Tunable Surfaces and Films from Thioester Containing Microparticles

Shape-tunable core-shell microparticles.

Colloidal polymer particles are an important class of materials finding use in both everyday and basic research applications. Tailoring their composition, shape, and functionality is of key importance. In this article, we describe a new class of shape-tunable core-shell microparticles. They are composed of a cross-linked polystyrene (PS) core and a poly(methyl methacrylate) (PMMA) shell of vary...

Dewatering of MNFC containing microfibrils and microparticles from soybean hulls: mechanical and transport properties of hybrid films

Cellulosic microfibrils (SMF) and microparticles (SMP) extracted from soybean hulls were used in films and also combined with woodbased micro and nanofibrillar cellulose (MNFC) in hybrid systems. During film consolidation a remarkable reduction in water drainage was observed in the presence of SMF and SMP. The hybrid films displayed strength (elastic modulus and strength at rupture) and barrier...

Hydrodynamic repulsion of spheroidal microparticles from micro-rough surfaces

Isolation of microparticles and biological cells from mixtures and suspensions is a central problem in a variety of biomedical applications. This problem, for instance, is of an immense importance for microfluidic devices manipulating with whole blood samples. It is instructive to know how the mobility and dynamics of rigid microparticles is altered by the presence of micrometer-size roughness ...

Deposition of Boron-Containing Films From Decaborane

Tunable dual growth factor delivery from polyelectrolyte multilayer films.

A promising strategy to accelerate joint implant integration and reduce recovery time and failure rates is to deliver a combination of certain growth factors to the integration site. There is a need to control the quantity of growth factors delivered at different times during the healing process to maximize efficacy. Polyelectrolyte multilayer (PEM) films, built using the layer-by-layer (LbL) t...