A new insight into the interaction of cisplatin with DNA: ROA spectroscopic studies on the therapeutic effect of the drug

The Analyst ◽  
2016 ◽  
Vol 141 (1) ◽  
pp. 291-296 ◽  
Author(s):  
M. Gąsior-Głogowska ◽  
K. Malek ◽  
G. Zajac ◽  
M. Baranska
Keyword(s):  
Therapeutic Effect ◽  
Optical Activity ◽  
Spectroscopic Studies ◽  
Raman Optical Activity ◽  
First Time ◽  
Insight Into

Raman optical activity (ROA) spectroscopy has been applied for the first time to study the interaction of cisplatin with DNA.

scholarly journals Localized molecular orbitals for calculation and analysis of vibrational Raman optical activity

2018 ◽  
Vol 20 (45) ◽  
pp. 28751-28758 ◽  
Author(s):  
Sandra Luber
Keyword(s):  
Optical Activity ◽  
Molecular Orbitals ◽  
Localized Molecular Orbitals ◽  
Raman Optical Activity ◽  
Chiral Systems ◽  
Spectroscopic Signatures ◽  
Insight Into ◽  
The Way

First calculations of vibrational Raman optical activity based on localized molecular orbitals are presented, which pave the way for novel insight into spectroscopic signatures of chiral systems.

Stokes Mueller Treatment of Artifacts in Natural Raman Optical Activity

1987 ◽  
Vol 41 (2) ◽  
pp. 295-307 ◽  
Author(s):  
L. Hecht ◽  
B. Jordanov ◽  
B. Schrader
Keyword(s):  
Raman Scattering ◽  
Optical Activity ◽  
Linear Birefringence ◽  
Chiral Molecules ◽  
Sample Cell ◽  
Raman Optical Activity ◽  
Angle Scattering ◽  
The Matrix ◽  
Phase Sensitive ◽  
First Time

A description of Raman scattering based on the theory by Barron and on Stokes Mueller formalism was developed into a uniform mathematical calculus such that Raman scattering can now be easily represented by a simple phenomenological matrix. This matrix, the Mueller matrix of a modulator driven by a square-wave voltage, and the matrix for a laser regarded as a fictitious polarizer are presented for the first time. With the use of these three matrices and the ones for the analyzer, the polarizer, the linearly birefringent sample cell, the circularly birefringent sample, and the partially polarizing detector, the main reasons for the appearance of artifacts in Raman optical activity have been identified. On the basis of a calculation for right-angle scattering of an isotropic solution of chiral molecules, sources of artifacts appear to be the linear birefringence of the cell walls and of the modulator material. Phase-sensitive detection is found to observe Raman optical activity with a minimal number of artifacts.

New Insight into Solution Structure and Dynamics of Proteins, Nucleic Acids, and Viruses from Raman Optical Activity

2002 ◽  
pp. 34-49
Author(s):  
L. D. Barron ◽  
E. W. Blanch ◽  
A. F. Bell ◽  
C. D. Syme ◽  
L. Hecht ◽  
...  
Keyword(s):  
Nucleic Acids ◽  
Optical Activity ◽  
Solution Structure ◽  
Structure And Dynamics ◽  
Raman Optical Activity ◽  
Insight Into

scholarly journals New insight into the pH-dependent conformational changes in bovine β-lactoglobulin from Raman optical activity

1999 ◽  
Vol 8 (6) ◽  
pp. 1362-1367 ◽  
Author(s):  
Ewan W. Blanch ◽  
Lutz Hecht ◽  
Laurence D. Barron
Keyword(s):  
Optical Activity ◽  
Conformational Changes ◽  
Raman Optical Activity ◽  
Ph Dependent ◽  
Β Lactoglobulin ◽  
Insight Into

New Insight into the Solution Structures of Wheat Gluten Proteins from Raman Optical Activity†

Biochemistry ◽  
2003 ◽  
Vol 42 (19) ◽  
pp. 5665-5673 ◽  
Author(s):  
Ewan W. Blanch ◽  
Donald D. Kasarda ◽  
Lutz Hecht ◽  
Kurt Nielsen ◽  
Laurence D. Barron
Keyword(s):  
Optical Activity ◽  
Wheat Gluten ◽  
Gluten Proteins ◽  
Solution Structures ◽  
Raman Optical Activity ◽  
Insight Into

