Hi, Your email mentions "drop".
What about trying another technique where you do not have "drops", such as the liquid interface diffusion method (in capillaries), or the use of dialysis ? Crystallisation under oil (injection of the 2 components under "oil") could also be tried. Fred > Message du 14/11/11 22:15 > De : "Nian Huang" > A : CCP4BB@JISCMAIL.AC.UK > Copie à : > Objet : [ccp4bb] [off topic] Control of crystals' direction and position in > the drop. > > Dear All, > Does anybody find a way to control a crystal's positioning in the drop? I > have needle shaped crystals. What I found out is that the vertical > positioned crystals always grow much thicker than the crystals laying > flatly. But unfortunately, it is a completely random event and only 1% > crystals can appear vertically. I have tried different formats of plates > and equilibration techniques w/o much success. Any suggestion is highly > appreciated. > > Nian Huang, Ph.D. > UT Southwestern Medical Center >