|
dyrodium
Experienced Roboteer
Joined: 24 Aug 2004
Posts: 6476
Location: Sydney
|
Fluroscein and other UV reactive dyes
Heh. I'm trying to research these for a concept I came up with after seeing the "time fountain" on hackaday, which is worth a look at (search google). Basicaly, as far as I know there's a few dyes that are water soluble, and they react to UV light, glowing green/red/blue etc. I thought fluroscein was near perfect... however aparently it denatures in sunlight... totaly destroyed in as little as 2 hours! Diagnosis... totaly useless. I hope the buyers of those fountains on ebay new that!
Anyway, i'm calling on those who know anything in the chemistry world, i'm after a water soluble dye which is A) Legal B) Doesn't get rapidly destroyed (but a slow deminish is acceptable) and C) Not highly toxic. Also I'll need to be able to obtain it so nothing that I wouldn't be able to find.
Another thing. With UV led's, do they emit visible light too? It looks like they do on some photo's, but that might just be the camera's ability, and not ours (such as IR can be seen in cameras)
Thanks! If this works out, it'll make a damn good mdp... more details later!
EDIT: Just found this... looks fairly decent. It's in america though, any thoughts? http://www.riskreactor.com/merchant2/merchant.mv?Screen=PROD&Store_Code=RR&Product_Code=IFWB-C0++1+oz&Category_Code=IFWBOZ _________________ ( •_•)
( •_•)>⌐■-■
(⌐■_■)
YEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAH
|
Thu Nov 02, 2006 9:54 am |
|
|
|
|
|
|
|
|
|
|