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Biomedical subjects

H J Gensrich

Publications and source records attributed to H J Gensrich.

5 recordsLinked to original sources
PubMed1989

[Cellulose implants--biostability and tissue reaction].

In order to test blood detoxication systems on cellulose basis (hollow fibers as separation material) histomorphological examinations were performed after incorporation in 10 rabbits. Already after 12 days granulation tissue around the cellulose fibers was found as foreign body reaction, but the implants remain uninjured up to 86 days. The lateral stability of the hollow fibers was unchanged. Further investigations are necessary on the radial stability and the transport properties of the cellulose fibers.

Animals↗
PubMed1983

[Experimental development of hollow cellulose membranes for blood detoxification].

In recent years there have been repeated demands in medical circles for new membranes for various purposes. At present attention is focussed on the development of membranes for the detoxification of blood. Using available technology and resources, it seemed appropriate to develop such hollow membranes out of cellulose by the viscose process. It is possible to give the membrane a suitable structure according to the use intended. The transport of matter and ultrafiltration can be influenced by varying the influence parameter in the spinning process via changes in the pore structure. In this way it is possible to produce hollow membranes for dialysis or ultrafiltration, with varying grades of permeability, out of cellulose by the viscose process.

Blood↗
PubMed1976

[Rheology and spinning of alkaline solution of field bean protein and casein].

From field bean protein and a mixture of field bean protein with casein to equal parts are prepared with sodium hydroxide high protein-containing alkaline solutions, which show pseudoplastic flow. The flow curves of the pseudoplastic field bean protein-casein (I:I)-solutions are described mathematically with the Ostwaldian power statement. In a suitable scope of spinning of this solutions are carried out complete factorial experiments, which guide to regression equations of lg k and n. g k depends on the concentration of protein; an effect of the sodium hydroxide concentration exists lonly about interactions. On the other hand the flow exponent n depends on the hydroxide concentration. The properties of the spun field bean protein/casein (I:I) fibres are described.

Caseins↗
PubMed1976

[Characterization and spinning of alkaline solutions of wheat protein and casein].

The viscosity behaviour of alkaline solutions of mixtures from different wheat glutens with casein in dependence on the concentration of the whole protein, wheat protein, sodium hydroxide, sodium chloride and on the temperature, time and the effect of treatment of wet wheat gluten with sodium chloride or sodium hydroxide on the properties of the spun wheat protein/casein fibers are described. Based on this model experiments the rheological behaviour of alkaline solutions of wheat protein/casein (I:2) and proceed from the parameters of the spinning process the properties of the corresponding spun fibers are represented.

Caseins↗