Sentences with phrase «by the electron microscope»

In this image, captured by an electron microscope, HIV is infecting these CD4 T immune cells.

As a student in Soviet Bratislava, Makuwa says she was fascinated by the electron microscope, a massive instrument that revealed startling insights through images: stringy cell membranes and steampunk viral injection systems.

The result is an array of oriented ordered porous pyramids with a well - defined cubic lattice of pores, confirmed by electron microscopes at the U.S. Department of Energy's (DOE's) EMSL, a scientific user facility.

The results, and some incredible images taken by electron microscope, were published in Science on Sunday night.

Not exact matches

As an algae biologist I was initially struck by the cover graphic: a stained glass window made of diatoms, the tiny planktonic creatures whose exquisite outer shells are visible only through the electron microscope.

Let us think of an electron microscope giving the situation of a target T with an atom A in the target with an electron coming in and being scattered by the atom.

This additional contribution can be determined by comparing the X-ray measurements taken early on during the growth of the wire, with the electron microscope measurement after growth has ended.

These photos show UV - irradiated amorphous water ice observed by a transmission electron microscope as the temperature rose (25K / -248 C / -414 F, 70K / -203 C / -333 F, 96K / -177 C / -287 F, 120K / -153 C / -243 F).

Using a scanning electron microscope to examine minute fossils, Porter found perfectly circular drill holes that may have been formed by an ancient relation of Vampyrellidae amoebae.

The 13 - foot - tall instrument, made by Nion Co., is named HERMES, short for High Energy Resolution Monochromated Electron energy - loss spectroscopy - Scanning transmission electron micElectron energy - loss spectroscopy - Scanning transmission electron micelectron microscope.

Scanning electron microscope analysis of the eggshells confirmed that they were indeed laid by turkeys.

The image, captured by a scanning electron microscope, was taken as the nanowires grew on silicon at room temperature.

This was complemented by obtaining high - resolution images and electron diffraction patterns of the material's atomic structure using Hokkaido University's high voltage electron microscope.

Using a recently installed high - powered electron microscope at Imperial, a team of researchers lead by Dr Morgan Beeby from the Department of Life Sciences has been able visualize these motors in unprecedented detail.

This A-beta peptide fibril has been rendered in 3 - D by a transmission electron microscope, providing the most detailed look yet at the telltale sign of Alzheimer's disease.

The special treatment alters the chemical composition of the complex sandwich structure — thereby altering its electronic properties, as confirmed by various methods including detailed electron microscope investigations.

This is a transmission electron microscope image of the membrane, provided by the Ernst Ruska - Centre.

The team, led by Prof. Yuichi Ikuhara, applied the focused electron beam of a scanning transmission electron microscope (STEM) to irradiate SrNbO3.4 crystals, and demonstrated a precise control of a phase transformation from layered SrNbO3.4 to perovskite SrNbO3 at the atomic scale.

These scanning electron microscope images of coccolithophorids were all taken by Markus Geisen of the Alfred Wegener Institute for Polar and Marine Research in Bremerhaven, Germany.

To achieve this the researchers took advantage of the manner in which Fe atoms move across the surface of graphene when irradiated by electrons in a transmission electron microscope (TEM).

Professor Zhang's team were able to visualize the pinning, stretching and rupturing of cervical cancer cells by immunostaining different parts of the cells and viewing them under a confocal fluorescent microscope and a high - resolution scanning electron microscope (SEM).

Under an electron microscope, it looked like a necklace of fluffy beads separated by narrow strings of compact silk.

He and his group now plan to enhance still further the resolution attainable with their cryo - electron microscope, and will then use it to investigate the structures of ribosomes that have been brought to a halt by other chemical agents.

«Whether we add an electron using the microscope or by irradiating the titanium oxide — the end result is the same,» says Ulrike Diebold.

The technique is «very important,» he says, because it will extend the capabilities of conventional electron microscopes and should allow «atom - by - atom magnetic analysis in the near future.»

The adaptation of the x-ray PAD to the scanning transmission electron microscope (STEM) was supported by the Kavli Institute at Cornell for Nanoscale Science.

Noah Bronstein saw a very interesting feature during routine transmission electron microscope (TEM) observations during particle synthesis: only the lead - rich facets of the PbS molecule were covered by oleates.

