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:
Nov. 11, 2014
Filed:
Jan. 14, 2009
Robert R. Birge, Coventry, CT (US);
Rekha Rangarajan, Fort Worth, TX (US);
Kristina Nicole Mccleary, Cheshire, CT (US);
Robert R. Birge, Coventry, CT (US);
Rekha Rangarajan, Fort Worth, TX (US);
Kristina Nicole McCleary, Cheshire, CT (US);
University of Connecticut, Farmington, CT (US);
Abstract
Bacteriorhodopsin protein variants and methods using the bacteriorhodopsin variants for performance in holographic and three-dimensional (3D) memory storage devices are described. The amino acid and chemical modifications of bacteriorhodopsin provided herein achieve greatly enhanced protein performance. The memory storage devices write, read and erase data proficiently. The bacteriorhodopsin protein variants are useful in optical memory storage and associative processor systems. Irradiation of the light-sensitive protein with light of known wavelength causes the protein to switch between different states. The variants enter the branched photocycle via a single or a two photon process and form the permanent 'Q' state more efficiently than the wild-type bacteriorhodopsin protein. This branching photocycle of the variants is exploited in the fabrication of 3D memory storage devices.