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Studies on the resonance Raman spectra of polyaniline obtained with near-IR excitation
(JOHN WILEY & SONS LTD, 2008)
The effects of near-IR (NIR) laser power over the Raman spectra of poly(aniline) emeraldine salt (PANIES) and base (PANI-EB) were investigated. The reasons for the existence of several bands from 1324 to 1500 cm-1 in the ...
Vibrational Spectroscopic Characterization and Coherent Anti-Stokes Raman Spectroscopy (CARS) Imaging of Artepillin C
(Sage Publications Inc, 2020-04-30)
In the following work, the vibrational spectroscopic characteristics of artepillin C are reported by means of Fourier transform infrared (FT-IR) and Raman spectroscopies, surface-enhanced Raman scattering (SERS), and ...
Spectroscopic Techniques for Characterization of Nanomaterials
(2017-03-23)
This chapter discusses the characterization of nanomaterials, that is, nanoparticles and nanometer(s)-thick thin films. The focus is on the application of ultraviolet-visible (UV-vis) spectroscopy, infrared (IR) absorption ...
Diagnosis of inflammatory lesions by high-wavenumber FT-Raman spectroscopy
(Springer, 2011-12-01)
The Raman spectroscopy technique has been extensively used for biological sample characterization. In particular, the fingerprint spectral region (800-1,800 cm(-1)) has been shown to be very promising for optical biopsy ...
Diagnosis of inflammatory lesions by high-wavenumber FT-Raman spectroscopy
(Springer, 2011-12-01)
The Raman spectroscopy technique has been extensively used for biological sample characterization. In particular, the fingerprint spectral region (800-1,800 cm(-1)) has been shown to be very promising for optical biopsy ...
Vibrational spectroscopy characterization and anticoagulant activity of a sulfated polysaccharide from sea cucumber Athyonidium chilensis
(ELSEVIER SCI LTD, 2012)
Extraction of Athyonidium chilensis body wall afforded a light brown powder in 4.2% yield which was fractionated by ion-exchange chromatography. The main fraction F1 contained glucuronic acid, galactosamine and fucose in ...
Spectroscopic and thermodynamic evidence of the auto-association of n-butylamine in open dimers and cyclic trimers
(Elsevier Science, 2020-04)
The type of n-mers present in butylamine was evaluated. With density functional theory (DFT) techniques using the B3LYP functional combined with the 6-31G (d,p) basis set was found that the energetically more favorable ...
Cross-Section Analysis of the Composition of Sprayed Cu 2 ZnSnS 4 Thin Films by XPS, EDS, and Multi-Wavelength Raman Spectroscopy
(Wiley VCH Verlag, 2018-12)
A detailed cross-section analysis of the chemical composition of sprayed Cu 2 ZnSnS 4 thin films is presented. X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), and Raman ...
Theoretical studies of 13C carbon-NMR and vibrational (IR and Raman) Spectroscopies of Mefenamic Acid Polymorphs.
(Instituto de Física da Universidade de São Paulo.São Paulo, 2014-05-21)
The two polymorphs of mefenamic acid (MEF) or 2-[(2,3-
(dimethylphenyl)amino] benzoic acid polymorphs (known as I and 11 forms)
were studied in the framework of density functional theory (DFn. The DFT
calculations were ...