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2013 R&D 100 Winner
Silver has been known for centuries to possess excellent antimicrobial activity. However, silver is thermally and photochemically reactive, and rapidly discolors in the presence of heat and light. When stabilized, silver has been shown useful in textiles to prevent the accumulation of odor-causing bacteria. But conventional methods, such as diffusion or ion exchange, are not adequate. Dow Microbial Control, a business unit of The Dow Chemical Co., has developed SILVADUR as a way to more effectively use silver’s natural properties. The new chemistry is based on a metal-ligand complexation technology that conveys a low concentration of silver ions on fabric surfaces and intelligently activates them in the presence of undesirable bacteria. The world’s only liquid and organic form of silver, SILVADUR is compatible with both natural and synthetic fibers, as well as a broad range of additives and agents.

Technology
Chemistry based on a metal-ligand complexation

Developers
Dow Microbial Control
Dow Core R&D (Analytical Research)


Development Team

Dow SILVADUR development team (l-r): Fanwen Zeng, Ken Laughlin, Kireen Pareek, Jennifer Collin, Rick Strittmatter, Karel Williams, Nick Mitchell, Tirthankar Ghosh.

 










The SILVADUR Development Team
Tirthankar Ghosh, Principal Developer, Dow Microbial Control (The Dow Chemical Co.)
Jennifer Collin, Dow Microbial Control (The Dow Chemical Co.)
George Hazelton, Dow Microbial Control (The Dow Chemical Co.)
Kenneth Laughlin, Dow Core R&D (Analytical Research) (The Dow Chemical Co.)
Nick Mitchell, Dow Microbial Control (The Dow Chemical Co.)
Kireen Pareek, Dow Microbial Control (The Dow Chemical Co.)
Abigail Trueblood, Dow Microbial Control (The Dow Chemical Co.)
Ian Watt, Dow Microbial Control (The Dow Chemical Co.)
Fanwen Zeng, Dow Core R&D (Analytical Research) (The Dow Chemical Co.)

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