scholarly journals Experimental demonstration of the microscopic origin of circular dichroism in two-dimensional metamaterials

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
A. B. Khanikaev ◽  
N. Arju ◽  
Z. Fan ◽  
D. Purtseladze ◽  
F. Lu ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Two Dimensional ◽  
Experimental Demonstration ◽  
Circular Dichroïsm ◽  
Microscopic Origin

Two-dimensional Imaging of a Model Pharmaceutical Dosage Tablet Using a Scanning Vibrational Circular Dichroism System

2021 ◽  
Author(s):  
Hisako Sato ◽  
Sumio Aisawa ◽  
Honoka Ida ◽  
Masaru Shimizu ◽  
Keisuke Watanabe ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Vibrational Circular Dichroism ◽  
Two Dimensional ◽  
Circular Dichroïsm

scholarly journals Two New Spiro-Heterocyclic γ-Lactams from A Marine-Derived Aspergillus fumigatus Strain CUGBMF170049

Marine Drugs ◽  
2019 ◽  
Vol 17 (5) ◽  
pp. 289 ◽  
Author(s):  
Xiuli Xu ◽  
Jiahui Han ◽  
Yanan Wang ◽  
Rui Lin ◽  
Haijin Yang ◽  
...  
Keyword(s):  
Spectral Analysis ◽  
Circular Dichroism ◽  
Aspergillus Fumigatus ◽  
2D Nmr ◽  
Two Dimensional ◽  
One Dimensional ◽  
Helvolic Acid ◽  
Circular Dichroïsm

Two new spiro-heterocyclic γ-lactam derivatives, cephalimysins M (1) and N (2), were isolated from the fermentation cultures of the marine-derived fungus Aspergillus fumigatus CUGBMF17018. Two known analogues, pseurotin A (3) and FD-838 (4), as well as four previously reported helvolic acid derivatives, 16-O-propionyl-16-O-deacetylhelvolic acid (5), 6-O-propionyl-6-O-deacetylhelvolic acid (6), helvolic acid (7), and 1,2-dihydrohelvolic acid (8) were also identified. One-dimensional (1D), two-dimensional (2D) NMR, HRMS, and circular dichroism spectral analysis characterized the structures of the isolated compounds.

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