Polycarbazole modified carbon fiber microelectrode: Surface characterization and dopamine sensor
Yükleniyor...
Dosyalar
Tarih
2009
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Korean Fiber Soc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Electropolymerization of carbazole (Cz) by cyclic voltammetry (CV) onto carbon fiber microelectrodes (CFME) (diameter similar to 7 A mu m) in dichloromethane (CH2Cl2) solution of 0.1 mol center dot dm(-3) tetraethyl ammonium perchlorate (TEAP) results in the formation of polycarbazole (PCz) thin film coatings. CV results showed that these PCz thin films have reversible redox behavior in monomer-free electrolyte solution. The resulting thin polymer films were characterized using Fourier transform infrared attenuated total reflectance spectroscopy (FTIR-ATR) and atomic force microscopy (AFM). Results performed at optimum experimental conditions indicate that electrodes show a reversible and stable behavior over sixty eight days of testing for dopamine in 100 A mu mol center dot dm(-3) buffer solution. A detection limit for PCz thin films as low as 0.1 A mu M (3S/N) was obtained for the polycarbazole (PCz) thin films formed using CV. Hence, this novel sensor can be considered as promising sensor for dopamine detection.
Açıklama
Anahtar Kelimeler
Poly(carbazole), Carbon fiber microelectrode, Cyclic voltammetry, Dopamine, Atomic force microscope, Electrochemical Impedance Spectroscopy, Thin-Films, Carbazole, Copolymer, Polymers, Pyrrole, Thiophene
Kaynak
Fibers and Polymers
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
10
Sayı
1
