Patent ID: 6024925
Filing Date: 2000-02-15
Classification: B01J,B01L,C07B,C07F,C07H,C40B,G01N,Y10T

Abstract:
A dispensing apparatus for dispensing nanoliter volumes of fluid in chemical or biological procedures onto the surface of a substrate, comprising:a housing having a plurality of sides and a bottom portion having formed therein a plurality of apertures, wherein the sides and bottom portion of said housing define an interior volume,one or more fluid transmitting vesicles, mounted within said apertures, and having a fluid holding chamber of a size for holding and dispensing nanoliter volumes of fluid, said fluid holding chamber being disposed in fluid communication with said interior volume of said housing, anddispensing means in communication with said interior volume of said housing for selectively dispensing nanoliter volumes of fluid from said nanoliter volume sized fluid transmitting vesicles when fluid holding chambers of said vesicles are fully loaded, whereby said dispensing means dispenses nanoliter volumes of the fluid onto the surface of the substrate when the apparatus is disposed over and in registration with the surface of the substrate.