(Phys.org)—One of the mysteries in biology is how cells can selectively diffuse potassium across a membrane. Biological systems rely on a delicate balance between these potassium and sodium ion concentrations in the surrounding ...
African mole rats are insensitive to many kinds of pain. As an international research team led by the MDC's Gary Lewin reports in Science, this characteristic has allowed mole rats to populate new habitats. Thanks to a genetic ...
Plants & Animals
May 30, 2019
1
243
Plants breathe and "sweat" through stomata, microscopic pores found on leaves, stems and other plant organs. Through the stomata, plants take up carbon dioxide for photosynthesis and breathe out the products of this process, ...
Cell & Microbiology
Dec 6, 2016
0
4
(Phys.org)—Researchers in Germany and the US have used scaffolded DNA origami techniques to create ion channels or pores that span and penetrate lipid membranes and mimic natural ion channels.
For the first time, scientists have succeeded in recording the current in membrane channels of contracting cardiac cells. To do this, the scientists combined an atomic force microscope with a widely used method for measuring ...
Bio & Medicine
Feb 17, 2015
0
25
Scientists at Allen Discovery Center at Tufts University and Harvard Medical School have revealed how, in the case of limb formation, the electrical patterns formed within an embryo initiate a cascade of molecular changes ...
Biotechnology
Oct 7, 2019
0
660
A year and a half ago, researchers at Brown University found a molecular gas pedal for melanin production. Now they've found a brake. For scientists, the finding deepens not only the basic understanding of how eyes, skin ...
Archaeology
May 27, 2016
0
40
Users from Argonne's Materials Science Division and University of Chicago's Pritzker School of Medicine, working collaboratively on a user science project with CNM's Nanobio Interfaces Group, have discovered that nanostructured ...
Nanomaterials
Dec 9, 2009
1
0
(Phys.org)—The market value for deuterated drugs has recently been estimated at over a billion dollars. Such drugs are simply molecules in which one or more hydrogen atoms are replaced with deuterium. While these kinds ...
All plant cells can be made to react by touch or injury. The carnivorous Venus flytrap (Dionaea muscipula) has highly sensitive organs for this purpose: sensory hairs that register even the weakest mechanical stimuli, amplify ...
Plants & Animals
Dec 11, 2020
0
154
