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From: "Debajyoti Dutta" debajyoti_dutt...@rediffmail.com
To: deti...@hwi.buffalo.edu
Subject: Re: [ccp4bb] Phantom Crystals
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There may be a chance of getting crystal like formations. This I presume the
ppt or transparent skin formation with some distinct shape.
I had experienced with mounting some crystals (may be not) of particular shape
which did bot yield a single Bragg spot. During my hanging drop experiment I
discover that during crystallization process the crystal appears and the whole
drop become covered by some transparent layer. It broke into several parts when
I tried to mount the crystal. These broken shapes are so much like the crystal
that I was confused about which one I desire.
On Thu, 18 Jun 2009 03:40:46 +0530 wrote
>I'd appreciate it if people could tell me their experiences with what I
>would call "phantom crystals", or "ghost crystals". These are objects
>that display the seeming morphology of crystals (clear facets, sharp
>edges) but do not diffract X-rays AT ALL. I would not count objects
>that diffract to 30 A in this category. I mean objects that don't show
>a single Bragg spot.
>
>
>
>George T. DeTitta, Ph.D.
>
>Principal Research Scientist
>
>Hauptman-Woodward Institute
>
>Professor and Chairman
>
>Department of Structural Biology
>
>SUNY at Buffalo
>
>700 Ellicott Street Buffalo NY 14203-1102 USA
>
>(716) 898-8600 (voice)
>
>(716) 898-8660 (fax)
>
>www.hwi.buffalo.edu
>
>
>
>
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