X-ray Spectrometry / Ezine
Flight feather shaft structure of two warbler species with different moult schedules: a study using high-resolution X-ray imaging
Date: Mar 8, 2010
Author:
Micro-computed tomography imaging was used to study the second moment of area, a structural parameter that is one determinant of bending stiffness and the cortex volume of flight feather shafts of two related warbler species
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Bucky eggs cracked
Date: Mar 1, 2010
Author: David Bradley
Unusual egg-shaped fullerene molecules are rulebreakers because they do what no other fullerenes seem to do - fuse three pentagons of carbon atoms, according to chemists in China. The discovery of these molecules could lead to new insights into fullerene chemistry as well as offering new opportunities for synthesising novel materials.
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Twenty-year old HIV problem solved
Date: Feb 15, 2010
Author: David Bradley
X-ray diffraction has led to a breakthrough in our understanding of an important aspect of the human immunodeficiency virus (HIV). The structural results lay bare a problem a solution to which had eluded scientists for more than two decades. It has the potential to one day produce better treatments for HIV/AIDS.
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Advisability of X-ray fluorescence analysis of dry residue of cow milk applied to monitor environment
Date: Feb 8, 2010
Author:
An X-ray fluorescence procedure was employed to determine the contents of 17 elements in a dry residue of cow milk.
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A metal sponge for cleaning up nuclear waste
Date: Feb 1, 2010
Author: David Bradley
An inorganic complex with an open framework can selectively trap caesium ions, including its 137 isotope, one of the most significant radioactive isotopes left behind after the Chernobyl nuclear reactor fire and a residual source of lethal radiation in the nuclear industry.
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Chaperone protects the heart
Date: Jan 15, 2010
Author: David Bradley
The protein Alda-1 repairs a common enzyme mutation. Without this repair those affected by the mutation can have a debilitating reaction to alcohol that increases their risk of certain types of cancer and may even promote some neurodegenerative diseases. Now, X-ray crystallography has revealed important details about its form and function.
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Microstructural parameters in electron-irradiated C108 silk fibers by wide-angle X-ray scattering studies
Date: Jan 11, 2010
Author:
The present study looks into the microstructural changes in C108 (Bombyx mori) silk fibers, induced by electron irradiation.
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Regulatory crystallography
Date: Jan 1, 2010
Author: David Bradley
The structure and function of a chromatin regulator in yeast has been determined using X-ray crystallography. The structure provides new insights into epigenetics and may ultimately represent a target for the development of pharmaceutical therapies for a whole range of diseases.
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Crystal first for enzyme
Date: Dec 15, 2009
Author: David Bradley
For the first time, researchers have used X-ray crystallography and NMR to directly visualize an enzyme in its low and higher-energy state and demonstrated the crucial role of interconversion between these states for catalysis. The study offers up new molecular sites as potential drug targets.
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More power to X-rays: New developments in X-ray spectroscopy
Date: Dec 7, 2009
Author:
Recent developments in X-ray spectroscopy in the last decade are reviewed, with special emphasis on the the strong natural connection between X-ray spectroscopy and materials science.
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