K-carrageenan/PVA/nano-eggshell biocomposite-based non-enzymatic electrochemical biosensor for low-level urea detection
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, cilt.126, sa.11, 2020 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 126 Sayı: 11
- Basım Tarihi: 2020
- Doi Numarası: 10.1007/s00339-020-03960-1
- Dergi Adı: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex
- İstanbul Üniversitesi Adresli: Evet
Özet
As a comprehensive survey on both health and biosensor technologies, in this study, a non-enzymatic electrochemical biosensor based on kappa-carrageenan/PVA/nano-eggshell (K-carrageenan/PVA/nano-eggshell) biocomposite was prepared to detect low-level urea in phosphate-buffered solution (PBS). Novel K-carrageenan/PVA/nano-eggshell biocomposite was prepared by ultrasonics sonochemistry. The electrochemical biosensor showed a sensitivity of 0.018 mu A mu M-1 cm(-2)in a linear range of [250-1000] mu M urea. Urea detection limit of the biosensor was 60 mu M at room temperature.