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논문 기본 정보

자료유형
동향자료
저자정보
Giribabu, Krishnan (Department of Biological Engineering, Biohybrid Systems Research Center [BSRC], Inha University) Jang, Sung-Chan (Department of Biological Engineering, Biohybrid Systems Research Center [BSRC], Inha University) Haldorai, Yuvaraj (Department of Energy and Materials Engineering, Dongguk University-Seoul) Rethinasabapathy, Muruganantham (Department of Biological Engineering, Biohybrid Systems Research Center [BSRC], Inha University) Oh, Seo Yeong (Department of Biological Engineering, Biohybrid Systems Research Center [BSRC], Inha University) Rengaraj, Arunkumar (Department of Biological Engineering, Biohybrid Systems Research Center [BSRC], Inha University) Han, Young-Kyu (Department of Energy and Materials Engineering, Dongguk University-Seoul) Cho, Wan-Seob (Laboratory of Toxicology, Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University) Roh, Changhyun (Biotechnology Research Division, Advanced Radiation Technology Institute [ARTI], Korea Atomic Energy Research Institute [KAERI]) Huh, Yun Suk (Department of Biological Engineering, Biohybrid Systems Research Center [BSRC], Inha University)
저널정보
한국탄소학회 Carbon letters Carbon letters 제23권
발행연도
2017.1
수록면
38 - 47 (10page)

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In this study, magnetite ($Fe_3O_4$) nanoparticles were electrochemically synthesized in an aqueous electrolyte at a given potential of -1.3 V for 180 s. Scanning electron microscopy revealed that dendrite-like $Fe_3O_4$ nanoparticles with a mean size of < 80 nm were electrodeposited on a glassy carbon electrode (GCE). The $Fe_3O_4/GCE$ was utilized for sensing chloramphenicol (CAP) by cyclic voltammetry and square wave voltammetry. A reduction peak of CAP at the $Fe_3O_4/GCE$ was observed at 0.62 V, whereas the uncoated GCE exhibited a very small response compared to that of the $Fe_3O_4/GCE$. The electrocatalytic ability of $Fe_3O_4$ was mainly attributed to the formation of Fe(VI) during the anodic scan, and its reduction to Fe(III) on the cathodic scan facilitated the sensing of CAP. The effects of pH and scan rate were measured to determine the optimum conditions at which the $Fe_3O_4/GCE$ exhibited the highest sensitivity with a lower detection limit. The reduction current for CAP was proportional to its concentration under optimized conditions in a range of $0.09-47{\mu}M$ with a correlation coefficient of 0.9919 and a limit of detection of $0.09{\mu}M$ (S/N=3). Moreover, the fabricated sensor exhibited anti-interference ability towards 4-nitrophenol, thiamphenicol, and 4-nitrobenzamide. The developed electrochemical sensor is a cost effective, reliable, and straightforward approach for the electrochemical determination of CAP in real time applications.

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