[Nhcoll-l] comparative quality cryogenic vials
Meredith Mahoney
mahoneymer at gmail.com
Thu Aug 20 12:15:30 EDT 2020
There is one short report in the SPNHC newsletter March 2012 (vol 26,
no.1), by Bryan Stuart and Gabriela Hogue, not cited on the wiki page. The
authors note issues with internally threaded vials with silicone O-rings
and after comparing a couple different tubes recommend externally-threaded,
non-O-ring-having tubes.There's more details in the report on specific
brands, but this is the only publication I know of.
On Thu, Aug 20, 2020 at 9:55 AM Bentley, Andrew Charles <abentley at ku.edu>
wrote:
> Greg
>
>
>
> We took all of those things into account when selecting our long-term
> storage tubes. The tubes that we selected are cryo-safe (vapor NOT
> liquid), externally threaded (prevents thread coming into contact with
> large chunks of tissue and also prevents possible contamination), and are
> the right size to fit into an 81 tube box (they fit well and do not rattle
> in the box which some of the thinner tubes do. We are also happy with
> losing extra capacity for safety of tissues).
>
>
>
> In terms of evaporation, we have had no issues with evaporation in the
> field or returning from the field but we also routinely decant off all
> liquid before placing samples in the LN2 dewars for two reasons – to
> prevent damage to DNA from ethanol over time (it will be arrested somewhat
> due to low temp but still happens) and to ensure access to the tissue
> sample in the tube (95% ethanol and RNALater both freeze at LN2
> temperatures and so you have to thaw the liquid before being able to access
> the tissue which may degrade DNA quality over time with multiple
> freeze:thaw cycles).
>
>
>
> There is some info on tissue collections on the SPNHC wiki:
> https://spnhc.biowikifarm.net/wiki/Tissue_Sample_Collection but I suspect
> that the vial selection section needs updating
>
>
>
> Andy
>
>
>
> A : A : A :
>
> }<(((_°>.,.,.,.}<(((_°>.,.,.,.}<)))_°>
>
> V V V
>
> Andy Bentley
>
> Ichthyology Collection Manager
>
> University of Kansas
>
> Biodiversity Institute
>
> Dyche Hall
>
> 1345 Jayhawk Boulevard
>
> Lawrence, KS, 66045-7561
>
> USA
>
>
>
> Tel: (785) 864-3863
>
> Fax: (785) 864-5335
>
> Email: abentley at ku.edu
>
> http://ichthyology.biodiversity.ku.edu
>
>
>
> A : A : A :
>
> }<(((_°>.,.,.,.}<(((_°>.,.,.,.}<)))_°>
>
> V V V
>
>
>
>
>
> *From: *Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> on behalf of Greg
> Watkins-Colwell <gregory.watkins-colwell at yale.edu>
> *Date: *Thursday, August 20, 2020 at 8:22 AM
> *To: *"nhcoll-l at mailman.yale.edu" <nhcoll-l at mailman.yale.edu>
> *Subject: *Re: [Nhcoll-l] comparative quality cryogenic vials
>
>
>
> Has anybody ever written a paper on this? It would sure be helpful. Each
> of the tubes that Andy and Dirk listed are the opposite of what I was told
> to use when we migrated to LN2 (internal thread with the silicon
> O-ring..).
>
>
>
> There’s also an issue I’ve found with some tubes not fitting properly in
> the boxes we use in the LN2 tanks. Some tubes are too narrow and rattle
> around. Others are too tall and the lid won’t go on properly (nor will the
> box properly fit in the rack as a result). So there are clearly a lot of
> factors. When we migrated to LN2 we had a lot of things in external
> thread, black o-ring tubes and when asked if those tubes are okay to use in
> LN2, the vendor literally shrugged and said… very slowly… “prob-ab-ly?”… so
> we transferred everything. Very time-consuming!
>
>
>
> A nice paper detailing the pros and cons of each with a solid
> recommendation would be great.
>
>
>
> On the issue of evaporation, we routinely decant off the liquid anyway
> before putting the tubes into LN2. Also, many of our samples are frozen
> raw (especially in ORN and MAM). How does tube morphology impact tissue
> samples in those cases? Anybody have any data on that?
