I have a very strange question....I am not able to get any answer






thanks
Posted 26 April 2011 - 07:18 AM
Posted 22 February 2012 - 03:33 AM
Posted 22 February 2012 - 04:28 AM
Posted 04 August 2014 - 03:11 AM
Hello,
I've made a little research about streptavidin-coated magnetic beads. I would like to immobilize biotinylated PCR products. I have 3 candidate products. Theoretically, all of these items are ideal for this purpose.
There is huge price difference between these products (and some differences in certain parameters).
- Dynabeads® M-280 Streptavidin ; bead diameter: 2,8 um ; Binding Capacity (free biotin): 650-900 pmoles/mg beads ; concentration: 10 mg/ml ; 10 ml : 1 500 $
- solulink ; bead diameter: 0,8 um ; Binding Capacity (free biotin): > 14 nmol/mg ; concentration: 10 mg/ml ; 10 ml: 800 $
- spherotech ; bead diameter: 0,5 - 4.5 um ; Binding Capacity (free biotin): no described ; concentration: 0,5 - 1 w/v % ; 10 ml: 200-250 $
But I don't know what so special in M-280 making it very expensive.
Can anybody tell me what I should choose ?
Thanks for the answer !
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