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How can we utilized chemistry knowledge to detect pesticides? The research group of Assoc. Prof. Boosayarat Tomapatanaget developed a biosensor based on graphene quantum dot and enzymes in hydrogel (GQDs/Enz/Gels) to detect organophosphate pesticides via two enzymes, acetylcholinesterase and cholinesterase. In a typical condition, these enzymes produce hydrogen peroxide, which decrease the fluorescence signal of …

graphene quantum dots for detection of organophosphate pesticides Read More »

Weedy rice, particularly paddy seed, is difficult to handle and separate because it has characteristics (morphological likeness) similar to those cultivated rice. This research describes a modification of self-organizing maps (SOMs) for categorizing weedy rice from cultivated rice using near-infrared spectroscopy (NIR) on paddy seed in situ. Optical microscope and thermogravimetric analysis were employed to …

Non-destructive method for discrimination of weedy rice using near infrared spectroscopy and modified self-organizing maps (SOMs) Read More »

Understanding the structure and function of proteins in the coronavirus (COVID-19) is crucial to the drug development. The 3C-like main protease from SARS-CoV-2 is a key protein that can potentially be used as a drug target molecule. This protein plays a crucial role in the viral proliferation and replication. There have been shown that protein …

Effect of pH on stability of dimer structure of the main protease of coronavirus-2 Read More »