Micro Raman spectroscopy for monitoring alterations between human skin keratinocytes HaCaT and their tumorigenic derivatives A5RT3-toward a Raman characterization of a skin carcinoma model

2010 ◽  
Vol 41 (1) ◽  
pp. 16-26 ◽  
Author(s):  
P. Donfack ◽  
M. Rehders ◽  
K. Brix ◽  
P. Boukamp ◽  
A. Materny
Keyword(s):  
Raman Spectroscopy ◽  
Human Skin ◽  
Skin Carcinoma ◽  
Micro Raman Spectroscopy ◽  
Skin Keratinocytes ◽  
Raman Characterization

Micro-Raman Characterization of Unusual Defect Structure in Arsenic-Implanted Silicon

1999 ◽  
Vol 588 ◽  
Author(s):  
David D. Tuschel ◽  
James P. Lavine
Keyword(s):  
Raman Spectroscopy ◽  
Raman Spectra ◽  
Defect Structure ◽  
Optical Mode ◽  
Micro Raman Spectroscopy ◽  
Lattice Damage ◽  
Spatially Varying ◽  
Raman Characterization ◽  
Extensive Damage

AbstractRaman spectroscopy has often been used to study the damage to semiconductors induced by ion implantation. Off-axis, macro-Raman spectra reveal extensive damage to the silicon lattice, consistent with many literature reports. However, when the same samples were analyzed in the backscattering mode by micro-Raman spectroscopy, evidence was found for orientational dependent lattice damage and an unusual defect structure. P/O micro-Raman spectra reveal the spatially-varying appearance of a band between 505 and 510 cm−1 always accompanied by that of the silicon optical mode at 520 cm−1.

Micro-Raman Characterization of Arsenic-Implanted Silicon: Interpretation of the Spectra

1999 ◽  
Vol 588 ◽  
Author(s):  
James P. Lavine ◽  
David D. Tuschel
Keyword(s):  
Raman Spectroscopy ◽  
Raman Spectra ◽  
Room Temperature ◽  
Micro Raman Spectroscopy ◽  
Raman Characterization

AbstractRaman spectra were measured on arsenic-implanted silicon with micro-Raman spectroscopy in the backscattering mode and with macro-Raman spectroscopy. A peak is observed between 505 and 510 cm−1 with 488 and 514.5 nm excitation. This peak and a related peak from the substrate at about 520 cm−1 are seen in selected regions of the implanted samples when the implant dose is above 2 × 1014 As/cm2. These features may be due to a long room temperature anneal, as they are absent in recently prepared samples. Possible explanations for the features are presented.

XRD, SEM/EDX and micro-Raman spectroscopy for mineralogical and chemical characterization of iron slags from the Roman archaeological site of Forua (Biscay, North Spain)

2018 ◽  
Vol 138 ◽  
pp. 246-254 ◽  
Author(s):  
Haizea Portillo ◽  
Maria Cruz Zuluaga ◽  
Luis Angel Ortega ◽  
Ainhoa Alonso-Olazabal ◽  
Xabier Murelaga ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Chemical Characterization ◽  
Archaeological Site ◽  
Micro Raman Spectroscopy

scholarly journals Micro-Raman Spectroscopy, a Powerful Technique Allowing Sure Identification and Complete Characterization of Asbestiform Minerals

2019 ◽  
Vol 9 (15) ◽  
pp. 3092 ◽  
Author(s):  
Caterina Rinaudo ◽  
Alessandro Croce
Keyword(s):  
Raman Spectroscopy ◽  
Crystal Surface ◽  
Complete Characterization ◽  
Mineral Phase ◽  
Asbestos Fibers ◽  
Micro Raman Spectroscopy ◽  
Fibrous Minerals ◽  
Iron Sulphate ◽  
Asbestiform Minerals

Micro-Raman spectroscopy has been applied to fibrous minerals regulated as “asbestos”—anthophyllite, actinolite, amosite, crocidolite, tremolite, and chrysotile—responsible of severe diseases affecting mainly, but not only, the respiratory system. The technique proved to be powerful in the identification of the mineral phase and in the recognition of particles of carbonaceous materials (CMs) lying on the “asbestos” fibers surface. Also, erionite, a zeolite mineral, from different outcrops has been analyzed. To erionite has been ascribed the peak of mesothelioma noticed in Cappadocia (Turkey) during the 1970s. On the fibers, micro-Raman spectroscopy allowed to recognize many grains, micrometric in size, of iron oxy-hydroxides or potassium iron sulphate, in erionite from Oregon, or particles of CMs, in erionite from North Dakota, lying on the crystal surface. Raman spectroscopy appears therefore to be the technique allowing, without preparation of the sample, a complete characterization of the minerals and of the associated phases.

Characterization of GaAs heterolayers by micro-Raman spectroscopy

1995 ◽  
Vol 149 (3-4) ◽  
pp. 167-174 ◽  
Author(s):  
Masaya Ichimura ◽  
Yukihisa Moriguchi ◽  
Akira Usami ◽  
Masao Tabuchi ◽  
Akio Sasaki
Keyword(s):  
Raman Spectroscopy ◽  
Micro Raman Spectroscopy
Sign in / Sign up

Export Citation Format

Share Document