Characterization of Large Amyloid Fibers and Tapes with Fourier Transform Infrared (FT-IR) and Raman Spectroscopy

2013 ◽  
Vol 67 (12) ◽  
pp. 1417-1426 ◽  
Author(s):  
Devin M. Ridgley ◽  
Elizabeth C. Claunch ◽  
Justin R. Barone
Keyword(s):  
Raman Spectroscopy ◽  
Fourier Transform ◽  
Fourier Transform Infrared ◽  
Amyloid Fibers ◽  
Ir And Raman Spectroscopy ◽  
Ft Ir ◽  
Ir And Raman

scholarly journals Evaluation of Salmon Adhesion on PET-Metal Interface by ATR, FT-IR, and Raman Spectroscopy

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
E. Zumelzu ◽  
M. J. Wehrhahn ◽  
F. Rull ◽  
H. Pesenti ◽  
O. Muñoz ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Structural Changes ◽  
Polymer Coatings ◽  
New Production ◽  
Ir And Raman Spectroscopy ◽  
Chromium Vi ◽  
Physical Tests ◽  
Ft Ir ◽  
Ir And Raman

The material employed in this study is an ecoefficient, environmentally friendly, chromium (VI)-free (noncarcinogenic) metal polymer. The originality of the research lies in the study of the effect of new production procedures of salmon on metal packaging with multilayer polyethylene terephthalate (PET) polymer coatings. Our hypothesis states that the adhesion of postmortem salmon muscles to the PET polymer coating produces surface and structural changes that affect the functionality and limit the useful life of metal containers, compromising therefore their recycling capacity as ecomaterials. This work is focused on studying the effects of the biochemical changes of postmortem salmon on the PET coating and how muscle degradation favors adhesion to the container. The experimental design considered a series of laboratory tests of containers simulating the conditions of canned salmon, chemical and physical tests of food-contact canning to evaluate the adhesion, and characterization of changes in the multilayer PET polymer by electron microscopy, ATR, FT-IR, and Raman spectroscopy analyses. The analyses determined the effect of heat treatment of containers on the loss of freshness of canned fish and the increased adhesion to the container wall, and the limited capability of the urea treatment to remove salmon muscle from the container for recycling purposes.

Characterization of human ovarian teratoma hair by using AFM, FT-IR, and Raman spectroscopy

2011 ◽  
Vol 74 (12) ◽  
pp. 1121-1126 ◽  
Author(s):  
Kyung Sook Kim ◽  
Jinwoo Lee ◽  
Min-Hyung Jung ◽  
Young Joon Choi ◽  
Hun-Kuk Park
Keyword(s):  
Raman Spectroscopy ◽  
Ovarian Teratoma ◽  
Ir And Raman Spectroscopy ◽  
Ft Ir ◽  
Ir And Raman

Forensic Analysis of Architectural Finishes Using Fourier Transform Infrared and Raman Spectroscopy, Part II: White Paint

2005 ◽  
Vol 59 (11) ◽  
pp. 1340-1346 ◽  
Author(s):  
Steven E. J. Bell ◽  
Louise A. Fido ◽  
S. James Speers ◽  
W. James Armstrong ◽  
Sharon Spratt
Keyword(s):  
Raman Spectroscopy ◽  
Fourier Transform ◽  
Fourier Transform Infrared ◽  
Forensic Analysis ◽  
The Other ◽  
Large Group ◽  
Ir Microscopy ◽  
Infrared And Raman Spectroscopy ◽  
Ft Ir ◽  
Ir And Raman

