Jayant Kumar

US Patent:

6569651, May 27, 2003

Filed:

Jun 16, 1999

Appl. No.:

09/334105

Inventors:

Lynne A. Samuelson - Marlborough MA
Sukant K. Tripathy - late of Acton MA
Ferdinando Bruno - Andover MA
Ramaswamy Nagarajan - Lowell MA
Jayant Kumar - Westford MA
Wei Liu - Lowell MA

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC
University Massachusetts Lowell - Lowell MA

International Classification:

C12P 1300

US Classification:

435128, 435 41, 435132, 435155, 435174, 435180, 435817, 424400

Abstract:

The micelle contains multiple units, each of which contains a hydrophobic part and a hydrophilic part. A preferred unit is dodecyl benzene sulfonic acid. Borate-containing electrolytes include trifluoroborate, trimethylborate and hydrobis(pyridine)boron. Enzymes include peroxidases such as horseradish peroxidase or lignin peroxidase, and laccase. Monomers include unsubstituted and substituted anilines and unsubstituted and substituted phenols. A method is provided for enzymatic polymerization which includes (1) obtaining a reaction mixture including a monomer, a template, and an enzyme; and (2) incubating the reaction mixture for a time and under conditions sufficient for the monomer to align along the template and polymerize to form a polymer-template complex. The template can be a micelle, a borate-containing electrolyte, or lignin sulfonate. The polymer-template complex may be conductive, and possesses exceptional electrical and optical stability, water solubility, and processibility, and can be used in applications such as light-weight energy storage devices (e. g.

US Patent:

6962963, Nov 8, 2005

Filed:

Oct 17, 2003

Appl. No.:

10/688582

Inventors:

Rajesh Kumar - Lowell MA, US
Arthur C. Watterson - Nashua NH, US
Virinder Singh Parmar - Lowell MA, US
Jayant Kumar - Westford MA, US
Lynne Ann Samuelson - Marlboro MA, US

Assignee:

University of Massachusetts - Boston MA

International Classification:

C08G077/08
C08G077/26
C08G077/445

US Classification:

528 26, 528 28, 528 21

Abstract:

The invention relates to new methods of enzymatic synthesis of polymers such as polyorganosilicones and polyesters, and new polymers made by these methods.

US Patent:

7001996, Feb 21, 2006

Filed:

Dec 19, 2002

Appl. No.:

10/324736

Inventors:

Lynne A. Samuelson - Marlborough MA, US
Ferdinando Bruno - Andover MA, US
Susan Tripathy, legal representative - Acton MA, US
Ramaswamy Nagarajan - Lowell MA, US
Jayant Kumar - Westford MA, US
Wei Liu - Lowell MA, US

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

C12Q 1/68
C07H 21/02

US Classification:

536 231, 435 4

Abstract:

A conductive polymer is formed enzymatically in the presence of a polynucleotide template. The method includes combining at least one redox monomer with a polynucleotide template and a redox enzyme, such as horseradish peroxidase, to form a reaction mixture. The monomer aligns along the template before or during the polymerization. Therefore, the polynucleotide template thereby affects the molecular weight and conformation of the conductive polymer. When the conductive polymer is complexed to a polynucleotide duplex, the conformation of the polynucleotide duplex can be modulated by changing the oxidation state of the conductive polymer.

US Patent:

7022420, Apr 4, 2006

Filed:

Feb 9, 2004

Appl. No.:

10/775579

Inventors:

Ferdinando Bruno - Andover MA, US
Lynne A. Samuelson - Marlborough MA, US
Ramaswamy Nagarajan - Dracut MA, US
Jayant Kumar - Westford MA, US
Michael Sennett - Sudbury MA, US

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

B32B 15/00

US Classification:

428681, 428682, 428668, 436 66, 528424, 528423, 528422

Abstract:

An assembled hematin is formed by depositing hematin on an electrically charged substrate in one or more layers alternating with one or more layers of polyelectrolyte, preferably a cationic polymer. In a method for polymerizing an aromatic monomer, the assembled hematin is contacted with the monomer and a template, preferably an anionic polymer. In a method for polymerizing aniline, the aniline, sulfonated multi walled carbon nano tubes, PEG hematin and a reaction initiator are dispersed in water.

US Patent:

7056675, Jun 6, 2006

Filed:

Oct 5, 2004

Appl. No.:

10/958907

Inventors:

Lynne A. Samuelson - Marlborough MA, US
Ferdinando Bruno - Andover MA, US
Susan Tripathy, legal representative - Acton MA, US
Ramaswamy Nagarajan - Lowell MA, US
Jayant Kumar - Westford MA, US
Wei Liu - Lowell MA, US

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

C12Q 1/68
C12P 19/34
C12M 3/00
C07H 21/04

US Classification:

435 6, 435 911, 4352872, 436 94, 536 231, 977704

Abstract:

A conductive polymer is formed enzymatically in the presence of a polynucleotide template. The method includes combining at least one redox monomer with a polynucleotide template and a redox enzyme, such as horseradish peroxidase, to form a reaction mixture. The monomer aligns along the template before or during the polymerization. Therefore, the polynucleotide template thereby affects the molecular weight and conformation of the conductive polymer. When the conductive polymer is complexed to a polynucleotide duplex, the conformation of the polynucleotide duplex can be modulated by changing the oxidation state of the conductive polymer.

US Patent:

7186791, Mar 6, 2007

Filed:

May 2, 2005

Appl. No.:

11/120031

Inventors:

Ferdinando Bruno - Andover MA, US
Lynne A. Samuelson - Marlborough MA, US
Ramaswamy Nagarajan - Dracut MA, US
Jayant Kumar - Westford MA, US

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

C08G 73/66

US Classification:

528424, 528423, 528422, 528486, 528489, 528561

Abstract:

A method for polymerizing electronic and photonic polymers, wherein an aromatic monomer is combined with a hematin catalyst derivatized with at least one non-proteinaceous amphipathic group, and a peroxide initiator, and employing a template, wherein the aromatic monomer aligns along the template and polymerizes to form a complex comprising the polymerized monomer and the template.

US Patent:

7186792, Mar 6, 2007

Filed:

May 2, 2005

Appl. No.:

11/120032

Inventors:

Ferdinando Bruno - Andover MA, US
Lynne A. Samuelson - Marlborough MA, US
Ramaswamy Nagarajan - Dracut MA, US
Jayant Kumar - Westford MA, US

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

C08G 73/06

US Classification:

528424, 528423, 528422, 436566, 526217, 536 231, 540145

Abstract:

A method for polymerizing electronic and photonic polymers, wherein an aromatic monomer is combined with a hematin catalyst derivatized with at least one non-proteinaceous amphipathic group, and a peroxide initiator, and employing a template, wherein the aromatic monomer aligns along the template and polymerizes to form a complex comprising the polymerized monomer and the template.

US Patent:

7223432, May 29, 2007

Filed:

Apr 4, 2003

Appl. No.:

10/408679

Inventors:

Ashok L. Cholli - Chelmsford MA, US
Vijayendra Kumar - Lowell MA, US
Jayant Kumar - Westford MA, US
Virinder Singh Parmar - Lowell MA, US
Lynne Ann Samuelson - Marlborough MA, US
Ferdinando F. Bruno - Andover MA, US

Assignee:

University of Massachusettes Lowell - Lowell MA
United States of America, as represented by the Secretary of the Army - Washington DC

International Classification:

A23D 7/00

US Classification:

426541, 426544, 426546, 252399

Abstract:

Antioxidant polymers of the present invention comprise repeat units that include one or both of Structural Formulas (I) and (II):The invention also includes methods of using and preparing these polymers.