Abuzar Kabir

US Patent:

20050106068, May 19, 2005

Filed:

Nov 18, 2003

Appl. No.:

10/716310

Inventors:

Abdul Malik - Tampa FL, US
Abuzar Kabir - Tampa FL, US
George Newkome - Akron OH, US
Kyung Yoo - Akron OH, US

International Classification:

G01N030/02

US Classification:

422089000, 422101000

Abstract:

The present invention provides for a capillary column including a tube structure having an inner surface and a sol-gel substrate bonded to a dendrimer substrate to form a sol-gel dendrimer matrix that bonds to a portion of the inner surface of the tube structure to form a surface-bonded stationary phase coating thereon. The present invention additionally provides for a capillary column including a tube structure having an inner surface, a stationary phase coating attached to a portion of the inner surface, and a dendrimer moiety bonded to the stationary phase coating. Further, a sol-gel dendrimer coated apparatus including a structure having a surface and a sol-gel substrate bonded to a dendrimer substrate to form a sol-gel dendrimer matrix coating the surface thereon is provided. The present invention also provides for a one-step method for making and preparing a column and a method of making the sol-gel and dendrimer solution.

US Patent:

20060013981, Jan 19, 2006

Filed:

Jul 19, 2005

Appl. No.:

11/161004

Inventors:

Abdul Malik - Tampa FL, US
Abuzar Kabir - Tampa FL, US

Assignee:

UNIVERSITY OF SOUTH FLORIDA - Tampa FL

International Classification:

B29D 22/00

US Classification:

428036910, 427226000, 427230000

Abstract:

A sol-gel poly-THF coating was developed for high-performance capillary microextraction to facilitate ultra-trace analysis of polar and nonpolar organic compounds. Parts per quadrillion level detection limits were achieved using Poly-THF coated microextraction capillaries in conjunction with GC-FID. Sol-gel Poly-THF coatings showed extraordinarily high sorption efficiency for both polar and nonpolar compounds, and proved to be highly effective in providing simultaneous extraction of nonpolar, moderately polar, and highly polar analytes from aqueous media. Sol-gel poly-THF coated microextraction capillaries showed excellent thermal and solvent stability, making them very suitable for hyphenation with both gas-phase and liquid-phase separation techniques, including GC, HPLC, and CEC. In CME-HPLC and CME-CEC hyphenations, sol-gel poly-THF coated microextraction capillaries have the potential to provide new levels of detection sensitivity in liquid-phase trace analysis, and to extend the analytical scope of CME to thermally labile-, high molecular weight-, and other types of compounds that are not amenable to GC.

US Patent:

20070062874, Mar 22, 2007

Filed:

Nov 13, 2006

Appl. No.:

11/599497

Inventors:

Abdul Malik - Tampa FL, US
Abuzar Kabir - Tampa FL, US
Chetan Shende - Vernon CT, US

International Classification:

B01D 15/08

US Classification:

210656000, 210198200, 210502100

Abstract:

A capillary column () includes a tube structure having inner walls () and a sol-gel substrate () coated on a portion of inner walls () to form a stationary phase coating () on inner walls (). The sol solution used to prepare the sol-gel substrate () has at least one baseline stabilizing reagent and at least one surface deactivation reagent resulting in the sol-gel substrate () having at least one baseling stabilizing reagent residual and at least one surface deactivating reagent residual. A method of making the sol-gel solution is by mixing suitable sol-gel prescursors to form the solution, stabilizing the solution by adding at least one baseline stabilization reagent, deactivating the solution by adding at least one surface deactivation reagent to the solution, and reacting the solution in the presence of at least one catalyst.

