Results 31 to 40 of about 594 (165)

Evaluating Tissue Mechanical Properties Using Quantitative Mueller Matrix Polarimetry and Neural Network

Applied Sciences, 2022
Evaluation of the mechanical properties of biological tissues has always been an important issue in the field of biomedicine. The traditional method for mechanical properties measurement is to perform in vitro tissue deformation experiments.
Changjiang Mi, Conghui Shao, Honghui He, Chao He, Hui Ma   +4 more
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Absolute Mueller Polarimeters Based on Dual-Rotating Imperfect Retarders and Arbitrary Ratio of Angular Velocities

Dynamics, 2023
Dual-rotating retarder polarimeters constitute a family of well-known instruments that are used today in a great variety of scientific and industrial contexts.
José J. Gil
doaj   +1 more source

Assessment of the Impact of Nanowarming on Microstructure of Cryopreserved Fibroblast-Containing 3D Tissue Models Using Mueller Polarimetry

Photonics, 2023
We studied the impact of two different thawing mechanisms on the microstructure of defrosted cryopreserved 3D tissue models using transmission Mueller microscopy and a statistical analysis of polarimetric images of thin histological sections of defrosted
Deyan Ivanov, Anika Hoeppel, Tobias Weigel, Razvigor Ossikovski, Sofia Dembski, Tatiana Novikova   +5 more
doaj   +1 more source

Mueller polarimetric imaging for fast macroscopic mapping of microscopic collagen matrix remodeling by smooth muscle cells

Scientific Reports, 2021
Smooth muscle cells (SMCs) are critical players in cardiovascular disease development and undergo complex phenotype switching during disease progression. However, SMC phenotype is difficult to assess and track in co-culture studies.
Olga Chashchina, Hachem Mezouar, Jérémy Vizet, Clothilde Raoux, Junha Park, Clara Ramón-Lozano, Marie-Claire Schanne-Klein, Abdul I. Barakat, Angelo Pierangelo   +8 more
doaj   +1 more source

Characterization of porous media based on the polarimetric matrix models

Journal of Biomedical Photonics & Engineering, 2017
In this paper, we measured the Mueller matrices of the samples with different porosity in the visible range (the wavelength of the input radiation ) for the observation angles from  to .
Sergey Savenkov, Alexander Priezzhev, Yevgen Oberemok, Ivan Kolomiets, Pertti Silfsten, Tuomas Ervasti, Jarkko Ketolainen, Kai-Erik Peiponen   +7 more
doaj   +1 more source

Nonclassical Mueller Polarimetry

Optics Express
Quantum correlations are non-classical features of quantum systems that can be harnessed in new technologies. Nonlocality, a unique byproduct of the entanglement of more than one particle, can alter the causal sequence that is present in a classical measurement. In this work, we investigate a nonlocal form of Mueller polarimetry.
Enrique J. Galvez, Chan Ju You, Valeria Rodríguez-Fajardo, Leia Francis, Bill J. Luo, Carlos Cardoso-Isidoro   +5 more
openaire   +2 more sources

Polarization-Based Digital Histology of Human Skin Biopsies Assisted by Deep Learning

Photonics
Mueller polarimetry has proven to be a powerful optical technique to complement medical doctors in their conventional histology analysis. In this work, various degenerative and malignant human skin lesions were evaluated ex vivo using imaging Mueller ...
Deyan Ivanov, Lidia Zaharieva, Victoria Mircheva, Petranka Troyanova, Ivan Terziev, Razvigor Ossikovski, Tatiana Novikova, Tsanislava Genova   +7 more
doaj   +1 more source

Mueller matrix characterization of porous media in visible

Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011
In this paper, we apply Mueller polarimetry to study different samples of porous media compacted as tablets from a pharmaceutical excipient microcrystalline cellulose. We measured the Mueller matrices of the samples with the home made polarimeter using a
S. Savenkov, A. Priezzhev, Ye. Oberemok, P. Silfsten, T. Ervasti, J. Ketolainen, K.-E. Peiponen   +6 more
doaj   +1 more source

Quantitative Analysis of 4 × 4 Mueller Matrix Transformation Parameters for Biomedical Imaging

Photonics, 2019
Mueller matrix polarimetry is a potentially powerful technique for obtaining microstructural information of biomedical specimens. Thus, it has found increasing application in both backscattering imaging of bulk tissue samples and transmission microscopic
Wei Sheng, Weipeng Li, Ji Qi, Teng Liu, Honghui He, Yang Dong, Shaoxiong Liu, Jian Wu, Daniel S. Elson, Hui Ma   +9 more
doaj   +1 more source

Polarimetric approach for well-defined impurities detection in isotropic materials [PDF]

Journal of the European Optical Society-Rapid Publications, 2014
In this paper, a new kind of approach to reveal the presence of well-defined impurities in isotropic materials is proposed and verified against actual measurements over real samples. The rationale lies in the different polarimetric symmetry properties of
Buono A., Iodice M., Rendina I., Nunziata F., Migliaccio M.   +4 more
doaj   +1 more source