Characterization of Polyacrylate Membrane-Coated Fibers Used in Chemical Absorption Studies with Programmed Thermal Treatment and FT-IR Microscopy

2004 ◽  
Vol 76 (14) ◽  
pp. 4245-4250 ◽  
Author(s):  
Xin R. Xia ◽  
Ronald E. Baynes ◽  
Nancy A. Monteiro-Riviere ◽  
Jim E. Riviere
Keyword(s):  
Thermal Treatment ◽  
Chemical Absorption ◽  
Ir Microscopy ◽  
Absorption Studies ◽  
Ft Ir ◽  
Polyacrylate Membrane

Spectral Investigation on the Growth and Characterization of NLO Crystals of Thiourea Succinic Acid Single Crystal.

2015 ◽  
Vol 2 (2) ◽  
pp. 70-73
Author(s):  
Kannan.P ◽  
Thambidurai.S ◽  
Suresh.N
Keyword(s):  
Single Crystal ◽  
Succinic Acid ◽  
Slow Evaporation Technique ◽  
Absorption Studies ◽  
Dta Analysis ◽  
Evaporation Technique ◽  
Ft Ir ◽  
Ir Spectroscopic ◽  
Thermal Stability Of

Growth of optically transparent single crystals of thiourea succinic acid (TUSA) was grown successfully from aqueous solution by slow evaporation technique. The crystal structure was elucidated using the single crystal XRD. The various functional groups and the modes of vibrations were identified by FT-IR spectroscopic analysis. The optical absorption studies indicate that the optical transparency window is quite wide making its suitable for NLO applications. Thermal stability of the crown crystal carried out by TGA-DTA analysis.

FT-IR microscopy characterization of sol–gel layers prior and after glucose oxidase immobilization for biosensing applications

2010 ◽  
Vol 57 (2) ◽  
pp. 204-211 ◽  
Author(s):  
M. Portaccio ◽  
B. Della Ventura ◽  
D. G. Mita ◽  
N. Manolova ◽  
O. Stoilova ◽  
...  
Keyword(s):  
Glucose Oxidase ◽  
Sol Gel ◽  
Ir Microscopy ◽  
Ft Ir ◽  
Microscopy Characterization

Spectroscopic Characterization of Normal Primary and Malignant Cells Transformed by Retroviruses

2002 ◽  
Vol 56 (5) ◽  
pp. 640-645 ◽  
Author(s):  
Mahmoud Huleihel ◽  
Vitaly Erukhimovitch ◽  
Marina Talyshinsky ◽  
Mark Karpasas
Keyword(s):  
Ir Spectroscopy ◽  
Spectroscopic Characterization ◽  
Primary Cells ◽  
Malignant Cells ◽  
Ir Microscopy ◽  
Murine Sarcoma Virus ◽  
Sarcoma Virus ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

Microscopic FT-IR spectroscopy was used to investigate spectral differences between various primary cells obtained from different sources (mouse, rat, rabbit, and human) and malignant cells transformed by murine sarcoma virus (MuSV). The advantage of this method over conventional FT-IR spectroscopy is that it facilitates inspection of restricted regions of tissue. Our results showed significant and consistent differences between all the tested normal and malignant cells. An impressive decrease in the levels of vital cellular metabolites was seen in malignant cells compared to normal cells. The peak attributed to the PO2− symmetric stretching mode at 1082 cm−1 was shifted significantly to a higher frequency (1086–1087 cm−1) in all the tested malignant cells. The impressive and consistent differences between normal primary cells and malignant cells (obtained from various organs and species) in the shapes and position of various bands throughout the spectrum strongly support the possibility of developing FT-IR microscopy as a diagnostic method for the detection and study of cancer cells.

Characterization of multilayered glitter particles using synchrotron FT-IR microscopy

2011 ◽  
Vol 210 (1-3) ◽  
pp. 47-51 ◽  
Author(s):  
Laetitia Vernoud ◽  
Hans A. Bechtel ◽  
Michael C. Martin ◽  
John A. Reffner ◽  
Robert D. Blackledge
Keyword(s):  
Ir Microscopy ◽  
Ft Ir

Characterization of Interstitial Oxygen Striations in Silicon Single Crystals by the Micro-FT-IR Method

1993 ◽  
Vol 47 (9) ◽  
pp. 1488-1491 ◽  
Author(s):  
Eiichi Uno ◽  
Izumi Fusegawa ◽  
Hirotoshi Yamagishi
Keyword(s):  
Crystal Growth ◽  
Thermal Treatment ◽  
Single Crystals ◽  
Growth Conditions ◽  
Interstitial Oxygen ◽  
Space Resolution ◽  
Mapping System ◽  
Ft Ir ◽  
High Space

We will demonstrate that our micro-FT-IR mapping system is highly effective for investigating the behavior of interstitial oxygen (Oi) in Czochralski-grown silicon single crystals. The micro-FT-IR system experiences high space resolution, and Oi striations of as-grown silicon single crystals or of oxygen micro-precipitation after a thermal treatment are quantitatively measured. Oi micro-distribution profiles of as-grown crystals exhibit regular or irregular intervals and height, depending upon their crystal growth conditions. Oxygen micro-precipitations along growth striations are dependent upon their initial Oi micro-distribution profiles, and anomalous oxygen micro-precipitation is not observed.

