Keshab Gangopadhyay

US Patent:

7907809, Mar 15, 2011

Filed:

Feb 17, 2009

Appl. No.:

12/372436

Inventors:

Venumadhav Korampally - Columbia MO, US
Shubhra Gangopadhyay - Columbia MO, US
Sangho Bok - Columbia MO, US
Keshab Gangopadhyay - Columbia MO, US

Assignee:

The Curators of the University of Missouri - Columbia MO

International Classification:

G02B 6/02
G02B 6/00

US Classification:

385123, 385145, 977778, 977780

Abstract:

Nanoparticles having a mean particle size of less than about 25 nanometers and a mean pore size of less than 10 nanometers, and a mean surface area of at least 500 m/g; nanoporous films of such nanoparticles; and composites and devices containing such nanoparticles and nanoporous films.

US Patent:

7927437, Apr 19, 2011

Filed:

Oct 28, 2005

Appl. No.:

11/262227

Inventors:

Shubhra Gangopadhyay - Columbia MO, US
Rajesh Shende - Columbia MO, US
Senthil Subramanian - San Diego CA, US
Keshab Gangopadhyay - Columbia MO, US
Shameem Hasan - Columbia MO, US

Assignee:

The Curators of the University of Missouri - Columbia MO

International Classification:

C06B 45/00
C06B 33/00
C06B 33/14
C06B 31/28
D03D 23/00
D03D 43/00

US Classification:

149 37, 149 2, 149 41, 149 46, 1491082, 1491094

Abstract:

A structured, self-assembled nanoenergetic material is disclosed that includes a nanostructure comprising at least one of the group consisting of a fuel and an oxidizer and a plurality of substantially spherical nanoparticles comprising at least the other of the group consisting of a fuel and an oxidizer. The spherical particles are arranged around the exterior surface area of said nanorod. This structured particle assures that the oxidizer and the fuel have a high interfacial surface area between them. Preferably, the nanostructure is at least one of a nanorod, nanowire and a nanowell, and the second shaped nanoparticle is a nanosphere.

US Patent:

8066831, Nov 29, 2011

Filed:

Oct 27, 2006

Appl. No.:

12/083985

Inventors:

Shubhra Gangopadhyay - Columbia MO, US
Steven Apperson - Columbia MO, US
Keshab Gangopadhyay - Columbia MO, US
Andrey Bezmelnitsyn - Columbia MO, US
Rajagopalan Thiruvengadathan - Columbia MO, US
Michael Kraus - Columbia MO, US
Rajesh Shende - Rapid City SD, US
Maruf Hossain - Columbia MO, US
Senthil Subramanian - Poway CA, US
Shantanu Bhattacharya - Columbia MO, US
Yuangang Gao - Boulder CO, US

Assignee:

The Curators of the University of Missouri - Columbia MO

International Classification:

C06B 45/00
C06B 45/18
C06B 33/00
C06B 27/00
D03D 23/00
D03D 43/00

US Classification:

149 3, 149 2, 149 37, 149 87, 1491092, 1491094

Abstract:

A method of generating power uses a nanoenergetic material. The nanoenergetic material comprising thermite is obtained and deposited on a substrate. An igniter is placed on the nanoenergetic material. When power is desired, the nanoenergetic material is ignited. A transducer receives thermal, sonic, magnetic, optic and/or mechanical energy from combustion of the nanoenergetic material and converts it into electrical energy. Preferably, the transducer is a thermoelectric, piezoelectric or magneto device. Preferably, multiple transducers are integrated in one power generators to maximize the power from nanoenergetic thermites.

US Patent:

8173077, May 8, 2012

Filed:

Dec 15, 2006

Appl. No.:

12/097516

Inventors:

Venumadhav Korampally - Columbia MO, US
Shubhra Gangopadhyay - Columbia MO, US
Keshab Gangopadhyay - Columbia MO, US
Sheila A. Grant - Columbia MO, US
Steven B. Kleiboeker - Lee's Summit MO, US
Shantanu Bhattacharya - West Lafayette IN, US
Yuanfang Gao - Columbia MO, US

Assignee:

The Curators of the University of Missouri - Columbia MO

International Classification:

C12M 1/00

US Classification:

422500, 422502, 4352872, 4352891, 4353031, 427240, 4273722, 4273977, 257E21243

Abstract:

A DNA amplification device utilizing a polydimethylsiloxane (PDMS) and silicon substrate coated with spin-on glass (SOG) is provided. This PDMS layer is irreversibly bonded to the SOG layer of the silicon substrate using oxygen plasma. The amplification device is an inexpensive, microfluidic device, which can be utilized as a portable thermo-cycler to perform PCR amplification of DNA in the field.

