Diffuse reflectance spectra measured in vivo in human tissues during Photofrin-mediated pleural photodynamic therapy: updated results

2009 ◽  
Author(s):  
Jarod C. Finlay ◽  
Timothy C. Zhu ◽  
Andreea Dimofte ◽  
Joseph S. Friedberg ◽  
Keith A. Cengel ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Diffuse Reflectance ◽  
Reflectance Spectra ◽  
Human Tissues ◽  
Diffuse Reflectance Spectra

scholarly journals Suitability of diffusion approximation for an inverse analysis of diffuse reflectance spectra from human skin in vivo

OSA Continuum ◽  
2019 ◽  
Vol 2 (3) ◽  
pp. 905 ◽  
Author(s):  
Peter Naglič ◽  
Luka Vidovič ◽  
Matija Milanič ◽  
Lise L. Randeberg ◽  
Boris Majaron
Keyword(s):  
Human Skin ◽  
Diffusion Approximation ◽  
Inverse Analysis ◽  
Diffuse Reflectance ◽  
Reflectance Spectra ◽  
Diffuse Reflectance Spectra

scholarly journals Analysis of spectroscopic diffuse reflectance plots for different skin conditions

2010 ◽  
Vol 24 (5) ◽  
pp. 467-481 ◽  
Author(s):  
Shanthi Prince ◽  
S. Malarvizhi
Keyword(s):  
Diffuse Reflectance ◽  
Near Infrared ◽  
Skin Diseases ◽  
Diffuse Reflectance Spectroscopy ◽  
Spectral Characteristics ◽  
Reflectance Spectra ◽  
Diffuse Reflectance Spectra ◽  
Spectral Curves ◽  
Skin Conditions

Optical means of characterizing tissues have gained importance due to its noninvasive nature. Spectral characteristics of the components provide useful information to identify the components, because different chromophores have different spectroscopic responses to electromagnetic waves of a certain energy band. The purpose of this study is to determine whether visible/near-infrared diffuse reflectance spectroscopy can be used to non-invasively characterize skin diseasesin vivo.An optical fiber spectrometer is set up for obtaining diffuse reflectance spectra. The method involves exposure of skin surface to white light produced by an incandescent source. The back scattered photons emerging from various layers of tissue are detected by spectrometer resulting in diffuse reflectance spectra.For the present study different skin conditions like – warts, vitiligo, thrombus (due to injury) and angioma are chosen. The spectral data obtained from the scan are plotted and compared. More or less, the shapes of the spectral curves for various skin conditions resemble. In order to characterize and differentiate different diseased state spectral analysis based on Ratio analysis, Student'st-tests and difference plot are carried out.Based on the analysis the relative spectral intensity changes are quantified and the spectral shape changes are enhanced and more easily visualized on the spectral curves, thus assisting in differentiating the normal tissue from the one affected by disease.

Studies on the structures of cobalt pyridinaldoximates. I. The preparation and structural investigation of those complexes containing chlorine

1967 ◽  
Vol 20 (3) ◽  
pp. 429 ◽  
Author(s):  
MW Blackmore ◽  
RJ Magee
Keyword(s):  
Diffuse Reflectance ◽  
Structural Investigation ◽  
Reflectance Spectra ◽  
Diffuse Reflectance Spectra

The preparation of some new complexes of cobalt and 2-pyridinaldoxime are described. Magnetic and conductometric measurements are reported along with their infrared, ultraviolet and visible, and diffuse reflectance spectra. The possible structure of one of the complexes is postulated.

Infrared diffuse reflectance spectra of micropowders of Ni1–x Zn x Fe2O4 ferrites

2017 ◽  
Vol 59 (3) ◽  
pp. 543-549 ◽  
Author(s):  
Sh. N. Alieva ◽  
A. M. Kerimova ◽  
R. B. Abdullaev ◽  
T. R. Mekhtiev
Keyword(s):  
Diffuse Reflectance ◽  
Reflectance Spectra ◽  
Diffuse Reflectance Spectra
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