Publications by authors named "Chiravoot Pechyen"
Article Synopsis
- This study focuses on creating a screen-printed carbon electrode enhanced with silver and gold nanoparticles for detecting human serum albumin (HSA) using eco-friendly methods.
- Silver and gold nanoparticles were synthesized from pineapple peel extract and characterized with various techniques, showing sizes between 10 and 30 nm.
- The modified electrodes exhibited better electrochemical performance than standard electrodes and successfully detected HSA in concentrations ranging from 10 to 400 μg/mL.
Irreversible electroporation (IRE) is a prominent non-thermal ablation method widely employed in clinical settings for the focal ablation therapy of solid tumors. Utilizing high-voltage, short-duration electric pulses, IRE induces perforation defects in the cell membrane, leading to apoptotic cell death. Despite the promise of irreversible electroporation (IRE) in clinical applications, it faces challenges concerning the coverage of target tissues for ablation, particularly when compared to other thermal ablation therapies such as radiofrequency ablation, microwave ablation, and cryoablation.
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- Countries are increasingly decriminalizing or legalizing cannabis for recreational and medical use, with cannabinoids affecting various bodily functions and potentially posing public safety risks.
- There is a growing interest in developing rapid, accurate methods for detecting cannabinoids in oral fluid, which can show recent use compared to urine tests that indicate past consumption.
- Recent advancements focus on improving sensitivity and user-friendliness of analytical technologies for cannabinoid detection, emphasizing the role of oral fluid in point-of-care diagnostics.
This research aimed to prepare nonwovens from polylactic acid and polybutylene succinate using the melt-blown process while varying the melt-blown process parameters, including air pressure (0.2 and 0.4 MPa) and die-to-collector distance (15, 30, and 45 cm).
View Article and Find Full Text PDFThis work aimed to study the influence of the polybutylene succinate (PBS) content on the physical, thermal, mechanical, and chemical properties of the obtained polylactic acid (PLA)/PBS composite fibers. PLA/PBS blend fibers were prepared by a simple melt-blown process capable of yielding nanofibers. Morphological analysis revealed that the fiber size was irregular and discontinuous in length.
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- The study focuses on creating a new Nano-ink for detecting organophosphorus pesticides, particularly paraoxon, using non-enzymatic electrochemical sensors.
- The Nano-ink was developed from multi-walled carbon nanotubes, silicon carbide, and silver nanoparticles, mixed with chitosan for stability, and characterized using various advanced techniques.
- Results indicated that the Nano-ink showed strong electrochemical activity for paraoxon detection, with a wide detection range and low limits of quantitation and detection, making it effective for monitoring pesticide levels.
Monitoring the level of glycated hemoglobin (HbA1c) has become the gold standard measure for diabetes mellitus (DM) diagnosis and control, used in conjunction with fasting blood glucose (FBG) and oral glucose tolerance test. This study aimed to investigate the applicability of a newly developed nanoparticle-based electrochemical sensor-multiwalled nanotubes incorporated with gold nanoparticles (POCT-HbA1cMWCNTs/AuNPs)-used as a routine point-of-care test (POCT) for detection of HbA1c for the diagnosis of DM. Finger-prick and venous blood samples were collected from 108 DM and 98 non-DM subjects to determine HbA1c and total hemoglobin by POCT-HbA1cMWCNTs/AuNPs compared with the standard HPLC method.
View Article and Find Full Text PDFGreen synthesis is a new paradigm for the preparation of gold nanoparticles (AuNPs) due to its cost-effectiveness and favorable environmental impact. This study presented a simple phytosynthesis process for the preparation of AuNPs utilizing the aqueous peel extract of (SPE) (Anacardiaceae) as both a reducing and stabilizing agent. A visual color change from yellow to purple during the reaction implied the successful formation of SPE-AuNPs, which was confirmed by UV-vis spectroscopy.
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