Magnification by a scanning electron microscope (SEM) and transmission electron microscope (TEM) showed that the high performance of the conductor was due to the self - formation of silver (Ag) nanoparticles — one - thousandth the size of the Ag flakes and dispersed uniformly between the flakes in the fluorine rubber — after the conductive composite paste was printed and heated.

The single - atom transistor is made by carving a slot in a hydrogen - coated silicon wafer with a tunneling electron microscope and depositing a single phosphorus atom in the hole.

Images taken with an electron microscope confirmed that not only was its DNA separate from the rest of the cell, it was enclosed by a double membrane — just like the membrane envelope surrounding the nucleus of complex cells.

The slices of brain will be turned into digital images by an automated electron microscope.

By increasing the energy of the electrons, scientists are increasing the resolution of the CEBAF microscope for probing ever more deeply into the nucleus of the atom.

A team led by Jian Zi of Fudan University in Shanghai examined peacock tail feathers using both an optical microscope and a scanning electron microscope.

By using an atomic - resolution aberration - corrected (scanning) transmission electron microscope in combination with micromagnetic simulations the authors could reveal for the first time the atomic structure of the single phases present and establish a direct correlation to the macroscopic magnetic properties.

Drivers will use electrons from the tip of a scanning tunnelling microscope (STM) to help jolt their molecules along, typically by just 0.3 nano - metres each time — making 100 nanometres «a pretty long distance», notes physicist Leonhard Grill of the University of Graz, Austria, who co-leads a US — Austrian team in the race.

This image shows a representative cement micropillar sample imaged by scanning electron microscope.

By using what is known as an ion microscope to detect these ions, the scientists were able, for the first time, to observe the interaction of two photons confined in an attosecond pulse with electrons in the inner orbital shells of an atom.

Previously such studies could only be achieved by X-ray crystallography, but using the electron microscope will allow us to tackle protein complexes which no one has been able to crystallise, and to do this under conditions which are much closer to those in the human body.»

He confirmed this by isolating the blebs and examining them more thoroughly under the electron microscope.

Using electron microscopes, for example, we can probe animal brains neuron - by - neuron, connection - by - connection, in the hope of discovering characteristic circuits that repeat themselves throughout the brain.

Here, there aren't as many bacteria in thick biofilms, and viruses swarm the microbes (as seen in this image from an electron microscope), picking them off one by one.

Those probes can image a surface at the atomic level by detecting the tunneling of electrons from the surface across a small gap to the microscope's tiny scanning tip.

To identify the location of each element with atomic precision, the researchers used a method in which the electron beam of one of the world's leading ultrahigh - resolution electron microscopes is finely focused, sent through the specimen and, by interactions with the specimen, loses part of its energy.

The team envisions integration across scales by integrating images from different sources, such as light microscopes, focused ion beam scanning electron microscopes (FIBSEM), and TEM.

Services provided by EMBL Heidelberg include the Core Facilities which provide internal users, collaborators and visitors with access to excellent facilities for high - throughput analysis including microarrays, protein production, mass spectrometry, DNA sequencing, advanced light and electron microscopes and chemical genomics.

Then, experimentalists Peter Sprau and Andrey Kostin (both of Brookhaven Lab and Cornell) used a scanning tunneling microscope at the Center for Emergent Superconductivity - a DOE Energy Frontier Research Center at Brookhaven Lab - to measure the energy and momentum of electrons in iron - selenide samples that were synthesized by Anna Bohmer and Paul Canfield at DOE's Ames Laboratory.

Samples were critical point dried using a Tousimis Samdri - 780a and imaged by a Hitachi S2600 scanning electron microscope at Washington University's Central Institute of the Deaf.

A team led by Robert Weatherup of the University of Cambridge in the UK and the Lawrence Berkeley National Laboratory in the US obtained their videos using a specifically modified scanning electron microscope (SEM).

Upon characterizing their new bilayer building block, the researchers found that the two mismatched layers had self - assembled into a repeating long - range atomic order that could be directly visualized by the Moiré patterns they showed in the electron microscope.

Shown is a cross-section of pristine (left) and damaged bismuth vanadate, a thin - film semiconductor, taken by a transmission electron microscope.