Physicists reach new milestone measuring half-life of iron-60
Oldest bit of crust firms up idea of a cool early Earth
With the help of a tiny fragment of zircon extracted from a remote rock outcrop in Australia, the picture of how our planet became habitable to life about 4.4 billion years ago is coming into sharper focus.
Nanotube coating helps shrink mass spectrometers
Nanotechnology is advancing tools likened to Star Trek's "tricorder" that perform on-the-spot chemical analysis for a range of applications including medical testing, explosives detection and food safety.
Maya Long Count calendar and European calendar linked using carbon-14 dating
(Phys.org) —The Maya are famous for their complex, intertwined calendric systems, and now one calendar, the Maya Long Count, is empirically calibrated to the modern European calendar, according to an international ...
Chemists find smallest number of water molecules needed to form an ice crystal
Mapping the living cell: New technique pinpoints protein locations, helping scientists figure out their functions
To get a clear picture of what's happening inside a cell, scientists need to know the locations of thousands of proteins and other molecules. MIT chemists have now developed a technique that can tag all of ...
Scientists stitch up photosynthetic megacomplex
When sunlight strikes a photosynthesizing organism, energy flashes between proteins just beneath its surface until it is trapped as separated electric charges. Improbable as it may seem these tiny hits of ...
Study resets date of earliest animal life by 30 million years
University of Alberta researchers have uncovered physical proof that animals existed 585 million years ago, 30 million years earlier than all previous established records show.
New technique efficiently turns antibodies into highly tuned 'nanobodies'
Antibodies, in charge of recognizing and homing in on molecular targets, are among the most useful tools in biology and medicine. Nanobodies – antibodies' tiny cousins – can do the same tasks, for example ...
Scientists unlock mystery of how the 22nd amino acid is produced
The most recently discovered amino acid, pyrrolysine, is produced by a series of just three chemical reactions with a single precursor the amino acid lysine, according to new research.
Beewolves protect their offspring with antibiotics
Digger wasps of the genus Philanthus, so-called beewolves, house beneficial bacteria on their cocoons that guarantee protection against harmful microorganisms. Scientists of the Max Planck Institute for Ch ...
Dog skull dates back 33,000 years
If you think a Chihuahua doesn't have much in common with a Rottweiler, you might be on to something.
Mass spectrometry in your hand
If you're out in the field doing environmental testing, food checks, forensic work, or other chemical analysis, mass spectrometry is an extremely accurate detection tool with one huge drawback: You can lose ...
Study of biomarker development in mice provides a roadmap for a similar approach in humans
Researchers at Fred Hutchinson Cancer Research Center have demonstrated in mice that the performance of a novel biomarker-development pipeline using targeted mass spectrometry is robust enough to support the use of an analogous ...