This story begins several billion years ago. There's only chemistry, no biology—that is, plenty of chemical compounds exist on Earth, but life hasn't yet emerged. Then, among myriads of randomly self-assembled chemical ...
Evolution
Sep 14, 2022
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A trio of researchers working at the School of Life Sciences, Tsinghua-Peking Center for Life Sciences, has chemically synthesized a mirror-image of Pfu DNA polymerase. In their paper published in the journal Nature Biotechnology, ...
(Phys.org) —Fluorescence imaging is the most widely used method for analyzing the molecular composition of biological specimens. Target molecules, when they are present, can be "tagged" with a fluorescent label and made ...
Optics & Photonics
Sep 27, 2013
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In their search for molecules with certain characteristics, chemists have produced millions of new, increasingly complex synthetic materials by altering molecules' chemical structures.
Bio & Medicine
Aug 29, 2013
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Researchers have analyzed samples of the asteroid Ryugu collected by the Japanese Space Agency's Hayabusa2 spacecraft and found uracil, one of the informational units that make up RNA, the molecules that contain the instructions ...
Astrobiology
Mar 21, 2023
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Researchers have developed a tiny new machine that converts laser light into work. These optically powered machines self-assemble and could be used for nanoscale manipulation of tiny cargo for applications such as nanofluidics ...
Optics & Photonics
Oct 8, 2020
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All living things must obey the laws of physics—including the second law of thermodynamics, which states that the universe's disorder, or entropy, can only grow. Highly ordered cells and organisms appear to contradict this ...
General Physics
Aug 27, 2013
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For University of Wisconsin-Milwaukee researchers studying the toxicity of gold nanoparticles - a minuscule material with potentially big biomedical applications - the road to a new medical advance may or may not be paved ...
Bio & Medicine
Jul 22, 2011
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Scientists may soon be able to turn to one of the most powerful forces in biology—evolution—to help in their quest to develop new synthetic polymers.
Polymers
Apr 2, 2013
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(Phys.org)—There's a wobbly new biochemical structure in Burckhard Seelig's lab at the University of Minnesota that may resemble what enzymes looked like billions of years ago, when life on earth began to evolve – long ...
Biochemistry
Jan 30, 2013
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