Results 31 to 40 of about 31,293 (301)
Determination of ambroxol in syrups using diffuse reflectance spectroscopy
Química Nova, 2009 This paper reports an analytical method for the determination of ambroxol in micellar medium by spot test-diffuse reflectance spectroscopy. The reflectance measurements were performed analyzing the colored compound (λ= 520 nm) produced from the ...
José L. Rufino +4 more
doaj +1 more source
Light distribution modulated diffuse reflectance spectroscopy
Biomedical Optics Express, 2016 Typically, a diffuse reflectance spectroscopy (DRS) system employing a continuous wave light source would need to acquire diffuse reflectances measured at multiple source-detector separations for determining the absorption and reduced scattering coefficients of turbid samples.
Pin-Yuan, Huang +4 more
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Near-Infrared Spectroscopy for Growth Estimation of Spirulina platensis Cultures
Methods and ProtocolsThe present study proposes the use of Near-Infrared (NIR) spectroscopy as a rapid method for estimating the growth of Spirulina platensis cultures, avoiding any sample manipulation or pretreatment. NIR spectroscopy in diffuse reflectance mode was used on
Lamprini Malletzidou +4 more
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Assessing the amount of the anatase and rutile phases of TiO2 by optical reflectance measurements
Results in Physics, 2021 The anatase (A) and rutile (R) phases of a series of titanium dioxide (TiO2) samples were investigated by optical diffuse reflectance spectroscopy. The samples consisted of commercial A and R high-purity TiO2 powders mixed together according to the Rmass/
A.R. Zanatta
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Determination of Copper(II) Ions by Diffuse Reflectance Spectroscopy Method
Тонкие химические технологии, 2019 A method for copper(II) determination based on copper(II) ions interaction with the organic reagent picramine-ε, concentrating the formed complex on a solid-phase matrix and recording diffuse reflectance spectroscopy spectra by a portable combined LED ...
I. I. Kuzmin +4 more
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Artificial neural networks based estimation of optical parameters by diffuse reflectance imaging under in vitro conditions [PDF]
Journal of Innovative Optical Health Sciences, 2017 Optical parameters (properties) of tissue-mimicking phantoms are determined through noninvasive optical imaging. Objective of this study is to decompose obtained diffuse reflectance into these optical properties such as absorption and scattering ...
Mahmut Ozan Gökkan, Mehmet Engin
doaj +1 more source
FEBS Letters, EarlyView.We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace +6 more
wiley +1 more source
Design of a new optic probe for diffuse reflectance spectroscopy
2015 23nd Signal Processing and Communications Applications Conference (SIU), 2015 Diffuse reflectance spectroscopy is a non-invasive spectroscopic technique for studying the optical properties of a biological tissue and hence can be used to detect chromophore concentration from ...
Yunus Karamavus +3 more
openaire +2 more sources
Molecular Oncology, EarlyView.Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau +36 more
wiley +1 more source
Diffuse Reflectance Spectroscopy with Infrared Thermography for Accurate Prediction of Cellulitis
JID Innovations, 2021 Cellulitis is frequently misdiagnosed owing to its clinical mimickers, collectively known as pseudocellulitis. This study investigated diffuse reflectance spectroscopy (DRS) alone and in combination with infrared thermography (IRT) for the ...
Adam B. Raff +10 more
doaj +1 more source