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Agbai Nnanna Phones & Addresses

  • Midland, TX
  • Crown Point, IN
  • West Lafayette, IN
  • Merrillville, IN
  • Elizabeth City, NC
  • Hammond, IN
  • Lubbock, TX
  • Irving, TX
  • Arlington, TX
  • Laketon, IN

Publications

Us Patents

Oxazine-Based Sensor For Contaminant Detection, Fabrication Method Therefor, And Uses Thereof

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US Patent:
20120288953, Nov 15, 2012
Filed:
May 14, 2012
Appl. No.:
13/470728
Inventors:
Agbai Agwu Nnanna - Crown Point IN, US
Ahmed Hasnain Jalal - Chittagong, BD
Assignee:
Purdue Research Foundation - West Lafayette IN
International Classification:
G01N 21/75
B05D 3/00
B05D 5/00
US Classification:
436113, 422426, 427162
Abstract:
A sensor, a method for its fabrication, and a method for its use to detect contaminants, for example, ammonia, in stagnant and dynamic fluid media, especially liquid media. The sensor is an opto-chemical sensor that includes a polymer optical fiber, a sensing layer comprising oxazine 170 perchlorate on the polymer optical fiber, and a membrane layer on the sensing layer. The membrane layer is gas permeable and not permeable to the fluid in the fluid system, and moisture is entrapped by and between the sensing and membrane layers.

System Of Purifying Water, Method Of Making The Same, And Method Of Using The Same

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US Patent:
20200247687, Aug 6, 2020
Filed:
Jan 27, 2020
Appl. No.:
16/752767
Inventors:
- West Lafayette IN, US
Agbai Nnanna - Odessa TX, US
Assignee:
Purdue Research Foundation - West Lafayette IN
International Classification:
C02F 1/04
C02F 1/28
C02F 1/14
C02F 103/10
Abstract:
A system including an enclosure, wherein the enclosure includes a polyurethane foam. The polyurethane foam includes activated carbon. The polyurethane foam includes a plurality of perforations. The enclosure additionally includes an inlet, wherein the polyurethane foam is over the inlet. Moreover, the enclosure includes an outlet, wherein the outlet is over the polyurethane foam. Furthermore, the enclosure includes a heating element, wherein the heating element is configured to heat contents of the enclosure.

System And Method For Sensing And Trapping Nanoparticles With Plasmonic Nanopores

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US Patent:
20200141852, May 7, 2020
Filed:
Dec 17, 2019
Appl. No.:
16/717842
Inventors:
- West Lafayette IN, US
Agbai Nnanna - Crown Point IN, US
Assignee:
Purdue Research Foundation - West Lafayette IN
International Classification:
G01N 15/00
G21K 1/00
G02B 5/00
Abstract:
An apparatus for trapping and sensing nanoparticles using plasmonic nanopores, comprising a conductive transparent layer, a conductive film layer mounted to a substrate, the film layer comprising a plurality of nanopores for trapping nanoparticles contained in a fluid situated between the conductive transparent layer and the conductive film layer, and an electric field source connected between the transparent layer and the film layer.

System And Method For Sensing And Trapping Nanoparticles With Plasmonic Nanopores

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US Patent:
20190154558, May 23, 2019
Filed:
Jan 15, 2019
Appl. No.:
16/248758
Inventors:
- West Lafayette IN, US
Agbai Nnanna - Crown Point IN, US
Assignee:
Purdue Research Foundation - West Lafayette IN
International Classification:
G01N 15/00
G02B 5/00
G21K 1/00
Abstract:
An apparatus for trapping and sensing nanoparticles using plasmonic nanopores, comprising a conductive transparent layer, a conductive film layer mounted to a substrate, the film layer comprising a plurality of nanopores for trapping nanoparticles contained in a fluid situated between the conductive transparent layer and the conductive film layer, and an electric field source connected between the transparent layer and the film layer.

System And Method For Sensing And Trapping Nanoparticles With Plasmonic Nanopores

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US Patent:
20170284935, Oct 5, 2017
Filed:
Mar 31, 2017
Appl. No.:
15/476868
Inventors:
- West Lafayette IN, US
Agbai Nnanna - Crown Point IN, US
Assignee:
Purdue Research Foundation - West Lafayette IN
International Classification:
G01N 21/552
G01J 3/44
G01N 21/65
Abstract:
An apparatus for trapping and sensing nanoparticles using plasmonic nanopores, comprising a conductive transparent layer, a conductive film layer mounted to a substrate, the film layer comprising a plurality of nanopores for trapping nanoparticles contained in a fluid situated between the conductive transparent layer and the conductive film layer, and an electric field source connected between the transparent layer and the film layer.

Multi-Site Particle Sensing System

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US Patent:
20170003283, Jan 5, 2017
Filed:
Jun 6, 2016
Appl. No.:
15/174990
Inventors:
- West Lafayette IN, US
Alexander Kildishev - West Lafayette IN, US
Agbai Nnanna - Crown Point IN, US
Assignee:
Purdue Research Foundation - West Lafayette IN
International Classification:
G01N 33/543
B01L 3/00
G01N 1/40
G02B 5/00
G02B 3/00
Abstract:
A particle sensing system which includes a plurality of micro-lenses which focus light from an unfocused or loosely focused light source onto a corresponding plurality of focus regions on a surface containing plasmonic structures. The absorption of light by the plasmonic structures in the focus regions results in heat dissipation in the plasmonic structures and consequently increases surface temperature in the focus regions. When an electrical field is applied to a sample fluid in contact with the surface, multiple electrothermal flows are induced in the fluid which rapidly transport suspended particles to the focus regions on the surface. The particles can then be captured and/or sensed.

System And Method For Manipulation Of Particles

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US Patent:
20160370316, Dec 22, 2016
Filed:
Jun 15, 2016
Appl. No.:
15/183382
Inventors:
- West Lafayette IN, US
Agbai A. Nnanna - Crown Point IN, US
Steven Truitt Wereley - West Lafayette IN, US
Alexander Kildishev - West Lafayette IN, US
Vladimir M. Shalaev - West Lafayette IN, US
International Classification:
G01N 27/447
Abstract:
A system and method suitable for selection, manipulation, and analysis of individual particles within a fluid medium. The system and method involve manipulating the particles by contacting the fluid medium with a plasmonic nanoantenna, illuminating the plasmonic nanoantenna with a source of light such that the plasmonic nanoantenna acts as a nanoscale heat source resulting in localized heating of the fluid medium creating local gradients in the electrical properties of the fluid medium that yield plasmonic trapping sites in the vicinity of the plasmonic nanoantenna, and applying an alternating current electric field in the fluid medium to create electrothermoplasmonic flow around the plasmonic nanoantenna. The electrothermoplasmonic flow transports at least one of the particles towards the plasmonic nanoantenna and the particle is trapped by at least one of the plasmonic trapping sites.

Hybrid Device For On-Chip Concentration, Manipulation, Sorting And Sensing Of Particles On A Plasmonic Substrate

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US Patent:
20150380120, Dec 31, 2015
Filed:
Jun 6, 2015
Appl. No.:
14/732673
Inventors:
- West Lafayette IN, US
Agbai A. Nnanna - Crown Point IN, US
Justus C. Ndukaife - Hammond IN, US
International Classification:
G21K 1/00
G02B 5/00
Abstract:
The present disclosure relates generally to plasmonic substrates and specifically to high-throughput trapping of particles on a plasmonic substrate.
Agbai A Nnanna from Midland, TX, age ~57 Get Report