scholarly journals Obtaining and Analysis of Optical Absorption Spectrum of Fisher Rat Blood with Hepatic Damage by Photoacoustic Spectroscopy

2017 ◽  
Author(s):  
◽  
M. L. Alvarado-Noguez1
Keyword(s):  
Optical Absorption ◽  
Absorption Spectra ◽  
Liver Damage ◽  
Photoacoustic Spectroscopy ◽  
Curcuma Longa ◽  
Photothermal Techniques ◽  
Optical Absorption Spectra ◽  
Complementary Technique ◽  
Different Types

Photoacoustic Spectroscopy (PAS) stand outs among Photothermal techniques due to its versatility for the characterization of different types of materials, including biological samples. In this study, were compared and analyzed by PAS, the differences between the optical absorption spectra of blood of male Fisher rats, in three cases, control (healthy rats), liver damage and liver damage treated with Curcuma longa. The experimental results show differences in the optical absorption spectra of each analysed case, therefore PAS would be proposed as a non conventional complementary technique, to study the effect of Curcuma longa in induced liver damage for an animal model.

Solvothermal Syntheses and Characterization of Three Lanthanide Thioantimonates(V) with Mixed Ethylene Polyamines

2013 ◽  
Vol 68 (2) ◽  
pp. 133-137 ◽  
Author(s):  
Jian Zhou ◽  
Xing Liu ◽  
Feilong Hu
Keyword(s):  
Optical Absorption ◽  
Absorption Spectra ◽  
Trigonal Prism ◽  
Optical Absorption Spectra ◽  
Neutral Complex ◽  
Solvothermal Syntheses ◽  
Absorption Edges

Three new lanthanide thioantimonates(V) [Ln(en)(teta)(SbS4)] {Ln=Sm (1), Eu (2), Gd (3); en=ethylenediamine; teta=triethylenetetramine} have been solvothermally synthesized and structurally characterized. Compounds 1 - 3 are isostructural. The [SbS4]3- anion acting as bichelating ligand is bound to the [Ln(en)(teta)]3+ ion, resulting in a neutral complex [Ln(en)(teta)(SbS4)]. The central Ln3+ ion lies within an eight-coordinate environment forming a distorted bicapped trigonal prism LnN6S2. Although a few lanthanide thioantimonates have been reported to date, they only contain one type of ethylene polyamine. Compounds 1 - 3 are rare examples of lanthanide thioantimonates with mixed ethylene polyamine ligands. The absorption edges of 1:75 eV for 1 and 2:27 eV for 3 have been derived from optical absorption spectra.

scholarly journals Photoacoustic Spectroscopy Applied to the Study of Bone Consolidation in Fractures

2005 ◽  
Vol 480-481 ◽  
pp. 339-344 ◽  
Author(s):  
P.A. Lomeí Mejia ◽  
G. Urriolagoitía ◽  
J.L. Jiménez Pérez ◽  
Luis Héctor Hernández-Gómez ◽  
H. Lecona Butron ◽  
...  
Keyword(s):  
Alkaline Phosphatase ◽  
Optical Absorption ◽  
Absorption Spectra ◽  
Photoacoustic Spectroscopy ◽  
Bone Fractures ◽  
Repair Process ◽  
Male Rat ◽  
Optical Absorption Spectra ◽  
Bone Consolidation

By using photoacoustic (PA) spectroscopy it was performed a study about bone consolidation in fractures. It was obtained the optical absorption spectra of callus of male rat fractured bones at different consolidation times. From these spectra it was possible to observe the presence of alkaline phosphatase through their absorption peaks which were compared with characteristic peaks reported in the literature for this phosphatase. In this study we showed that alkaline phosphatase could be considered as an indicator of the repair process of bone fractures.

scholarly journals Nondestructive Characterization at Nanoscopic Scale by Photoacoustic and Photothermal Techniques -INVITED

2020 ◽  
Vol 238 ◽  
pp. 10004
Author(s):  
Roberto Li Voti
Keyword(s):  
Light Scattering ◽  
Optical Absorption ◽  
Absorption Spectra ◽  
Photothermal Techniques ◽  
Optical Absorption Spectra ◽  
Photothermal Spectroscopy ◽  
Recent Advances ◽  
Novel Applications ◽  
Nondestructive Characterization

Photoacoustic and Photothermal Spectroscopy are excellent techniques for studying the optical absorption spectra of opaque and highly light-scattering substances such as nanomaterials. In this paper we review recent advances in the methodology and its novel applications at the nanoscopic scale.

Preparation and Characterization of (C6H5CH2CH2NH3)4BiI7 · H2O, (C6H5CH2CH2NH3)3BiBr6 and (C6H5CH2CH2NH3)3BiCl6

1995 ◽  
Vol 50 (10) ◽  
pp. 1566-1569 ◽  
Author(s):  
G. C. Papavassiliou ◽  
I. B. Koutselas ◽  
A. Terzis ◽  
C. P. Raptopoulou
Keyword(s):  
Optical Absorption ◽  
Absorption Spectra ◽  
Spectral Region ◽  
Visible Spectral Region ◽  
Optical Absorption Spectra ◽  
Uv Visible

The title compounds were prepared and characterized analytically, structurally, and spectroscopically. They contain isolated BiX6 (X = I. Br, Cl) anions. Their optical absorption spectra show excitonic bands in the UV-visible spectral region. These bands occur at higher energies than the corresponding bands of R3M2X9 (R = MemNH4-m; m = 1,2, 3, 4).

Synthesis, Structural and Optical Characterization of II-VI Semiconductors Included in Sodalite-Type Hosts

1989 ◽  
Vol 164 ◽  
Author(s):  
K. L. Moran ◽  
W. T. A. Harrison ◽  
T. E. Gier ◽  
J. E. Mac Dougall ◽  
G. D. Stucky
Keyword(s):  
Optical Properties ◽  
Solid State ◽  
Optical Absorption ◽  
Absorption Spectra ◽  
Structural Characterization ◽  
Optical Characterization ◽  
Solid State Chemistry ◽  
Optical Absorption Spectra ◽  
X Ray

AbstractSolid-state chemistry has been used to control both the size and the interconnection distance of small II-VI semiconductor moeities incorporated in zeolitic hosts with the sodalite-type structure. Structural characterization was carried out using X-ray Rietveld powder methods, and optical properties of these materials were also measured. These novel materials show quantum superlattice effects as evidenced by blue shifts in their optical absorption spectra.

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