Jonathan D Clark

US Patent:

8568587, Oct 29, 2013

Filed:

Mar 11, 2011

Appl. No.:

13/046552

Inventors:

Susan V. Olesik - Dublin OH, US
Jonathan E. Clark - Nashville TN, US
Jeremy K. Steach - Kingsport TN, US
Joseph W. Zewe - Marion Center PA, US

Assignee:

The Ohio State University Research Foundation - Columbus OH

International Classification:

B01D 15/08

US Classification:

2101982, 2101983, 2105021, 210634, 210635, 210656, 210658

Abstract:

A supported nanofiber medium useful for segregating chemical species is provided by selecting a polymer, selecting a substrate; and electrospinning the polymer to form a nanofiber medium on the supporting substrate. When the substrate is a planar surface, the nanofiber medium will be a mat suitable for conducting chromatographic separation. When the substrate is a filament, the nanofiber medium is an annular mat suitable for solid phase microextraction. The nanofiber media formed may be selectively cross-linked and at least partially carbonized to carbon nanofibers. The nanofiber medium is supported on the substrate without the use of binder material.

US Patent:

20130233780, Sep 12, 2013

Filed:

Mar 12, 2013

Appl. No.:

13/796611

Inventors:

Susan Olesik - Columbus OH, US
Michael Beilke - Columbus OH, US
Jonathan Clark - Columbus OH, US
Joseph Zewe - Columbus OH, US

International Classification:

G01N 30/94

US Classification:

2101983, 264 8

Abstract:

An ultrathin-layer chromatography plate including a stationary phase comprising electrospun nanofibers wherein at least about 50% of the nanofibers are oriented within 20 of a direction of alignment, and wherein the stationary phase has a thickness from about 10 μm to about 30 μm.