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electronifty jello concentrates body fluid making tests more accurate

electronifty jello concentrates body fluids 20 times to create more effective biomedical tests
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thinking about pee tests I thought of a way to make them more effective, actually this could work with a variety of fluids.

Use polymethylmethacrylate gel to absorb all the pure water of a sample then the chemicals being measured could be concentrated 20 times.

One approach to making sure the preferrred protein stays at solution is to use the isoelectric point of the protein. Thats the place at gel electrophoresis where a particular band of protein likes to go. It has an electron affinity pH equivalent(link). Thus making the PMMA gel at a slightly different than isolectric pH would tend to keep the protein from adsorbing or absorbing Another approach is to make the PMMA get an electret that simply repels proteins of same charge to keep them at the solution.

Going further you could place a PTFE coating with water only micropores on the surface to make sure the PMMA just absorbed water molecules.

These approaches should work with other body fluids as well, making a variety of physical tests more accurate or faster.

Polymethylmethacrylate is pretty cheap its the superabsorber at diapers, thus a thing like the 2 or 3¢ birth defect screening test wetnap could actually have a coating or area of PMMA on rather cheaply. That could matter for a retest.

beanangel, Jun 08 2011

wikipedia isoelectric point pH http://en.wikipedia...i/Isoelectric_point
The pI value can affect the solubility of a molecule at a given pH. Such molecules have minimum solubility in water or salt solutions at the pH that corresponds to their pI and often precipitate out of solution. Biological amphoteric molecules such as proteins contain both acidic and basic functional groups. Amino acids that make up proteins may be positive, negative, neutral, or polar in nature, and together give a protein its overall charge. At a pH below their pI, proteins carry a net positive charge; above their pI they carry a net negative charge. Proteins can, thus, be separated according to their isoelectric point (overall charge) on a polyacrylamide gel using a technique called isoelectric focusing, which uses a pH gradient to separate proteins. [beanangel, Jun 08 2011]


       reversible ?
FlyingToaster, Jun 08 2011

       If you just want to concentrate solutes, a simple way is to shake the sample with a larger volume of butanol. The butanol absorbs a predictable amount of the water, concentrating anything that's in it (apart from lipids, I guess, which might partition into the butanol). No need to adapt it for each protein.
MaxwellBuchanan, Jun 08 2011


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