Abstract: A reinforced microplate has reinforcing members that enhance stiffness and minimize deformation of the microplate, especially thermally-induced deformation. The reinforcing members include ribs or struts that are integrally formed on a bottom surface of the microplate. In cooperation with the reinforcing members, the microplate frame can include one or more slots that act to disrupt the effects of thermal expansion and limit thermally-induced strain.

Abstract: A reinforced microplate has reinforcing members that enhance stiffness and minimize deformation of the microplate, especially thermally-induced deformation. The reinforcing members include dots, ribs or struts that are integrally formed on a bottom surface of the microplate. In cooperation with the reinforcing members, the microplate frame can include one or more slots that act to disrupt the effects of thermal expansion and limit thermally-induced strain. To provide enhanced sealing utility and reduce sample evaporation, each well may include a raised rim with angled transition surfaces leading to a top surface, preferably in combination with at least one elevated sealing feature extending from an upper deck surface, and being arranged between corners of the deck and the plurality of wells.