Sentences with phrase «of pigment molecules»

Lentigo is characterized by hyperpigmentation, or an overpopulation of pigment molecules, that turns patches of the dog's skin black.

Manganese is a micronutrient that the body's cells can handle and forms a very stable complex with the porphyrin, a type of pigment molecule that can help to achieve the necessary properties.

Not exact matches

The retinal pigment epithelium (RPE) is a single layer of cells that accomplishes multiple functions, such as providing survival molecules that prevent photoreceptors from dying.

Blue pigment, composed of a molecule called delphinidin, is as finicky as a diva.

He has picked up signs of relatively stable organic molecules such as cholesterol and the pigment melanin, but he has never seen the tell - tale building blocks of proteins.

In nature, the Cyphochilus beetle, which is native to Southeast Asia, produces its ultra-white colouring not through pigments, but by exploiting the geometry of a dense network of chitin — a molecule which is also found in the shells of molluscs, the exoskeletons of insects and the cell walls of fungi.

Lindgren performed ToF - SIMS on the samples to confirm the presence of heme, eumelanin and proteinaceous molecules — the components of blood, pigment and protein.

Roberts says the group of fungi pigmented with melanin (which includes E. rostratum)-- the same molecule that darkens and protects human skin — seem to be generating more human infections for reasons he does not understand.

At Brown University, medical engineer Edith Mathiowitz encases molecules of water - soluble pigment within insoluble polymers.

For the handful of exoplanets with stratospheres, the absorber is typically thought to be a molecule such as titanium oxide, a close relative of titanium dioxide, used on Earth as a paint pigment and sunscreen ingredient.

They broke down an extract from the petals of cornflowers and determined the individual components of the blue pigment molecule.

A Japanese group, led by Kozo Hayaski of the Tokyo University of Education, isolated blue crystals from flower petals of the spiderwort (Commelina communis) and proposed that the crystals were composed of two pigment molecules, one of which was an anthocyanin and the other a flavone — a yellow pigment — joined to a magnesium metal ion.

He also claimed that the colour of the anthocyanins depends, like litmus paper, on whether the molecule of the pigment is in an acid or alkaline solution.

In 1896, two German scientists, Köttgen and Abelsdorff, made a curious observation: when they measured the absorption properties of visual pigments (the molecules that mediate light sensation) extracted from the eyes of freshwater fish, they found them to be «red - shifted» towards longer wavelengths than those of marine fish and land animals.

Cytochromes are electron - transporting protein pigments concerned with cell respiration that contain an iron - containing molecule called heme, allied to that of hemoglobin.

If you go for red cabbage, you'll also get a healthy dose of anthocyanins (the same pigment molecules that make blueberries blue), another powerful antioxidant with an anticancer punch.

Then there's the yellow pigmented aloin, part of the anthraquinone family of antioxidants, which inhibits the pro-inflammatory master molecule COX - 2.

The flavonoid molecules are classified as anthocyanins, belonging to the group of compounds giving red - raspberries their intense red pigment.

This plant pigment has been clinically proven to halt the production of inflammatory signaling molecules, and therefore providing antioxidant and anti-inflammatory effects.

Fucoxanthin is a vitamin A-like molecule known as a carotenoid, and it's found primarily as the major pigment in types of brown seaweed.

Not only does it better describe the case of diminishing returns (the first few molecules of pigment do the most darkening while added pigment never quite stops making it darker) but also how just a few ounces of black pigment change the temperature of a thousand pound car body sitting in the sun from luke warm to burning hot (illustrating how a tiny percentage of adulterant can have a large effect).