Sciencemadness Discussion Board

nanoclay stops bleeding aorta

Nixie - 25-4-2008 at 19:04

http://www.wired.com/medtech/health/news/2008/04/blood_clott...

ScienceGeek - 26-4-2008 at 04:49

Now that is interesting!

12AX7 - 26-4-2008 at 09:39

Argh, more nanobullshit!

Kaolin's particle size is well defined, and is quite large as clays go: several microns! This stuff is a thousand times beyond the nanoscale. Ball clays, and moreso, the colloidial clays like bentonite, have average particle sizes more than 10 times smaller than kaolin.

Tim

chemoleo - 26-4-2008 at 19:24

Well I guess it's probably not the size that matters (never mind the pun:P), but the chemical properties as well... tiny PE balls certainly wouldn't do the job for instance.
It also seems that absorbent properties of Kaolin help.

Why do you say nanobullshit?
I think there is a hype about it that has produced nothing tangible in reality, is that what you refer to?

12AX7 - 28-4-2008 at 13:03

Yeah, and associating everything small with the catch-all "nano". Micro is a lot bigger; leave it to the public (and proponents of "nano") to forget three orders of magnitude.

I'm really quite amazed this is only now being done, especially since they say kaolin has been used for clotting blood samples for ages. What a shame its use hadn't been drawn sooner!

Tim