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:
Feb. 07, 2012
Filed:
Feb. 04, 2008
David Zhang, Overland Park, KS (US);
Andrew J. Turberfield, Oxford, GB;
Erik Winfree, Altadena, CA (US);
David Zhang, Overland Park, KS (US);
Andrew J. Turberfield, Oxford, GB;
Erik Winfree, Altadena, CA (US);
California Institute of Technology, Pasadena, CA (US);
Abstract
A catalytic system and method of catalyzing reactions that uses a novel toehold exchange mechanism that allows a specified input to catalyze the release of a specified output, which in turn can serve as a catalyst for other reactions is provided. This toehold exchange catalyst system, which can be driven forward by the configurational entropy of the released molecule, provides an amplifying circuit element that is simple, fast, modular, composable, and robust. Using this toehold exchange catalyst system it has been possible to construct and characterize several circuits that amplify nucleic acid signals, including a feed-forward cascade with quadratic kinetics and a positive feedback circuit with exponential growth kinetics.