Membrane

A membrane ( rare membrane over late Middle High German Membrane " parchment " from Latin membrana " cuticle ", a derivative of membrum " limb " ) is a thin layer of a material which is suitable for the transport of certain substances through this layer to affect. Occur both in biology as well as in the art membranes in the most diverse applications and features. Any biological cell is surrounded by a semipermeable membrane, life in its present form would not be possible without membranes as a separation layer. In the art to use membranes as the separation layer in the membrane art.

Membranes have the property of absorbing tensile forces only under a load and be able to pass on to their edges. This state is called a membrane and the membrane state of stress. An example of this condition provides a soap bubble.

In terms of their permeability membranes can be used as

• Impervious ( impermeable )
• Partially opaque ( semi-permeable or selectively permeable )
• In one direction permeable (unidirectional permeable )
• Permeable ( omnipermeabel )

Be characterized.

Examples of membranes

• Biomembrane
• Basement membrane
• Dialysis membrane
• Liquid membrane