Results 111 to 120 of about 57,304 (322)

Selective Photothermolysis of Cutaneous Pigmentation by Q-switched Nd: YAG Laser Pulses at 1064, 532. and 355nm [PDF]

open access: yes, 1989
Exposure of skin to nanosecond-domain laser pulses affects the pigmentary system by a process called selective photothermolysis, in which melanosomes and pigmented cells are preferentially altered.
Anderson, R. Rox   +5 more
core   +1 more source

Pathogenic roles for fungal melanins.

open access: yesClinical Microbiology Reviews, 2000
Melanins represent virulence factors for several pathogenic fungi; the number of examples is growing. Thus, albino mutants of several genera (in one case, mutated precisely in the melanizing enzyme) exhibit decreased virulence in mice.
E. Jacobson
semanticscholar   +1 more source

New solvents for extracting gallic acid from chestnut shells: deep eutectic solvents

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Chestnut (Castanea sativa Mill.) shell, a byproduct of chestnut processing, is a valuable source of phenolic compounds that have a range of industrial applications. This study investigated the optimization of gallic acid extraction from the outer shell of the chestnut using ultrasound‐assisted extraction (UAE) and deep eutectic solvents (DES).
Ayben Kilic‐Pekgözlü   +3 more
wiley   +1 more source

Pigment Melanin: Pattern for Iris Recognition

open access: yes, 2009
Recognition of iris based on Visible Light (VL) imaging is a difficult problem because of the light reflection from the cornea. Nonetheless, pigment melanin provides a rich feature source in VL, unavailable in Near-Infrared (NIR) imaging.
Araabi, Babak N.   +2 more
core   +1 more source

Spiders have rich pigmentary and structural colour palettes [PDF]

open access: yes, 2017
Elucidating the mechanisms of colour production in organisms is important for understanding how selection acts upon a variety of behaviours. Spiders provide many spectacular examples of colours used in courtship, predation, defence and thermoregulation ...
Blackledge, Todd A   +3 more
core   +2 more sources

Deciphering the skeletal interoceptive circuitry to control bone homeostasis

open access: yesBMEMat, EarlyView.
This review introduces the skeletal interoceptive circuitry, covering the ascending signals from bone tissues to the brain (sensors), the central neural circuits that integrate this information and dispatch commands (CPU), and the descending pathways that regulate bone homeostasis (effectors).
Yefeng Wu   +7 more
wiley   +1 more source

Identification of 180 million years old, probably unchanged melanine [PDF]

open access: yes
The comparison of the infrared spectra of recent sepia melanine and of the content of the ink sac of fossilized cuttlefish indicates that the 180 million years old substance is unchanged melanine. Both substances behave identically on heating.
Beyermann, K., Hasenmaier, D.
core   +1 more source

A diffusion study of Dopa melanin pigment [PDF]

open access: yes, 1942
LD2668 .T4 1942 F7Master of ...
Friede, Charles Robison.
core  

Internal structure and pigment granules in colored alpaca fibers [PDF]

open access: yes, 2005
Alpaca fibers have some distinct properties such as softness and warmth, which have not been fully understood in combination with the fiber internal structures.
B. A. McGregor   +12 more
core   +1 more source

Two-photon excited fluorescence lifetime imaging and spectroscopy of melanins in vitro and in vivo

open access: yesJournal of Biomedical Optics, 2012
. Changes in the amounts of cellular eumelanin and pheomelanin have been associated with carcinogenesis. The goal of this work is to develop methods based on two-photon-excited-fluorescence (TPEF) for measuring relative concentrations of these compounds.
T. Krasieva   +8 more
semanticscholar   +1 more source

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