Synthesis and Characterization of Complexes of New Derivative of Cyclopentaphenanthren-3-one with Manganese (II), Iron (II), Cobalt (II), Nickel (II), and Copper (II) Ions

2020 ◽  
Vol 38 (3B) ◽  
pp. 197-203
Author(s):  
Liblab S. Jassim
Keyword(s):  
Metal Ion ◽  
Molar Conductance ◽  
Spectral Measurements ◽  
Chemical Preparation ◽  
Electron Pairs ◽  
H Nmr ◽  
Absorption Studies ◽  
Ft Ir ◽  
Uv Visible

This work involves the chemical preparation from a series of metal Complexes having the general composition M(L)2(H2O)2, where M = [Mn+2, Fe+2, Co+2, Ni+2 and Cu+2]. The ligand used was 9-fluoro-17-(1-hydrazono-2-hydroxyethyl)-11,17-dihydroxy-10,13,16-trimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[α]phenanthren-3-one (FHDTCP), who was diagnosed by H-NMR spectra. These complexes have been prepared and characterized by the ligand to metal by molar conductance, spectral (UV-Visible and FT-IR), and atomic absorption studies. The IR spectral measurements forecast interference to oxygen, nitrogen in coordination from the electron pairs to the metal ion in the center. And suggested the complexes geometry be octahedral for all.

scholarly journals Synthesis and characterization of monophase CaO-TiO2-SiO2 (sphene) based glass-ceramics

2020 ◽  
Vol 52 (1) ◽  
pp. 41-52
Author(s):  
Jelena Maletaskic ◽  
Bratislav Todorovic ◽  
Martina Gilic ◽  
Milena Marinovic-Cincovic ◽  
Katsumi Yoshida ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Thermal Analyses ◽  
Glass Ceramics ◽  
Ceramic Materials ◽  
Host Lattice ◽  
Powder Morphology ◽  
Waste Immobilization ◽  
Ft Ir ◽  
Nuclear Waste Immobilization

Sphene based glass-ceramics (CaTiSiO5), an excellent candidate for a host lattice of ceramic materials and for nuclear waste immobilization, has been prepared from a powder mixture of CaCO3, TiO2 and SiO2 using vibro-milling for homogenization. Starting powders were melted at 1400?C for 2 h, cooled to room temperature, grounded again, then crystallized by thermal treatment yielding a sphene glass-ceramic. The evolution of the phase composition during thermal treatment was investigated by X-ray powder diffraction (XRPD), FT-IR, Raman and thermal analyses (TG-DTA). Pure synthetic single phase sphene was formed at 800?C for 4 h, even it is very hard to obtain monophase powder at such low temperature. Powder morphology was analyzed by scanning electron microscopy (SEM).

FR-IR Molecular Microanalysis System

1990 ◽  
Vol 48 (2) ◽  
pp. 270-271
Author(s):  
John A. Reffner ◽  
William T. Wihlborg
Keyword(s):  
Fourier Transform ◽  
Fourier Transform Infrared ◽  
Integrated System ◽  
Morphological Examination ◽  
Fully Integrated ◽  
Ir Microscopy ◽  
Normal Functions ◽  
Infrared Microspectroscopy ◽  
Infrared Spectral ◽  
Ft Ir

The IRμs™ is the first fully integrated system for Fourier transform infrared (FT-IR) microscopy. FT-IR microscopy combines light microscopy for morphological examination with infrared spectroscopy for chemical identification of microscopic samples or domains. Because the IRμs system is a new tool for molecular microanalysis, its optical, mechanical and system design are described to illustrate the state of development of molecular microanalysis. Applications of infrared microspectroscopy are reviewed by Messerschmidt and Harthcock.Infrared spectral analysis of microscopic samples is not a new idea, it dates back to 1949, with the first commercial instrument being offered by Perkin-Elmer Co. Inc. in 1953. These early efforts showed promise but failed the test of practically. It was not until the advances in computer science were applied did infrared microspectroscopy emerge as a useful technique. Microscopes designed as accessories for Fourier transform infrared spectrometers have been commercially available since 1983. These accessory microscopes provide the best means for analytical spectroscopists to analyze microscopic samples, while not interfering with the FT-IR spectrometer’s normal functions.

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