Junhong H Chen

US Patent:

8240190, Aug 14, 2012

Filed:

Aug 28, 2008

Appl. No.:

12/199891

Inventors:

Junhong Chen - Kenosha WI, US
Ganhua Lu - Milwaukee WI, US

Assignee:

UWM Research Foundation, Inc. - Milwaukee WI

International Classification:

G01N 7/00

US Classification:

73 3106, 73 232

Abstract:

The invention provides a novel method for the fabrication of nanomaterials, especially nanostructures arranged on a substrate with nanoparticles deposited thereon. The methods of the present invention can be used to fabricate a novel ambient-temperature gas sensor that is capable of detecting a variety of specific gasses over a range of concentrations.

US Patent:

8268405, Sep 18, 2012

Filed:

Aug 23, 2006

Appl. No.:

11/508687

Inventors:

Junhong Chen - Kenosha WI, US
Ganhua Lu - Milwaukee WI, US

Assignee:

UWM Research Foundation, Inc. - Milwaukee WI

International Classification:

B05D 1/16

US Classification:

427465, 427569, 427561, 427485

Abstract:

The present invention addresses the problem of conveniently and efficiently decorating nanostructures such as carbon nanotubes with aerosol nanoparticles using electrostatic force directed assembly (“ESFDA”). ESFDA permits size selection as well as control of packing density spacing of nanoparticles. ESFDA is largely material independent allowing different compositions of such nanoparticle-nanotube structures to be produced.

US Patent:

20060197018, Sep 7, 2006

Filed:

Jan 6, 2006

Appl. No.:

11/327679

Inventors:

Junhong Chen - Shorewood WI, US

International Classification:

H01T 19/04
G03G 15/02

US Classification:

250326000, 361229000

Abstract:

An electrode for atmospheric corona discharge apparatus provide a passive conductor whose surface is decorated with nanostructures such as carbon nanotubes. The nanotubes provide for a lower corona discharge initiation voltage and raise the possibility for reduced ozone production on corona discharge devices.

US Patent:

20120214172, Aug 23, 2012

Filed:

Feb 17, 2012

Appl. No.:

13/399288

Inventors:

Junhong Chen - Kenosha WI, US
Shun Mao - Milwaukee WI, US
Ganhua Lu - Milwaukee WI, US

Assignee:

UWM RESEARCH FOUNDATION, INC. - MILWAUKEE WI

International Classification:

G01N 27/22
G01N 27/00
G01N 27/04
H01L 29/76
H01L 21/04
B82Y 15/00

US Classification:

435 619, 257 29, 438 49, 435 79, 257E29241, 257E21041, 977810, 977920

Abstract:

The disclosure provides a field-effect transistor (FET)-based biosensor and uses thereof. In particular, to FET-based biosensors using thermally reduced graphene-based sheets as a conducting channel decorated with nanoparticle-biomolecule conjugates. The present disclosure also relates to FET-based biosensors using metal nitride/graphene hybrid sheets. The disclosure provides a method for detecting a target biomolecule in a sample using the FET-based biosensor described herein.

US Patent:

20150240351, Aug 27, 2015

Filed:

Sep 7, 2012

Appl. No.:

13/607220

Inventors:

Junhong Chen - Kenosha WI, US
Kehan Yu - , US
Zheng Bo - , US

International Classification:

C23C 16/26
C23C 16/44
C23C 16/50
H01J 27/02

Abstract:

A method of growing carbon nanostructures on a conductive substrate without the need for a vacuum or low-pressure environment provides high electrical field strengths to generate the necessary carbon ions from a feedstock gas and to promote alignment and separation of the resulting structures. In one embodiment, substantially uniform “vertical” nanostructures may be formed around the periphery of an extended wire for use in corona discharge applications or the like. Growth on a planar substrate may provide use with a variety of apparatus requiring a high specific surface conductor such as capacitors, batteries, and solar cells.