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Hi, to add my thoughts I believe that what your friend is looking for is the OryxNano from Douglas Instruments. We use it for screening, and it is a really trouble free machine. The consumables are not expensive (plates and sealing tape actually) and the price is rather low. I would think that for small crystallization groups (like ours) is the best robot you can buy if you have a small budget. I always thought that the posh mosquito is for big academic labs or companies that can really afford the rather large amount for consumables it requires. best wishes Demetres On 4/9/2013 4:57 ??, Artem Evdokimov wrote: > > Hi, > > The most rock-solid robotic screening platform in my experience has > been the Mosquito. It has a supply spend of ~$2000/reel of tape which > has ~27,000 tips on it so it's roughly 9-9 cents per tip - so per > plate with thee proteins on it it's about 3 bucks depending on how you > organize the set up. > > Not to say that other machines are bad, no - there are plenty of good > instruments out there but in my opinion Mosquito has unbeatable > combination of robust, repeatable set up, disposable tips and > accuracy. In my career I've tried or owned about 90% of all devices > out there (I guess that's the advantage of having several industrial > positions in a row) and so I am fairly confident that this is not a > biased comparison. > > Artem > > - Cosmic Cats approve of this message > > P.S. naturally I am not affiliated with TTP in any way. Caveat emptor. > > > On Tue, Sep 3, 2013 at 10:42 AM, Jinyi Zhu <[log in to unmask] > <mailto:[log in to unmask]>> wrote: > > Dear CCP4ers, > > Sorry for the off topic question. A friend of mine is considering > purchasing a crystallization screening robot and would like to > know which one would suit his need best. His lab would use the > robot occasionally for screening and have a limited budget. He > also wants minimum supply purchases for the robot. Could you > kindly suggest some models? Thanks! > > Btw, I have personally used Douglas OryX, ARI crystal Pheonix, > Mosquito and Hydra II-Edrop systems. > > Best, > > Jinyi > > -- ----------------------------------------------- Dr. Demetres D. Leonidas Associate Professor of Biochemistry Department of Biochemistry & Biotechnology University of Thessaly 26 Ploutonos Str. 41221 Larissa, Greece --------------------------------------------- Tel. +302410 565278 Tel. +302410 565297 (Lab) Fax. +302410 565290 E-mail: [log in to unmask] http://www.bio.uth.gr -----------------------------------------------