Columbia Engineering researchers have, for the first time, harnessed the molecular machinery of living systems to power an integrated circuit from adenosine triphosphate (ATP), the energy currency of life. They achieved this ...
Biochemistry
Dec 7, 2015
1
4540
Researchers from Aarhus University have collaborated with a Japanese group of researchers to establish the structure of a crucial enzyme—the so-called sodium-potassium pump—which forms part of every cell in the human ...
Cell & Microbiology
Oct 4, 2013
5
0
The story of the sodium-potassium pump has strong ties to Denmark. In 1997, the Danish scientist Jens Chr. Skou received the Nobel Prize in Chemistry for his discovery, and over the years, research on the pump has remained ...
Biochemistry
Sep 20, 2013
0
3
Can a door handle keep you healthy? That depends on what's on it. Most are teeming with bacteria: staph, E. coli, Enterococcus and sometimes even Salmonella. That stuff can make you sick.
Biochemistry
Jul 31, 2013
0
0
Multidrug resistance (MDR)—a process in which tumors become resistant to multiple medicines—is the main cause of failure of cancer chemotherapy. Tumor cells often acquire MDR by boosting their production of proteins that ...
Bio & Medicine
Oct 16, 2020
0
127
A drug delivery ion pump constructed from organic electronic components also works in plants. Researchers from the Laboratory of Organic Electronics at Linköping University and from the Umeå Plant Science Centre have used ...
General Physics
Apr 17, 2017
0
387
Our nerve and muscle cells send signals to each other using ions and molecules. Certain substances, such as the neurotransmitter GABA (gamma aminobutyric acid), are important signal substances throughout the central nervous ...
Analytical Chemistry
Nov 2, 2016
0
327
Scientists from Jülich, Grenoble, Frankfurt and Moscow uncovered the atomic structure of KR2, a light-driven transporter for sodium ions which had only recently been discovered. Based on the structural information the team ...
Cell & Microbiology
Apr 10, 2015
0
167
The transport of ions is essential for the routine maintenance of the body. For this reason cells contain specialized enzymes that act as pumps that help ions to move around and pass through boundaries.
Cell & Microbiology
Feb 18, 2011
3
0
When animals and plants are exposed to influences such as bacterial attack, odour and cold, calcium ions flow into the cells. The calcium provides the cells with a signal about what is going on outside, but as high concentrations ...
Biotechnology
Oct 21, 2012
0
0
