Formation and structure of the potassium complex of valinomycin in solution studied by Raman optical activity spectroscopy

2010 ◽  
Vol 12 (36) ◽  
pp. 11021 ◽  
Author(s):  
Shigeki Yamamoto ◽  
Michal Straka ◽  
Hitoshi Watarai ◽  
Petr Bouř
Keyword(s):  
Optical Activity ◽  
Raman Optical Activity ◽  
Potassium Complex

Structural characterization of proteins and viruses using Raman optical activity

2004 ◽  
Vol 35 (1-2) ◽  
pp. 87-92 ◽  
Author(s):  
Ewan W Blanch ◽  
Iain H McColl ◽  
Lutz Hecht ◽  
Kurt Nielsen ◽  
Laurence D Barron
Keyword(s):  
Optical Activity ◽  
Structural Characterization ◽  
Raman Optical Activity

scholarly journals Recognition of the true and false resonance Raman optical activity

2021 ◽  
Author(s):  
Malgorzata Baranska ◽  
Ewa Machalska ◽  
Grzegorz Zajac ◽  
Aleksandra J. Wierzba ◽  
Josef Kapitán ◽  
...  
Keyword(s):  
Optical Activity ◽  
Resonance Raman ◽  
Raman Optical Activity

scholarly journals Recognition of the true and false resonance Raman optical activity

2021 ◽  
Author(s):  
Malgorzata Baranska ◽  
Ewa Machalska ◽  
Grzegorz Zajac ◽  
Aleksandra J. Wierzba ◽  
Josef Kapitán ◽  
...  
Keyword(s):  
Optical Activity ◽  
Resonance Raman ◽  
Raman Optical Activity

Vibrational Raman Optical Activity of α-Lactalbumin: Comparison with Lysozyme, and Evidence for Native Tertiary Folds in Molten Globule States

1995 ◽  
Vol 254 (4) ◽  
pp. 747-760 ◽  
Author(s):  
Gary Wilson ◽  
Steven J. Ford ◽  
Alan Cooper ◽  
Lutz Hecht ◽  
Zai Q. Wen ◽  
...  
Keyword(s):  
Optical Activity ◽  
Molten Globule ◽  
Raman Optical Activity

Raman Optical Activity Probing Structural Deformations of the 4-Hydroxycinnamyl Chromophore in Photoactive Yellow Protein

2013 ◽  
Vol 4 (8) ◽  
pp. 1322-1327 ◽  
Author(s):  
Takahito Shingae ◽  
Kensuke Kubota ◽  
Masato Kumauchi ◽  
Fumio Tokunaga ◽  
Masashi Unno
Keyword(s):  
Optical Activity ◽  
Photoactive Yellow Protein ◽  
Raman Optical Activity ◽  
Structural Deformations

scholarly journals All-dielectric chiral-field-enhanced Raman optical activity

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Ting-Hui Xiao ◽  
Zhenzhou Cheng ◽  
Zhenyi Luo ◽  
Akihiro Isozaki ◽  
Kotaro Hiramatsu ◽  
...  
Keyword(s):  
Optical Activity ◽  
Metallic Nanoparticles ◽  
Near Field ◽  
Localized Surface Plasmon ◽  
Chiral Field ◽  
Resonance Spectroscopy ◽  
Conformational Structure ◽  
Dark Mode ◽  
Spontaneous Raman Scattering ◽  
Raman Optical Activity

AbstractRaman optical activity (ROA) is effective for studying the conformational structure and behavior of chiral molecules in aqueous solutions and is advantageous over X-ray crystallography and nuclear magnetic resonance spectroscopy in sample preparation and cost performance. However, ROA signals are inherently minuscule; 3–5 orders of magnitude weaker than spontaneous Raman scattering due to the weak chiral light–matter interaction. Localized surface plasmon resonance on metallic nanoparticles has been employed to enhance ROA signals, but suffers from detrimental spectral artifacts due to its photothermal heat generation and inability to efficiently transfer and enhance optical chirality from the far field to the near field. Here we demonstrate all-dielectric chiral-field-enhanced ROA by devising a silicon nanodisk array and exploiting its dark mode to overcome these limitations. Specifically, we use it with pairs of chemical and biological enantiomers to show >100x enhanced chiral light–molecule interaction with negligible artifacts for ROA measurements.

scholarly journals Establishing the link between fibril formation and Raman optical activity spectra of insulin

2017 ◽  
Vol 19 (21) ◽  
pp. 13614-13621 ◽  
Author(s):  
Jiří Kessler ◽  
Shigeki Yamamoto ◽  
Petr Bouř
Keyword(s):  
Molecular Dynamics ◽  
Optical Activity ◽  
Density Functional ◽  
Fibril Formation ◽  
Raman Optical Activity ◽  
Insulin Fibrils

Molecular dynamics and density functional simulations are used to explain changes in Raman optical activity accompanying the formation of insulin fibrils.

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