I run an academic lab on a very tight budget. A paper towel used to dry washed
hands is used again. Outdated dye solutions are adsorbed onto a small pile of
old paper towels to save on waste disposal costs. (A quarter-pound of solid
waste costs less to dispose of than 2 liters of aqueous liquid waste.)
Disposable pipettes are washed and reused until the numbers wear off. I make
up Vector's ImmPact SG 1.7 ml a time, store it in the fridge, and use it all
week. I don't save on microtome blades. Dull blades leave holes in 4 micron
sections. Sections cut with a dull blade have the annoying habit of exploding
on the water bath. Dull blades tease out collagen fibers and drape them over
the cells I'm trying to study. When a blade is dull it goes into the sharps
box.
-Allen A. Smith, Ph.D.
Barry University School of Podiatric Medicine
Miami Shores, FL
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