skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Sub-micron filter

Abstract

Aluminum hydroxide fibers approximately 2 nanometers in diameter and with surface areas ranging from 200 to 650 m.sup.2/g have been found to be highly electropositive. When dispersed in water they are able to attach to and retain electronegative particles. When combined into a composite filter with other fibers or particles they can filter bacteria and nano size particulates such as viruses and colloidal particles at high flux through the filter. Such filters can be used for purification and sterilization of water, biological, medical and pharmaceutical fluids, and as a collector/concentrator for detection and assay of microbes and viruses. The alumina fibers are also capable of filtering sub-micron inorganic and metallic particles to produce ultra pure water. The fibers are suitable as a substrate for growth of cells. Macromolecules such as proteins may be separated from each other based on their electronegative charges.

Inventors:
 [1];  [2]
  1. Sanford, FL
  2. Port Orange, FL
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1001798
Patent Number(s):
7,601,262
Application Number:
11/023,281
Assignee:
Argonide Corporation (Sanford, FL) ALO
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Tepper, Frederick, and Kaledin, Leonid. Sub-micron filter. United States: N. p., 2009. Web.
Tepper, Frederick, & Kaledin, Leonid. Sub-micron filter. United States.
Tepper, Frederick, and Kaledin, Leonid. Tue . "Sub-micron filter". United States. https://www.osti.gov/servlets/purl/1001798.
@article{osti_1001798,
title = {Sub-micron filter},
author = {Tepper, Frederick and Kaledin, Leonid},
abstractNote = {Aluminum hydroxide fibers approximately 2 nanometers in diameter and with surface areas ranging from 200 to 650 m.sup.2/g have been found to be highly electropositive. When dispersed in water they are able to attach to and retain electronegative particles. When combined into a composite filter with other fibers or particles they can filter bacteria and nano size particulates such as viruses and colloidal particles at high flux through the filter. Such filters can be used for purification and sterilization of water, biological, medical and pharmaceutical fluids, and as a collector/concentrator for detection and assay of microbes and viruses. The alumina fibers are also capable of filtering sub-micron inorganic and metallic particles to produce ultra pure water. The fibers are suitable as a substrate for growth of cells. Macromolecules such as proteins may be separated from each other based on their electronegative charges.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 13 00:00:00 EDT 2009},
month = {Tue Oct 13 00:00:00 EDT 2009}
}

Patent:

Save / Share: