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Abstract
Poly(2–aminobenzylamine)/single wall carbon nanotube (P2ABA/SWNTS) thin films were fabricated for the detection of UA by using electrochemical surface plasmon resonance spectroscopy (EC–SPR) technique. The suspension of 0.01% wt of carboxylated SWNTSs was assembled on the polymer film because of the electrostatic and van der Waals interactions between the ‒COOH and ‒NH2. The P2ABA/SWNTS thin film formation on gold electrode was studied by EC–SPR technique. In this work, uric acid was detected by EC–SPR in PBS buffer comparing with the interference response with ascorbic acid. EC–SPR uric acid sensor using P2ABA/SWNTS thin film can be applied for the detection of uric acid in urine.
Acknowledgments
The authors gratefully acknowledge the “Global Circus” Program of Niigata University supported by the Ministry of Education, Culture, Sports, Science and Technology; the Center of Innovation in Chemistry (PERCH–CIC); Department of Chemistry, Faculty of Science, Chiang Mai University and Graduate School Chiang Mai University, Thailand; and the National Research University Project under Thailand's Office of the Higher Education Commission for financial support.