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Discrimination between enantiomers is achieved by tip-enhanced Raman scattering using a silver tip that is chemically modified by an achiral para-mercaptopyridine (pMPY) probe molecule. Differences in the relative intensities of the pMPY spectra were monitored for three pairs of enantiomers containing hydroxy (–OH) and/or amino (–NH2) groups. The N: or N+–H functionality of the pMPY-modified …

Distinguishing enantiomers by tip-enhanced Raman scattering: Chemically modified silver tip with an asymmetric atomic arrangement Read More »

Our recent projects involve Disruptive technologies in comprehensive two-dimensional gas chromatography concepts under environmental-friendly approaches for improved separation power in comprehensive two dimensional gas chromatography (GCxGC). We have also established experimental design approach in GCxGC in order to guide column selection and optimize experimental conditions for specific applications using new stationary phases or multiple column …

Shimadzu-CST Young Chemist Award 2020 Read More »

Prof. Sumrit Wacharasindhu focuses on the discovery and development of new robust, convenient and environmentally friendly methods to prepare important organic compounds. We reach these goals by using the principles of green chemistry. The followings are the key themes of our research: Use of calcium carbide as feedstock: We replaced flammable acetylene gas, a major …

CST Distinguished Chemist Award 2020 (Organic Chemistry) Read More »

The popularity and high price of durian make quality control in terms of ripeness very important, which in turn depends heavily on harvesting at an appropriate maturity stage. To date, reports on data-driven methods for maturity prediction are scarce, with many rather focusing on ripeness prediction. Herein, we report the first disclosure of key molecular …

Investigation of key chemical species from durian peduncles and their correlations with durian maturity Read More »

Volatile compounds collected from human skins can involve a wide range of metabolic pathways in different sources such as secretions (sweat and oil) from eccrine, sebaceous or apocrine glands. Characteristic human body odors can be produced from apocrine glands mostly found in axillae, pubic and areolas. Alternatively, nonvolatile metabolites in secretions from the other glands …

A Novel Portable Device for Detection of COVID19 Related Samples Read More »