نتایج جستجو برای: ir spectroscopy

تعداد نتایج: 230332  

Journal: :Applied and environmental microbiology 2010
Hui Wang Katherine Hollywood Roger M Jarvis Jonathan R Lloyd Royston Goodacre

Shewanella oneidensis is able to conserve energy for growth by reducing a wide variety of terminal electron acceptors during anaerobic respiration, including several environmentally hazardous pollutants. This bacterium employs various electron transfer mechanisms for anaerobic respiration, including cell-bound reductases and secreted redox mediators. The aim of this study was to develop rapid t...

2010
Pierre-Yves Sacré Eric Deconinck Thomas De Beer Patricia Courselle Patrice Chiap Jacques Crommen Jacques O. De Beer

14 During this study, Fourier transform infrared spectroscopy (FT-IR), near infrared 15 spectroscopy (NIR) and Raman spectroscopy were applied to 55 samples of counterfeit and 16 imitations of Viagra ® and 39 samples of counterfeit and imitations of Cialis ® . The aim of the 17 study was to investigate which of these techniques and associations of them were the best for 18 discriminating genuin...

2012
Hesham M. Badr

The aim of the present study was to investigate the possibility of using infrared spectroscopy for detecting the irradiation of meats. Samples of beef meat containing fat were subjected to gamma irradiation at doses of 0, 1.5, 3 and 4.5 kGy at room temperature. Then irradiated and non-irradiated beef meat samples were examined by Fouriertransform infrared (FT-IR) spectroscopy post irradiation t...

Journal: :Biotechnology and bioengineering 2010
Christopher A Sellick Rasmus Hansen Roger M Jarvis Arfa R Maqsood Gill M Stephens Alan J Dickson Royston Goodacre

Fourier transform infrared (FT-IR) spectroscopy combined with multivariate statistical analyses was investigated as a physicochemical tool for monitoring secreted recombinant antibody production in cultures of Chinese hamster ovary (CHO) and murine myeloma non-secreting 0 (NS0) cell lines. Medium samples were taken during culture of CHO and NS0 cells lines, which included both antibody-producin...

Journal: :journal of reports in pharmaceutical sciences 0
babak tajani reza tahvilian saeideh khazaei komail sadr javadi ali fattahi

water soluble chitosan oligosaccharide (cho) was hydrophobically modified with camptothecin (cpt) in different molar ratios of cpt, and characterized by ft-ir and 1 h-nmr spectroscopy. nanomicelles prepared by these copolymers were analyzed for size, zeta, and length of time they remain stable. the critical micelle concentration (cmc) and dissociation of micelles at physiological ph and acidic ...

2014
Christian Menno Müller Bobby Pejcic Lionel Esteban Claudio Delle Piane Mark Raven Boris Mizaikoff

The direct qualitative and quantitative determination of mineral components in shale rocks is a problem that has not been satisfactorily resolved to date. Infrared spectroscopy (IR) is a non-destructive method frequently used in mineral identification, yet challenging due to the similarity of spectral features resulting from quartz, clay, and feldspar minerals. This study reports on a significa...

2006
Alexandra Pope Ranga Chary Mark Dickinson Douglas Scott

Submillimetre (sub-mm) galaxies have very high infrared (IR) luminosities and are thousands of times more numerous at z ∼ 2 than local ultra-luminous IR galaxies. They therefore represent a key phase in galaxy evolution which can be missed in optical surveys. Determining their contribution to the global star formation rate requires dissecting their IR emission into contributions from starbursts...

This article reports a study of the thermo-oxidation and biodegradation in the soil of low-density polyethylene/starch films (LDPE/starch) by infrared spectroscopy: Films of LDPE/Starch blends of different composition (starch content range from 0 to 15% w/w),were prepared and exposed to thermo-oxidation at different temperatures at 80, 90 and 100°C,and buried in the soil of public dump duri...

2014
Kambiz Gilany Roudabeh Sadat Moazeni Pouracil Mohammad Reza Sadeghi

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...

2002
Peter Lasch Matthias Boese Anthony Pacifico Max Diem

Spatially resolved Fourier transform infrared (FT-IR) spectroscopy of single oral mucosa cells and FT-IR spectroscopy of liver cell fractions produced by sucrose density gradient centrifugation have been applied to acquire structural information of cell organelles. For the spatially resolved measurements, mapping as well as mercury cadmium telluride (MCT) focal plane array (FPA) detector techni...

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