Media.Player

Unique Anti-Fouling and Anti-Microbial Coatings for Marine Applications

Technology Benefits

Biocidal activities have been shown on a range of bacteria, diatom and yeast cultures. These coatings are found to be stable after water immersion.

Detailed Technology Description

The quarternary ammonium salt forms a cross-linked network structure with trimethoxy groups in silanol terminated poly-dimethylsiloxane, where the salt is chemically bonded in the network structure. Types of QASs, their levels of concentration, molecular weight of poly-siloxanes, levels of catalyst, and the amount of cross-linker are the critical determinants on the stability and effectiveness of the coating.

Supplementary Information

Patent Number: US8372384B2
Application Number: US20086926A
Inventor: Chisholm, Bret Ja | Majumdar, Partha | Stafslien, Shane J. | Boudjouk, Philip
Priority Date: 8 Jan 2007
Priority Number: US8372384B2
Application Date: 7 Jan 2008
Publication Date: 12 Feb 2013
IPC Current: A61K003174
US Class: 42407809
Assignee Applicant: NDSU Research Foundation,Fargo
Title: Quaternary ammonium functionalized cross-linked polyalkylsiloxanes with anti-fouling activity
Usefulness: Quaternary ammonium functionalized cross-linked polyalkylsiloxanes with anti-fouling activity
Summary: A polymeric material used as coating for inhibiting biofilm growth on a substrate, inhibiting biofilm retention on a substrate, and facilitating biofilm removal from a substrate surface (claimed), e.g. urinary catheters, protective sheaths for pacemakers, and implantable electronics. The coating inhibits biological fouling on artificial surfaces, e.g. ship hulls, immersed in seawater.
Novelty: Polymeric material used as coating for inhibiting biofilm growth on, e.g. urinary catheters or protective sheaths, is formed by reacting alkoxysilyl functionalized quaternary amine and silanol terminated polysiloxane

Industry

Environmental/Green Technology

Sub Category

Anti-Fouling

*Abstract

This invention pertains to the development of stable polymeric anti-fouling surface coating formulation that contains Quaternary Ammonium Salts (QAS) as the primary disinfectant.

*Principal Investigator

Name: Bret Chisholm

Department:

Country/Region

USA