Luis A Colon

US Patent:

20100140154, Jun 10, 2010

Filed:

Mar 9, 2005

Appl. No.:

12/280069

Inventors:

Luis A. Colon - Amherst NY, US
David C. Hoth - East Aurora NY, US

Assignee:

The Research Foundation of State University of New York - Amherst NY

International Classification:

B01D 15/22
C08J 9/00

US Classification:

2101982, 521 92, 521 93

Abstract:

The present invention discloses methods of preparing a continuous, porous metal oxide monolith in a container. The method involves providing a reaction mixture containing a metal salt or metal alkoxide compound, a solvent, and a porogenic reagent. Next, an epoxide is added to the reaction mixture under conditions effective to initiate condensation and polymerization of the reaction mixture. Then, a container is filled with the reaction mixture after epoxide addition to obtain a continuous, porous metal oxide monolith in the container. The present invention also discloses columns including a tubular container and a continuous, porous Group IV metal oxide monolith in contact with the inner walls of the tubular container, where the Group IV metal oxide monolith is free of any support or matrix material, and other articles including a continuous, porous Group IV metal oxide monolith, where the metal oxide monolith is free of any support or matrix material.

US Patent:

60952024, Aug 1, 2000

Filed:

Apr 15, 1998

Appl. No.:

9/060486

Inventors:

Luis A. Colon - Amherst NY
Adam M. Fermier - Lebanon NJ
Gary R. Sagerman - Darien Center NY

Assignee:

Research Foundation State University of New York - Albany NY

International Classification:

B01D 1508

US Classification:

141 34

Abstract:

The present invention features a method and apparatus with a rotatable central reservoir and radially extending support arms for packing chromatographic columns at a consistent gradient of particle impact by using centripetal forces to independently accelerate particles comprising a bed material through a filling opening at one end of the column and continuously as they move axially along the length of the column to their packed destination. The method and apparatus are particularly suitable for use in packing capillary columns having an interior diameter of about 500 microns or less.

US Patent:

58691529, Feb 9, 1999

Filed:

Mar 1, 1996

Appl. No.:

8/609425

Inventors:

Luis A. Colon - Amherst NY

Assignee:

The Research Foundation of State University of New York - Amherst NY

International Classification:

B32B 900

US Classification:

428 344

Abstract:

The present invention relates to silica materials and particles having surfaces which define an interior. The interior includes interior silicon atoms at least a portion of which is bonded to a substituted or unsubstituted alkyl moiety. In a preferred aspect of the present invention, the silica material also has surface silicon atoms to which are bonded substituted or unsubstituted alkyl moieties. A capillary tube coated on its inner surface with the silica material of the present invention is also disclosed. The silica materials of the present invention are resistant to degradation at high or low pH and are particularly useful as chromatographic stationary phases, especially for use in open tubular liquid chromatography and open tubular electrochromatography.

US Patent:

60166894, Jan 25, 2000

Filed:

Nov 18, 1996

Appl. No.:

8/752460

Inventors:

Frank V. Bright - Amherst NY
Luis A. Colon - Amherst NY
Jeffrey D. Jordan - Buffalo NY
Richard A. Dunbar - Canoga Park CA

Assignee:

The Research Foundation of Suny at Buffalo - Amherst NY

International Classification:

G01N 700

US Classification:

73 3105

Abstract:

A sensor having a substrate overlayed with a sol-gel layer, a chemical sensing species deposited upon the sol-gel layer, and a thin film of a second sol-gel layer overlaying and entrapping the species. The effect of this sensor is that the species exhibits a significant portion of its intrinsic function over a period of time. In yet another embodiment of the subject invention, a method is disclosed to form a thin sol-gel layer upon an ambient substrat. This method ensures the integrity, stability and functionality of the chemical sensing species within the sol-gel layers.

US Patent:

54805252, Jan 2, 1996

Filed:

Apr 29, 1994

Appl. No.:

8/235299

Inventors:

Luis A. Colon - Amherst NY
Rajeev Dadoo - Stanford CA
William H. Whitted - Palo Alto CA
Richard N. Zare - Stanford CA
Andrew G. Ewing - State College PA
Sandra S. Ferris - State College PA
Jennifer U. Woelker - Madison WI

Assignee:

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

International Classification:

B01D 6142
B01D 6146

US Classification:

2041801

Abstract:

End-column detectors are provided in which either a sensing microelectrode or optical fiber is placed at the end of the separation capillary. Additionally, an alignment apparatus is provided to facilitate the manual or automated positioning of either type of sensing device relative to the end of the separation capillary. The invention provides detectors that are sensitive, reliable, and easy to construct and to operate.