Results 131 to 140 of about 15,215 (310)

Optimized reconstruction of the absorption spectra of kidney tissues from the spectra of tissue components using the least squares method

Journal of Biophotonics, EarlyView.
The absorption coefficient spectra of healthy and cancerous kidney tissues were reconstructed from the absorption spectra of tissue components using constant weights. Both reconstructions allowed to calculate the concentrations of the tissue components and a comparison between the healthy and chromophobe renal cell carcinoma kidney showed an increase ...
Maria R. Pinheiro, Luís E. Fernandes, Isa C. Carneiro, Sónia D. Carvalho, Rui M. Henrique, Valery V. Tuchin, Hélder P. Oliveira, Luís M. Oliveira   +7 more
wiley   +1 more source

Integrative biology of injury in animals

Biological Reviews, Volume 98, Issue 1, Page 34-62, February 2023., 2023
ABSTRACT Mechanical injury is a prevalent challenge in the lives of animals with myriad potential consequences for organisms, including reduced fitness and death. Research on animal injury has focused on many aspects, including the frequency and severity of wounding in wild populations, the short‐ and long‐term consequences of injury at different ...
Corey W. Rennolds, Alexandra E. Bely
wiley   +1 more source

Tip-Enhanced Raman Spectroscopy of Cell Wall Heterogeneity for Aspergillus Fumigatus [PDF]

arXiv
Tip-enhanced Raman spectroscopy (TERS) enables nanoscale chemical mapping of biological structures, providing high-resolution, high-signal-to-noise ratio imaging into molecular distribution and interactions beyond the capabilities of conventional Raman imaging.
arxiv  

Analysis of the experimental absorption spectrum of the rabbit lung and identification of its components

Journal of Biophotonics, EarlyView.
The broadband absorption coefficient spectrum of the rabbit lung was reconstructed from the absorption spectra of tissue components. The similar accumulation of melanin and lipofuscin was retrieved from the broadband baseline in the absorption coefficient spectrum, and the calculation of the absorption fold ratios for proteins, DNA and hemoglobin ...
Maria R. Pinheiro, Valery V. Tuchin, Luís M. Oliveira   +2 more
wiley   +1 more source

Accurate Estimation of Methemoglobin and Oxygen Saturation in Skin Tissue Using Diffuse Reflectance Spectroscopy and Artificial Intelligence

Journal of Biophotonics, EarlyView.
Discover a noninvasive method for estimating methemoglobin levels in human tissue with remarkable precision. By leveraging a novel machine learning approach using artificial neural networks, this study showcases the potential of diffuse reflectance spectroscopy (DRS) to accurately detect methemoglobin and oxygen saturation.
Isra Sahli, Wesam Bachir, Moustafa Sayem El‐Daher   +2 more
wiley   +1 more source

Ophthalmic imaging in diabetic retinopathy: A review

Clinical &Experimental Ophthalmology, Volume 50, Issue 9, Page 1082-1096, December 2022., 2022
Abstract Retinal imaging has been a key tool in the diagnosis, evaluation, management and documentation of diabetic retinopathy (DR) and diabetic macular oedema (DMO) for many decades. Imaging technologies have rapidly evolved over the last few decades, yielding images with higher resolution and contrast with less time, effort and invasiveness.
Onnisa Nanegrungsunk, Direk Patikulsila, Srinivas R. Sadda   +2 more
wiley   +1 more source

Fluorescence Lifetime Imaging Techniques—A Review on Principles, Applications and Clinical Relevance

Journal of Biophotonics, EarlyView.
This article gives an overview of the most frequently used fluorescence‐lifetime imaging (FLIM) techniques, their capabilities and typical applications in biology and clinical studies. ABSTRACT This article gives an overview of the most frequently used fluorescence‐lifetime imaging (FLIM) techniques, their capabilities, and typical applications ...
V. I. Shcheslavskiy, M. V. Shirmanova, K. S. Yashin, A. C. Rück, M. C. Skala, W. Becker   +5 more
wiley   +1 more source

The Combination of Active‐Targeted Photodynamic Therapy and Photoactivated Chemotherapy for Enhanced Cancer Treatment

Journal of Biophotonics, EarlyView.
Photoactivated chemotherapy (PACT), an oxygen‐independent light‐based therapy, utilizes chemotherapeutic regimens that remain inert until exposed to light, allowing target‐specific activation while minimizing off‐target toxicity. The integration of these techniques has the potential to improve selectivity and yield synergistic cytotoxic effects that ...
Nkune Williams Nkune, Heidi Abrahamse
wiley   +1 more source

Molecular Weight of Melanin [PDF]

, 1947
A. J. LEA
openalex   +1 more source

Current Update and Trends in Melanin Pigmentation and Melanin Biology.

The Keio Journal of Medicine, 1995
Certain aspects of current progress in melanin biology and its possible clinical relevances are reviewed with emphasis on some of our recent research activities. The important aspects discussed are (a) the biological properties of melanin pigments and their relevance to biological functions, (b) functional interaction of melanogenic/melanogenesis ...
openaire   +4 more sources