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Re: [Killietalk] Preparing slides
*"Lorraine" <overall077 at lycos_com> wrote:*
As part of the educational area of the fish room I am setting up a science
section. I would like to have some microscope slides prepared of eggs in
various stages of development and live foods. I have the slides with the
little well and was wondering if it were possible to make permanent slides
that will not degrade. I was wondering if you could put epoxy on the slide
to cover the egg, live food, would this keep the item without degredation
(don’t laugh I am a DIY’er).
If not what would?
In sunny Colorado.
I would fill the well with a good UV-curing clear monomer, Cover with a
thin cover glass, and then zap it with a strong dose of UV. It takes
expensive equipment that makes DIY a bit of a problem. You might need to
sterilize the specimens in formaldehyde, first, to assure no decay
within the egg. IDK.
Second alternative is to pot it in clear silicone circuit-board potting
compound. Much like the silicone used for aquaria, there are some clear,
more liquid versions available. They are usually moisture-curing, so
leave off the cover glass for a few minutes, but slide it on before the
material begins to set up.
Very nice is a clear acrylic monomer, if you can get any. Not usually
available in stores, it is used to make paperweights, etc. with objects
"floating" inside them.
There are two-part clear polyester resins for cementing lenses. Check
Edmund Scientific o/e.[Epoxy is rarely if ever clear after curing.] Your
local plastics supplier will have poly resins for laying up fiberglass
boats that should work equally well. You need that cover glass, for they
never cure if in contact with air.
Wright Huntley - Rt. 001 Box K36, Bishop CA 93514 - whuntley at verizon_net
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