Abstract: An article has a surface topography for resisting bioadhesion of organisms and includes a base article having a surface. A composition of the surface includes a polymer. The surface has a topography comprising a pattern defined by a plurality of spaced apart features attached to or projected into the base article. The plurality of features each have at least one microscale dimension and at least one neighboring feature having a substantially different geometry. An average feature spacing between adjacent ones of the features is between 10 ?m and 100 ?m in at least a portion of the surface. The surface topography can be numerically represented using at least one sinusoidal function. In one embodiment, the surface can comprise a coating layer disposed on the base article.

Abstract: A coated surface for resisting or enhancing bioadhesion includes at least one patterned polymer including coating layer having a plurality of features attached to or projected into a base surface. The features each have at least one microscale (<1 mm) dimension and have at least one neighboring feature having a substantially different geometry. The patterned coating layer preferably provides an average roughness factor (R) of from 4 to 50. The coating layer resists or enhances bioadhesion as compared to the base surface.

Abstract: A method of destroying target microorganisms comprises the step of contacting at least one target microorganism with at least one low molecular weight silanol end group containing molecule. The silanol containing molecule is selected from silanols (R1R2R3SiOH), siloxanediols HO(R1R2SiO)nH or siloxanols HO(R1R2SiO)nSiR1R2R3, where R1, R2 and R3 are selected from 1 to 4 carbon alkyl or fluoroalkyl moieties, or vinyl, or aryl groups and n is <6 . The silanol end group containing molecule can be triethylsilanol, diphenylmethylsilanol, t-butyldimethylsilanol, n-butyldimethylsilanol, n-propyldimethylsilanol, ethyldimethylsilanol, vinylphenylmethylsilanol, phenyldimethylsilanol, 3,3,3 trifluoro propyldimethylsilanol, benzyldimethylsilanol and phenethyldimethylsilanol, or mixtures thereof. A composition of matter includes a silanol end group containing molecule according to the invention blended with a polymer or dissolved in aqueous solution along with an ether-based cosolvent.

Abstract: A method of homogeneously forming functionalized biocompatible oligomers includes the steps of dissolving a biocompatible oligomer in a solvent to form a solution, and admixing at least one ? complex forming group to the solution, wherein the ? complex forming group grafts to at least one location on the backbone of the oligomer to form a grafted oligomer. The oligomer is preferably oligochitosan and the solvent is preferably dimethylsulfoxide (DMSO). The degree of graft substitution can be at least 50%. The functionalized biocompatible oligomer can be used for drug detoxification through binding to a variety of target drugs.

Abstract: A dynamic coating includes at least one polymeric layer for attachment to a surface. The polymeric layer includes at least one electrically conducting polymer including layer, wherein under influence of a dynamic signal applied to the polymeric layer, a contact angle of the polymeric layer dynamically and substantially increases or decreases upon oxidation or reduction of the polymer. The polymeric layer can also expand or contract upon oxidation or reduction. The coating can be used for a variety of applications including a non-toxic biofouling preventative system and for forming low voltage electrowetting pumps.

Abstract: A method of forming SiBCN-based preceramic polymers or oligomers reacts a disilazane having the general formula (R3Si)2NH, where R is selected from the group consisting of vinyl, hydrogen, phenyl, and alkyls containing 1 to 3 carbon atoms with a boron halide including at least two halides, and a halosilane including at least two halogens at a temperature of between 125 C and 300 C. Upon partial pyrolysis, a partially pyrolyzed preceramic polymer or oligomer useful for burnable poison rod assemblies and spent fuel containers can be formed which provides hydrothermal stability and includes at least 3 wt % hydrogen.