نتایج جستجو برای: fourier transform infrared spectroscopy ftir

تعداد نتایج: 369652  

2016
A Heidari

Nowadays, the use of lasers and other biospectroscopic techniques such as Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR), Mass, UV-Vis, FT-Raman, 1HNMR, 13CNMR and 31PNMR spectroscopies have had significant progress in treatment of cancer diseases [1-17]. Process of irradiation transmission and absorption in human cells’ tissues is very important in diagnosis an...

2002
I. Pereyra

In this work we study the structural properties of amorphous oxynitride lms (a-SiOxNy), grown by plasma enhanced chemical vapour deposition (PECVD)at 320C. The lms were deposited at di erent ow ratio of N2O and SiH4. The atomic composition of the samples was determined by means of Rutherford backscattering spectrometry (RBS). The local order structure was studied by X-ray absorption spectroscop...

2004
Seonmin Kim Sheryl Ehrman

Introduction Titania (TiO2) is an outstanding materials because of its superior physical properties but nanostructured titania films synthesized by an evaporationcondensation aerosol process can be used only for limited applications because of their low mechanical strength. In this study, the surface of titania nanoparticles (TiO2) is modified by a heterogeneous capillary condensation process t...

2006

Detection of moisture contamination in hydride gases, such as ammonia used for epitaxial growth, has become a significant concern for manufacturers of III-V compound semiconductors. The presence of moisture in NH3 can negatively affect device properties, such as minority-carrier lifetimes and luminescent efficiency in light-emitting diodes. Tunable diode laser spectroscopy (TDLAS) has emerged a...

2016
Marie-Alix Pizzoccaro Martin Drobek Eddy Petit Gilles Guerrero Peter Hesemann Anne Julbe

Imidazolium bromide-based ionic liquids bearing phosphonyl groups on the cationic part were synthesized and grafted on γ-alumina (γ-Al₂O₃) powders. These powders were prepared as companion samples of conventional mesoporous γ-alumina membranes, in order to favor a possible transfer of the results to supported membrane materials, which could be used for CO₂ separation applications. Effective gra...

2013
Deene Manikprabhu K. Lingappa

Traditional synthesis of silver nanoparticles using chemical methods produces toxic substances. In contrast biological synthesis is regarded as a safe and nontoxic process but the major drawback of biological synthesis is, this process is slow. In the present investigation, we developed a rapid and green synthesis of silver nanoparticles employing a pigment produced by Streptomyces coelicolor k...

2015
Lakshmi Narayana Sung-Ok Baek Hugo F. Lopez

A chelating agent, 4-benzyloxybenzaldehyde-4-methyl-3-thiosemicarbazone (BBMTSC), containing sulphur and nitrogen donor atoms was synthesized and applied as a ligand for the chelation of Cd(II). Both the BBMTSC and its Cd(II) complex were characterized by elemental analysis, UV-Vis absorption spectra, Fourier transform infrared spectroscopy (FT-IR), mass spectra, nuclear magnetic resonance spec...

2008
Jie Li Wanhao Yao Ying S. Meng Yong Yang

The addition of 2% vinyl ethylene carbonate (VEC) into LiPF6/EC + DMC electrolyte can significantly improve the cyclic performance of a LiNi0.8Co0.2O2/Li cell at elevated temperatures such as 50 °C. In situ electrochemical mass spectrometry (EMS) was used to investigate the gas evolution spectroscopy in the cell during a charge/discharge process with and without VEC additive. Fourier transform ...

The aim of this study is to obtain polysaccharide (Glucose, Fructose and Sucrose) stabilized superparamagnetic iron oxide nanoparticles (SPIONs) by Co-Precipitation method. As prepared iron oxide nanoparticles have been characterized by X-ray Diffraction (XRD), Fourier Transform infrared (FTIR) spectroscopy, UV–Vis NIR spectroscopy, High Resolution Transmission Electron Microscope (HRTEM) and V...

2014
Shadab Ali Khan Imran Uddin Sana Moeez Absar Ahmad Sangaru Shiv Shankar

In this paper, we for the first time show the ability of the mesophilic fungus Fusarium oxysporum in the bioleaching of waste material such as Fly-ash for the extracellular production of highly crystalline and highly stable, protein capped, fluorescent and water soluble silica nanoparticles at ambient conditions. When the fungus Fusarium oxysporum is exposed to Fly-ash, it is capable of selecti...

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