October 6, 2010, a bicycle path in Des Moines, Iowa, was paved with bio-oil based asphalt through a partnership between Iowa State University, the City of Des Moines, and Avello Bioenergy Inc. Research is being conducted on the asphalt mixture, derived from plants and trees to replace petroleum-based mixes. Bioasphalt is a registered trademark of Avello Bioenergy Inc. Dr. Elham H. Fini, at North Carolina A&T University, has been spearheading research that has successfully produced bio asphalt from swine manure. Since November 2014 the Dutch Wageningen University & Research centre is running a pilot in the Dutch province of Zeeland with bioasphalt in which the binder of bitumen was substituted by lignin. In 2015, French researchers published their results about the usage of microalgaes as a source of asphalt binding material. See also Asphalt References Biomass Building materials Recycled building materials Pavements Chemical mixtures Amorphous solids