Results 21 to 30 of about 21,643 (260)

Optical Nerve Detection by Diffuse Reflectance Spectroscopy for Feedback Controlled Oral and Maxillofacial Laser Surgery

open access: yesJournal of Translational Medicine, 2011
Background Laser surgery lacks haptic feedback, which is accompanied by the risk of iatrogenic nerve damage. It was the aim of this study to investigate diffuse reflectance spectroscopy for tissue differentiation as the base of a feedback control system ...
Douplik Alexandre   +6 more
doaj   +1 more source

Analytical model for diffuse reflectance in single fiber reflectance spectroscopy

open access: yesOptics 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
openaire   +3 more sources

Determination of ambroxol in syrups using diffuse reflectance spectroscopy

open access: yesQuímica 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

Near-Infrared Spectroscopy for Growth Estimation of Spirulina platensis Cultures

open access: yesMethods and Protocols
The 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
doaj   +1 more source

Effect of the Fuels Glycine, Urea and Citric Acid on Synthesis of the Ceramic Pigment ZnCr2O4 by Solution Combustion [PDF]

open access: yesMaterials Research, 2015
In this study, ceramic nanopigment ZnCr2O4was prepared by solution combustion using glycine, urea and citric acid as fuels. The objective is to study the influence of fuel on the morphology and the diffuse reflectance spectrum.
Edgar Andrés Chavarriaga Miranda   +2 more
doaj   +1 more source

Diffuse reflectance IR spectroscopy in molecular paleontology

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов
Relevance. The need to identify new diagnostic features in the structures of related fossils and modern plants. Molecular paleontology as an independent direction has proved itself well in the part of studying fossil representatives of plant and animal ...
Vladimir P. Ivanov   +2 more
doaj   +1 more source

Light distribution modulated diffuse reflectance spectroscopy

open access: yesBiomedical 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
openaire   +2 more sources

Investigating transcription factor dynamics in health and disease using FRAP

open access: yesFEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj   +3 more
wiley   +1 more source

Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation

open access: yesFEBS Letters, EarlyView.
Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang   +2 more
wiley   +1 more source

Determination of Copper(II) Ions by Diffuse Reflectance Spectroscopy Method

open access: yesТонкие 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
doaj   +1 more source

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