[Histonet] Histonet Digest, Vol 140, Issue 12

Mon Jul 13 06:41:55 CDT 2015

I'm studying for the ASCP Safety Qualification.  Looking for advice from an experienced source.  Thanks! 

________________________________________
From: histonet-request at lists.utsouthwestern.edu [histonet-request at lists.utsouthwestern.edu]
Sent: Saturday, July 11, 2015 12:00 PM
To: histonet at lists.utsouthwestern.edu
Subject: Histonet Digest, Vol 140, Issue 12

Send Histonet mailing list submissions to
        histonet at lists.utsouthwestern.edu

To subscribe or unsubscribe via the World Wide Web, visit
        http://lists.utsouthwestern.edu/mailman/listinfo/histonet
or, via email, send a message with subject or body 'help' to
        histonet-request at lists.utsouthwestern.edu

You can reach the person managing the list at
        histonet-owner at lists.utsouthwestern.edu

When replying, please edit your Subject line so it is more specific
than "Re: Contents of Histonet digest..."

Today's Topics:

   1. Re: Coverslipping mystery (Caroline Miller)

----------------------------------------------------------------------

Message: 1
Date: Sat, 11 Jul 2015 07:17:30 -0700
From: Caroline Miller <mills at 3scan.com>
To: John Kiernan <jkiernan at uwo.ca>
Cc: Adam Boanas <a.boanas at epistem.co.uk>,
        "histonet at lists.utsouthwestern.edu"
        <histonet at lists.utsouthwestern.edu>
Subject: Re: [Histonet] Coverslipping mystery
Message-ID: <6C960C7A-BC93-463A-A408-2A94B7918650 at 3scan.com>
Content-Type: text/plain;       charset=us-ascii

I really like DPX, although funnily enough we used cytoseal in my lab in London but always called it the DPX! I think I remember by boss telling me about the bad DPX time.....

When I moved to the USA the lab I started in had a bottle of DPX and i loved it! I always decant some of the DPX into a 100ml glass bottle, put in a plastic squeeze pipette and then screw a lid on it to stop it drying out (with the pipette still inside) when not in use. Surprisingly the pipette doesn't melt! Which is good because I am a recycle freak and i couldn't stand using a new one every time I mounted something!

Yours,
mills

Caroline Miller (mills)
Director of Histology
3Scan, Inc
415-2187297

> On Jul 10, 2015, at 10:55 PM, John Kiernan <jkiernan at uwo.ca> wrote:
>
> DPX is a polystyrene mounting medium. In principle you can make your own from published recipes. In practice, everyone buys commercial resinous mounting media.
>
> In the 1990s we had trouble similar to what you describe. The commercial DPX was cloudy, and not because of alcohol in our xylene. The Canadian supplier acknowledged the bad DPX and urged us to buy Entellan instead. Entellan is a poly(methacrylate) plastic and is an excellent but expensive mounting medium. Another poly(methacrylate) mountant called CytoSeal was less expensive and also came in a squeeze-easy plastic bottle for delivery onto the slide or coverslip. It's now my routine resious mountant.
>
> Good DPX returned to the market in the 2000s, but in old-fashioned bottles and not easy to apply to slides or coverslips.
>
> John Kiernan
> = = =
>> On 09/07/15, Adam Boanas  <a.boanas at epistem.co.uk> wrote:
>> Hello,
>>
>> We are having a problem that is developing into a big issue in our lab and I was wondering if anybody could shed any light on it. Our CV5000 coverslipper has recently started introducing microscopic air bubbles onto the slides during coverslipping. We have been told by our engineer that it is a consequence of the age and use of the motor and that sourcing another for an instrument that old (15yrs) will be v difficult. As such, we have been forced to manually coverslip using DPX and a pipette - manually applying the coverslips to the slide, thus mirroring the action of the coverslipper. This is fine at first and for the next few days the slides look great and very clean. However, after about day 4 -5 days post coverslipping, the slides develop an odd appearance down the microscope which looks like very fine `parched earth / crazy paving` all over the slide - including the section. The excess mountant around the edge of the coverslip also has a very faint, cloudy appearance
 wh!
>>  en this occurs. This of course renders the slide un-useable. Does anyone have a clue what this might be down to / how we can stop it?
>> We are struggling for ideas with this one! - this occurs with fresh DPX also.
>>
>> Many thanks
>> Adam
>>
>> Adam Boanas
>> Senior Research Associate
>> Epistem Ltd
>> 48 Grafton Street
>> Manchester, M13 9XX
>>
>> _______________________________________________
>> Histonet mailing list
>> Histonet at lists.utsouthwestern.edu
>> http://lists.utsouthwestern.edu/mailman/listinfo/histonet
> _______________________________________________
> Histonet mailing list
> Histonet at lists.utsouthwestern.edu
> http://lists.utsouthwestern.edu/mailman/listinfo/histonet

------------------------------

Subject: Digest Footer

_______________________________________________
Histonet mailing list
Histonet at lists.utsouthwestern.edu
http://lists.utsouthwestern.edu/mailman/listinfo/histonet

------------------------------

End of Histonet Digest, Vol 140, Issue 12
*****************************************

-------------------------------------------------------------------------
This message was secured by ZixCorp(R).