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Mostrando ítems 1-10 de 1623
Characterization of laser-treated Opuntia using FT-IR spectroscopy and thermal analysis
(2013-04-12)
This paper presents the characterization of Opuntia samples whose thorns were removed by laser pulses. The characterization was performed by Fourier transform infrared (FT-IR) spectroscopy and differential scanning calorimetry ...
Optical diagnosis of actinic cheilitis by infrared spectroscopy
(2016-12-01)
Actinic cheilitis (AC) is considered a potentially malignant disorder of the lip. Biomolecular markers study is important to understand malignant transformation into squamous cell carcinoma. Fourier transform infra red ...
Novel techniques for drug loading quantification in mesoporous SBA-15 using chemometric-assisted UV and FT-IR data
(Elsevier Science, 2022-07-15)
Albendazole is a crystalline drug that is poorly soluble in water, thus the dissolution rate in gastrointestinal fluids is limited. Mesoporous materials loaded with poorly water-soluble drugs become an interesting strategy ...
Study on antibacterial alginate-stabilized copper nanoparticles by ft-ir and 2d-ir correlation spectroscopy
(DOVE MEDICAL PRESS, 2012)
Evaluation of photo-induced crosslinking of thymine polymers using FT-IR spectroscopy and chemometric analysis
(Elsevier, 2012-09)
The photo-induced immobilization of 4-vinylbenzyl thymine (VBT) and 4-vinylbenzyl triethyl ammonium chloride (VBA) copolymers has been investigated with the aid of grazing-angle specular-reflectance FT-IR spectroscopy. ...
Beyond Fourier Transform Infrared Spectroscopy: External Cavity Quantum Cascade Laser-Based Mid-infrared Transmission Spectroscopy of Proteins in the Amide i and Amide II Region
(American Chemical Society, 2018-06)
In this work, we present a setup for mid-IR measurements of the protein amide I and amide II bands in aqueous solution. Employing a latest generation external cavity-quantum cascade laser (EC-QCL) at room temperature in ...
Development and validation of the quantitative analysis of ampicillin sodium in powder for injection by Fourier-transform infrared spectroscopy (FT-IR)
(Scientific and Academic Publishing, 2012)
This paper describes the validation of an innovative analytical method for ampicillin sodium in powder for injection quantification, using Fourier-transform infrared (FT-IR) transmission spectroscopy. This technique does ...
Study of coprolites from the araripe sedimentary basin through FT-IR spectroscopy and X-ray diffraction
(Soc Brasileira Quimica, 2007-01-01)
Coprolites are fossilized faeces that constitute an important source of palaeobiological informations. This paper describes the characterization of some coprolite materials originated from the Romualdo Member of the Santana ...
Analysis of the DNA Fourier transform-infrared microspectroscopic signature using an all-reflecting objective
(Pergamon-elsevier Science LtdOxfordInglaterra, 2014)