Instrument independent diffuse reflectance spectroscopy [PDF]
Journal of Biomedical Optics, 2011 Diffuse reflectance spectroscopy with a fiber optic probe is a powerful tool for quantitative tissue characterization and disease diagnosis. Significant systematic errors can arise in the measured reflectance spectra and thus in the derived tissue physiological and morphological parameters due to real-time instrument fluctuations.
Yu, Bing +2 more
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Analytical model for diffuse reflectance in single fiber reflectance spectroscopy
Optics Letters, 2020 Cancer progression leads to changing scattering properties of affected tissues. Single fiber reflectance (SFR) spectroscopy detects these changes at small spatial scales, making it a promising tool for early in situ detection. Despite its simplicity and versatility, SFR signal modeling is hugely complicated so that, presently, only approximate models ...
Faber, Dirk J. +3 more
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Neural network-based inverse model for diffuse reflectance spectroscopy. [PDF]
Biomed Opt Express, 2023 In diffuse optical spectroscopy, the retrieval of the optical properties of a target requires the inversion of a measured reflectance spectrum. This is typically achieved through the use of forward models such as diffusion theory or Monte Carlo ...
Lan Q, McClarren RG, Vishwanath K.
europepmc +2 more sources
Morphological and optical properties of porous hydroxyapatite/cornstarch (HAp/Cs) composites
Journal of Materials Research and Technology, 2020 This paper presents the correlation between the morphological characteristics and the diffuse reflectance (optical properties) of the porous hydroxyapatite/cornstarch (HAp/Cs) composites with various starch proportions (30, 40, 50, 60, 70, 80 and 90 wt%).
C.Y. Beh +8 more
doaj +1 more source
Epoxidation of alkenes using immobilized vanadyl Schiff base complex on montmorillonite as an efficient recyclable heterogeneous catalyst with tert-butyl hydroperoxide [PDF]
شیمی کاربردی روز, 2016 Oxovanadium(IV) Schiff base complex of N,N′-bis(5-[(triphenylphosphoniumchloride)-methyl-salicylidinenaphthal-diamine)] was synthesized, characterized and immobilized on sodium montmorillonite as a heterogeneous catalyst.
Abolfazl Bezaatpour +1 more
doaj +1 more source
Photonics, 2023 This study explores the use of diffuse reflectance spectroscopy (DRS) and multiwavelength fluorescence spectroscopy for real-time kidney stone identification during laser lithotripsy.
Polina S. Tseregorodtseva +15 more
doaj +1 more source
Diffuse reflectance mid-infrared spectroscopy is viable without fine milling
Soil Security, 2023 While diffuse reflectance Fourier transform mid-infrared spectroscopy (mid-DRIFTS) has been established as a viable low-cost surrogate for traditional soil analyses, the assumed need for fine milling of soil samples prior to analysis is constraining the ...
Jonathan Sanderman +8 more
doaj +1 more source
MANGANESE(II) DETERMINATION BY DIFFUSE REFLECTANCE SPECTROSCOPY
Тонкие химические технологии, 2017 Results of testing a prototype light-emitting diod miniphotometer for rapid and sensitive elements determination both in laboratory and in field conditions are presented. The new photometer consists of two devices providing measurements of absorbance and
Ya. I. Simakina +3 more
doaj +1 more source
Analysis of petroleum-contaminated soils by diffuse reflectance spectroscopy and sequential ultrasonic solvent extraction-gas chromatography [PDF]
, 2014 In this study, we demonstrate that partial least-squares regression analysis with full cross-validation of spectral reflectance data estimates the amount of polycyclic aromatic hydrocarbons in petroleumcontaminated tropical rainforest soils.
Mouazen, Abdul Mounem +2 more
core +1 more source
Monitoring real time polymorphic transformation of sulfanilamide by diffuse reflectance visible spectroscopy [PDF]
, 2016 This study investigated the development of a novel approach to surface characterisation of drug polymorphism and the extension of the capabilities of this method to perform ‘real time’ in situ measurements.
Mitchell, John C. +11 more
core +1 more source