Results 211 to 220 of about 198,059 (267)
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FTIR Spectroscopy of Metalloproteins
2014Absorption of infrared radiation by proteins gives important information about their structure and function. The most intense infrared bands correspond to the overlap of all the peptide bond absorption. Additionally, in many metalloproteins their prosthetic groups have intrinsic ligands or bind substrates/inhibitors that absorb intensively in the ...
Oscar, Gutiérrez-Sanz +2 more
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FTIR and Raman Spectroscopy of Rhodopsins
2022Vibrational spectroscopy such as FTIR and Raman spectroscopy is a powerful, sensitive, and informative method for studying protein structural changes in rhodopsins during their functions. The usefulness has been historically proven for the study of bacteriorhodopsin and bovine rhodopsin before their structural determination of rhodopsins.
Hideki, Kandori, Yasuhisa, Mizutani
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Quantitative analysis of copolymers by FTIR
European Polymer Journal, 1993Quantitative analysis of copolymers is described in detail for a series of copolymers of 2-[(phenylamino)carbonyl]oxyethyl methacrylate and 1-methyl-2-phenoxyethyl methacrylate. Particular emphasis is placed on aspects optimising the accuracy of the technique.
MAO, RS, HUGLIN, MB, DAVIS, TP
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Investigation of folding in protamine by FTIR
Talanta, 1992The secondary structure of purified protamine, a non-specific DNA binding protein, was studied in solution at pH 4, 7 and 8 by FTIR. This permitted analysis of the folded form of the protein (acidic pH) as well as the folded conformers (neutral and basic pH).
J J, Pesek, F R, Shabary
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FTIR Spectral Components of Schwertmannite
Environmental Science & Technology, 2010Fourier transform infrared (FTIR) spectral components of three dominant groups of sulfate species in synthetic schwertmannite (Fe(8)O(8)(OH)(6-x)(SO(4))(x)*nH(2)O) are presented. These components were extracted by multivariate curve resolution analysis of spectra obtained from N(2)(g)-dry samples initially reacted in aqueous solutions (pH 3-9) at room ...
Jean-François, Boily +4 more
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Forensic Science International, 2015
In this article, five hundred and thirteen cocaine seizures of the State of Rio Grande do Sul (Brazil) were analyzed by Fourier transform infrared spectroscopy (FT-IR) in the fingerprint region (1800-650 cm(-1)) to profiling and evaluate the pharmaceutical products used as adulterants.
M C A, Marcelo +3 more
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In this article, five hundred and thirteen cocaine seizures of the State of Rio Grande do Sul (Brazil) were analyzed by Fourier transform infrared spectroscopy (FT-IR) in the fingerprint region (1800-650 cm(-1)) to profiling and evaluate the pharmaceutical products used as adulterants.
M C A, Marcelo +3 more
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Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces, 2009
The increased attention which multitouch interfaces have received in recent years is partly due to the availability of cheap sensing hardware such as FTIR-based screens. However, this method has so far required a bulky projector-camera setup behind the screen. In this paper, we present a new approach to FTIR sensing by "inverting" the setup and placing
Florian Echtler +3 more
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The increased attention which multitouch interfaces have received in recent years is partly due to the availability of cheap sensing hardware such as FTIR-based screens. However, this method has so far required a bulky projector-camera setup behind the screen. In this paper, we present a new approach to FTIR sensing by "inverting" the setup and placing
Florian Echtler +3 more
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2017
In this chapter, several analytical techniques to make the best use of the ‘ordinate scale’ of absorbance spectra are described. The techniques are on a concept of the multivariate analysis, which is usually called chemometrics. To employ chemometrics for spectral data analysis, the accuracy of the abscissa axis must be highly rigid.
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In this chapter, several analytical techniques to make the best use of the ‘ordinate scale’ of absorbance spectra are described. The techniques are on a concept of the multivariate analysis, which is usually called chemometrics. To employ chemometrics for spectral data analysis, the accuracy of the abscissa axis must be highly rigid.
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Lignin Analysis by HPLC and FTIR
2017Fourier transform infrared spectroscopy (FTIR) is a simple non-destructive technique which allows the user to obtain quick and accurate information about the structure of the constituents of wood. High performance liquid chromatography (HPLC) is an analytical technique useful to determine the ratio of the lignin monomers obtained by the alkaline ...
Jorge, Reyes-Rivera, Teresa, Terrazas
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FTIR spectroscopy and FTIR microscopy of vacuum-evaporated polyimide thin films
Vibrational Spectroscopy, 1999Abstract Polyimide (PI) thin films can be formed by vapor co-deposition of the precursor molecules pyromellitic dianhydride (PMDA) and 4,4′-oxydianiline (ODA) if the resulting polyamic acid film is heated above 150°C. The effects of dose stoichiometry and curing temperature on the imidization rate and crystallization of PI films were investigated ...
I Karamancheva +5 more
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