Publications by authors named "Qintao Zhou"
In order to solve the poor structural stability of graphene oxide (GO) membrane, a facile and effective cross-linking technology was employed to create a high-performance GO membrane. Herein, DL-Tyrosine/amidinothiourea and (3-Aminopropyl) triethoxysilane were used to crosslink GO nanosheets and porous alumina substrate, respectively. The group evolution of GO with different cross-linking agents was detected via Fourier transform infrared spectroscopy.
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- A new alkaloid named picrasine A and two new quassinoids called picralactones A and B were discovered in the plant Picrasma chinensis P.Y. Chen, along with eleven known compounds.
- The structures of these compounds were identified using advanced techniques like NMR, HR-ESI-MS, and IR spectroscopy, along with comparisons to existing literature.
- Although some of the compounds were tested for their ability to inhibit tyrosinase, none showed significant inhibitory effects.
Article Synopsis
- Five new labdane diterpenoids (Stevelins A-E) and three known labdane diterpenoids were identified from the plant Stevia rebaudiana.
- The structures of these compounds were determined using NMR spectroscopy, high-resolution mass spectrometry, and X-ray crystallography, with additional insights from electronic circular dichroism calculations.
- Most of the isolated compounds showed significant effects in inhibiting foam cell formation induced by oxidized low-density lipoprotein, indicating their potential as treatments for atherosclerosis.