Lian E Zhang

US Patent:

6942018, Sep 13, 2005

Filed:

Jan 19, 2002

Appl. No.:

10/053859

Inventors:

Kenneth E. Goodson - Belmont CA, US
David E. Huber - Mountain View CA, US
Linan Jiang - Menlo Park CA, US
Thomas W. Kenny - San Carlos CA, US
Jae-Mo Koo - Stanford CA, US
Daniel J. Laser - San Francisco CA, US
James C. Mikkelsen - Los Altos CA, US
Juan G. Santiago - Fremont CA, US
Evelyn Ning-Yi Wang - Stanford CA, US
Shulin Zeng - Sunnyvale CA, US
Lian Zhang - Sunnyvale CA, US

Assignee:

The Board of Trustees of the Leland Stanford Junior University - Stanford CA

International Classification:

F28F007/00

US Classification:

165 804, 16510421, 16510433, 165185, 361700, 361699, 174 151, 174 152, 257714

Abstract:

Apparatus and methods according to the present invention preferably utilize electroosmotic pumps that are capable of generating high pressure and flow without moving mechanical parts and the associated generation of unacceptable electrical and acoustic noise, as well as the associated reduction in reliability. These electroosmotic pumps are preferably fabricated with materials and structures that improve performance, efficiency, and reduce weight and manufacturing cost relative to presently available micropumps. These electroosmotic pumps also preferably allow for recapture of evolved gases and deposited materials, which may provide for long-term closed-loop operation. Apparatus and methods according to the present invention also allow active regulation of the temperature of the device through electrical control of the flow through the pump and can utilize multiple cooling loops to allow independent regulation of the special and temporal characteristics of the device temperature profiles. Novel microchannel structures are also described.

US Patent:

6991024, Jan 31, 2006

Filed:

Jun 27, 2003

Appl. No.:

10/607615

Inventors:

Kenneth E. Goodson - Belmont CA, US
David E. Huber - Mountain View CA, US
Linan Jiang - Menlo Park CA, US
Thomas W. Kenny - San Carlos CA, US
Jae-Mo Koo - Stanford CA, US
Daniel J. Laser - San Francis CA, US
James C. Mikkelsen - Los Altos CA, US
Juan G. Santiago - Fremont CA, US
Evelyn Ning-Yi Wang - Stanford CA, US
Shulin Zeng - Sunnyvale CA, US
Lian Zhang - Sunnyvale CA, US

Assignee:

The Board of Trustees of the Leland Stanford Junior University - Stanford CA

International Classification:

F28F 7/00

US Classification:

165 804, 16510421, 16510433, 361700, 257715, 174 151

Abstract:

Apparatus and methods according to the present invention preferably utilize electroosmotic pumps that are capable of generating high pressure and flow without moving mechanical parts and the associated generation of unacceptable electrical and acoustic noise, as well as the associated reduction in reliability. These electroosmotic pumps are preferably fabricated with materials and structures that improve performance, efficiency, and reduce weight and manufacturing cost relative to presently available micropumps. These electroosmotic pumps also preferably allow for recapture of evolved gases and deposited materials, which may provide for long-term closed-loop operation. Apparatus and methods according to the present invention also allow active regulation of the temperature of the device through electrical control of the flow through the pump and can utilize multiple cooling loops to allow independent regulation of the special and temporal characteristics of the device temperature profiles. Novel microchannel structures are also described.

US Patent:

7131486, Nov 7, 2006

Filed:

Mar 10, 2003

Appl. No.:

10/385086

Inventors:

Kenneth E. Goodson - Belmont CA, US
David E. Huber - Mountain View CA, US
Linan Jiang - Menlo Park CA, US
Thomas W. Kenny - San Carlos CA, US
Jae-Mo Koo - Stanford CA, US
Daniel J. Laser - San Francisco CA, US
James C. Mikkelsen - Los Altos CA, US
Juan G. Santiago - Fremont CA, US
Evelyn Ning-Yi Wang - Stanford CA, US
Shulin Zeng - Sunnyvale CA, US
Lian Zhang - Sunnyvale CA, US

