Banner for LabNotes
From Lab Notes
Contact Information
Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592


You are here: FPL Home  / Information Products & Services  / Publications

Requested Product

Title: Feasibility of Nanozinc Oxide as a Wood Preservative

Source: In: Proceedings One Hundred fifth annual meeting of the American Wood Protection Association, Hyatt Regency Riverwalk, San Antonio, Texas; April 19-21, 2009 Volume 105, pp. 255-260, 2009

Author(s)Clausen, Carol A.; Yang, Vina W.; Arango, Rachel A.; Green, Federick III

Publication Year: 2009  View PDF »

Category: Conference Proceedings
Associated Research Project(s):   FPL-4723-4

Abstract: Nanometals have the potential to affect the field of wood preservation through the development of new and improved biocides with unique properties. A preliminary study on nanometals suggested that 1 % nanozinc oxide was leach resistance, caused moderate termite mortality, inhibition of termite feeding and inhibition of decay by Trametes versicolor. In this study, Southern yellow pine and yellow poplar vacuum-treated with 2.5% and 5.0% nanoZnO were evaluated for leaching, mold and decay inhibition, termite resistance, and visible signs of weathering. Virtually no leaching occurred at any treatment concentration of nanozinc oxide. All concentrations of nanoZnO showed inhibition of termite feeding, (i.e. low mass losses) and 31%-35% mortality. Only the highest concentration of nanoZnO resulted in moderate inhibition of mold growth (20-32% coverage). Decay inhibition was variable. NanoZnO did not inhibit brown-rot test fungi as well as soluble ZnSO4, Weight loss for the white-rot fungus was inhibited by all concentrations of nanoZnO tested. Specimens treated with nanoZnO demonstrated UV protection after 8 weeks of weathering. Overall, nanoZnO has desirable wood protection properties, namely leach resistance, UV protection and termite resistance, but would not provide adequate protection against decay or mold as a stand alone treatment.

Keywords: Nanozinc; nanometals; decay; wood preservation; mold; termite; weathering; zinc oxide; nanoparticles; nanostructured materials; nanotechnology; metallic oxides; deterioration; wood preservatives; testing; preservative treated wood; molds; fungi; mold prevention; preserved wood; Trametes versicolor; insecticides; insect pests; insect control; biodegradation; wood-decaying fungi; leaching; ultraviolet radiation; zinc sulfate; Liriodendron tulipifera; preservatives; yellow-poplar; treated wood; nanozinc oxide; nanometals; biocides; decay fungi; wood decay; southern yellow pine; resistance to decay; termite control

Publication Review Process: Non-Refereed (Other)

File size: 386 kb(s)

Date posted: 05/17/2010
RITS Product ID: 35761
Current FPL Scientists associated with this product (listed alphabetically)
Clausen, Carol A.
Supervisory Research Microbiologist
Green, Frederick
Research Microbiologist

Additional items that might interest you
View the video celebrating FPL's 100 years of public service in 2010, from the producers of the Greatest Good....view

Research Highlights from FPL....view

Termite Eradication: A search for the Holy Grail.... view

Moisture Management in Residential Construction Series videos...view

Wood Floor Systems in Residential Construction Series videos....view
- FPL's Mission and Strategic Plan -

FPL's mission is to identify and conduct innovative wood and fiber utilization research that contributes to conservation and productivity of the forest resource, thereby sustaining forests, the economy, and quality of life. ... ..more »

- FPL Research Emphasis Areas -
Advanced Composites

As an integral part of the FPL mission, we improve the long-term sustainability of our Nation's forests by creating valuable composite products from biobased materials ... ..more »

Advanced Structures

The FPL has been in the forefront of wood-frame housing research since 1910 and has long been recognized as a world leader in such housing-related areas as engineered wood ... ..more »

Forest Biorefinery

We all know the compelling reasons that the United States needs to reduce its dependence on fossil fuels. Historically, the greatest increases in energy demand have been for transportation fuels ... ..more »


A leader in wood products research for over a century, the FPL is positioning itself to become the lead Federal research facility for the application of nanotechnology in forest products ... more »

Woody Biomass Utilization

Forests in the United States contain a substantial amount of small-diameter, overstocked, and underutilized material.FPL research projects are exploring the potential of the small-diameter ... ..more »