An artificial membrane, also called a synthetic membrane, is a membrane prepared for separation tasks in laboratory and industry. Its active part, which permits selective transport of material, usually consists of polymers or ceramics, seldom glass or metals. A membrane may contain auxiliary parts for mechanical support, drainage, patch etc. Michael Faraday, 19th century physicist and chemist, in his lab. ... Polymer is a term used to describe large molecules consisting of repeating structural units, or monomers, connected by covalent chemical bonds. ... Fixed Partial Denture, or Bridge The word ceramic is derived from the Greek word κεραμικος (keramikos, potters earth, or pottery). The term covers inorganic non-metallic materials whose formation is due to the action of heat. ... Glass can be made transparent and flat, or into other shapes and colors as shown in this sphere from the Verrerie of Brehat in Brittany. ... Hot metal work from a blacksmith In chemistry, a metal (Greek: Metallon) is an element that readily forms positive ions (cations) and has metallic bonds. ...

The driving force of the material transport is given by concentration, pressure, electrical or chemical gradient across the membrane. Membranes can be prepared in the form of flat sheets, tubes, capillaries and hollow fibres. Membranes are built in membrane systems like plate and frame, spiral-wound module, hollow fibre module, tube-in-shell module. Some of the most common artificial membranes are polymeric membranes. Under some conditions ceramic membranes can be utilized with advantage. In chemistry, concentration is the measure of how much of a given substance there is mixed with another substance. ... The use of water pressure - the Captain Cook Memorial Jet in Lake Burley Griffin, Canberra. ... Lightning strikes during a night-time thunderstorm. ... A chemical substance is any material substance used in or obtained by a process in chemistry: A chemical compound is a substance consisting of two or more chemical elements that are chemically combined in fixed proportions. ... Polymeric membranes - Wikipedia, the free encyclopedia /**/ @import /skins-1. ... Ceramic membranes are made from inorganic metarials (such as alumina, titania, zirconia oxides or some glassy materials) and they are used in membrane operations. ...

Such membranes are employed in a wide range of membrane operations, such as microfiltration, ultrafiltration, reverse osmosis, pervaporation, gas separation, dialysis or chromatography. The applications depend on the type of functionality incorporated in the membrane, which can be based on size-exclusion, chemical affinity or electrostatics. Membrane operation or membrane process is considered like an unit operation in chemical engineering. ... Microfiltration is a filtration process which removes contaminants from a fluid or gas by passage through a microporous membrane. ... A selectively membrane can be mounted in a centrifuge tube. ... Reverse osmosis is the process of pushing a solution through a filter that traps the solute on one side and allows the pure solvent to be obtained from the other side. ... Pervaporation is a method for the separation of mixtures of liquids by partial vaporization through a non-porous membrane. ... Gas mixtures can be effectively separated by synthetic membranes. ... In medicine, dialysis is a type of renal replacement therapy which is used to provide an artificial replacement for lost kidney function due to renal failure. ... what tyler Kyle A chemist is shown using column chromatographic apparatus in the mid-1950s to separate constituents in a coal tar color analysis Pictured is a sophisticated gas chromatography system. ... Chemical affinity results from electronic properties by which dissimilar substances are capable of forming chemical compounds. ... Electrostatics is the branch of physics that deals with the forces exerted by a static (i. ...

Typical applications in which membranes have been used are water purification, removal of microorganisms in dairy products, water desalination, dehydrogenation of natural gas, hemodialysis or as components of fuel cells. Water purification is the removal of contaminants from raw water to produce drinking water that is pure enough for human consumption or for industrial use. ... A microorganism or microbe is an organism that is so small that it is microscopic (invisible to the naked eye). ... Dairy products are generally defined as foodstuffs produced from milk. ... Water is a tasteless, odourless substance that is essential to all known forms of life and is known as the universal solvent. ... Desalination refers to any of several processes (e. ... Hydrogenation is a chemical reaction in which unsaturated bonds between carbon atoms are reduced by attachment of a hydrogen atom to each carbon. ... Natural gas is a gaseous fossil fuel consisting primarily of methane. ... A hemodialysis machine In medicine, hemodialysis, also haemodialysis, is a method for removing waste products such as potassium and urea, as well as free water from the blood when the kidneys are incapable of this (i. ... A fuel cell is an electrochemical device similar to a battery, but differing from the latter in that it is designed for continuous replenishment of the reactants consumed; i. ...

See also: Membrane