Atomic / Ezine
Glowing Nobel Prize
Date: Oct 15, 2008
Author: David Bradley
The Nobel Prize for Chemistry this year went to three scientists for the discovery and development of the glowing jellyfish protein green fluorescent protein (GFP). GFP underpins much of modern biochemistry specifically because of its power as an absorption and emission marker that lights up the behaviour of biological molecules.
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The trading of ancient glass beads: new analytical data from South Asian and East African soda-alumina glass beads
Date: Oct 6, 2008
Author:
Laser ablation-inductively coupled plasma-mass spectrometry has been used to study of a group of archaeological glass beads with a specific alumina-rich composition from East Africa, India and Sri Lanka.
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Diamond approach to artificial atoms
Date: Sep 15, 2008
Author: David Bradley
A new spectroscopic approach to measuring the energy levels of an atomic system has been developed by US researchers. Amplitude spectroscopy can be used to measure the energies of an artificial atom, by scanning the amplitude of the radiation from the system and so overcomes one of the main barriers remaining before powerful quantum computers can be realised.
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Mangrove trees growing in a very saline condition but not using seawater
Date: Sep 1, 2008
Author:
ICP-AES, stable isotope ratio mass spectrometry and HPLC have been used to distinguish the types of water (seawater or freshwater) in neighbouring locations in French Guiana where magrove trees flourish.
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Running with KITA
Date: Aug 15, 2008
Author: David Bradley
A new clue about the folding of proteins comes from studies with a novel technique known as kinetic terahertz absorption spectroscopy (KITA). Results have now been compared for the first time with X-ray diffraction (SAXS) results, and fluorescence and circular dichroism spectra to reveal how protein folding takes place in two stages on different timescales.
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Cadmium accumulation in the shoots and roots of 93 weed species
Date: Aug 4, 2008
Author:
The cadmium contents of the shoots and roots of 93 weed species were determined by inductively coupled plasma optical emission spectroscopy and atomic absorption spectrometry, to determine the best species for cadmium phytoremediation.
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Listening to tomographic tales
Date: Jul 15, 2008
Author: David Bradley
Researchers in the USA and The Netherlands have pieced together a picture of the most exquisite of molecular machines using electron-microscopic tomography. The team has for the first time obtained a three-dimensional structure of the gossamer-like filament of proteins found within the inner ear that gives us our sense of hearing and balance.
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Capillary electrophoresis hyphenated to ICPMS: A novel approach for anticancer metallodrugs in human serum and plasma
Date: Jul 7, 2008
Author:
The application of CE hyphenated to ICPMS has been demonstrated for the analysis of metallodrugs in real-world human serum and plasma, using the analysis of the ruthenium drug KP1019 as an example.
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Blooming chocolates under the microscope
Date: Jun 15, 2008
Author: David Bradley
Dérick Rousseau and of the School of Nutrition, at Ryerson University, in Toronto, Ontario, and Paul Smith of the YKI, Institute for Surface Chemistry, in Stockholm, Sweden have used temperature-controlled environmental electron scanning electron microscopy (SEM) to look at the needle-like spikes of cocoa butter that scatter light and make chocolate turn grey.
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Osteoporosis in a chinese population due to occupational exposure to lead
Date: Jun 2, 2008
Author:
The association of occupational lead exposure with low bone mass in a population working in a storage battery plant was studied using monophoton absorptiometry to measure bone mineral density.
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