نتایج جستجو برای: fourier transform infrared spectroscopy ftir

تعداد نتایج: 369652  

Journal: :Acta biochimica et biophysica Sinica 2007
Jilie Kong Shaoning Yu

Infrared spectroscopy is one of the oldest and well established experimental techniques for the analysis of secondary structure of polypeptides and proteins. It is convenient, non-destructive, requires less sample preparation, and can be used under a wide variety of conditions. This review introduces the recent developments in Fourier transform infrared (FTIR) spectroscopy technique and its app...

2012
Núria Ferrer Lluís Solé

This article summarizes the basic principles of Fourier Transform Infrared Spectroscopy, with examples of methodologies and applications to different field sciences. Handbook of instrumental techniques from CCiTUB Applications of FTIR 1 ChT.3

Journal: :J. Imaging 2017
Mauro Mecozzi Elena Sturchio

We present a computer assisted method for the examination of the structural changes present in the probe organism Vicia faba exposed to inorganic arsenic, detected by means of Fourier transform infrared (FTIR) and Fourier transform near infrared (FTNIR) spectroscopy. Like the common ecotoxicological tests, the method is based on the comparison among control and exposed sample spectra of the org...

Journal: :journal of dentomaxillofacil radiology, pathology and surgery 0
niloofar moein , department of operative dentistry, guilan university of medical science, dental school, rasht, iran faride darabi , department of operative dentistry, guilan university of medical science, dental school, rasht, iran reza davalloo , department of operative dentistry, guilan university of medical science, dental school, rasht, iran maryam tavangar , department of operative dentistry, guilan university of medical science, dental school, rasht, iran esmail l hasanzade

introduction: the aim of this study was to in-vestigate the effect of irradiation duration and distance of light tip to prepared samples in two different light curing unites on the degree of conversion of resin composite. materials and methods: conventional halogen and blue light emitting diode (led) units were used for polymerization of an opalis resin com-posite. the conversion measurements w...

Journal: :avicenna journal of medical biotechnology 0

background: the seminal plasma is an excellent source for noninvasive detection of spermatogenesis. the seminal plasma of normospermic and azoospermic men has been analyzed for detection of spermatogenesis. methods: optical spectroscopy (attenuated total reflectance-infrared spectroscopy (atr-ir) and fourier transform infrared spectroscopy (ft-ir) has been used to analyze the seminal plasma and...

Journal: :Journal of agricultural and food chemistry 2005
Robert A Cocciardi Ashraf A Ismail Jacqueline Sedman

A new Fourier transform infrared (FTIR) spectroscopic method based on single-bounce attenuated total reflectance (SB-ATR) spectroscopy was developed for the analysis of distilled liquors and wines. For distilled liquors, a partial least-squares (PLS) calibration was developed for alcohol determination based on the SB-ATR/FTIR spectra of mixtures of ethanol and distilled water. An independent se...

Journal: :iranian journal of pharmaceutical research 0
rezvan zendehdel pharmaceutical research center, shahid beheshti university of medical sciences, tehran, iran. ali masoudi-nejad pharmaceutical research center, shahid beheshti university of medical sciences, tehran, iran. javad mohammadzadeh pharmaceutical research center, shahid beheshti university of medical sciences, tehran, iran. farshad h. shirazi pharmaceutical research center, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. school of pharmacy, shahid beheshti university of medical sciences, tehran, iran.

cisplatin is a common chemotherapeutic agent that used for treatment of many solid cancers. rapid identification of chemotherapy resistance is very important and may lead to effective treatment plan. spectroscopy techniques, such as infrared spectroscopy, which are sensitive to biochemical composition of samples, have shown potentials to discriminate tissues. developing in fourier transform inf...

2013
EZEKIEL DIXON DIKIO ABDULLAHI MOHAMED FARAH

Metal organic frameworks (MOFs) of copper and zinc synthesized with 1,4benzenedicarboxylic acid and N,N-dimethylformamide at room temperature and by solvothermal method is reported in this paper. The MOFs were characterized by Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), High resolution transmission electron microscopy (HR-TEM), X-ray diffraction (XRD) and...

2001
Takumi Noguchi

Fourier transform infrared (FTIR) spectroscopy was used to study protein-cofactor interactions in photosystem II. The FTIR spectrum of each cofactor was measured as a difference spectrum upon its light-induced reaction. The spectrum included the bands of the protein moiety coupled to the cofactor, which were identified using selective isotopic labeling of amino acids. Analysis of these FTIR ban...

Journal: :Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2017

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