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Biological functional properties biomedical devices

The realization of sensitive bioanalytical methods for measuring dmg and metaboUte concentrations in plasma and other biological fluids (see Automatic INSTRUMENTATION BlosENSORs) and the development of biocompatible polymers that can be tailor made with a wide range of predictable physical properties (see Prosthetic and biomedical devices) have revolutionized the development of pharmaceuticals (qv). Such bioanalytical techniques permit the characterization of pharmacokinetics, ie, the fate of a dmg in the plasma and body as a function of time. The pharmacokinetics of a dmg encompass absorption from the physiological site, distribution to the various compartments of the body, metaboHsm (if any), and excretion from the body (ADME). Clearance is the rate of removal of a dmg from the body and is the sum of all rates of clearance including metaboHsm, elimination, and excretion. [Pg.224]

Finally, for practical reasons it is useful to classify polymeric materials according to where and how they are employed. A common subdivision is that into structural polymers and functional polymers. Structural polymers are characterized by - and are used because of - their good mechanical, thermal, and chemical properties. Hence, they are primarily used as construction materials in addition to or in place of metals, ceramics, or wood in applications like plastics, fibers, films, elastomers, foams, paints, and adhesives. Functional polymers, in contrast, have completely different property profiles, for example, special electrical, optical, or biological properties. They can assume specific chemical or physical functions in devices for microelectronic, biomedical applications, analytics, synthesis, cosmetics, or hygiene. [Pg.5]

The zeta potential and surface conductance are functions of both interface and liquid properties and have significant influences on liquid flow. Lab-on-a-Chip devices have a wide range of applications in biomedical, chemical, environmental and biology areas, where a variety of liquid solutions and chip materials are involved. Each pair of solid-liquid interface has its unique zeta potential, specific surface conductivity, and electro-osmotic mobility, which makes the design and operational control of such devices very difficult and case specific. This requires the... [Pg.436]


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Biological functional properties

Biological functionalization

Biological properties

Biological/biomedical properties

Biology functional

Biomedical devices

Device function

Device properties

Functional biological

Functional properties

Functions biological

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