Detoxification of carbamate pesticides by halamine structures


Xin Fei, xfei@ucdavis.edu1, Takayuki Shibamoto2, Pengfei Gao, pcg9@cdc.gov3, and Gang Sun1. (1) Division of Textiles and Clothing, University of California, Davis, One Shields Avenue, Davis, CA 95616, (2) Department of Environmental Toxicology, University of California, One Shields Avenue, Davis, CA 95616, (3) National Personal Protective Technology Laboratory, National Institute for Occupational Safety and Health, 626 Cochrans Mill Rd, Pittsburgh, PA 15236
Halamines are compounds containing N-Cl or N-Br structures and widely used as disinfectants for swimming pools and recreation water. These compounds are able to oxidize many toxic compounds including pesticides. In recent years, halamine containing fabrics possessing durable and rechargeable biocidal properties were developed. A preliminary study of using the halamine fabrics in detoxifying certain pesticides has produced some interesting results, showing that several carbamates were decomposed rapidly by contact. Recent developments in halamine materials have resulted in fabrics containing different halamine structures such as imide, amide, and amine halamine, in an order of oxidative reactivity. This reactivity will also affect the power of detoxification of toxic chemicals. In order to systematically understand the detoxifying mechanisms of halamine fabrics, we have performed a pesticide detoxifying study using different halamine compounds. This presentation will discuss our latest results in this study.

General Poster Session
2:00 PM-4:00 PM, Tuesday, 15 March 2005 Convention Center -- Hall D, Poster

8:00 PM-10:00 PM, Monday, 14 March 2005 Convention Center -- Sails Pavilion, Sci-Mix

Division of Agrochemicals

The 229th ACS National Meeting, in San Diego, CA, March 13-17, 2005