Electrical potential differences across the foetal membranes of the rabbit.

On the Origin of the Membrane Potential Arising Across Densely Charged Ion Exchange Membranes: How Well Does the Teorell-Meyer-Sievers Theory Work?

A difference in salt concentration in two solutions separated by a membrane leads to an electrical potential difference across the membrane, also without applied current. A literature study is presented on proposed theories for the origin of this membrane potential (ϕm). The most well-known theoretical description is Teorell-Meyer-Sievers (TMS) theory, which we analyze and extend. Experimental ...

Protein transmission across the rabbit foetal membranes.

Using Xenogenic (Calf Foetal) Osteochondral Transplantation for Articular Cartilage Defect in Rabbit Model

Background: The destruction of articular cartilage is the major cause of articular problems. The articular cartilage has little repair postertial due to lack of perichondrium and direct blood circulation. It is, therefore important to consider this phenomena in surgical treatments. One of the articular cartilage reconstructive surgeries is using Osteo-Chondral graft. The main purpose of this re...

تفاوتهای ناحیه ای در نقش جریان یونی if در تولید پتانسیلهای پیس میکری سلولهای گره سینوسی – دهلیزی دست نخورده و سالم قلب خرگوش

Background: The sinoatrial (SA) node is not a uniform tissue in terms of its histology and electrophysiology. The regional differences in action potential configuration are well known, for which the difference on ionic currents underlying the regional differences in electrical activity is the most probable cause. The ionic current "if" is though to play a major role in SA node for pace maker sl...

Study the Transport Properties of Anion and Cation Exchange Membranes toward Various Ions Using Chronopotentiometry

The transport properties of various anion and cation exchange membranes were studied in different electrolyte solutions using chronopotentiometry technique to get insight about the influence of the counter ion on the transport properties of the membranes. The investigated samples include heterogeneous ion exchange membranes varying in the functionality of fixed charged gro...