013.09.019