Yes, Tim is right… for now… in few years, with the E-XFEL, we'll get to much 
less sample, and much more time available. But that's in few years.

Leo

On Dec 10, 2013, at 10:01 AM, Tim Gruene <t...@shelx.uni-ac.gwdg.de> wrote:

> Dear Careina,
> 
> you can also apply for beamtime at PETRA-III. You get away with the same
> size crystals but only require a nano liter drop rather than a few ml of
> your sample. And you probably get beamtime much quicker because all the
> equipment is installed and collecting a data set takes very short time.
> This was demonstrated at the ECM in Warwick this year, so no need for
> FEL (at least for structure determination).
> 
> Best,
> Tim
> 
> On 12/10/2013 04:36 AM, Jens Kaiser wrote:
>> Careina,
>>  If your target is interesting enough, try to reproduce the small
>> crystals in batch and apply for FELS time. Small crystals are actually
>> an advantage there.
>> 
>> Cheers,
>> 
>> Jens
>> 
>> 
>> On Wed, 2013-12-04 at 21:41 -0800, Careina Edgooms wrote:
>>> Hi all
>>> 
>>> 
>>> Any advice on how to get bigger crystals from conditions that give
>>> showers of tiny crystals? I am getting small pretty looking individual
>>> crystals but they are too small and they don't seem to grow. In fact,
>>> in some instances if left for a couple of days they actually dissolve.
>>> I have fiddled around with mother liquor volume, protein concentration
>>> as well as drop volume (I am using hanging drop method) but none seem
>>> to make any difference and I always get the same tiny crystals. I
>>> think I might try microseeding but I haven't tried that yet. 
>>> 
>>> 
>>> Any suggestions or tricks would be welcome 
>>> Careina.
>> 
> 
> -- 
> Dr Tim Gruene
> Institut fuer anorganische Chemie
> Tammannstr. 4
> D-37077 Goettingen
> 
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