scholarly journals Ultra-sensitive amplitude engineering and sign reversal of circular dichroism in quasi-3D chiral nanostructures

2021 ◽  
Author(s):  
Wei Wei ◽  
Shanshan Chen ◽  
Chang-Yin Ji ◽  
Shuqi Qiao ◽  
Honglian Guo ◽  
...  
2020 ◽  
Vol 31 (44) ◽  
pp. 445302
Author(s):  
Zhimin Jing ◽  
Qi Li ◽  
Yu Bai ◽  
Ying Li ◽  
Zhongyue Zhang

1983 ◽  
Vol 38 (11-12) ◽  
pp. 951-959 ◽  
Author(s):  
C. Schamagl ◽  
E. Köst-Reyes ◽  
S. Schneider ◽  
H.-P. Köst ◽  
H. Scheer

The circular dichroism of bilipeptides from Spirulina geitleri phycocyanin is strongly solvent and pH dependent. Maximum optical activity has been observed in aqueous solutions containing urea (8 ᴍ). In aqueous buffer, a sign reversal occurred upon the change from neutral to acidic pH; in methanolic solutions shows the optical activity a strong pH dependence both with respect to sign and magnitude. These findings have been rationalized by the presence of chrom ophorepeptide interactions, which are minimized in the presence of urea. M olecular orbital calculations indicate that the observed sign reversal is not necessarily due to a reversal of the chirality of the entire chromophore, but may also result from more localized conform ational changes


2019 ◽  
Vol 448 ◽  
pp. 76-81 ◽  
Author(s):  
Hailong Liu ◽  
Zhencheng Shang ◽  
Xijun Wu ◽  
Ceng Dou ◽  
Jibin Zhang

Nanoscale ◽  
2016 ◽  
Vol 8 (6) ◽  
pp. 3720-3728 ◽  
Author(s):  
Li Hu ◽  
Xiaorui Tian ◽  
Yingzhou Huang ◽  
Liang Fang ◽  
Yurui Fang

We quantitatively analyzed the extrinsic plasmonic chirality by tracking the interplay of electric and magnetic modes which causes mixed electric and magnetic polarizability and responses for the CD.


Nano Letters ◽  
2009 ◽  
Vol 9 (11) ◽  
pp. 3945-3948 ◽  
Author(s):  
V. K. Valev ◽  
N. Smisdom ◽  
A. V. Silhanek ◽  
B. De Clercq ◽  
W. Gillijns ◽  
...  

2018 ◽  
Vol 6 (14) ◽  
pp. 1800153 ◽  
Author(s):  
Joel T. Collins ◽  
Xuezhi Zheng ◽  
Nuno V. S. Braz ◽  
Eli Slenders ◽  
Shuai Zu ◽  
...  

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