Substituent effect in theoretical ROA spectra

RSC Advances ◽  
2016 ◽  
Vol 6 (47) ◽  
pp. 40760-40764 ◽  
Author(s):  
Piotr F. J. Lipiński ◽  
Jan Cz. Dobrowolski
Keyword(s):  
Optical Activity ◽  
Substituent Effect ◽  
Substituent Effects ◽  
Correlational Study ◽  
Raman Optical Activity ◽  
First Time

A correlational study of theoretical Raman Optical Activity spectra shows for the first time substituent effects on ROA intensity.

Insight into vibration mode-resolved plasmon enhanced Raman optical activity

2014 ◽  
Vol 415 ◽  
pp. 165-168 ◽  
Author(s):  
Yongqing Li ◽  
ShaoXiang Sheng ◽  
Zhenglong Zhang ◽  
Liwei Liu ◽  
Mengtao Sun
Keyword(s):  
Optical Activity ◽  
Vibration Mode ◽  
Raman Optical Activity ◽  
Insight Into

Aleksey Peshkov as an editor of Samarskaya Gazeta

2020 ◽  
pp. 128-138
Author(s):  
A. S. Bik-Bulatov
Keyword(s):  
Local History ◽  
Organizational Skills ◽  
First Time ◽  
New Evidence ◽  
Insight Into ◽  
Shed Light

The article uses little known letters of M. Gorky, many of which were published for the first time in 1997, as well as findings of Samara-based experts in local history to shed light on the writer’s work as editor-in-chief of the Samarskaya Gazeta newspaper in 1895. The researcher introduces hitherto unstudied reminiscences of the journalist D. Linyov (Dalin) about this period, which reference a letter by Gorky, now lost. The paper details a newly discovered episode of Gorky’s professional biography as a journalist: it concerns his campaign against a Samara ‘she-wolf,’ the madam of a local brothel A. Neucheva. Linyov’s reminiscences turn out to be an important and interesting source, offering an insight into the daily grind of the young editor Gorky, providing new evidence of his excellent organizational skills, and describing his moral and social stance. The author presents his work in the context of a recently initiated broader discussion about the need to map out all Russian periodicals for the period until 1917, as well as all research devoted to individual publications.

Green Synthesis and Spectroscopic Studies of Ag-rGO Nanocomposites for Highly Selective Mercury (II) Sensing

2018 ◽  
Vol 9 (1) ◽  
pp. 101-108 ◽  
Author(s):  
Shubhangi J. Mane-Gavade ◽  
Sandip R. Sabale ◽  
Xiao-Ying Yu ◽  
Gurunath H. Nikam ◽  
Bhaskar V. Tamhankar
Keyword(s):  
Green Synthesis ◽  
Color Change ◽  
Limit Of Detection ◽  
Aqueous Media ◽  
Suitable Condition ◽  
Cost Effective ◽  
Spectroscopic Studies ◽  
Calibration Plot ◽  
First Time

Introduction: Herein we report the green synthesis and characterization of silverreduced graphene oxide nanocomposites (Ag-rGO) using Acacia nilotica gum for the first time. Experimental: We demonstrate the Hg2+ ions sensing ability of the Ag-rGO nanocomposites form aqueous medium. The developed colorimetric sensor method is simple, fast and selective for the detection of Hg2+ ions in aqueous media in presence of other associated ions. A significant color change was noticed with naked eye upon Hg2+ addition. The color change was not observed for cations including Sr2+, Ni2+, Cd2+, Pb2+, Mg2+, Ca2+, Fe2+, Ba2+ and Mn2+indicating that only Hg2+ shows a strong interaction with Ag-rGO nanocomposites. Under the most suitable condition, the calibration plot (A0-A) against concentration of Hg2+ was linear in the range of 0.1-1.0 ppm with a correlation coefficient (R2) value 0.9998. Results & Conclusion The concentration of Hg2+ was quantitatively determined with the Limit of Detection (LOD) of 0.85 ppm. Also, this method shows excellent selectivity towards Hg2+ over nine other cations tested. Moreover, the method offers a new cost effective, rapid and simple approach for the detection of Hg2+ in water samples.

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
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