Polysaccharide Biobased Materials Center - News http://www.polysaccharidecenter.com/ Recent news highlights Thu, 16 Nov 2006 18:37:00 GMT en-us Environmentally friendly aqueous viscosified treatment fluids and breakers for oil drilling http://www.polysaccharidecenter.com/index.html#mud http://www.polysaccharidecenter.com/index.html#mud Sun, 30 Mar 2008 12:00:00 GMT Thixotropic (shear-thinning) well treatment fluids are made with guar and xanthan gum biopolymers. Prior to oil production, the viscosity of the fluids can be reduced with oxidants and environmentally friendly activators. Modifying cellulose surfaces with the help of xyloglucan http://www.polysaccharidecenter.com/index.html#XG http://www.polysaccharidecenter.com/index.html#XG Mon, 21 Jan 2008 12:00:00 GMT Xyloglucan has a unique ability to mediate surface modification of cellulose to produce new functional properties.