- 标题
- 摘要
- 关键词
- 实验方案
- 产品
-
Sol-gel assisted spin coated CdS/PS electrode based glucose biosensor
摘要： Excellent economic prospects and fascinating potential for basic research have led to many sensor designs and detection principles for biosensing of glucose. A novel electrochemical biosensor incorporating Cadmium Sulphide/Porous Silicon (CdS/PS) electrode to enhance electrochemical reaction has been investigated. CdS/PS electrode was fabricated and its electrochemical properties were studied by Cyclic voltammetry (CV), Electrochemical impedance spectroscopy (EIS) and Chronoamperometry. The result indicated that the CdS/PS electrode material has good electrochemical properties. The optimized sensor exhibits unique sensing performance towards glucose detection. The versatility of the sensor is shown by the detection limit down to 610 μM with a quick response time of 10 s and a good linear range from 10 to 100 mM. The results showed that the fabricated electrode was sensitive and stable in detecting glucose, indicating that CdS/PS electrode was a good candidate material for the design of glucose biosensor.
关键词： electrochemical studies,CdS/PS electrode,glucose biosensor
更新于2025-09-23 15:23:52
-
A Multipurpose Conjugated Polymer: Electrochromic Device and Biosensor Construction for Glucose Detection
摘要： First example of electrochemically polymerized thiazolothiazole containing electrochromic conducting polymer;Poly(2,5-di(furan-2-yl)thiazolo[5,4-d]thiazole) (PTTzFr) was obtained via cyclic voltammetry. The polymer structure bears furan unit as the donor and thiazolothiazole unit as the acceptor. PTTzFr film was obtained on an ITO coated glass slide and its electrochemical and optoelectronic properties were investigated. Polymeric film showed reversible redox behavior along with reversible electrochromic behavior from reddish orange to grey having a band gap value of 1.80 eV. It has fast switching times (0.3 s and 0.4 s) with high optical contrast values at visible and NIR regions (38% at 460 nm and 63% at 1225 nm). Optoelectronic device application was performed by constructing a dual type electrochromic device (ECD) with poly(3,4-ethylenedioxythiophene) (PEDOT). Resulting device showed a remarkable optical memory without changing its % transmittance value during 200 s at 450 nm. Additionally, to construct a sensing interface, in the present work, a conjugated polymer (PTTzFr) containing biosensor was constructed for the glucose analysis. The architecture showed a promising sensing system for biosensor application. For the preparation of the proposed sensor, polymer film was coated on graphite electrode surface and fabricated as a glucose biosensor with immobilization of glucose oxidase. The biosensor was successfully applied for the determination of glucose in beverage. Under optimized conditions, the proposed sensor served a low detection limit (12.8 × 10?3 mM), and high sensitivity (65.44 μAmM?1cm?2). To the best of our knowledge, a sensor design and ECD construction using electrochemically polymerized PTTzFr that shows superior properties for both systems were attempted for the first time, and this approach resulted in improved biosensor and ECD characteristics.
关键词： thiazolothiazole containing conducting polymer,electrochromic device,electrochromic polymer,Amperometric biosensor,glucose biosensor
更新于2025-09-10 09:29:36