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Principles of Diffuse Reflectance Spectroscopy
2021This chapter discusses absorption spectroscopy as it might relate to near-infrared (NIR) spectroscopy. This is a rigorous treatment of the two-flux approach to modeling diffuse scatter as it applies to absorption spectroscopy. It covers the topics that NIR spectroscopists have been exposed to as theory over the last few decades but is really just ...
Kevin D. Dahm, Donald J. Dahm
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Diffuse Reflectance Infrared Spectroscopy
Journal of Chemical Education, 1994Diffuse reflectance offers a quick and easy-to-use alternative to the preparation of KBr pellets and Nujol mulls for the infrared spectra of solid samples; includes a comparison of spectra from both techniques.
Kenneth W. Raymond, Jeffrey A. Corkill
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Neurosurgical guidance with diffuse reflectance spectroscopy
2021 Photonics North (PN), 2021Diffuse reflectance spectroscopy (or DRS) is a technique where the absorption and scattering characteristics of a given material are inferred from the reflectes spectra, typically in the visible and near-infrared regions. It has been used to study biological tissue in a wide range of studies from cancer detection to neurovasculature dynamics.
Pegah Eslami +4 more
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Non-contact Quantitative Diffuse Reflectance Spectroscopy
Diffuse Optical Imaging V, 2015We validate a non-contact Diffuse Reflectance Spectroscopy (DRS) system as a first stage to approach quantitative multi-spectral imaging technique. The non-contact DRS system with separated illumination and detection paths was developed with different progressive set-ups which were all compared to a well-founded contact DRS system.
Veronica Sorgato +8 more
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Evaluation of emulsion stability by diffuse reflectance spectroscopy
Journal of Pharmaceutical Sciences, 1976A new method is described for evaluating the stability of emulsion bases and active components contained within such emulsions. Diffuse reflectance spectroscopy (DRS) is a technique that has the capability of detecting changes in particle size, surface properties, or drug quality of emulsions as a function of time without disturbance of the system ...
M J, Akers, J L, Lach
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Diffuse reflectance spectroscopy of fibrous proteins
Amino Acids, 2012UV-visible diffuse reflectance (DR) spectra of the fibrous proteins wool and feather keratin, silk fibroin and bovine skin collagen are presented. Natural wool contains much higher levels of visible chromophores across the whole visible range (700-400 nm) than the other proteins and only those above 450 nm are effectively removed by bleaching.
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Diffuse Reflectance Spectroscopy of Human Skin Lesions
Diagnostic Optical Spectroscopy in Biomedicine III, 2005We have applied VIS-NIR diffuse reflectance spectroscopy to study different human skin lesions. A new set of features has been derived through the analysis of their spectra to discriminate among normal skin and skin lesions. © 2005 SPIE-OSA.
Cordo, M. +3 more
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Autofluorescence and diffuse reflectance spectroscopy for oral oncology
Lasers in Surgery and Medicine, 2005AbstractBackground and ObjectivesAutofluorescence and diffuse reflectance spectroscopy have been used separately and combined for tissue diagnostics. Previously, we assessed the value of autofluorescence spectroscopy for the classification of oral (pre‐)malignancies.
de Veld, Diana C. G. +5 more
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Diffuse reflectance spectroscopy in dental caries detection and classification
Signal, Image and Video Processing, 2020Machine learning and augmented reality form very important computational tools in biomedicine, neurology and stomatology as well. The present paper is devoted to a novel method of spectroscopic detection of caries lesions that changes the optical properties of the affected tissue.
Jindrich Charvát +4 more
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Diffuse reflectance spectroscopy of liver tissue
SPIE Proceedings, 2015Diffuse reflectance spectroscopy (DRS) with a fiber-optic contact probe is a cost-effective, rapid, and non-invasive optical method used to extract diagnosis information of tissue. By combining commercially available VIS- and NIR-spectrometers with various fiber-optic contact-probes, we have access to the full wavelength range from around 400 to 1600 ...
Nina Reistad +4 more
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