Sentences with phrase «structure of human hair»

During the American Crystallographic Association (ACA) 2015 Meeting, which will be held in Philadelphia from July 25 - 29, Vesna Stanic, a scientist working at the Brazilian Synchrotron Light Source, will present an abstract, «Local and average structure of human hair,» describing their discovery and methods.

A new discovery about the structure of human hair is likely to change the way scientists and researchers, as well as the cosmetics industry, view and explore it in the future.

Not exact matches

They were the first to demonstrate that a microwave beam could actually lift a real structure — a tiny sail, about 1.4 inches in diameter, composed of lightweight carbon fibers 10 times thinner than a human hair.

«That means things that are smaller than the diameter of a human hair, like cells, parts of cells or the fine structure of fibers.»

So far, gene therapy attempts have only resulted in partial improvements of hearing in mouse models of specific human deafness forms that did not include severe anomalies in hair cell structure.

If the size of these crystalline structures is 1,000 times smaller than a single human hair diameter, then they are called nano - structures such as nano - rods, nano - wires, nano - ribbons, nano - belts etc..

And all of this thanks to tiny structures that are up to 1,000 times smaller than a human hair.»

Once inside the lungs, the microscopic fungal spore transforms into a spherule (pictured), a podlike structure 10 to 20 times the size of the original spore (30 or 40 microns, or about half the width of a human hair).

We already knew that E. coli can grip to human cells using hair - like appendages that have tiny protein hooks on their tips, but until now no one had worked out the structure of this protein, called FimH, or how it interacts with human cells.

Recent advances in optical physics have made it possible to use fluorescent microscopy to study complex structures smaller than 200 nanometres (nm)-- around 500 times smaller than the width of a human hair.

These structures of carbon may be tiny — a nanotube's diameter is about 10,000 times smaller than a human hair — but their impact on science and technology has been enormous.

If you've heard of «keratin,» you may already know that human hair consists primarily of keratin molecules arranged in a hierarchical sort of structure, in which the fundamental building block is known as an «intermediate filament.»

But what could you use if you wanted to create something really small — a structure less than the width of a human hair?

Using a submicron X-ray beam and transmission electron microscopy, they were able to spatially resolve the local structure of the three main regions of human hair: medulla, cortex and cuticle.

Shortly afterwards, a team led by paleontologist Derek Briggs of Yale University showed for the first time that cellular structures called melanosomes, which contain the melanin pigments that give color to skin and hair in humans and plumage in birds, can be preserved in fossil feathers.

The Stanford algorithm designs silicon structures so slender that more than 20 of them could sit side - by - side inside the diameter of a human hair.

Using the new software, the researchers designed arrays of hair - like structures with a resolution of 50 microns — about the width of a human hair.

State - of - the - art atomic force microscopes (AFMs) are designed to capture images of structures as small as a fraction of a nanometer — a million times smaller than the width of a human hair.

Materials scientist Dongsheng Li will use sophisticated microscopes to take a close look at how nanocrystals less than one - thousandth the width of a human hair assemble into branched structures while the process is taking place.

The tall blue structure, which emits red surveillance lasers, offers at its base a pool of spiraling zippers threaded with human hair (a reference, Ward says, to the fairy tale of Rapunzel in the tower).

These modified thylakoids are then immobilized on a specially designed backing of carbon nanotubes, cylindrical structures that are nearly 50,000 times finer than a human hair.

Ultraviolet A Ultraviolet B Thin layer of dead cells Hair Squamous cells Epidermis Basal layer Sweat gland Melanocyte cells Dermis Basal cell Blood vessels Figure 20.22 Science: structure of the human skin and the relationships between ultraviolet (UV - A and UV - B) radiation and the three types of skin cancer.