Browse Prior Art Database

Transport System for Ultra Small Objects

IP.com Disclosure Number: IPCOM000014136D
Original Publication Date: 2002-May-02
Included in the Prior Art Database: 2003-Jun-19

Publishing Venue

IBM

Abstract

Disclosed is a device for transporting nanoscale objects. The device consists of a thin solid sheet of molecules floating on a thin liquid film on a solid substrate. When a small object is placed on the solid sheet, which functions as a raft, the object can be transported to a new location by flowing air over it. To be able to transport nanoscale objects, the thickness of the raft and liquid film should be only a few nanometers. This can be achieved by immersing a silicon wafer in a solution of squalane dissolved in chloroform in a concentration of 1 gram/liter, then withdrawing the wafer at a speed of 3.5 mm/s. This procedure generates a liquid film of squalane, 2.6 nm thick, covered with little islands of solid squalane, 0.8 nm thick. These little islands of solid squalane can serve as molecular rafts for transporting small objects. Other types of materials are also possible for fabricating the solid rafts: Some of the methyl side groups of the squalane molecules could be replaced by