Journal of Raman Spectroscopy

Cover image for Vol. 47 Issue 4

Impact Factor: 2.671

ISI Journal Citation Reports © Ranking: 2014: 11/44 (Spectroscopy)

Online ISSN: 1097-4555

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Recently Published Articles

  1. Raman mode-selective spectroscopic imaging of coenzyme and enzyme redox states

    Min Gu and H. Peter Lu

    Article first published online: 22 APR 2016 | DOI: 10.1002/jrs.4915

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    Surface-enhanced Raman scattering spectra of flavin mononucleotide (FMN) in different redox states, and in a redox active enzyme, nitric oxide synthase are studied. Incubated with silver nanoparticles coated with silica, spectra for oxidized and reduced FMN are obtained at different electrochemical potentials. Dominate Raman mode shifting belonging to typical redox-sensitive region of FMN is observed and analyzed.

  2. Composition and spectroscopic properties of historic Cr logwood inks

    Silvia A. Centeno, Maddalena Bronzato, Polonca Ropret, Alfonso Zoleo, Alfonso Venzo, Sara Bogialli and Denis Badocco

    Article first published online: 20 APR 2016 | DOI: 10.1002/jrs.4938

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    Cr logwood inks prepared following variations of a mid-19th century recipe were characterized by Raman spectroscopy, Fourier transform infrared spectroscopy, liquid chromatography–diode array detection–quadrupole time-of-flight–mass spectrometry, and liquid chromatography–inductively coupled plasma–mass spectrometry to determine their composition and to obtain Raman spectra for their identification in artworks and in historic documents. The Raman spectral references were used to characterize the ink used by van Gogh in Street in Saintes-Maries-de-la-Mer.

  3. Micro-Raman spectroscopy investigation of the carbonation reaction in a lime paste produced with a traditional technology

    Radek Ševčík, Petra Mácová, Konstantinos Sotiriadis, Marta Pérez-Estébanez, Alberto Viani and Petr Šašek

    Article first published online: 20 APR 2016 | DOI: 10.1002/jrs.4929

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    In order to investigate the carbonation reaction in a lime paste produced with a traditional technology, micro-Raman spectroscopy has been performed over transversal cross sections. The transformation of calcium hydroxide to calcium carbonate was visualised using Raman Imaging that allowed highly accurate description of the carbonation process in traditional lime systems. Micro-Raman maps of calcite intensities of the lime paste specimens aged for 1 (a), 3 (b), 5 (c) and 12 (d) weeks.

  4. Surface-enhanced Raman scattering characterization of monohydroxylated polymethoxyflavones

    Changchu Ma, Hang Xiao and Lili He

    Article first published online: 20 APR 2016 | DOI: 10.1002/jrs.4932

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    The different positions of hydroxylation in the structure of polymethoxyflavones were critical for determining the spatial conformation of polymethoxyflavones on binding sites, resulting in different binding affinities and the saturation points, therefore their SERS behaviors. 5-Hydroxylnobiletin exhibited the highest binding affinity and the lowest saturation concentration mainly because of the stronger interaction to Ag through chelation. 3′-Hydroxylnobiletin produced the lowest binding affinity primarily resulted from highly disorder of molecular conformation.

  5. Molecular approach to phase transitions in a calamitic ester substituted aroylhydrazone liquid crystal

    Rajib Nandi, Sachin Kumar Singh, Hemant Kumar Singh, D. S. Shankar Rao, S. Krishna Prasad, Bachcha Singh and Ranjan K. Singh

    Article first published online: 20 APR 2016 | DOI: 10.1002/jrs.4933

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    A temperature-dependent Raman spectroscopic study in conjunction with XRD and DFT calculations of an ester-substituted aryolhydrazone liquid crystal has been done to explore structural modification and molecular arrangement during phase transitions. The hydrogen bonds between the amide groups are weakened at crystal I [RIGHTWARDS ARROW] crystal II phase transition and reduce considerably with small residue at crystal II [RIGHTWARDS ARROW] SmC phase transition. The presence of hydrogen bonding between amide groups is responsible for tilting arrangement in SmC phase.