화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.73, 106-117, May, 2019
DOI10.1016/j.jiec.2019.01.011  Export Citation
Exfoliated nanosheets of Co3O4 webbed with polyaniline nanofibers: A novel composite electrode material for enzymeless glucose sensing application
Mohamed A. Yassin1, Bishnu Kumar Shrestha1, 2, Rafiq Ahmad3, Sita Shrestha1, Chan Hee Park1, 2, †, and Cheol Sang Kim1, 2, †
  • 1Department of Bionanosystem Engineering, Graduate School, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
  • 2Division of Mechanical Design Engineering, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Republic of Korea
  • 3Sensors Lab, Electrical Engineering Program, Computer, Electrical and Mathematical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), 23955-6900, Saudi Arabia
E-mail:,
A novel glucose biosensor was designed using cobalt oxide (Co3O4) nanosheets patterned by π-conjugated polyaniline nanofibers (PANINFs). A facile synthesis process was conducted to obtain cost-effective and ecofriendly mesoporous Co3O4@PANINFs hybrid nanomaterial for the first time. The Co3O4@PANINFs on glassy carbon electrode (GCE), working as a biosensor electrode based on electrochemical technique, showed electrocatalytic activity to glucose with sensitivity of 14.25 μA mM-1cm-2, linear range from (0.1 to 8) mM, minimum detection limit of 0.06 mM, and response time <6 s. Moreover, the biosensor was employed to monitor glucose concentration in human serum sample to provide effective sensing results.
Keywords:Cobalt oxide;Polyaniline;Electrocatalyst;Polymerization;Mesoporous;Biosensor
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