The volume changes produced by the reaction of bovine plasma albumin with thiocyanate and trichloroacetate ions differed substantially from each other and from those produced by sodium dodecyl sulfate (KATZ, S., SHAW, M. E., CHILLAG, S., AND MILLER, J. E. (1972) /. Biol. Chem., 247, 5528-5233). The volume effects attributable to proteinanion interaction, W, resulting from the interaction of thi...

In Nitella the protoplasm forms a layer about 15 microns thick surrounding a large central vacuole. The outer part of the protoplasm is a gel, the inner layer is a sol which is in continual motion travelling the entire length of the cell in opposite directions on opposite sides and thus making a complete circuit (cyclosis). If we have a cell devoid of motion and if we regard the protoplasm in a...

Theoretical investigations into the stability of electrified liquid drops take as their starting point a result due to Rayleigh. It was felt that this result is important enough to warrant a more complete derivation than that originally given by Rayleigh in the reference which is usually quoted. A literature search revealed a second paper of Rayleigh’s which is never quoted, but which contains ...

An isothermal energy balance is formulated for a system consisting of deformable dielectric bodies, electrodes, and the surrounding space. The formulation in this paper is obtained in the electrostatic limit but with the possibility of arbitrarily large deformations of polarizable material. The energy balance recognizes that charges may be driven onto or off of the electrodes, a process accompa...

Over recent years there has been a tendency to target the development of chiral materials for use in healthcare treatments. In such applications and therapies the optical purity is an important factor to consider. Two common materials, that have relevance in bio-medical applications, and which are available in their chiral and racemic forms are menthol and ibuprofen. In this article we quantita...

Lipid membranes are insulators and capacitors, which can be charged by an external electric field. This phenomenon plays an important role in the field of electrophysiology, for instance when describing nerve pulse conduction. Membranes are also made of polar molecules meaning that they contain molecules with permanent electrical dipole moments. Therefore, the properties of membranes are subjec...

By employing recent results (Lopez-Pamies, O., 2014, “Elastic Dielectric Composites: Theory and Application to Particle-Filled Ideal Dielectrics,” J. Mech. Phys. Solids, 64, p. 6182 and Spinelli, S. A., Lefèvre, V., and Lopez-Pamies, O., “Dielectric Elastomer Composites: A General Closed-Form Solution in the Small-Deformation Limit,” J. Mech. Phys. Solids, 83, pp. 263–284.) on the homogenizatio...