We report a novel technique to generate steady capillary microjets wit
h diameters in the range of micrometric size. The microjet is driven b
y the aerodynamic suction of a highly accelerated coflowing gas stream
. After undergoing capillary instability and breakup, these jets event
ually yield remarkably monodispersed size aerosols in the micrometric
range. Aerosol generators of this kind may have a wide range of applic
ations in science and technology. (C) 1998 Elsevier Science Ltd. All r
ights reserved.