The flow-through chambers described are easily assembled in the laboratory with no need for sophisticated or expensive equipment. They allow for treating micro-explants or single non-adhesive cells with different solutes for defined times by easy and quick changes of the medium in the chambers. The specimen can be fixed, immunostained and observed microscopically within the chamber. During these procedures the cells are not exposed to undue mechanical stress and fragile intercellular structures are well preserved.
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