Polymeric micro-cantilevers for ultra-low volume fluid and living cell deposition

A device for depositing material onto a surface, said device comprising:

• a body portion;
• an elongated beam portion sized smaller than and extending from said body portion, said body portion and said elongated beam portion comprising a thickness of between about 50 microns to about 200 microns, and said elongated beam portion comprising a length greater than about 500 microns;
• said body portion having a reservoir disposed in said body portion;
• said elongated beam portion having a passageway disposed therein, said passageway having an inlet opening in fluid communication with said reservoir and an outlet opening at a distal end of said elongated beam portion, said passageway comprising a width greater than 10 microns to about 100 microns, and a height of about 25 microns to about 100 microns, and said elongated beam portion comprising a bottom wall, a first side wall, a second side wall, and an upper wall defining an enclosed fluidic passageway between said inlet opening and said outlet opening for transporting fluid from said reservoir to said distal end of said elongated beam portion;
• a projecting portion extending below said distal opening at the distal end of said elongated beam portion outwardly from said distal end;
• and
• wherein said body portion and said elongated beam portion comprise a polymeric material.