# US 2014/0193589 A1 · Electro-spun fibers and applications therefore > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0193589 A1 - Document ID: US20140193589A1 - Status: Published application - Kind: A1 - Application number: 14/065,988 - Filed: 2013-10-29 - Published: 2014-07-10 - Earliest claimed: 2008-09-11 - Assignees: The Ohio State University Research Foundation - Applicants: The Ohio State University Research Foundation - Inventors: Susan V. Olesik; Jonathan E. Clark; Jeremy K. Steach; Joseph W. Zewe - Web page: https://patentgrep.com/patent/US20140193589A1 ## CPC - D01D 5/0084: {Coating by electro-spinning, i.e. the electro-spun fibres are not removed from the collecting device but remain integral with it, e.g. coating of prostheses} - B01D 15/20: relating to the conditioning of the sorbent material - B01J 20/28007: {with size in the range 1-100 nanometers, e.g. nanosized particles, nanofibers, nanotubes, nanowires or the like (carbon nanostructures B01J20/205)} - B01J 20/28033: {Membrane, sheet, cloth, pad, lamellar or mat} - B01J 20/28035: {with more than one layer, e.g. laminates, separated sheets} - B01J 20/286: Phases chemically bonded to a substrate, e.g. to silica or to polymers - B01J 20/3293: {Coatings on a core, the core being particle or fiber shaped, e.g. encapsulated particles, coated fibers} - B01J 20/3295: {Coatings made of particles, nanoparticles, fibers, nanofibers} - B05D 5/00: Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures - B82Y 30/00: Nanotechnology for materials or surface science, e.g. nanocomposites - D01F 9/12: Carbon filaments; Apparatus specially adapted for the manufacture thereof - G01N 30/06: Preparation - G01N 30/93: Application of the sorbent layer - B01J 2220/54: Sorbents specially adapted for analytical or investigative chromatography - G01N 2030/009: {Extraction} - G01N 2030/062: {extracting sample from raw material} - D01D: MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS - B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02) - B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES - D01F: CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) ## 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. ## Claims ### Claim 1 A method for manufacturing a supported nanofiber medium useful for segregating chemical species, comprising the steps of: selecting a polymer; selecting a substrate; and electrospinning the polymer, forming a nanofiber medium on the supporting substrate. ### Claim 2 (depends on 1) The method of claim 1, wherein: the substrate is a planar surface; and the nanofiber medium comprises a mat suitable for conducting chromatographic separation. ### Claim 3 (depends on 1) The method of claim 1, wherein: the substrate is a filament; and the nanofiber medium is an annular mat suitable for solid phase microextraction. ### Claim 4 (depends on 1) The method according to claim 1 wherein further comprising the step of: selectively cross-linking the nanofiber medium. ### Claim 5 (depends on 2) The method according to claim 2 wherein further comprising the step of: selectively cross-linking the nanofiber medium. ### Claim 6 (depends on 3) The method according to claim 3 wherein further comprising the step of: selectively cross-linking the nanofiber medium. ### Claim 7 (depends on 1) The method according to claim 1 further comprising the step of: selectively cross-linking the nanofiber medium. ### Claim 8 (depends on 2) The method according to claim 2 further comprising the step of: selectively cross-linking the nanofiber medium. ### Claim 9 (depends on 3) The method according to claim 3 further comprising the step of: selectively cross-linking the nanofiber medium. ### Claim 10 (depends on 4) The method according to claim 4 further comprising the step of: selectively cross-linking the nanofiber medium. ### Claim 11 (depends on 5) The method according to claim 5 further comprising the step of: selectively cross-linking the nanofiber medium. ### Claim 12 (depends on 6) The method according to claim 6 further comprising the step of: selectively cross-linking the nanofiber medium. ### Claim 13 (depends on 1) The method according to claim 1 further comprising the step of: heating the nanofiber medium sufficiently to convert at least a portion of the nanofibers to glassy carbon nanofibers. ### Claim 14 (depends on 2) The method according to claim 2 further comprising the step of: heating the nanofiber medium sufficiently to convert at least a portion of the nanofibers to glassy carbon nanofibers. ### Claim 15 (depends on 3) The method according to claim 3 further comprising the step of: heating the nanofiber medium sufficiently to convert at least a portion of the nanofibers to glassy carbon nanofibers. ### Claim 16 (depends on 4) The method according to claim 4 further comprising the step of: heating the nanofiber medium sufficiently to convert at least a portion of the nanofibers to glassy carbon nanofibers. ### Claim 17 (depends on 5) The method according to claim 5 further comprising the step of: heating the nanofiber medium sufficiently to convert at least a portion of the nanofibers to glassy carbon nanofibers. ### Claim 18 (depends on 6) The method according to claim 6 further comprising the step of: heating the nanofiber medium sufficiently to convert at least a portion of the nanofibers to glassy carbon nanofibers. ### Claim 19 (depends on 1) The method according to claim 1, wherein the supported nanofiber medium is devoid of binder material. ### Claim 20 (depends on 2) The method according to claim 2, wherein the supported nanofiber medium is devoid of binder material. ### Claim 21 (depends on 3) The method according to claim 3, wherein the supported nanofiber medium is devoid of binder material. ### Claim 22 (depends on 4) The method according to claim 4, wherein the supported nanofiber medium is devoid of binder material. ### Claim 23 (depends on 5) The method according to claim 5, wherein the supported nanofiber medium is devoid of binder material. ### Claim 24 (depends on 6) The method according to claim 6, wherein the supported nanofiber medium is devoid of binder material. ### Claim 25 (depends on 7) The method according to claim 7, wherein the supported nanofiber medium is devoid of binder material. ### Claim 26 (depends on 8) The method according to claim 8, wherein the supported nanofiber medium is devoid of binder material. ### Claim 27 (depends on 9) The method according to claim 9, wherein the supported nanofiber medium is devoid of binder material. ### Claim 28 (depends on 10) The method according to claim 10, wherein the supported nanofiber medium is devoid of binder material. ### Claim 29 (depends on 11) The method according to claim 11, wherein the supported nanofiber medium is devoid of binder material. ### Claim 30 (depends on 12) The method according to claim 12, wherein the supported nanofiber medium is devoid of binder material. ### Claim 31 (depends on 13) The method according to claim 13, wherein the supported nanofiber medium is devoid of binder material. ### Claim 32 (depends on 14) The method according to claim 14, wherein the supported nanofiber medium is devoid of binder material. ### Claim 33 (depends on 15) The method according to claim 15, wherein the supported nanofiber medium is devoid of binder material. ### Claim 34 (depends on 16) The method according to claim 16, wherein the supported nanofiber medium is devoid of binder material. ### Claim 35 (depends on 17) The method according to claim 17, wherein the supported nanofiber medium is devoid of binder material. ### Claim 36 (depends on 18) The method according to claim 18, wherein the supported nanofiber medium is devoid of binder material.