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The The BSK4 Brain Slice Keeper has
been designed to pre-incubate a large number brain slices prior to
transfer into recording chambers or for the incubation of preparations
in experimental test media. Based on the BSK1, it consists of four
closely fitting acrylic rings, located in a circular manifold, between
which is wedged a removable sheet of nylon netting. In operation,
the four rings located on a manifold with netting are totally immersed
in an ACSF-filled purpose designed holding vessel into which a 95% O2,
5% CO2 gas mixture is supplied through a ceramic bubbler. The ceramic
bubbler is located in a central tube chamber connected to the upper
manifold. The bubbles rising from the base saturate the ACSF and
provide constant circulation of medium to the slices which rest on the
nylon nets. Bubbles are restricted to rising in the central chamber and
are prevented from being trapped under the slices, thereby ensuring a
continuous circulation of medium. Slices remain viable for many hours
in these conditions. The BSK4 together with the holding vessel can be
easily placed into a water bath for regulating the incubating
temperature as desired. A conical lid profile ensures that drops do not
fall directly on to the slices. When in place, the fluid level is
maintained at least 3mm above the upper ring. This ensures circulation
of fluid over the top and downwards towards the slices. The typical
fluid volume with BSK4 is 500ml but can be reduced by adding glass
spheres into the base.
Click here for a flyer in PDF format.
Schematic diagram
Copyright© 1999 Scientific Systems Design, Inc.
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