US Patent:

8293040, Oct 23, 2012

Filed:

Dec 11, 2007

Appl. No.:

12/001306

Inventors:

Shubhra Gangopadhyay - Columbia MO, US
Daniel Tappmeyer - Warrenton MO, US
Rajagopalan Thiruvengadathan - Columbia MO, US
Rajesh Shende - Rapid City SD, US
Steven Apperson - Columbia MO, US
Syed Barizuddin - Columbia MO, US
Keshab Gangopadhyay - Columbia MO, US

Assignee:

The Curators of the University of Missouri - Columbia MO

International Classification:

C06B 45/00
C06B 45/04
C06B 33/00
D03D 23/00
D03D 43/00

US Classification:

149 37, 149 2, 149 17, 1491092, 1491094

Abstract:

The invention provides homogeneous mesoporous metal oxide nanoenergetic composites. A composite of the invention has a regular and uniform nanostructure of metal oxide, which is structured by a surfactant. Metal fuel nanoparticles are homogenously distributed through the regular and uniform nanostructure. The invention further provides methods for making homogeneous metal oxide nanoenergetic composites. A method of the invention forms a metal oxide nanostructure via a sol-gel process with surfactant templating. Metal nanoparticles into the metal oxide nanostructure via wet impregnation.

US Patent:

8303522, Nov 6, 2012

Filed:

Oct 17, 2008

Appl. No.:

12/253706

Inventors:

Steve Apperson - Columbia MO, US
Shubhra Gangopadhyay - Columbia MO, US
Andrey Bezmelnitsyn - Columbia MO, US
Keshab Gangopadhyay - Columbia MO, US

Assignee:

The Curators of the University of Missouri - Columbia MO

International Classification:

A61H 1/00

US Classification:

601 2

Abstract:

A miniature device for generating shock waves using the energy of combustion of a nanoenergetic material and directing the shock waves into biological tissues is described.

US Patent:

8512490, Aug 20, 2013

Filed:

Sep 7, 2012

Appl. No.:

13/607267

Inventors:

Shubhra Gangopadhyay - Columbia MO, US
Daniel Tappmeyer - Warrenton MO, US
Rajagopalan Thiruvengadathan - Columbia MO, US
Rajesh Shende - Rapid City SD, US
Bhushan Mehendale - Land-O-Lakes FL, US
Steve Apperson - Columbia MO, US
Sved Barizuddin - Columbia MO, US
Keshab Gangopadhyay - Columbia MO, US

Assignee:

The Curators of the University of Missouri - Columbia MO

International Classification:

C06B 45/00
C06B 45/04
C06B 33/00
D03D 23/00
D03D 43/00

US Classification:

1491096, 149 2, 149 17, 149 37, 1491082, 1491092

Abstract:

The invention provides methods for making homogeneous metal oxide nanoenergetic composites. A method of the invention forms a metal oxide nanostructure via a sol-gel process with surfactant templating. Metal nanoparticles are introduced into the metal oxide nanostructure via wet impregnation.

US Patent:

8545769, Oct 1, 2013

Filed:

Mar 9, 2012

Appl. No.:

13/416288

Inventors:

Venumadhav Korampally - Columbia MO, US
Shubhra Gangopadhyay - Columbia MO, US
Keshab Gangopadhyay - Columbia MO, US
Sheila A. Grant - Columbia MO, US
Steven B. Kleiboeker - Lee's Summit MO, US
Shantanu Bhattacharya - West Lafayette IN, US
Yuanfang Gao - Columbia MO, US

Assignee:

The Curators of the University of Missouri - Columbia MO

International Classification:

B01L 3/00
B01L 99/00
C12P 19/34

US Classification:

422500, 435 912

Abstract:

A DNA amplification device utilizing a polydimethylsiloxane (PDMS) and silicon substrate coated with spin-on glass (SOG) is provided. This PDMS layer is irreversibly bonded to the SOG layer of the silicon substrate using oxygen plasma. The amplification device is an inexpensive, microfluidic device, which can be utilized as a portable thermo-cycler to perform PCR amplification of DNA in the field.