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Growing L-Glutamine & Beta Alanine crystals

 
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Don Parsons



Joined: 30 Jan 2014
Posts: 11
Location: Madison, Wisconsin

PostPosted: Sun Mar 31, 2019 6:55 am    Post subject: Growing L-Glutamine & Beta Alanine crystals Reply with quote

I have seen some beautiful images of L-Glutamine & Beta Alanine crystals photographed with polarized light. I have tried numerous times to grow som of these crystals on a microscope slide without success. Do any of you have a technique that works?
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Don Parsons
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spongepuppy



Joined: 26 Nov 2012
Posts: 83
Location: Sydney, Australia

PostPosted: Sun Apr 28, 2019 1:34 am    Post subject: Reply with quote

Hi Don,

I assume you mean this sort of thing:
https://www.instagram.com/p/BiJWTN9AsSd/
https://www.instagram.com/p/BtyDkD4hQBG/

The proportion of the two solutes is critical to achieving these forms - I generally start from a solution of 4:1 (v/v) of beta-alanine to l-glutamine and vary concentrations until I get something that works.

Ensure that your slides are extremely clean - if they are even slightly hydrophobic the results are generally unusable.
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Matt Inman
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Harald



Joined: 13 May 2011
Posts: 564
Location: Steinberg, Norway

PostPosted: Thu May 02, 2019 2:40 pm    Post subject: Reply with quote

Hi,
Thank you both for bringing this up Very Happy

Quote:
The proportion of the two solutes is critical to achieving these forms - I generally start from a solution of 4:1 (v/v) of beta-alanine to l-glutamine and vary concentrations until I get something that works.


Now I've tried this and made notes of the concentration. Hope to get something to work. At least its a good starting point Very Happy
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Harald

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