XXTuff Reinforced Microvials - 2 ml

Cat. No. 330TX821 - XXTuff2™ non-sterile, reinforced 2 ml vials with caps, 200 count

availability: In Stock

  • Catalog Number


The new XXTuff2 microvial has the same dimensions as a standard 2 ml microcentrifuge vial with a screw cap and o-ring seal. However, it has been reinforced in critical areas to withstand the rigors of dry grinding using steel beads. Testing shows the XXTuff2 vial is over 10 times more durable than standard microvial.

Our new XXTuff2 vials improve on our earlier reinforced vial. The new XXTuff2 vials feature a skirted, free-standing bottom that reduces blow-outs to the bottom of the tube that can occur with some dry grinding protocols. The XXTuff2 vial also features a natural colored cap. This eliminates the red-sh tint some observed in their sample due to the abrasion of the red cap in our original XXTuff vials.

Vials are autoclavable and DNase and RNase free.

*When doing CryoGrinding, a variant of dry-grinding done at liquid nitrogen temperatures, our stainless steel microvials are also a good choice.

  • Other Info :

    Protocol for dry grinding small frozen samples at liquid nitrogen temperature (i.e., cryo-grinding): Three 3.2 mm dia. or two 6.25 mm dia. chrome-steel beads are added to either a 2 ml stainless steel vial or an XXTuff2 ml polypropylene vial.  The vial and beads are brought to liquid nitrogen temperature...without entrapping any liquid nitrogen inside the vial.  Then add hard frozen cartilage, skin or other tough tissue (pre-chopping the sample is not be necessary), quickly seal the vial and grind for 10-15 seconds in a Mini-Beadbeater.  The sample will be powdered.  Then promptly add liquid media of your choice to the still frozen, powdered sample in the original vial and beadbeat for 0.5-3 minutes.  The optimal beadbeating time will vary with sample type and is empirically determined with a time study of 0.5, 1, 2, and 3 minutes of beadbeating.


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