Abstract: A surface-treated fluidic channel is provided comprising a dispensing device that comprises a microarray of microchannels. The fluidic channel is made from metal and comprises a surface and a hydrophobic coating layer comprising a self-assembled monolayer of an organophosphorus acid adhered to the surface. A mesh nebulizer comprising a reservoir and a dispensing device comprising a microarray of microchannels is also provided. A metal surface layer is applied to the interior and exterior surfaces of the reservoir and dispensing device, and a hydrophobic coating layer comprising an organo-silicon or a self-assembled monolayer of an organophosphorus acid is adhered to the metal surface layer, usually on the exterior surfaces of the reservoir and dispensing device. A hydrophilic polymeric coating layer may be chemically bonded to and propagated from terminal functional groups on the hydrophobic coating layer on the interior surfaces of the reservoir and dispensing device.

Abstract: A socket for a refrigerator lamp has a body with a chamber to receive the base of the lamp. The chamber side wall is threaded to engage the lamp base threads. An inclined ramp between the threads and the bottom of the chamber engages the lamp base to provide a positive stop when the base is completely in the socket. A first terminal in the socket has a contact portion radially inside the ramp to engage the lamp base just before the base engages the ramp. A second terminal in the socket has a resilient arm to engage a contact in the distal end of the base just before the base engages the ramp. A tab in the bottom of the chamber closely underlies the resilient finger to prevent permanent deformation of the finger. An enclosure wall extends out from the open end of the chamber and closely surrounds a lamp inserted in the socket to assure that the user will not touch the lamp base while either electrical terminal engages the base.