>
>
>
>
>
>
>
>
>
> Greg
>
>
>
>
>
>
>
>
>
> ****************
>
> Gregory J. Watkins-Colwell
>
> Sr. Collection Manager, Herpetology and Ichthyology
>
> Division of Vertebrate Zoology
>
> Yale Peabody Museum of Natural History
>
> Main Office: 203-432-3791; West Campus: 203-737-7568; Fax 203-432-9277
>
>
>
> Package shipping address:
>
> Greg Watkins-Colwell
>
> Division of Vertebrate Zoology
>
> Yale Peabody Museum of Natural History
> 170–210 Whitney Avenue
> New Haven, CT 06511 USA
>
> 203-432-3791
>
> ******************
>
>
>
> *From:* Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> * On Behalf Of *Bentley,
> Andrew Charles
> *Sent:* Wednesday, August 19, 2020 5:20 PM
> *To:* nhcoll-l at mailman.yale.edu
> *Subject:* Re: [Nhcoll-l] comparative quality cryogenic vials
>
>
>
> John
>
>
>
> We have been using these Nalgene tubes in our collection and for
> collecting in all environments for over 15 years and have had no issues
> with storage in 95% ethanol, RNALater or liquid nitrogen environments:
> https://www.fishersci.com/shop/products/nalgene-general-long-term-storage-cryogenic-tubes/033377d
> <https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.fishersci.com%2Fshop%2Fproducts%2Fnalgene-general-long-term-storage-cryogenic-tubes%2F033377d&data=02%7C01%7Cabentley%40ku.edu%7Cbcf5103bcb2d46bdbabd08d8450c153f%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C1%7C637335265528151199&sdata=6IApZTN4%2F5bc8AqctU2HkCCBe0RehbCzubpjNrkRBo8%3D&reserved=0>
>
>
>
> I agree with Dirk that whatever make you go with, externally threaded
> tubes with no O-ring gasket are the way to go.
>
>
>
> Andy
>
>
>
> A : A : A :
>
> }<(((_°>.,.,.,.}<(((_°>.,.,.,.}<)))_°>
>
> V V V
>
> Andy Bentley
>
> Ichthyology Collection Manager
>
> University of Kansas
>
> Biodiversity Institute
>
> Dyche Hall
>
> 1345 Jayhawk Boulevard
>
> Lawrence, KS, 66045-7561
>
> USA
>
>
>
> Tel: (785) 864-3863
>
> Fax: (785) 864-5335
>
> Email: abentley at ku.edu
>
> http://ichthyology.biodiversity.ku.edu
> <https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fichthyology.biodiversity.ku.edu%2F&data=02%7C01%7Cabentley%40ku.edu%7Cbcf5103bcb2d46bdbabd08d8450c153f%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C0%7C637335265528161195&sdata=D8JsyzBQvwBaUpoOqKvTbaAaY8OrtPZ3EU2bsnEmOds%3D&reserved=0>
>
>
>
> A : A : A :
>
> }<(((_°>.,.,.,.}<(((_°>.,.,.,.}<)))_°>
>
> V V V
>
>
>
>
>
> *From: *Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> on behalf of Dirk
> Neumann <neumann at snsb.de>
> *Reply-To: *"neumann at snsb.de" <neumann at snsb.de>
> *Date: *Wednesday, August 19, 2020 at 4:05 PM
> *To: *"nhcoll-l at mailman.yale.edu" <nhcoll-l at mailman.yale.edu>
> *Subject: *Re: [Nhcoll-l] comparative quality cryogenic vials
>
>
>
> Dear John,
>
>
>
> I would prefer NUNC Store-it tubes (article 264300;
> https://www.thermofisher.com/order/catalog/product/264262#/264262
> <https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.thermofisher.com%2Forder%2Fcatalog%2Fproduct%2F264262%23%2F264262&data=02%7C01%7Cabentley%40ku.edu%7Cbcf5103bcb2d46bdbabd08d8450c153f%7C3c176536afe643f5b96636feabbe3c1a%7C0%7C1%7C637335265528161195&sdata=hy7k71Bb7L9oAvewE%2FOdfZd8zb%2BP%2FxM8%2BnOvDpiHHPk%3D&reserved=0>
> )
>
>
>
> We tested them against Sarsted and other brands in a warm water bath >
> 50°C and they were among the tightest ones; also, they DON'T have an
> silicone O-ring (which will fail after some time); we had to replace poor
> quality tubes twice so far and besides necessary replacement costs and time
> needed to transfer tissues the huge evaporation loss (> 50% in some tubes)
> surely affected the integrity of the tissues / DNA.
>
>
>
> The NUNC-tubes have a flange and really need to be screwed down tight
> (which is a bit annoying), but we have them on storage since 2004, use them
> in the tropic in the field and their performance is excellent. Bit more
> expensive, but this slightly higher investment pays off in the long run.
>
>
>
> Hope this helps,
>
> with best wishes
>
> Dirk
>
>
>
>
>
> Am 17.08.2020 um 23:42 schrieb John Edwin Lattke Bravo:
>
> Hello,
>
>
>
> Does anybody have any thoughts or experience to share regarding the
> comparative merits of 2ml cryogenic vials by Corning, Sarstedt and Granier
> for long term storage of insects in ethanol? Is the quality amongst the
> three similar? Positive experiences? Negative one? Just needing some user
> experience to help decide what might deliever the best bang for the buck
> (or real, in my case).
>
>
>
> Obrigado,
>
>
>
> John Lattke
>
>
>
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> --
>
>
> Dirk Neumann
>
> Tel: 089 / 8107-111
> Fax: 089 / 8107-300
> neumann(a)snsb.de
>
> Postanschrift:
>
> Staatliche Naturwissenschaftliche Sammlungen Bayerns
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>
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> ---------
>
> Dirk Neumann
>
> Tel: +49-89-8107-111
> Fax: +49-89-8107-300
> neumann(a)snsb.de
>
> postal address:
>
> Bavarian Natural History Collections
> The Bavarian State Collection of Zoology
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>
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