US 2017/0247720 A1 · BIOLOGICAL PROCESS FOR PRODUCING MAGNETIC NANOPARTICLES

Abstract

A process for obtaining gold magnetic nanoparticles or of other metallic elements by fermenting a culture medium in the presence of producer microorganisms such as Brevibacterium halotolerans, Bacillus mojavensis, Bacillus subtilis subsp. Inaquosorum, Bacillus subtilis subsp. Spizizenii, Bacillus tequilensis, Bacillus amyloliquefaciens subsp. Amyloliquefaciens, Bacillus siamenensis, Bacillus amyloliquefaciens subsp. Plantarum, Bacillus subtilis, Bacillus subtilis subsp. Inaquosorum, Bacillus atrophaeus, or Bacillus vallismortis, inter alia. The process of the invention can be used to effectively control the size and shape of the nanostructure to be obtained, with production levels above those found at laboratory level.

Claims17

Dependent claims

A biotechnological process for obtaining magnetic nanoparticles which comprises obtaining magnetic nanoparticles from producer microorganisms, wherein the process comprises the steps of:

selecting and preparing the producer microorganism;
growing said microorganism's inoculum;
sterilizing a culture medium;
adding a salt of a metallic element of interest;
fermenting the culture medium with the microorganism;
centrifugation of the depleted broth;
cell lysis to separate the obtained nanoparticles;
sonication of the cellular remains;
microfiltration and ultracentrifugation;
and final presentation of the obtained magnetic nanoparticles.

7 more elements

Dependencies are inferred from the claim text.

Biological process for producing magnetic nanoparticles

Life of this patent

Biological process for producing magnetic nanoparticles

Life of this patent

Abstract

Claims17