Corn stover is a better feedstock economically than switchgrass for cellulosic ethanol produced in Indiana, according to a study by researchers at Purdue University.

A newly created microbe produces cellulose that can be turned into ethanol and other biofuels, report scientists from The University of Texas at Austin who say the microbe could provide a significant portion of the nation's transportation fuel if production can be scaled up.

The thin films grown on cellulose and chitin consist of only calcite, while those grown on chitosan mainly consist of vaterite. The polymorphs of the thin films developed on chitosan are dependent on the concentrations of poly(acrylic acid) in the solution. Poly(acrylic acid) with a higher molecular weight leads to the deposition of thin-film crystals consisting of less stable polymorphs on these polymer matrixes.