Journal
ULTRASONICS SONOCHEMISTRY
Volume 66, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.ultsonch.2019.104901
Keywords
Sonochemical approach; Electrochemical detection; Micro-rods; Nafion polymer; Oxidative stress biomarker
Categories
Funding
- King Saud University, Riyadh, Saudi Arabia [RSP-2019/108]
- Ministry of Science and Technology, Taiwan [MOST 106-2113-M-027-003]
- National Taipei University of Technology [NTUT-MMH-106-06, MMH-TT-10604]
- Mackay Memorial Hospital Joint Research Program [NTUT-MMH-106-06, MMH-TT-10604]
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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 mu M), compare to previous reports.
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