Metallic nanoparticle composition dispenser and method of dispensing metallic nanoparticle composition

A metallic nanoparticle composition dispenser, comprising:

• a piston-cylinder assembly comprising a cylinder, a pneumatic port at first end of the cylinder, an outlet port at a second end of the cylinder opposite the first end, and a piston movable in the cylinder between the first end and the second end;
• and
• a capillary tube comprising a tube inlet and a tube outlet, the tube inlet being coupled to the outlet port;
• wherein the piston is capable to extrude a metallic nanoparticle composition through the capillary tube responsive to a pressure applied to the piston by a regulated pneumatic system coupled to the pneumatic port at the first end of the cylinder.

A piston-cylinder assembly for a metallic nanoparticle composition dispenser, comprising:

• a cylinder, a pneumatic port at a first end of the cylinder, an outlet port at a second end of the cylinder opposite the first end, and a piston movable in the cylinder between the first end and the second end;
• and
• a metallic nanoparticle composition contained in the cylinder;
• wherein the piston is capable to extrude the metallic nanoparticle composition through a capillary tube coupled to the outlet port responsive to a pressure applied to the piston by a regulated pneumatic system coupled to the pneumatic port at the first end of the cylinder.

A method of dispensing a metallic nanoparticle composition on a substrate, comprising:

• configuring a piston-cylinder assembly comprising a cylinder, a pneumatic port at first end of the cylinder, an outlet port at a second end of the cylinder opposite the first end, and a piston movable in the cylinder between the first end and the second end;
• configuring a capillary tube comprising a tube inlet and a tube outlet;
• coupling the tube inlet to the outlet port;
• injecting the metallic nanoparticle composition into the cylinder;
• positioning the piston in the cylinder;
• coupling the pneumatic port to a regulated pneumatic system;
• applying a pressure to the piston by the regulated pneumatic system;
• extruding, by the piston, the metallic nanoparticle composition through the capillary tube responsive to the pressure applied to the piston.