Title: Method to fabricate functionalized conical nanopores

Abstract

A pressure-based chemical etch method is used to shape polymer nanopores into cones. By varying the pressure, the pore tip diameter can be controlled, while the pore base diameter is largely unaffected. The method provides an easy, low-cost approach for conically etching high density nanopores.

Inventors:

Small, Leo J.; Spoerke, Erik David; Wheeler, David R.

Issue Date:

2016-07-12

Research Org.:

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1261635

Patent Number(s):

9387444

Application Number:

14/543,298

Assignee:

Sandia Corporation (Albuquerque, NM)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

B01D71/50 - Polycarbonates
B01D67/0034 - {by micromachining techniques, e.g. using masking and etching steps, photolithography}
B01D2325/021 - Characteristic pore shapes
B01D2325/42 - Ion-exchange membranes
B01D69/02 - characterised by their properties
B01D67/0093 - {Chemical modification}

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DOE Contract Number:  

AC04-94AL85000

Resource Type:

Patent

Resource Relation:

Patent File Date: 2014 Nov 17

Country of Publication:

United States

Language:

English

Subject:

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE