Results 1 to 10 of about 19,017 (243)

Diffuse Reflectance Spectroscopy with Dilution: A Powerful Method for Halide Perovskites Study [PDF]

Molecules, 2023
Halide perovskites and their low-dimensional analogs are promising semiconductor materials for solar cells, LEDs, lasers, detectors and other applications in the area of photonics.
Aleksei O. Murzin, Anna Yu. Samsonova, Constantinos C. Stoumpos, Nikita I. Selivanov, Alexei V. Emeline, Yury V. Kapitonov   +5 more
doaj   +2 more sources

Diffuse reflectance spectroscopy for enhanced diagnostic precision in breast cancer [PDF]

Journal of Translational Medicine
Purpose Vacuum-assisted breast biopsy (VABB), widely used for diagnosing breast cancer, is prone to sampling errors that may necessitate repeat procedures and delay treatment.
Lianne Feenstra, Marcos Da Silva Guimaraes, Caroline A. Drukker, Frederieke van Duijnhoven, Behdad Dashtbozorg, Theo J. M. Ruers   +5 more
doaj   +2 more sources

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 simulations, which are iteratively applied to optimize the reconstruction of the optical parameters.
Lan Q, McClarren RG, Vishwanath K.
europepmc   +3 more sources

Optical sensor for fast and accurate lung cancer detection with tissue autofluorescence and diffuse reflectance spectroscopy [PDF]

Thoracic Cancer
Background Cancer is a severe threat to human health, and surgery is a major method of cancer treatment. This study aimed to develop an optical sensor for fast cancer tissue.
Xianbei Yang, Anzhi Chen, Kaicheng U, Sophia Meixuan Zhang, Peihao Wang, Zheng Li, Yi Luo, Yong Cui   +7 more
doaj   +2 more sources

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, I. I. Kuzmin, Yu. I. Fabelinsky, T. Kh. Chyong   +3 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

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

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