Results 21 to 30 of about 45,306 (229)

Diagnostic utility of melanin production by fungi: Study on tissue sections and culture smears with Masson-Fontana stain

open access: yesIndian Journal of Pathology and Microbiology, 2014
Background: Dematiaceous fungi appear brown in tissue section due to melanin in their cell walls. When the brown color is not seen on routine H and E and culture is not available, differentiation of dematiaceous fungi from other fungi is difficult on ...
Challa Sundaram   +3 more
doaj   +1 more source

SCD5 restored expression favors differentiation and epithelial-mesenchymal reversion in advanced melanoma [PDF]

open access: yes, 2018
Our previous data supported a role for the Stearoyl-CoA desaturase (SCD5) in protection against malignancy, whereby it appears to functionally modify tumor stroma impairing tumor spread.
Bellenghi, Maria   +8 more
core   +1 more source

Monte Carlo Analysis of Optical Interactions in Reflectance and Transmittance Finger Photoplethysmography [PDF]

open access: yes, 2019
Photoplethysmography (PPG) is a non-invasive photometric technique that measures the volume changes in arterial blood. Recent studies have reported limitations in developing and optimising PPG-based sensing technologies due to unavailability of the ...
Anatomy   +13 more
core   +1 more source

Aspergillus niger Spores Are Highly Resistant to Space Radiation [PDF]

open access: yes, 2020
The filamentous fungus Aspergillus niger is one of the main contaminants of the International Space Station (ISS). It forms highly pigmented, airborne spores that have thick cell walls and low metabolic activity, enabling them to withstand harsh ...
Cortesão, Marta   +6 more
core   +2 more sources

SPECTRAL PROPERTIES OF TWO WATER-SOLUBLE MELANINS [PDF]

open access: yesBiotechnologia Acta
Aim. The work was purposed to study the spectral properties of two types of water-soluble melanins to clarify the nature of the optical absorption and emission centers in them. Materials and methods.
V.M. Kravchenko   +8 more
doaj   +1 more source

A case report: retigabine induced oral mucosal dyspigmentation of the hard palate [PDF]

open access: yes, 2015
Background Dyspigmentation of the oral mucosa has a multitude of aetiological causes. Retigabine, a new antiepileptic drug, has the potential side effect of inducing a blue/purple pigmentation of the oral mucosa in addition to the skin, lips, nails and ...
Beacher, Nicholas G.   +2 more
core   +1 more source

Eumelanin Graphene-Like Integration: The Impact on Physical Properties and Electrical Conductivity

open access: yesFrontiers in Chemistry, 2019
The recent development of eumelanin pigment-based blends integrating “classical” organic conducting materials is expanding the scope of eumelanin in bioelectronics.
Roberto Di Capua   +6 more
doaj   +1 more source

Assessment of melanogenesis in a pigmented human tissue-cultured skin equivalent

open access: yesIndian Journal of Dermatology, 2019
Background: Organotypic tissue-cultured skin equivalents are used for a broad range of applications either as possible substitute for animal tests or for transplantation in patient-centered care.
Nadja Nicole Zoller   +8 more
doaj   +1 more source

Evaluation of gingival pigmentation in children exposed to and not exposed to environmental tobacco smoking

open access: yesSRM Journal of Research in Dental Sciences, 2014
Background and Aim: The exposure to environmental tobacco smoke (ETS) has been recognized as a strong contributor to respiratory disorders, lung cancer, peripheral vascular function and death. Increased gingival pigmentation in smokers is established. In
Shabeer Mohamed Madani, Biju Thomas
doaj   +1 more source

Size Control and Fluorescence Labeling of Polydopamine Melanin-Mimetic Nanoparticles for Intracellular Imaging. [PDF]

open access: yes, 2017
As synthetic analogs of the natural pigment melanin, polydopamine nanoparticles (NPs) are under active investigation as non-toxic anticancer photothermal agents and as free radical scavenging therapeutics.
Amin, Devang   +3 more
core   +3 more sources

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