Sonochemical approach to the synthesis of metal tungstate/nafion composite with electrocatalytic properties and its electrochemical sensing performance |
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| Institution: | 1. Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan;2. Research and Development Center for Smart Textile Technology, National Taipei University of Technology, Taipei 106, Taiwan;3. Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;4. Division of Pulmonary and Critical Care Medicine, Taitung MacKay Memorial Hospital, MacKay Memorial Hospital, MacKay Junior College of Medicine, Nursing, and Management, Taipei, Taiwan;5. Department of Emergency Medicine, Mackay Memorial Hospital, Taipei, Taiwan;6. The Graduate Institute of Manufacturing Technology (GIMT), National Taipei University of Technology, Taipei 106, Taiwan (ROC);7. Institute of Mechatronic Engineering, National Taipei University of Technology, Taipei, Taiwan;8. Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia |
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| Abstract: | High-intensity ultrasound can be used to produce novel materials, offering an atypical pathway to recognized products without high bulk temperatures, high pressures, or long reaction times. A highly sensitive and selective robust modified sensor was developed using a composition of electrochemically active strontium metal (Sr) based tungstate interconnected with nafion polymer through a facile sonochemical approach. In addition, multiple parameters are important for sonochemical methods and specifically nanomaterial or electrocatalyst development during the ultrasonic irradiation. Moreover, high-intensity ultrasonic probe (Ti-horn) was used to synthesis of nanomaterial at 50 kHz and 200 W. The SrWO4/nafion was characterized via FESEM, EDX and XRD methods. 8-HD-guanosine (8-hydroxydeoxyguanosine) is one of the major byproduct of deoxyribonucleic acid (DNA) oxidation. The concentrations of 8-HD-guanosine within a cell are a measurement of oxidative stress in body and however its excess level in body causes carcinogenic threats. Therefore, the quantification of 8-HD-guanosine in biological samples with high sensitivity is of great significance. The SrWO4/nafion modified sensor displayed low detection of 14.36 nM and wide linear range (0.025–398.6 µM), compare to previous reports. |
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| Keywords: | Sonochemical approach Electrochemical detection Micro-rods Nafion polymer Oxidative stress biomarker |
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