Hi,
Yes indeed, as Matt was kind enough to point out, we do have the HC1 installed
at station I911-3 of the MAX-II ring and you are welcome to make a rapid access
application. One advantage of MAX-lab might be that our wiggler beam is more
merciful to the crystals at room temperature than the
...@gmail.com
To: CCP4BB@JISCMAIL.AC.UK
Sent: Sunday, May 1, 2011 10:32:21 AM GMT -08:00 US/Canada Pacific
Subject: [ccp4bb] Dehydration treatments
Hi folks,
I am currently impressed by the efficiency of dehydration treatments over the
diffraction capacity of our crystals in one particular condition
Dear Israel,
as Martin pointed out we have a device here at the ESRF/EMBL, the
HC1b, that produces a stream of air with a precisely controlled RH at
the sample position that we have used with some success to monitor the
effects dehydration has on diffraction quality. The same device is
Hi Israel!
The phenomena you describe seems to be related to cryoprotection, but
you don't say anything about collection temperature or cryoprotection
used. Controlled-slow dehydration is one way of achieving optimized
cryocooling of specially fragile crystals. I would recommend you to
Dear Israel,
There is a lot to look up in this field. I believe it started with
Schick, B. Jurnak, F. (1994). Acta Cryst. D50, 563-568.
at http://scripts.iucr.org/cgi-bin/paper?gr0289
There is a nice review online at
Dear Israel,
there is also a dedicated humidity device developed at EMBL/ESRF
Grenoble that allows for systematic dehydration experiments to be
carried out at room temperature and soon at 4°C. Here is the primary
reference:
Sanchez-Weatherby, J., Bowler, M.W., Huet, J., Gobbo, A., Felisaz,
Hi Israel,
Just to add to that, and as I know you use the Diamond synchrotron, the
device mentioned is available (on advance request) on the beamline I02.
Cheers
-- David
On 1 May 2011 19:50, Martin Weik martin.w...@ibs.fr wrote:
Dear Israel,
there is also a dedicated humidity device
Dear Israel,
This paper describes a procedure to crystal desiccation that allowed the
improvement of diffraction: C. Abergel Acta Cryst. (2004). D60, 1413-1416
http://scripts.iucr.org/cgi-bin/paper?S0907444904013678
HTH
Good luck,
Catarina
--
Catarina Rodrigues, PhD Student
Molecular
