Re: [ccp4bb] Mounting needle-shaped crystals

2009-10-06 Thread Kris Tesh
y, October 6, 2009 9:04:51 AM Subject: Re: [ccp4bb] Mounting needle-shaped crystals Hi Jack, you could try the following strategy: a) use a larger loop than your needle, then before freezing carefully dip the loop onto the glass slide to reduce the amount of liquid b) if your crystal is larger th

Re: [ccp4bb] Mounting needle-shaped crystals

2009-10-06 Thread artem
t; >> http://www.xtals.org/pdfs/needles.pdf >> >> Artem >> >> -Original Message- >> From: Artem Evdokimov [mailto:ar...@xtals.org] >> Sent: Monday, October 05, 2009 9:05 PM >> To: 'Tanner, John J.'; 'CCP4BB@JISCMAIL.AC.UK' >&

Re: [ccp4bb] Mounting needle-shaped crystals

2009-10-05 Thread jpm
Dear Jack I can certainly recommend using the litholoops from molecular dimensions to mount the crystal you descibe. Most of the membrane crystal we start out with come as needles, the advantages is as mention before that the slight twist in the nylon loops isn't present. We do not have much

Re: [ccp4bb] Mounting needle-shaped crystals

2009-10-05 Thread Charlie Bond
- From: Artem Evdokimov [mailto:ar...@xtals.org] Sent: Monday, October 05, 2009 9:05 PM To: 'Tanner, John J.'; 'CCP4BB@JISCMAIL.AC.UK' Subject: RE: [ccp4bb] Mounting needle-shaped crystals Hello felow MO crystallographer, For all it's worth, a while ago I've co

Re: [ccp4bb] Mounting needle-shaped crystals

2009-10-05 Thread Artem Evdokimov
as if the sand were stone" Jorge Luis Borges -Original Message- From: CCP4 bulletin board [mailto:ccp...@jiscmail.ac.uk] On Behalf Of Tanner, John J. Sent: Monday, October 05, 2009 5:52 PM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] Mounting needle-shaped crystals Dear CCP4, I'

Re: [ccp4bb] Mounting needle-shaped crystals

2009-10-05 Thread Artem Evdokimov
quot; Jorge Luis Borges -Original Message- From: CCP4 bulletin board [mailto:ccp...@jiscmail.ac.uk] On Behalf Of Tanner, John J. Sent: Monday, October 05, 2009 5:52 PM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] Mounting needle-shaped crystals Dear CCP4, I'm looking for advice on

[ccp4bb] Mounting needle-shaped crystals

2009-10-05 Thread Tanner, John J.
Dear CCP4, I'm looking for advice on mounting thin needles for low temperature data collection. Our needles are fairly long (100-200 microns) but only 20 microns or less thick. When I pick them up with Hampton loops (0.05-0.1 mm size), the crystals tend to break as they are moved out of the drop