Search results for vesicles:
Sweet nothings: Artificial vesicles and bacterial cells communicate by way of sugar components
Jun 05, 2008 |
4.6 / 5 (8) |
0
For an organism to develop and function, the individual cells must exchange information, or communicate, with each other. Is it possible to learn their language and “talk to” the cells?
Live recordings of cell communication
Nanotechnology / Bio & Medicine
Aug 06, 2009 |
3 / 5 (1) |
2
Neurons communicate with each other with the help of nano-sized vesicles. Disruption of this communication process is responsible for many diseases and mental disorders like e.g. depression. Nerve signals travel from one ...
Synthetic Capsules Made of Natural Building Blocks
Mar 23, 2009 |
3 / 5 (2) |
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(PhysOrg.com) -- The basis of all life forms are vesicles: membrane-enclosed, liquid-filled “bubbles” made of lipids, proteins, and carbohydrates. Cells, which are separated from the surrounding medium by their cell membrane, ...
Gene called flower missing link in vesicle uptake in neurons
Sep 03, 2009 |
5 / 5 (1) |
0
As part of the intricate ballet of synaptic transmission from one neuron to the next, tiny vesicles - bubbles containing the chemical neurotransmitters that make information exchange possible -- travel to the tip of neurons ...
Intestinal cells surprisingly active in pursuit of nutrition and defense
Jun 29, 2009 |
not rated yet |
0
Every cell lining the small intestine bristles with thousands of tightly packed microvilli that project into the gut lumen, forming a brush border that absorbs nutrients and protects the body from intestinal ...
Neurotransmitter current not flowing through ion channels
Biology /
Aug 29, 2007 |
4.8 / 5 (13) |
0
In studying how neurotransmitters travel between cells -- by analysis of events in the dimensions of nanometers -- Cornell researchers have discovered that an electrical current thought to be present during that process does ...
Dictyostelium cells shown to lay 'breadcrumb trail' as first step in multicellular formation
Biology /
Dec 01, 2008 |
4.5 / 5 (2) |
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When starved of their food source and then presented with a chemoattractant signal like cAMP, individual Dictyostelium cells acquire a polarized morphology and aggregate to form a migrating stream. This is the first step ...
Progress Toward Artificial Cells
Aug 11, 2009 |
4.7 / 5 (3) |
1
(PhysOrg.com) -- In cosmetics, lipid vesicles, also known as liposomes, effectively transport ingredients through the skin. However, they are also used to encapsulate pharmaceuticals and release them at the intended point ...
Cells use import machinery to export their goods as well
Jul 03, 2009 |
3.5 / 5 (2) |
0
(PhysOrg.com) -- In the bustling economy of the cell, little bubbles called vesicles serve as container ships, ferrying cargo to and from the port — the cell membrane. Some of these vesicles, called post-Golgi vesicles, export ...
Cells use import machinery to export their goods as well
Jun 25, 2009 |
not rated yet |
0
Research suggests a new level of regulation for cellular export process by molecules previously assumed to be dedicated to import activities.
Biologists prove critical step in membrane fusion
Biology /
Apr 17, 2007 |
4.9 / 5 (7) |
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Cells constantly swap cargo bound in vesicles, miniscule membrane-enclosed packages of proteins and other chemicals. Before the swap can take place, the vesicle membrane must fuse with another membrane, creating channels ...
Tension in axons is essential for synaptic signaling, researchers report
Jul 20, 2009 |
5 / 5 (5) |
2
Every time a neuron sends a signal - to move a muscle or form a memory, for example - tiny membrane-bound compartments, called vesicles, dump neurotransmitters into the synapse between the cells. Researchers ...
Scientists watch membrane fission in real time
Dec 11, 2008 |
4.8 / 5 (9) |
1
Researchers at The Scripps Research Institute have solved one of biology's neatest little tricks: they have discovered how a cell's outer membrane pinches a little pouch from itself to bring molecules outside the cell inside—without ...
Viewing dye-packed vesicles causes them to explode
Biology /
Sep 25, 2007 |
3.5 / 5 (6) |
0
It’s a long-standing question: Can just the act of observing an experiment affect the results? According to a new study by Rockefeller University scientists, if the experiment uses a fluorescent dye called acridine orange, ...
Biologists spy on the secret inner life of a cell
Biology /
Oct 13, 2008 |
4.4 / 5 (10) |
1
The transportation of antibodies from a mother to her newborn child is vital for the development of that child's nascent immune system. Those antibodies, donated by transfer across the placenta before birth or via breast ...
