Journal of Raman Spectroscopy

Cover image for Vol. 45 Issue 4

April 2014

Volume 45, Issue 4

Pages 267–321

  1. Mini review

    1. Top of page
    2. Mini review
    3. Research articles
    1. Raman spectroscopy of M3B7O13X boracites (M = Cr,Co,Ni,Cu,Zn,Cd; X = Cl,Br,I) (pages 267–273)

      Milko N. Iliev and Hans Schmid

      Version of Record online: 3 MAR 2014 | DOI: 10.1002/jrs.4458

      Thumbnail image of graphical abstract

      Raman spectra of 16 single crystal boracites M3B7O13X (M = Cr,Co,Ni,Cu,Zn,Cd; X = Cl,Br,I) are studied over a broad temperature range covering different phases (cubic, orthorhombic, monoclinic, and trigonal. Special attention is paid to the temperature hysteresis near the transitions and the dependence of transition temperature on the direction of crystal growth for the same material.

  2. Research articles

    1. Top of page
    2. Mini review
    3. Research articles
    1. Distinguishing between renal oncocytoma and chromophobe renal cell carcinoma using Raman molecular imaging (pages 274–280)

      Shona Stewart, Heather Kirschner, Patrick J. Treado, Ryan Priore, Maria Tretiakova and Jeffrey K. Cohen

      Version of Record online: 16 MAR 2014 | DOI: 10.1002/jrs.4460

      Thumbnail image of graphical abstract

      Renal oncocytoma and chromophobe renal cell carcinoma are two different kidney cancers, with different outcomes, which are often confused using conventional histopathology. Raman molecular imaging has been shown to differentiate the two tumors with 86% sensitivity and 81% specificity, illustrated in a ROC curve with an AUROC of 0.87. Improved diagnoses of these cancers will impact patients and clinicians and lead to the application of RMI to other important diagnostic questions.

    2. SERS imaging of silver coated nanostructured Al and Al2O3 substrates. The effect of nanostructure (pages 281–291)

      Kamilla Malek, Agnieszka Brzózka, Anna Rygula and Grzegorz D. Sulka

      Version of Record online: 3 MAR 2014 | DOI: 10.1002/jrs.4452

      Thumbnail image of graphical abstract

      High reproducible surface-enhanced Raman scattering (SERS) substrates with the hexagonal arrays of nanopores or nanoconcaves are fabricated by anodization of aluminum and silver sputtering. Each substrate exhibits a strong and reproducible SERS signal of a probing molecule, while its variation across the chosen area is revealed by the Raman imaging technique.

    3. Preparation of SERS active Ag nanoparticles encapsulated by phospholipids (pages 292–298)

      Hyeun Hwan An, Won Bae Han, Yongdeok Kim, Hee-Soo Kim, Yoong Oh and Chong Seung Yoon

      Version of Record online: 20 MAR 2014 | DOI: 10.1002/jrs.4461

      Thumbnail image of graphical abstract

      A cost-effective way of fabricating lipid-coated SERS substrate having reproducible high SERS activity was proposed. The versatility of the proposed process was demonstrated by introducing different Raman dyes into the lipid layer for possible application in cellular imaging.

    4. Investigations on the geometrical isomers of astaxanthin: Raman spectroscopy of conjugated polyene chain with electronic and mechanical confinement (pages 299–304)

      Balaji Subramanian, Nadéjda Tchoukanova, Yahia Djaoued, Claude Pelletier, Mathieu Ferron and Jacques Robichaud

      Version of Record online: 10 MAR 2014 | DOI: 10.1002/jrs.4459

      Thumbnail image of graphical abstract

      Raman spectroscopic studies evidenced and distinguished the cis- and trans-isomers of astaxanthin. The di-cis-isomers were also identified

    5. Raman identification of lonsdaleite in Popigai impactites (pages 305–313)

      S. V. Goryainov, A. Y. Likhacheva, S. V. Rashchenko, A. S. Shubin, V. P. Afanas'ev and N. P. Pokhilenko

      Version of Record online: 20 MAR 2014 | DOI: 10.1002/jrs.4457

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      Raman and X-ray diffraction (XRD) methods were employed to characterize impact diamond–lonsdaleite-bearing rocks (Popigai crater, Siberia). Taken into account the features of typical Raman spectrum (with peak and two shoulders) at deconvolution, strong A1g and E2g bands of lonsdaleite are identified at varying wavenumbers 1292–1303 and 1219–1244 cm−1, respectively (calculated contours L1 and L2 in figure). Correlations between Raman and XRD data permit the estimation of lonsdaleite/diamond fraction by Raman method.

    6. Deformation history reconstruction using single quartz grain Raman microspectroscopy data (pages 314–321)

      Ágnes Skultéti, Tivadar M. Tóth, Krisztián Fintor and Félix Schubert

      Version of Record online: 2 MAR 2014 | DOI: 10.1002/jrs.4456

      Thumbnail image of graphical abstract

      Quartz is one of the most common minerals in the Earth's crust; its microstructure is sensitive to diverse deformation mechanisms. Thus, it may provide valuable information regarding the structural evolution of many different rock types. Using Raman microspectroscopy, single quartz grains and monomineralic domains characterized by different deformation conditions can be identified and separated. In this study, three microstructurally extreme quartz grain types were discriminated: grains with undulose extinction (T0), grains with subgrains (T1), and grains with recrystallized grains (T2).