Assignee:

The Board of Trustees of the Leland Stanford Junior Universty - Stanford CA

International Classification:

F28F 7/00

US Classification:

165 804, 16510421, 16510433, 361700, 257715, 174 151

Abstract:

Apparatus and methods according to the present invention preferably utilize electroosmotic pumps that are capable of generating high pressure and flow without moving mechanical parts and the associated generation of unacceptable electrical and acoustic noise, as well as the associated reduction in reliability. These electroosmotic pumps are preferably fabricated with materials and structures that improve performance, efficiency, and reduce weight and manufacturing cost relative to presently available micropumps. These electroosmotic pumps also preferably allow for recapture of evolved gases and deposited materials, which may provide for long-term closed-loop operation. Apparatus and methods according to the present invention also allow active regulation of the temperature of the device through electrical control of the flow through the pump and can utilize multiple cooling loops to allow independent regulation of the special and temporal characteristics of the device temperature profiles. Novel microchannel structures are also described.

US Patent:

7185697, Mar 6, 2007

Filed:

Sep 2, 2004

Appl. No.:

10/933068

Inventors:

Kenneth E. Goodson - Belmont CA, US
David E. Huber - Mountain View CA, US
Linan Jiang - Menlo Park CA, US
Thomas W. Kenny - San Carlos CA, US
Jae-Mo Koo - Stanford CA, US
Daniel J. Laser - San Francisco CA, US
James C. Mikkelsen - Los Altos CA, US
Juan G. Santiago - Fremont CA, US
Evelyn Ning-Yi Wang - Stanford CA, US
Shulin Zeng - Sunnyvale CA, US
Lian Zhang - Sunnyvale CA, US

Assignee:

Board of Trustees of the Leland Stanford Junior University - Palo Alto CA

International Classification:

F28D 15/06
F04F 11/00

US Classification:

16510433, 417 48

Abstract:

Apparatus and methods according to the present invention preferably utilize electroosmotic pumps that are capable of generating high pressure and flow without moving mechanical parts and the associated generation of unacceptable electrical and acoustic noise, as well as the associated reduction in reliability. These electroosmotic pumps are preferably fabricated with materials and structures that improve performance, efficiency, and reduce weight and manufacturing cost relative to presently available micropumps. These electroosmotic pumps also preferably allow for recapture of evolved gases and deposited materials, which may provide for long-term closed-loop operation. Apparatus and methods according to the present invention also allow active regulation of the temperature of the device through electrical control of the flow through the pump and can utilize multiple cooling loops to allow independent regulation of the special and temporal characteristics of the device temperature profiles. Novel microchannel structures are also described.

US Patent:

7235159, Jun 26, 2007

Filed:

Sep 16, 2004

Appl. No.:

10/943321

Inventors:

Gang Gu - Palo Alto CA, US
Lawrence Pan - Los Gatos CA, US
Lian Zhang - Cupertino CA, US

Assignee:

Molecular Nanosystems, Inc. - Palo Alto CA

International Classification:

C23C 11/34
C23C 14/24
C23C 14/30
C25D 15/00
B01J 23/28
B01J 23/30
B01J 23/745
B01J 23/75
B01J 23/755

US Classification:

2041921, 20419212, 20419215, 205109, 4234473, 427226, 427228, 427229, 4272481, 4272491, 42725519, 4273722, 4273831, 427596, 427597, 502305, 502325, 502337, 502338

Abstract:

A catalyst material for carbon nanotube synthesis includes a uniform dispersion of host particles on a substrate. The host particles themselves include catalyst nanoparticles that are effective to catalyze nanotube syntheses reactions and provide nucleation sites. Methods for preparing catalyst materials include co-sputtering a catalytic species and a host species to form a precursor thin film on a substrate, followed by an oxidation reaction of the precursor thin film in air. The precursor thin film can be patterned on the substrate to limit the locations of the catalyst material to well-defined areas. Methods for nanotube synthesis employ CVD in conjunction with the catalyst materials of the invention. During the synthesis, the catalyst nanoparticles catalyze carbon nanotubes to grown from a carbon-containing gas.

