Results 21 to 30 of about 19,017 (243)

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

Journal 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, Tangermann-Gerk Katja, Adler Werner, Zam Azhar, Stelzle Florian, Nkenke Emeka, Schmidt Michael   +6 more
doaj   +1 more source

EXPLORE THE CHARACTER OF SOIL SPECTRAL REFLECTANCE RELATE TO THE SOIL ORGANIC MATTER CONTENT

Jurnal Teknik Pertanian Lampung, 2019
The visible and near-infrared (Vis-NIR) diffuse reflectance spectroscopy has emerged as a rapid and low-cost tool for extensive investigation of soil properties.
Sari Virgawati, Muhjidin Mawardi, Lilik Sutiarso, Sakae Shibusawa, Hendrik Segah, Masakazu Kodaira   +5 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]

Materials 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, Juan Fernando Montoya Carvajal, Oscar Jaime Restrepo Baena   +2 more
doaj   +1 more source

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, Joel M. Santos, Mayra A. Rodrigues, Helena R. Pezza, Leonardo Pezza   +4 more
doaj   +1 more source

Near-Infrared Spectroscopy for Growth Estimation of Spirulina platensis Cultures

Methods 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, Eleni Kyratzopoulou, Nikoletta Kyzaki, Evangelos Nerantzis, Nikolaos A. Kazakis   +4 more
doaj   +1 more source

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
doaj   +1 more source

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, T. Kh. Chyong, Ya. I. Simakina, A. V. Mikhailova, Yu. I. Fabelinsky   +4 more
doaj   +1 more source

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

Intraoperative liver steatosis characterization using diffuse reflectance spectroscopy [PDF]

HPB, 2019
Liver steatosis is associated with poor outcome after liver transplantation and liver resection. There is a need for an accurate and reliable intraoperative tool to identify and quantify steatosis. This study aimed to investigate whether surface diffuse reflectance spectroscopy (DRS) measurements could detect liver steatosis on humans during liver ...
Reistad, Nina, Nilsson, Jan H., Bergenfeldt, Magnus, Rissler, Pehr, Sturesson, Christian   +4 more
openaire   +2 more sources

Antibiofilm activity of a chionodracine‐derived peptide by NMR‐based metabolomics of cell‐free supernatant of Acinetobacter baumannii clinical strains

FEBS Open Bio, EarlyView.
KHS‐Cnd peptide is able to impair biofilm formation and disaggregate mature biofilms in Acinetobacter baumannii clinical isolates. Differences in extracellular metabolites reflect changes in biofilm metabolism due to KHS‐Cnd treatment. Among the differentially represented extracellular metabolites upon KHS‐Cnd treatment, the significantly altered ...
Fernando Porcelli, Enrico Landi, Francesco Maiurano, Irene Paris, Rosanna Papa, Marco Artini, Laura Selan, Stefano Borocci, Francesco Buonocore, Esther Imperlini   +9 more
wiley   +1 more source