Patent ID: 6913931

Claim:
A method of contacting a reactant with an analyte, the method comprising: providing a microarray device comprising a reactant surface, wherein the reactant surface comprises a plurality of reactant sites dispersed over the reactant surface, wherein the plurality of reactant sites are distinct from each other, and wherein the reactant surface comprises a first edge and a second edge located opposite each other; depositing a quantity of a liquid and an analyte on the reactant surface; tilting the reactant surface in a first direction about an axis of rotation, wherein a portion of the liquid moves towards the first edge of the reactant surface under the force of gravity forming a bead above the reactant surface proximate the first edge; and tilting the reactant surface in a second direction about the axis of rotation, wherein a portion of the liquid moves from the first edge towards the second edge under the force of gravity; wherein the liquid remains on the reactant surface during the tilting.