The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2016
Filed:
Nov. 17, 2006
Janos Borbely, Debrecen, HU;
Ildiko Schriffertne Denyicska, Debrecen, HU;
Reka Melinda Molnar, Debrecen, HU;
Magdolna Bodnar, Hajoluboszormeny, HU;
Janos Borbely, Debrecen, HU;
Ildiko Schriffertne Denyicska, Debrecen, HU;
Reka Melinda Molnar, Debrecen, HU;
Magdolna Bodnar, Hajoluboszormeny, HU;
Other;
Abstract
Methods are disclosed for preparing novel biodegradable nanoparticles based on complexation of poly-gamma-glutamic acid (γ-PGA) or its cross-linked derivatives with bivalent lead ions. The final products are stable in aqueous media at low pH, neutral and mild alkaline conditions. The size of the complexes depends on the pH, concentrations and the ratios of γ-PGA and lead ions The γ-PGA nanoparticles made from biodegradable biopolymers with high flocculating and heavy metal binding activity of the present invention may be used for various water treatment applications in aqueous media.