White household paints are commonly encountered as evidence in the forensic laboratory but they often cannot be readily distinguished by color alone so Fourier transform infrared (FT-IR) microscopy is used since it can sometimes discriminate between paints prepared with different organic resins. Here we report the first comparative study of FT-IR and Raman spectroscopy for forensic analysis of white paint. Both techniques allowed the 51 white paint samples in the study to be classified by inspection as either belonging to distinct groups or as unique samples. FT-IR gave five groups and four unique samples; Raman gave seven groups and six unique samples. The basis for this discrimination was the type of resin and/or inorganic pigments/extenders present. Although this allowed approximately half of the white paints to be distinguished by inspection, the other half were all based on a similar resin and did not contain the distinctive modifiers/pigments and extenders that allowed the other samples to be identified. The experimental uncertainty in the relative band intensities measured using FT-IR was similar to the variation within this large group, so no further discrimination was possible. However, the variation in the Raman spectra was larger than the uncertainty, which allowed the large group to be divided into three subgroups and four distinct spectra, based on relative band intensities. The combination of increased discrimination and higher sample throughput means that the Raman method is superior to FT-IR for samples of this type.

scholarly journals APLICAÇÃO DA ESPECTROSCOPIA FT-IR E RAMAN PARA CARACTERIZAÇÃO DE SOLO OBTIDO EM ESCAVAÇÃO NO SÍTIO ARQUEOLÓGICO TEMPLO DOS PILARES, MATO GROSSO DO SUL

2021 ◽  
Vol 36 (1) ◽  
pp. 128
Author(s):  
Cássia Patrícia Seccatto ◽  
Jaldair Araujo e Nobrega ◽  
Rozanna Marques Muzzi ◽  
Rodrigo Luiz Simas de Aguiar
Keyword(s):  
Raman Spectroscopy ◽  
Vibrational Energy ◽  
Archaeological Site ◽  
Rotational Energy ◽  
Mato Grosso ◽  
Ir And Raman Spectroscopy ◽  
Ft Ir ◽  
Ir And Raman ◽  
Mato Grosso Do Sul

O presente estudo buscou determinar através da técnica FT-IR e Raman, características do solo coletado no sítio arqueológico ‘Templo dos Pilares’ localizado no município de Alcinópolis. Através da análise de FT-IR, pode-se observar que os átomos de compostos orgânicos podem ter sua vibração com amplitude aumentada ao redor das ligações covalentes que os ligam, nesse processo cada mudança de nível de energia vibracional corresponde uma série de mudanças de níveis de energia rotacional e assim originando as bandas com diferentes comprimentos de ondas observadas no espectro.APPLICATION OF FT-IR AND RAMAN SPECTROSCOPY FOR CHARACTERIZATION OF SOIL OBTAINED IN EXCAVATION AT THE PILLARS-MS TEMPLE ARCHAEOLOGICAL SITE, MATO GROSSO DO SUL ABSTRACTThe present study sought to determine, using the FT-IR and Raman technique, characteristics of the soil collected at the archaeological site ‘Temple of the Pillars’ located in the municipality of Alcinópolis. Through the analysis of FT-IR, it can be observed that the atoms of compounds can have their vibration with increased amplitude around the connections of the bonds that connect them, in this process each change of level of vibrational energy corresponding to a series of level changes of rotational energy and thus originating the bands with different wavelengths observed in the spectrum.Keywords: FT-IR; Characterization; Archaeological.

Electropolymerization of silythiophene monomers: FT-IR and Raman spectroscopy characterization of polythiophene films

1994 ◽  
Vol 62 (3) ◽  
pp. 233-244 ◽  
Author(s):  
Jean-Louis Sauvajol ◽  
Claude Chorro ◽  
Jean-Pierre Lère-Porte ◽  
Robert J.P. Corriu ◽  
Joël J.E. Moreau ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Ir And Raman Spectroscopy ◽  
Ft Ir ◽  
Ir And Raman

FT-IR and Raman Spectroscopy of C58BN

1997 ◽  
pp. 271-273
Author(s):  
K. Antonova ◽  
P. Byshewski ◽  
G. Zhizhin ◽  
J. Piechota ◽  
M. Marhevka
Keyword(s):  
Raman Spectroscopy ◽  
Ir And Raman Spectroscopy ◽  
Ft Ir ◽  
Ir And Raman
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