Sentences with phrase «of molecular size»

What they call «differential diffusion» and «lower molecular volume» I call «preferential fractionation» and «kinetic diameter», the latter being the relevant measure of molecular size at the lowest level in the firn and n the ice beneath.

Migration positions of molecular size standards are indicated on the left.

Miller's lab has been able to tune the bond - forming functions in peptide - based catalysts, which are similar to nature's enzymes in that they are composed of amino acids, but are orders of magnitude simpler in terms of their molecular size.

The trio concluded that the gene was an indivisible physicochemical unit of molecular size, and they proposed that a mutation involved the alteration of a chemical bond in that molecule.

Not exact matches

It should be mentioned that traditional or conventional filtration is typically used for the separation of suspended particles larger than 10 µm, while membrane filtration separates substances with molecular sizes less than 10 µm.

Because of various interactions, however, a membrane can not be selected purely on the basis of its salt retention, molecular weight cut - off or nominal pore size.

A liquid contains a number of dissolved or dispersed components of different molecular or particle sizes.

Although it has gluten, the gluten has a different composition and molecular size than that of modern day wheat.

Now the biggest determining of what actually gets through into breast milk depends basically upon the molecular weight of the drug, or more of a better said the mass or volume of the drug, or size of the drug.

Descriptions of nanotech typically characterize it purely in terms of the minute size of the physical features with which it is concerned — assemblies between the size of an atom and about 100 molecular diameters.

The research could help guide selection of materials for use in future molecular - size transistors.

If you increase the size of a Sudoku grid to nine by nine, you suddenly have 6.7 sextillion possible scenarios... and you get an idea of the nightmare molecular biologists faced when they tried to code even a slightly complex biological system.

A transport vehicle the size of a virus may ferry chemotherapies and other molecular cargo through the imposing blood — brain barrier

The minerals have a very rigid and well - defined framework of small molecular - sized channels, pores, and cages.

What you get is a corannulene (C20H10), a molecule that, according to a just - published study conducted with SISSA's collaboration, could be an important component of future «molecular circuits,» that is, circuits miniaturized to the size of molecules, to be used for various kinds of electronic devices (transistors, diodes, etc.).

«Molecular self - assembly of polymers offers the ability to create uniform, tailorable structures of predetermined size and shape,» Epps says.

Because the DNA cages are used as a «mold» to build the polymer particle, the particle size and number of molecular units in the polymer can be precisely controlled, says Sleiman, who holds the Canada Research Chair in DNA Nanoscience.

«A molecular thread: Flexible metal — organic frameworks with a range of pore sizes are made by threading through molecular ligands.»

Finally, the researchers created an evolutionary tree of cetaceans based on the molecular and fossil records and checked to see if the body size differences among cetaceans can be explained by their dietary preferences.

I have higher hopes for the Metabolomx test, which has 130 different molecular sensors printed on a postage - stamp - size piece of plastic.

If each generation represents a new opportunity for DNA substitutions, then generation time might explain the relation between body size and the rate of the molecular clock.

Furthermore, the scientists found that by adjusting variables like the molecular weight of the fluorine rubber, they could control the distribution and population of nanoparticles, while the presence of surfactant and heating accelerated their formation and influenced their size.

Professor Lo, who co-leads the Molecular Ecology, Evolution and Phylogenetics laboratory in the School of Life and Environmental Sciences, said termites had become heavyweights of the animal kingdom and despite their minute size, their global cumulative weight topped humans and was second only to cattle.

«We have this whole idea of one - size - fits - all diseases and drugs, but cancer is not just one molecular event.»

The «small, but perfectly formed» flies will help scientists sort out the mechanisms governing cell size and number during development, says molecular biologist Sally Leevers of the Ludwig Institute for Cancer Research in London.

LCLS can use micron size crystals and therefore have an unmatched light initiation efficiency to explore uncharted territory in the dimension of time resolution of molecular reactions,» Raimund Fromme stated, an ASU associate research professor participating in this project.

Moreover, combinations of multiple biophysical markers, such as stiffness and size, were about as good as the currently employed molecular marker at classifying stem - like activity.

