Microplates have no bottom surface for well. For research application, PDMS sheet (Polydimethylsiloxan)*1, COP film (Cyclic Olefin Polymer) and other materials can be bonded together for your experiment.
Features of bottomless microplate
Microtiter plate having no bottom surface for well
Depending on research applications, any material can be bonded to the bottom side.
There are two types of adhesive tapes: acrylic or silicone.