electro-, electr-, electri-
(Greek > Latin: electric, electricity; from amber, resembling amber, generated from amber which when rubbed vigorously [as by friction], produced the effect of static electricity)
Electronics in our lives consists of numerous tools
Equipment which we use everyday relies on electronics to function including calculators, car controls, cameras, washing machines, medical scanners, mobile telephones, radar systems, computers; as well as many other applications or devices which are listed in this unit.
2. A method of separating substances, especially proteins, and analyzing molecular structure based on the rate of movement of each component in a colloidal suspension while under the influence of an electric field.
Electrophoretic methods are useful in the analysis of protein mixtures because protein particles move with different velocities depending principally on the number of charges carried by the particles.3. The movement of charged suspended particles through a liquid medium in response to changes in an electric field.
Charged particles of a given substance migrate in a predictable direction and at a characteristic speed.
The pattern of migration can be recorded in bands on an electrophoretogram.
This technique is extensively used to separate and to identify serum proteins and other substances.
2. A term for a broad range of industrial processes including colloidal particles suspended in a liquid medium that migrate under the influence of an electric field (electrophoresis) and which are deposited onto an electrode.
All colloidal particles that can be used to form stable suspensions and which can carry a charge, can be used in electrophoretic deposition. This includes materials such as polymers, pigments, dyes, ceramics and metals.
2. A liquid crystal display in which a light-absorbing dye has been added to the liquid to improve both color and luminance contrast.
Individual electrically charged dye particles move when an electric field is applied.3. A reflective display which offers a wide choice of colors and has a short-to-medium-term memory which consumes no power.
The heart of the display is a suspension of charge pigment particles in a liquid of another color.
The suspension, a layer typically 50 micrometers thick, is sandwiched between a pair of electrodes, one of which is transparent.
When direct current of the right polarity is applied to the electrodes, the particles are pulled toward the transparent electrode thus displacing the contrasting liquid and showing their own coloration.
2. A retarding effect on the characteristic motion of an ion in an electrolytic solution subjected to a potential gradient, that results from a motion in the opposite direction by the ion atmosphere.
2. A characteristic of living cells in suspension (a dispersion of fine solid or liquid particles in a fluid) and biological compounds (proteins) in a solution to travel in an electric field to the positive or negative electrode, because of the charge on these substances.
2. Physical and biochemical characteristics of an organism as determined by the interaction of its genetic constitution and the environment of the different proteins which are separable into distinct electrophoretic components because of the differences in mobilities.
One example is erythrocyte acid phosphatase.
The term erythrocyte refers to a blood cell that carries oxygen from the lungs to the body tissues; while, the term phosphatase is an enzyme that catalyzes the hydrolysis and synthesis of phosphoric acid esters (organic compounds that can react with water to produce an alcohol and an organic or inorganic acid) and the transfer of phosphate groups from phosphoric acid to other compounds.
2. The velocity of a charged particle during electrophoresis.
It is normally proportional to an electric field of strength.
2. A generator which produces small amounts of static electricity by induction.
3. An instrument used to produce electric charges by induction.
It consists of a hard-rubber disk, that is negatively charged by rubbing with fur, and a metal plate, held by an insulating handle, which is placed on the disk.
The plate is then touched with a grounded conductor, so that the negative charge is removed and the plate has a net positive charge.
It uses electrostatic charges, dry ink (toner) and light to produce images on paper.
Examples are processes employing selenium-coated drums or zinc-oxide-coated paper.
2. A kind of photography using electric rather than chemical processes to transfer an image onto paper, as in xerography.
3. An electrostatic image-forming process in which light, X-rays, or gamma rays form an electrostatic image on a photoconductive, insulating medium.
The charged image areas attract and hold a fine powder called a toner, and the powder image is then transferred to paper or fused there by heat.
Electrophotography now includes both xerography and xeroradiography.