Nanotechnology: A Novel Approach to Prevent Biocide Leaching
|URL:|| http://cfpub.epa.gov/ncer_abstracts/index.cfm/fuseaction/dis... |
|Description:||The primary objective of this proposal is to develop a practical and effective approach to prepare biocide-loaded nanoparticles (organic and copper-based biocides) that can be efficiently introduced into wood to reduce or eliminate biocide leach into sensitive environments. Preventing biocide loss to leach is also expected to increase the useful lifetime of wood products while using less biocide. To accomplish this objective the nanoparticle must be constructed to serve as a protective reservoir for the biocide that prevents its loss by leach or by degradation, but that also releases biocide into the wood in a controlled manner at a rate that maintains the minimal amount of biocide required within the wood for wood preservation.|
- 2005 Progress Report: Nanotechnology: A Novel Approach to Prevent Biocide Leaching
The overall objective of the research project is to show that introduction of biocides into controlled release nanoparticles will reduce the leaching of those biocides into the environment, thereby reducing negative environmental impact and increasing longevity of the treated wood with lesser amounts of biocide used. The rationale for this is that soluble biocides are rapidly depleted from wood structures, and this results in leaving the wood exposed to degradation and also in the release of the biocide into the environment where it can have negative impact. The methodology we are seeking to use in this work to adequately slow the release of soluble biocides is the introduction of the biocide into a core-shell nanoparticle, with a hydrophobic core designed to regulate the biocide release rate and a hydrophilic shell layer intended to stabilize the nanoparticles in a wood-treating suspension. The initial objectives for the summer of 2005 were to prepare several possible polymer compositions for the core-shell nanoparticles and to subsequently determine size and suitability for treating wood.
Below is a list of organizations with individual contacts that are funding this project.
Organizations Receiving Funding
Below is a list of organizations with individual contacts that are receiving funding for this project.
One East Hazelwood Drive; Champaign, IL; 61820; (800) 407-0261; firstname.lastname@example.org