Results 1 to 10 of about 21,643 (260)

Investigation of Biosubjects with Diffuse Reflectance Spectroscopy [PDF]

ACS Omega
Mei-Yu Hsu, Cheng-Yoong Pang, Shinn-Zong Lin, Wen-Jui Lo, Hsiao-Chi Lu, Yang-Hsiung Fan, Ton-Rong Tseng, Bing-Ming Cheng   +7 more
doaj   +3 more sources

In vivo diffuse reflectance spectroscopic analysis of fatty liver with inflammation in mice

Surgery Open Science, 2021
Background: Nonalcoholic steatohepatitis is a progressive liver disease that can lead to cirrhosis, hepatocellular carcinoma, and hepatic failure. Thus, the diagnosis of nonalcoholic steatohepatitis, especially discrimination from nonalcoholic fatty ...
Yasuhiro Takihata, MD, Satoko Kawauchi, PhD, Sho Ogata, MD, PhD, Izumi Nishidate, PhD, Shunichi Sato, PhD, Junji Yamamoto, MD, PhD, Yoji Kishi, MD, PhD   +6 more
doaj   +1 more source

Early Noninvasive Monitoring of Hypoxic State of Diabetic Foot Based on Diffuse Reflectance Spectroscopy

Frontiers in Physics, 2022
Early accurate diagnosis and assessment severity of the hypoxic state of diabetic foot is of paramount importance. In this paper, a noninvasive monitoring method of the hypoxic state of the diabetic foot based on diffuse reflectance spectroscopy is ...
Ge Xu, Ge Xu, Liquan Dong, Liquan Dong, Liquan Dong, Jing Yuan, Jing Yuan, Yuejin Zhao, Yuejin Zhao, Yuejin Zhao, Ming Liu, Ming Liu, Ming Liu, Mei Hui, Mei Hui, Lingqin Kong, Lingqin Kong, Lingqin Kong   +17 more
doaj   +1 more source

Diffuse Reflectance Spectroscopy of the Oral Mucosa: In Vivo Experimental Validation of the Precancerous Lesions Early Detection Possibility

Diagnostics, 2023
This article is devoted to the experimental validation of the possibility of early detection of precancerous lesions in the oral mucosa in vivo using diffuse reflectance spectroscopy in the wavelength range from 360 to 1000 nm. During the study, a sample
Alexander V. Kolpakov, Anastasia A. Moshkova, Ekaterina V. Melikhova, Diana Yu. Sokolova, Natalia P. Muravskaya, Andrey V. Samorodov, Nina O. Kopaneva, Galina I. Lukina, Marina Ya. Abramova, Veta G. Mamatsashvili, Vadim V. Parshkov   +10 more
doaj   +1 more source

Dispensability of the conventional Tauc’s plot for accurate bandgap determination from UV–vis optical diffuse reflectance data

Results in Optics, 2022
The use of the conventional Tauc’s method to determine optical bandgap energy from UV–vis spectroscopy data has been overemphasized for decades. However, a misuse of the Tauc’s formula in conjunction with the Kubelka-Munk function to determine the ...
Peverga R. Jubu, O.S. Obaseki, A. Nathan-Abutu, F.K. Yam, Yushamdan Yusof, M.B. Ochang   +5 more
doaj   +1 more source

Dual-Slope Diffuse Reflectance Instrument for Calibration-Free Broadband Spectroscopy

Applied Sciences, 2021
This work presents the design and validation of an instrument for dual-slope broadband diffuse reflectance spectroscopy. This instrument affords calibration-free, continuous-wave measurements of broadband absorbance of optically diffusive media, which ...
Giles Blaney, Ryan Donaldson, Samee Mushtak, Han Nguyen, Lydia Vignale, Cristianne Fernandez, Thao Pham, Angelo Sassaroli, Sergio Fantini   +8 more
doaj   +1 more source

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, Fu, Henry L, Ramanujam, Nirmala   +2 more
openaire   +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, E.M. Cheng, N.F. Mohd Nasir, Emma Ziezie Mohd Tarmizi, S.K. Eng, M.S. Abdul Majid, M.J.M. Ridzuan, S.F. Khor, F.S. Ahmad Saad   +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, Farid Sheikh -Hasani   +1 more
doaj   +1 more source

Multiwavelength Fluorescence and Diffuse Reflectance Spectroscopy for an In Situ Analysis of Kidney Stones

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, Gleb S. Budylin, Nadezhda V. Zlobina, Zare A. Gevorkyan, Daria A. Filatova, Daria A. Tsigura, Artashes G. Armaganov, Andrey A. Strigunov, Olga Y. Nesterova, David M. Kamalov, Elizaveta V. Afanasyevskaya, Elena A. Mershina, Nikolay I. Sorokin, Valentin E. Sinitsyn, Armais A. Kamalov, Evgeny A. Shirshin   +15 more
doaj   +1 more source