Patent No. US 6,790,460 B2: Research-ers for Salvona-IP LLC, Dayton, NJ, patented a controlled-release delivery system containing solid nano-particles with a core of carnauba wax and a surface of a bio-adhesive, positively-charged cetylpyridinium chloride surfactant. The biodegradable particles are delivered to biological surfaces in the oral cavity or mucous membranes.
Salvona Patents Oral Care Nano-Particles
Published November 22, 2005
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