Publications by authors named "Kenta Ogura"
Halichonic Acid B, a Rearranged Nitrogenous Bisabolene-Type Sesquiterpene from a Marine Sponge Axinyssa sp.
Chem Pharm Bull (Tokyo)
September 2021
A new rearranged nitrogenous bisabolone-type sesquiterpene, halichonic acid B (1), was isolated from a marine sponge Axinyssa sp. together with halichonic acid (2) and (6R,7S)-7-amino-7,8-dihydro-α-bisabolene (3). The structure of 1 was determined by extensive NMR and MS analyses, revealing an unprecedented carbon framework, and its absolute configuration was elucidated by time-dependent density-functional theory (TDDFT)-based electronic circular dichroism (ECD) spectrum calculation.
View Article and Find Full Text PDFArticle Synopsis
- A high-vacuum physical vapor deposition (PVD) process was utilized to grow polypeptide chains on gold surfaces, with real-time monitoring through surface plasmon resonance spectroscopy (SPR).
- The study successfully polymerized N-carboxy anhydride of benzyl-L-glutamate (BLG-NCA) to create grafted polybenzyl-L-glutamate (PBLG) films, with thicknesses reaching up to 30 nm.
- Various deposition methods for 2-aminoethanethiol (AET) were tested, revealing that the surface density and orientation of PBLG chains influenced the films' secondary structures and morphological properties as analyzed by SPR, FT-IR, and AFM techniques.