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A blood substitute (also called artificial blood or blood surrogate) is a substance used to mimic and fulfill some functions of biological blood. It aims to provide an alternative to blood transfusion , which is transferring blood or blood-based products from one person into another.
[citation needed] Jet fuel is an example of a fuel requiring a surrogate for experimental research and numerical modelling due to its complexity and high content variability from one batch to the next. [1] [non-primary source needed] Neat hydrocarbon jet fuel surrogate components include decane, dodecane, methylcyclohexane, and toluene.
Carrier and channel ionophores (a) Carrier ionophores reversibly bind ions and carry them through cell membranes. (b) Channel ionophores create channels within cell membranes to facilitate the transport of ions. In chemistry, an ionophore (from Greek ion and -phore 'ion carrier') is a chemical species that reversibly binds ions. [1]
Carrier mobility strongly depends on the concentration of localized states in a non-linear fashion. [2] In the case of nearest-neighbour hopping , which is the limit of low concentrations, the following expression can be fitted to the experimental results: [ 3 ]
Carrier generation describes processes by which electrons gain energy and move from the valence band to the conduction band, producing two mobile carriers; while recombination describes processes by which a conduction band electron loses energy and re-occupies the energy state of an electron hole in the valence band.
Free carrier concentration is the concentration of free carriers in a doped semiconductor. It is similar to the carrier concentration in a metal and for the purposes of calculating currents or drift velocities can be used in the same way. Free carriers are electrons that have been introduced into the conduction band (valence band) by doping ...
The most common form of surrogacy is called "gestational surrogacy," in which the surrogate is formally referred to as a "gestational carrier." In this scenario, which was first introduced in the ...
Chemical structure of dextran. Dextran drug delivery systems involve the use of the natural glucose polymer dextran in applications as a prodrug, nanoparticle, microsphere, micelle, and hydrogel drug carrier in the field of targeted and controlled drug delivery.
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