The physicists increase the micro-motion velocity of the molecular ions by varying the shape and size of the ion crystal in the trap: they knead the crystal as it were by means of the alternating voltage which is applied to the trap electrodes.

What's more — in the absence of information on the underlying molecular mechanisms of her particular case — that patient will likely end up taking a one - size - fits - all pill rather than a drug tailored for her unique disease subtype.

We are exploring the conformational properties of the tetraarylporphyrine core structure with different substituents of increasing size and molecular weight.

The nanosheets, which are made of the molecular charge - transfer compound DBTTF and buckyball molecules, can expand up to 5.7 percent of its original size.

This observation is at the heart of the C - value enigma and raises many questions regarding the molecular drivers and evolutionary impacts of genome size variation.

Nanoparticle «bombs» to kill cancer, molecular - sized bridges to repair damaged hearts, and scarless surgery techniques are now on the frontier of medical innovations, with the new institute leading the way.

Mike Alexander, Alex Laskin, Yuri Desyaterik, and John Ortega, who work at DOE's Environmental Molecular Sciences Laboratory (EMSL) at PNNL and Xiao - ying Yu of PNNL's Atmospheric Science and Global Change Division, collected an extensive set of measurements of aerosol mass, size distribution, composition, and particle morphology using an array of in - situ techniques and aerosol sampling approaches.

The subsequent pharmacophore approaches used for further molecular - size reduction led to the identification of cyclic pentapeptides containing these indispensable amino acids.

By arraying nearly 18,000 genes on a glass chip about twice the size of a postage stamp and recording the expression patterns of those genes, researchers have obtained detailed molecular portraits of...

Paul Lasko and Beat Suter, at McGill University, are extending the work of the Wright laboratory (Stathakis et al., 1995) in the genetic and molecular analysis of a similarly sized genomic segment comprising polytene regions 37 and 38 and this will be an early target for the BDGP sequencing efforts.

To measure the size of the miniscule plates, the team used a transmission electron microscope in EMSL, DOE's Environmental Molecular Sciences Laboratory on the PNNL campus.

However, our understanding of the process is limited by three main factors: size, speed, and molecular complexity.

By applying the technique known as voxelation, developed by collaborators at UCLA, spatially defined regions (1 cubic millimeter in size) of the mouse brain can be characterized to develop three - dimensional (3D) relationships between cells and molecular networks.

For studies at the molecular level, Ismagilov will develop microfluidic systems capable of rapidly generating, manipulating and assaying protein aggregates of various sizes, shapes and compositions.

Nanotechnology as demarcated by size is unsurprisingly very broad, containing fields of science as diverse as surface science, organic chemistry, molecular biology, semiconductor physics, micro fabrication, molecular engineering.

This limitation of the small sample sizes or cell collections provides an exceptional challenge for surgical, immuno - and molecular pathology.

as demarcated by size is unsurprisingly very broad, containing fields of science as diverse as surface science, organic chemistry, molecular biology, semiconductor physics, micro fabrication, molecular

Drosophila imaginal discs, simple epithelial invaginations that grow one thousand fold in mass and cell number, are probably one of the best model systems to analyze at the genetic and molecular level the control of size in a growing epithelium.

Other molecular mechanisms linking the cloned 13.5 kb ws1 region to wing size evolution could also occur, including cis - regulation of prospero, changes in non-coding RNAs, or long - distance regulation of another gene.

High molecular weight genomic DNA was fragmented in a Covaris instrument (Woburn, MA, USA) to an average size of 400 nucleotides for HiSeq2000 sequencing and of 230 nucleotides for SOLiD sequencing, respectively (Table S1).

However, their large molecular size and high affinity to antigens at the tumor border limit the ability of antibodies to deeply penetrate tumor foci [1].

Due to the small molecular size of essential oils, they can penetrate the skin easily and enter the bloodstream.

Corta - Flx is a joint supplement that contains key isolates of chondroitin sulfate and glucosamine in proper molecular size, assuring passage through cell walls.