US Patent:

20040129141, Jul 8, 2004

Filed:

Mar 8, 2004

Appl. No.:

10/471388

Inventors:

Abdul Malik - Tampa FL, US
Abuzar Kabir - Tampa FL, US
Chetan Shende - Tampa FL, US

International Classification:

B01D053/02

US Classification:

096/101000

Abstract:

A capillary column () includes a tube structure having inner walls () and a sol-gel substrate () coated on a portion of inner walls () to form a stationary phase coating () on inner walls (). The sol solution used to prepare the sol-gel substrate () has at least one baseline stabilizing reagent and at least one surface deactivation reagent resulting in the sol-gel substrate () having at least one baseline stabilizing reagent residual and at least one surface deactivating reagent residual. A method of making the sol-gel solution is by mixing suitable sol-gel precursors to form the solution, stablizing the solution by adding at least one baseline stabilization reagent, deactivating the solution by adding at least one surface deactivation reagent to the solution, and reacting the solution in the presence of at least one catalyst.

US Patent:

20180059082, Mar 1, 2018

Filed:

Sep 25, 2017

Appl. No.:

15/714349

Inventors:

Abuzar KABIR - Miami FL, US
Kenneth G. FURTON - Homestead FL, US

Assignee:

The Florida International University Board of Trustees - Miami FL

International Classification:

G01N 33/04
G01N 33/94
C08G 77/06
C08G 77/26
C08J 9/26
B01J 20/26
B01J 20/28
B01J 20/30
B01J 20/291

Abstract:

The subject invention provides chemical compositions and synthesis strategies to create molecularly imprinted polymers (MIPs) via sol-gel processes. In a specific embodiment, the subject invention utilizes a(n) organic, inorganic, or metallic template analyte to create a hybrid organic-inorganic or inorganic three-dimensional network possessing cavities complementary to the shape, size, and functional orientation of the template molecule or ions. The subject invention further pertains to the use of the novel MIPs as selective solid phase extraction (SPE) sorbents for pre-concentration and clean-up of trace substances in biological and environmental samples. Synthesis of other molecularly imprinted polymers with environmental, pharmaceutical, chemical, clinical, toxicological, and national security implications can be conducted in accordance with the teachings of the subject invention.

US Patent:

20170108520, Apr 20, 2017

Filed:

Oct 20, 2016

Appl. No.:

15/298776

Inventors:

Abuzar KABIR - Miami FL, US
Kenneth G. FURTON - Homestead FL, US

Assignee:

The Florida International University Board of Trustees - Miami FL

International Classification:

G01N 33/94
C08G 77/06
B01J 20/26
G01N 33/04

Abstract:

The subject invention provides chemical compositions and synthesis strategies to create molecularly imprinted polymers (MIPs) via sol-gel processes. In a specific embodiment, the subject invention utilizes a(n) organic, inorganic, or metallic template analyte to create a hybrid organic-inorganic or inorganic three-dimensional network possessing cavities complementary to the shape, size, and functional orientation of the template molecule or ions. The subject invention further pertains to the use of the novel MIPs as selective solid phase extraction (SPE) sorbents for pre-concentration and clean-up of trace substances in biological and environmental samples. Synthesis of other molecularly imprinted polymers with environmental, pharmaceutical, chemical, clinical, toxicological, and national security implications can be conducted in accordance with the teachings of the subject invention.

US Patent:

20160324120, Nov 10, 2016

Filed:

May 9, 2016

Appl. No.:

15/149851

Inventors:

Kenneth G. FURTON - Homestead FL, US
Michelle CERRETA - Old Bridge NJ, US
Abuzar KABIR - Miami FL, US

Assignee:

The Florida International University Board of Trustees - Miami FL

International Classification:

A01K 15/02
C08K 5/101
C08G 77/00

Abstract:

The subject invention provides the materials and methods for synthesizing novel training devices for biological detectors, such as canines, to locate a specific material by recognizing a characteristic scent associated with the material. In an exemplary embodiment, the training devices encapsulate ate least one active odorant of certain illicit materials, such as cocaine, within a sol-gel polymer network. By manipulating the process of molecular encapsulation and polymer network synthesis, the novel training devices can reduce the influence of contaminants and dissipate the encapsulated odorant in a controlled fashion, allowing for the added benefit of improved shelf-life as compared to currently available training devices.