Search results
Results from the WOW.Com Content Network
The technique normally applies a negative charge called cathode so anionic protein molecules move towards a positive charge called anode. [2] Therefore, electrophoresis of positively charged particles or molecules ( cations ) is sometimes called cataphoresis , while electrophoresis of negatively charged particles or molecules (anions) is ...
Usually the component returned is the red blood cells, the portion of the blood that takes the longest to replace. Using this method an individual can donate plasma or platelets much more frequently than they can safely donate whole blood. [76] These can be combined, with a donor giving both plasma and platelets in the same donation. [citation ...
A plasma is a collection of charged particles, atomic nuclei and separated electrons, but can also be a gas containing a significant proportion of charged particles. Charged particles are labeled as either positive (+) or negative (-). The designations are arbitrary. Nothing is inherent to a positively charged particle that makes it "positive ...
1. This is the Rh-positive blood cell. 2. This is the Rh-negative blood cell. 3. These are the antigens on the Rh-positive blood cell that make it positive. The antigens allow the positive blood cell to attach to specific antibodies. Rh phenotypes are readily identified through the presence or absence of the Rh surface antigens.
Donnan equilibrium across a cell membrane (schematic). The Gibbs–Donnan effect (also known as the Donnan's effect, Donnan law, Donnan equilibrium, or Gibbs–Donnan equilibrium) is a name for the behaviour of charged particles near a semi-permeable membrane that sometimes fail to distribute evenly across the two sides of the membrane. [1]
The Lutheran antigen systems is a classification of human blood based on the presence of substances called Lutheran antigens on the surfaces of red blood cells. There are 19 known Lutheran antigens. [1] The name Lutheran stems from a blood donor's misspelled last name, reportedly named Lutteran or Lutheran.
VANCOUVER, Wash. (AP) — Over the last six years, blood center employee Dylan Smith was often asked how frequently he gave blood himself. His answer was always the same: As a gay man, he couldn't.
Some regular donors have higher platelet counts (over 300,000/mm³); for those donors, it only takes about one liter of their blood to produce a unit. Since the machine used to perform the procedure uses suction to draw blood out of a donor's body, some people who can give whole blood may have veins too small for platelet donation.