US Patent:

7334630, Feb 26, 2008

Filed:

May 25, 2005

Appl. No.:

11/136793

Inventors:

Kenneth E. Goodson - Belmont CA, US
David E. Huber - Mountain View CA, US
Linan Jiang - Menlo Park CA, US
Thomas W. Kenny - San Carlos CA, US
Jae-Mo Koo - Stanford CA, US
Daniel J. Laser - San Francisco CA, US
James C. Mikkelsen - Los Altos CA, US
Juan G. Santiago - Fremont CA, US
Evelyn Ning-Yi Wang - Stanford CA, US
Shulin Zeng - Sunnyvale CA, US
Lian Zhang - Sunnyvale CA, US

Assignee:

The Board of Trustees of the Leland Stanford Junior University - Palo Alto CA

International Classification:

H05K 7/20

US Classification:

16510433, 361700, 165146

Abstract:

Apparatus and methods according to the present invention utilize micropumps that are capable of generating high pressure and flow without moving mechanical parts and the associated generation of unacceptable electrical and acoustic noise, as well as the associated reduction in reliability. These micropumps are fabricated with materials and structures that improve performance, efficiency, and reduce weight and manufacturing cost relative to presently available micropumps. These micropumps also can allow for recapture of evolved gases and deposited materials, which may provide for long-term closed-loop operation. Apparatus and methods according to the present invention also allow active regulation of the temperature of the device through electrical control of the flow through the pump and can utilize multiple cooling loops to allow independent regulation of the spatial and temporal characteristics of the device temperature profiles. Novel enclosed microchannel structures are also described.

US Patent:

20040200734, Oct 14, 2004

Filed:

Dec 19, 2003

Appl. No.:

10/742665

Inventors:

Man Co - Cupertino CA, US
Lian Zhang - Sunnyvale CA, US
Gang Gu - Palo Alto CA, US
Lawrence Pan - Los Gatos CA, US
Jim Protsenko - San Jose CA, US

International Classification:

G01N027/26

US Classification:

205/777500, 204/403010

Abstract:

In one embodiment, the present invention provides for a nanotube-based sensor for detecting a biomolecule comprising one or a plurality of nanotubes, a first electrode and a second electrode connected to said nanotubes, a microfluidic system, and a plurality of immobilized biomolecules, wherein said plurality of immobilized biomolecules are immobilized on said plurality of nanotubes, said plurality of nanotubes are integrated to said microfluidic system, and said first electrode and said second electrode are connected to provide to electrical readout. In another embodiment, said plurality of immobilized biomolecules are immobilized on said substrate or said electrodes or the said microfluidics system. In another embodiment, the sensors are integrated to provide an array of sensors. The present invention further provides for methods to detect a biomolecule using the nanotube-based sensors or arrays of sensors.

US Patent:

20080159943, Jul 3, 2008

Filed:

Jun 22, 2007

Appl. No.:

11/821160

Inventors:

Gang Gu - Palo Alto CA, US
Lawrence Pan - Los Gatos CA, US
Lian Zhang - Cupertino CA, US

International Classification:

C01B 31/02

US Classification:

423445 B

Abstract:

A catalyst material for carbon nanotube synthesis includes a uniform dispersion of host particles on a substrate. The host particles themselves include catalyst nanoparticles that are effective to catalyze nanotube syntheses reactions and provide nucleation sites. Methods for preparing catalyst materials include co-sputtering a catalytic species and a host species to form a precursor thin film on a substrate, followed by an oxidation reaction of the precursor thin film in air. The precursor thin film can be patterned on the substrate to limit the locations of the catalyst material to well-defined areas. Methods for nanotube synthesis employ CVD in conjunction with the catalyst materials of the invention. During the synthesis, the catalyst nanoparticles catalyze carbon nanotubes to grown from a carbon-containing gas.