Ultrasonic energy-assisted preparation of β-cyclodextrin-carbon nanofiber composite: Application for electrochemical sensing of nitrofurantoin
| Autor: | Tamilarasan Sathesh, Shen-Ming Chen, T.S.T. Balamurugan, Paramasivam Balasubramanian, Muthaiah Annalakshmi |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Thermogravimetric analysis
Materials science Acoustics and Ultrasonics Composite number Nanofibers 02 engineering and technology 010402 general chemistry 01 natural sciences Inorganic Chemistry X-ray photoelectron spectroscopy Microscopy Electrochemistry Chemical Engineering (miscellaneous) Environmental Chemistry Radiology Nuclear Medicine and imaging Fourier transform infrared spectroscopy Electrodes Detection limit Carbon nanofiber beta-Cyclodextrins Organic Chemistry Hydrogen-Ion Concentration 021001 nanoscience & nanotechnology Carbon 0104 chemical sciences Electrochemical gas sensor Nitrofurantoin Ultrasonic Waves Chemical engineering 0210 nano-technology |
| Zdroj: | Ultrasonics Sonochemistry. 52:391-400 |
| ISSN: | 1350-4177 |
| DOI: | 10.1016/j.ultsonch.2018.12.014 |
| Popis: | A simple ultrasonic energy assisted synthesis of β-cyclodextrin (β-CD) supported carbon nanofiber composite (CNF) and its potential application in electrochemical sensing of antibiotic nitrofurantoin (NFT) is reported. The elemental composition and surface morphology of the β-CD/CNF composite was validated through Field emission scanning electron microscopy, energy dispersive X-ray microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and thermogravimetric analysis. The uniform enfolding of hydrophilic β-CD over CNF enhance the aqueous dispersion and offer abundant active surface to the β-CD/CNF composite. Further, the electrocatalytic efficacy of the β-CD/CNF composite is utilized to fabricate an electrochemical sensor for the high sensitive quantitative detection of NFT. Under optimized analytical conditions, the sensor displays a broad working range of 0.004–308 µM and calculated detection limit of 1.8 nM, respectively. In addition, the sensor showcased a good selectivity, storage, and working stability, with amiable reproducibility. The point-of-care applicability of the sensor was demonstrated with NFT spiked human blood serum and urine sample with reliable analytical performance. The simple, cost-effective NFT sensor based on β-CD/CNF offered outstanding analytical performance in real-world samples with higher reliability. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect