An electrospraying apparatus and/or method is used to coat particles. For
example, a flow including at least one liquid suspension may be provided
through at least one opening at a spray dispenser end. The flow includes
at least particles and a coating material. A spray of microdroplets
suspending at least the particles is established forward of the spray
dispenser end by creating a nonuniform electrical field between the spray
dispenser end and an electrode electrically isolated therefrom. The
particles are coated with at least a portion of the coating material as
the microdroplet evaporates. For example, the suspension may include
biological material particles.