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News articles about "X-ray"

Molecular structure reveals how HIV infects cells

molecular structure
In a long awaited finding a team of Chinese and US scientists has determined the high resolution atomic structure of a cell surface receptor that most strains of HIV use to get into human immune ... - Read More

Researchers Capture Speedy Chemical Reaction in Mid-Stride

can tell chemists a great deal about the processes and their efficiency However intermediates normally exist for a second or less before moving to the next step in the reaction making them extremely difficult to ... - Read More

Bismuth-carrying nanotubes show promise for CT scans

cells, cells
Scientists at Rice University have trapped bismuth in a nanotube cage to tag stem cells for X ray tracking Bismuth is probably best known as the active element in a popular stomach settling elixir and ... - Read More

Existence of new element confirmed

Element, Element
An international team of researchers led by physicists from Lund University has confirmed the existence of what is considered a new element with atomic number 115. The experiment was conducted at the GSI research facility ... - Read More

Rattling ions limit heat flow in materials used to reduce carbon emissions

A new study published today in the journal Nature Materials has found a way to suppress the thermal conductivity in sodium cobaltate so that it can be used to harvest waste energy Led by scientists ... - Read More

Researchers open a door for solid state physics: Laser processes observed with X-rays on a solid

Solid state
Without the currently available plethora of X ray methods basic research in the physical sciences would be unthinkable The methods are used in solid state physics in the analysis of biological structures and even art ... - Read More

Better insight into molecular interactions

Molecular, molecular
How exactly atoms and molecules in biochemical solutions or at solid liquid interfaces do interact is a question of great importance Answers will provide insights at processes in catalysts smart functional materials and even physiological ... - Read More

Chemists develop 'fresh, new' approach to making alloy nanomaterials

Nanomaterials, nanomaterials
Chemists in The College of Arts and Sciences have figured out how to synthesize nanomaterials with stainless steel like interfaces Their discovery may change how the form and structure of nanomaterials are manipulated particularly those ... - Read More

Watching catalysts at work at the atomic scale

Atomic, Catalysts
Developing materials with novel catalytic properties is one of the most important tasks in energy research It is especially important to understand the dynamic processes involved in catalysis at the atomic scale such as the ... - Read More

Smallest puzzle in the world

Substrate
Researchers have created three puzzle pieces of less than 1 mm in size each that may be put together to make what is likely the smallest puzzle in the world For production researchers used LIGA2.X ... - Read More

Chemistry riddle solved

Chemistry, Chemistry, Chemistry
With support from Prof Paul von Rague Schleyer from the University of Georgia USA a team of researchers including Prof Dr Ingo Krossing Dr Daniel Himmel and Franziska Scholz from the Institute of Inorganic and ... - Read More

Measuring molecules in their undistorted form

Using a special electron beam apparatus scientists at Bielefeld University can determine the precise three dimensional structure of gaseous molecules To do this Professor Dr Norbert Mitzel's research team analyses the molecules in their gaseous ... - Read More

Scientists reveal structure of a supercooled liquid

Structure, Structure
The experimental work which was performed at the German Electron Synchrotron Facility DESY in Hamburg involved levitating hot metal droplets and observing them as they cooled by irradiating them with x rays from one of ... - Read More

A potentially life-saving protein takes shape

A tiny protein called ubiquitin so named because it is present in every cell of living things as dissimilar as hollyhocks and humans may hold the key to treatment for a variety of diseases from ... - Read More

Computational chemistry draws for first time 'interactive cartographic map' of enzymes during chemical reactions

Knowing how enzymes work is key to control the chemical processes involving these biological macromolecules that have countless applications in the fields of medicine and industry Computational chemistry has enabled to draw for the first ... - Read More

Discovery of new material state counterintuitive to laws of physics

New material
When you squeeze something it gets smaller Unless you're at Argonne National Laboratory At the suburban Chicago laboratory a group of scientists has seemingly defied the laws of physics and found a way to apply ... - Read More

Carbon dioxide absorption in Antarctic seas

Carbon, Carbon dioxide, Carbon dioxide, carbon
The seas around Antarctica can at times resemble a garden Large scale experiments where scientists spray iron into the waters literally fertilizing phytoplankton have created huge human made algal blooms Such geoengineering experiments produce diatoms ... - Read More

Iron fertilization, process of putting iron into ocean to help capture carbon, could backfire

Ocean, Carbon, Ocean, carbon
A new study on the feeding habits of ocean microbes calls into question the potential use of algal blooms to trap carbon dioxide and offset rising global levels These blooms contain iron eating microscopic phytoplankton ... - Read More

Moving Iron in Antarctica

Carbon, carbon
The seas around Antarctica can at times resemble a garden Large scale experiments where scientists spray iron into the waters literally fertilizing phytoplankton have created huge human made algal blooms Such geoengineering experiments produce diatoms ... - Read More

Exposure to air transforms gold alloys into catalytic nanostructures

Alloys, Nanostructures
Gold bars may signify great wealth but the precious metal packs a much more practical punch when shrunk down to just billionths of a meter Unfortunately unlocking gold's potential often requires complex synthesis techniques that ... - Read More
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