Two-photon circular dichroism of molecular structures simulating l-tryptophan residues in proteins with secondary structures

2014 ◽  
Vol 601 ◽  
pp. 6-12 ◽  
Author(s):  
Yuly Vesga ◽  
Carlos Diaz ◽  
Mary Higgs ◽  
Florencio E. Hernandez
Keyword(s):  
Circular Dichroism ◽  
Secondary Structures ◽  
Molecular Structures ◽  
Two Photon ◽  
Tryptophan Residues ◽  
Circular Dichroïsm

scholarly journals Theoretical study of two-photon circular dichroism on molecular structures simulating aromatic amino acid residues in proteins with secondary structures

RSC Advances ◽  
2014 ◽  
Vol 4 (105) ◽  
pp. 60974-60986 ◽  
Author(s):  
Yuly Vesga ◽  
Carlos Diaz ◽  
Florencio E. Hernandez
Keyword(s):  
Circular Dichroism ◽  
Comparative Analysis ◽  
Theoretical Study ◽  
Secondary Structures ◽  
Molecular Structures ◽  
Random Coil ◽  
Amino Acid Residues ◽  
Two Photon ◽  
Α Helix ◽  
Circular Dichroïsm

Calculation and comparative analysis of the theoretical two-photon circular dichroism (TPCD) spectra of l-His, l-Phe, and l-Tyr simulating residues in proteins with secondary structures (α-helix, β-strand and random coil), down to the far-UV region (FUV).

scholarly journals Межзонный двухфотонный линейно-циркулярный дихроизм в полупроводниках в приближении Кейна

2022 ◽  
Vol 56 (1) ◽  
pp. 61
Author(s):  
В.Р. Расулов ◽  
Р.Я. Расулов ◽  
Б.Б. Ахмедов ◽  
И.А. Муминов
Keyword(s):  
Circular Dichroism ◽  
Photon Absorption ◽  
Degree Of Polarization ◽  
Optical Transitions ◽  
Narrow Gap ◽  
Two Photon Absorption ◽  
Narrow Gap Semiconductors ◽  
Two Photon ◽  
Absorption Of Light ◽  
Circular Dichroïsm

Interband two-photon optical transitions are classified and expressions are obtained for the matrix elements in a narrow-gap semiconductor depending on the band parameters, degree of polarization, and light frequency. It is shown that the main contribution to two-photon linear-circular dichroism in narrow-gap semiconductors is made by optical transitions proceeding from the subband of light holes to the conduction band. The dependences of the partial coefficients of interband two-photon absorption of light, which differ from each other by the types of optical transitions, are analyzed depending on the degree of polarization of the light, and a quantitative analysis of the coefficient of linear-circular dichroism of two-photon absorption of light is carried out. Expressions are obtained for the spectral dependence of the coefficient of interband two-photon absorption of light in narrow-gap semiconductors in the Kane model.

scholarly journals Characterization of folded conformations in a tetrapeptide containing two tryptophan residues by vibrational circular dichroism

Chirality ◽  
2009 ◽  
Vol 21 (1E) ◽  
pp. E76-E85 ◽  
Author(s):  
Ana G. Petrovic ◽  
Prasad L. Polavarapu ◽  
R. Mahalakshmi ◽  
P. Balaram
Keyword(s):  
Circular Dichroism ◽  
Vibrational Circular Dichroism ◽  
Tryptophan Residues ◽  
Circular Dichroïsm

Theory for Vibrationally Resolved Two-Photon Circular Dichroism Spectra. Application to (R)-(+)-3-Methylcyclopentanone†

2009 ◽  
Vol 113 (16) ◽  
pp. 4198-4207 ◽  
Author(s):  
Na Lin ◽  
Fabrizio Santoro ◽  
Antonio Rizzo ◽  
Yi Luo ◽  
Xian Zhao ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Circular Dichroism Spectra ◽  
Two Photon ◽  
Circular Dichroïsm
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