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.

Date of Patent:
Aug. 30, 2005

Filed:

Aug. 27, 1996
Applicants:

Ronald R. Price, Stevenville, MD (US);

Joel M. Schnur, Burke, VA (US);

Banahalli R. Ratna, Springfield, VA (US);

Mark S. Spector, Alexandria, VA (US);

Inventors:

Ronald R. Price, Stevenville, MD (US);

Joel M. Schnur, Burke, VA (US);

Banahalli R. Ratna, Springfield, VA (US);

Mark S. Spector, Alexandria, VA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J013/00 ;
U.S. Cl.
CPC ...
Abstract

The wall thickness of lipid microtubules are controlled by selecting a methanol/water system and determining the required amount of a lipid to form the desired wall thickness. The lipid is dissolved in a small portion of the heated methanol and that clear solution is added to the remaining amount of the heated methanol/water system. By slowly cooling the solution, microtubules are formed which have the desired wall thickness. Preferred microtubules have a wall thickness of just 2 bilayers and they are robust so they can be further coated. They can be made with a large aspect ratio and with lengths of greater than 250 microns. The process permits production of microtubules in very high yields.


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