Results 61 to 70 of about 57,304 (322)

Polyketides, Toxins and Pigments in Penicillium marneffei [PDF]

open access: yes, 2015
Penicillium marneffei (synonym: Talaromyces marneffei) is the most important pathogenic thermally dimorphic fungus in China and Southeastern Asia. The HIV/AIDS pandemic, particularly in China and other Southeast Asian countries, has led to the emergence ...
Lau, SKP, Tam, EWT, Tsang, CC, Woo, PCY
core   +2 more sources

Quantitative photoluminescence of broad band absorbing melanins: A procedure to correct for inner filter and re-absorption effects

open access: yes, 2004
We report methods for correcting the photoluminescence emission and excitation spectra of highly absorbing samples for re-absorption and inner filter effects.
Forest   +19 more
core   +1 more source

Structure of melanins from the fungi Ochroconis lascauxensis and Ochroconis anomala contaminating rock art in the Lascaux Cave

open access: yesScientific Reports, 2017
Two novel species of the fungal genus Ochroconis, O. lascauxensis and O. anomala have been isolated from the walls of the Lascaux Cave, France. The interest in these fungi and their melanins lies in the formation of black stains on the walls and rock art
J. M. de la Rosa   +5 more
semanticscholar   +1 more source

Ultraviolet radiation and melanogenesis [PDF]

open access: yesArchive of Oncology, 2004
Light radiation is a part of the electromagnetic radiation, and it consists of the ultraviolet (UV) radiation, visible light, and infrared radiation.
Stanojević Milenko R.   +3 more
doaj   +1 more source

Hair Pigmentation: A Research Update [PDF]

open access: yes, 2005
Hair is a uniquely mammalian trait with important functions, most easily appreciated in furred mammals. Our skin and hair color contribute very significantly to our overall visual appearance by highlighting striking variations between human sub-groups ...
Bernard, Bruno A.   +2 more
core   +1 more source

Upconversion Nanoparticle‐Covalent Organic Framework Core–shell Particles as Therapeutic Microrobots Trackable With Optoacoustic Imaging

open access: yesAdvanced Materials, EarlyView.
Upconversion nanoparticle‐covalent organic framework core–shell particles provide enhanced contrast for optoacoustic imaging by leveraging the optical absorption of upconversion luminescence within the covalent organic framework matrix. Beyond their role as contrast agents, these particles enable customizable therapeutic agent loading and release, as ...
Dong Wook Kim   +8 more
wiley   +1 more source

Complex Plumage Patterns Can Be Produced Only with the Contribution of Melanins

open access: yesPhysiological and Biochemical Zoology, 2017
Birds exhibit an extraordinary diversity of plumage pigmentation patterns. It has been overlooked, however, that complex patterns can be produced only with the contribution of melanins because these are the only pigments under direct cellular control. We
I. Galván   +2 more
semanticscholar   +1 more source

Photonic Nanomaterials for Wearable Health Solutions

open access: yesAdvanced Materials, EarlyView.
This review discusses the fundamentals and applications of photonic nanomaterials in wearable health technologies. It covers light‐matter interactions, synthesis, and functionalization strategies, device assembly, and sensing capabilities. Applications include skin patches and contact lenses for diagnostics and therapy. Future perspectives emphasize AI‐
Taewoong Park   +3 more
wiley   +1 more source

Comparative Biophysical and Ultrastructural Analysis of Melanins Produced by Clinical Strains of Different Species From the Trichosporonaceae Family

open access: yesFrontiers in Microbiology, 2022
Melanin is one of the most studied virulence factors in pathogenic fungi. This pigment protects them from a series of both environmental and host stressors.
Iara Bastos de Andrade   +9 more
doaj   +1 more source

Eumelanin and pheomelanin are predominant pigments in bumblebee (Apidae: Bombus) pubescence [PDF]

open access: yes, 2017
Background: Bumblebees (Hymenoptera: Apidae: Bombus) are well known for their important inter- and intra-specific variation in hair (or pubescence) color patterns, but the chemical nature of the pigments associated with these patterns is not fully ...
Alberto, Jorge   +2 more
core   +2 more sources

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