The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 2004
Filed:
Sep. 28, 2001
Charles M. Lieber, Lexington, MA (US);
Jason H. Hafner, Houston, TX (US);
Chin Li Cheung, Cambridge, MA (US);
Philip Kim, New York, NY (US);
President and Fellows of Harvard College, Cambridge, MA (US);
Abstract
A method of producing carbon single wall nanotubes (SWNT) by CVD is disclosed. The SWNTs are grown on a metal-catalyzed support surface, such as a commercially available silicon tips for atomic force microscopes (AFM). The growth characteristics of the SWNTs can be controlled by adjusting the density of the catalyst and the CVD growth conditions. The length of the SWNTs can be adjusted through pulsed electrical etching. Nanotubes of this type can find applications in nanotubes structures with defined patterns and for nano-tweezers. Nano-tweezers may be useful for manipulating matter, such as biological material, on a molecular level.