When I was contacted by the folks at Propel labs (who, evidently are a group of people from the original Cytomation company) that there was an upgrade path to the XDP electronics for the legacy MoFlo, I was thrilled. After about a year of begging for money from anyone that would listen to me, I finally secured the funding and was ready for the upgrade. So, why upgrade to XDP instead of buying a new sorter? Well, first of all, it was a financial thing. The cost of an upgrade is about 1/4th the cost of a new sorter. Secondly, the fluidics on our MoFlo are uncannily stable; who knows if we'd strike it rich again with a new sorter. You may also be asking, what's so great about XDP? Well, I'd never be able to explain with such elegance as Dan Fox could, so all I can say is track down the white paper Dan wrote, read it, then pick your lower jaw up off the floor. The big lure for me (besides the obsolescence of parts for the legacy MoFlo) was just the fact that we'd be able to operate with no/low hard aborts similar to the Aria, which, when paired with the higher number of droplets a jet-in-air can achieve, should allow us to sort faster and maintain high yields and purity. With our XDP upgrade, we also had all our PMTs changed, and threw on two new laser lines to boot. - Side note - We had one of these co-lase towers installed on our MoFlo, which is also a product of Propel Labs, that basically combines two laser lines so they can be run colinear into the 3-pinhold MoFlo setup. We chose to put on a UV and Red laser and run them colinear through the co-lase tower. This now gives us a 4-laser MoFlo (355, 488, 561, and 640) - End Side Note -
|The remains of the MoFlo after the tear-down|
We've been using the XDP now for about a week, and things have gone pretty well. We're still getting use to the touch-screen interface, and some of the new things in Summit, but overall, I'd say we made the right decision, and hopefully the MoFlo can dutifully give us another 10 years of service.
Once we've gotten into a rhythm on this thing and really test the bounds of speed, I'll post some data. But for now, enjoy a pic of the finished product below.
|The upgraded MoFlo XDP in all its polished glory!|