Magnetic mixing creates quite a stir (w/ Video)
Sandia researchers have developed a process that can mix tiny volumes of liquid, even in complicated spaces.
Researchers currently use all types of processes to try and create mixing, with only "mixed" success. "In small devices," says Sandia materials scientist Jim Martin "people have tried all kinds of pillars and mixing cells to initiate mixing, but these approaches don't work well." Researchers need simpler and more reliable ways to mix in tiny places such as micrometer-sized channels, Martin said.
"Mixing liquids in tiny volumes," Martin said, "is surprisingly difficult." When fluid is pushed down a big pipe, eddies are generated that create mixing. But if fluid is pushed down a small pipe no eddies are generated and mixing does not occur unless you subject the fluid to tremendous pressure, which isn't usually easy or feasible, he said.
In the new method of mixing, when one turns on a particular kind of magnetic field, the magnetic particles suspended in the fluid form chains like strings of pearls. The chains start swirling around and that's what does the mixing. The particles are then removed magnetically, leaving a nice mixed-up liquid.
Lees verder: http://www.physorg.c...s175873414.html
Magnetisch mixen van kleine volumes
0 gebruiker(s) lezen dit onderwerp
0 leden, 0 bezoekers, 0 anonieme gebruikers
Ook adverteren op onze website? Lees hier meer!
- Hier ook uw vacature? 06-14
- Lucht bij een snelheid die de... 17:46 9
- Een fluorescerende stof maken 15:26 2
- Kansberekening aantal speelsl... 15:24
- Molverhoudingen van DNA 12:59 2
- dehydroazijnzuur benzylalcohol 12:08
- i.v.m Complexe getallen 20-10 3
- Hoe haal je cellen uit een pl... 20-10 7
- Roesten aluminium, staal en/o... 20-10 1
- Creditnota 20-10
- Homogeniseren en lyseren 20-10 1