Hi, A crazy solution may be to make a cuvette with a 3D printer. I'm not sure if the available resins are transparent to DLS.
Best wishes, Reza Reza Khayat, PhD Assistant Professor The City College of New York Department of Chemistry, MR-1135 160 Convent Avenue New York, NY 10031 Tel. (212) 650-6070 www.khayatlab.org ---- Original message ---- >Date: Thu, 14 Aug 2014 15:13:48 -0700 >From: CCP4 bulletin board <CCP4BB@JISCMAIL.AC.UK> (on behalf of Daniel >Anderson <d...@mbi.ucla.edu>) >Subject: Re: [ccp4bb] dynapro DLS cuvettes >To: CCP4BB@JISCMAIL.AC.UK > >Hello, Gloria and everybody, > >I'm typing most of this reply from memory. > >When I tried to buy one, my recollection was that it was available from >Hellma, but I couldn't (and still can't) find my Hellma paper catalog, >and for some reason I did not find the Hellma web site when I wanted to >buy a cuvette. I have since learned to spell "Google". > >I have the starnacells dot com paper catalog in front of me. What you >want is almost catalog number 16.12F-Q-1.5/Z15. The Z parameter should >probably be closer to 14 than 15mm. > >That catalog number from Starna is probably the one that I bought some >years ago, and here is my recollection of what happened: The cell >arrived, and I found that light did not go through unless I pushed it >sideways. I measured the old Dynapro cuvette, and it was 12.45x12.45mm. >The cell from Starna was 12.25x12.35mm. I returned it and Starna sent me >a replacement that was 12.35x12.25mm. When this comedy of rectangular >cuvettes tired me I returned the nth cell that they sent me and gave up >trying to buy one. > >One more detail: the above recollections are about a 13,714-year old >DynaPro with the microcuvette device added as post-translational >modification. It's so old that the serial number is probably negative. I >don't know if a more recent instrument has the same cuvette holder geometry. > >I hope that partial information helps, > Dan > > > > >Gloria Borgstahl wrote: >> Does any one know of a source of these cuvettes? >> Protein Solution doesn't exist anymore >> and Wyatt no longer has these.
