We have purified an actin binding protein from amebas of Dictyostelium discoideum which we call 95,000-dalton protein (95K). This protein is rod shaped, approximately 40 nm long in the electron microscope, contains two subunits measuring 95,000 daltons each, and cross-links actin filaments. Cross-linking activity was demonstrated by using falling-ball viscometry, Ostwald viscometry, and electro...

Viscosity has always been a critical property of lubricants. It is the source of the hydrodynamic lubrication that separates lubricated surfaces moving past one another under pressure and thus is a major factor in reducing wear. On the other hand, viscosity is also a form of friction – viscous friction – and, as it absorbs energy, viscosity reduces the efficiency of the engine even as it protec...

In this work, we develop a proxy high-throughput viscometer for Newtonian fluids with viscosities between 1500 and 12 000 cP.