Plastic and nonmetallic article shaping or treating: processes – Encapsulating normally liquid material – Liquid encapsulation utilizing an emulsion or dispersion to...
Patent
1996-09-25
2000-02-08
Mullis, Jeffrey
Plastic and nonmetallic article shaping or treating: processes
Encapsulating normally liquid material
Liquid encapsulation utilizing an emulsion or dispersion to...
264 43, 264 433, 264 46, 264 47, 4272133, 42721331, 42721334, 42721336, 427215, B01J 1304, B01J 1320, B01J 1308, B01J 1316
Patent
active
060225009
ABSTRACT:
A process is described for the enzyme catalyzed synthesis of polymeric microspheres from monomers such as ethylphenol, naphthols and hydroxypyrenes in reverse micelles in the presence of a detergent. Polymeric microspheres synthesized are porous with nonuniform densities. Polymers prepared from naphthols and hydroxypyrenes are fluorescent with electroluminescent properties. A number of materials such as enzymes, drugs and inorganic materials such as iron oxide and cadmium sulfide are encapsulated in the hollow polymeric microspheres synthesized. These encapsulations are carried out during or after the syntheses of the polymeric microspheres. Functional properties of the encapsulated materials such as enzyme, magnetic and nonlinear optical properties are demonstrated in the polymeric composites.
REFERENCES:
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Rao, M., Gonzalez, R.D., John, V.T., Kaplan, D., Akkara, J., "Catalytic and Interfacial Aspects of Enzymatic Polymer Synthesis in Reversed Micelles", Biotechnol. Bioeng., 41, 531 (1993).
Akkara, J.A., Ayyagari, M., Bruno, F., Samuelson, L., John, V.T., Karayigglu, C., Tripathy, S., Marx, K., Rao, D.V.G.L.N., Kaplan, D.L., "Biomimetic Membrane and Interface Templates for Enzyme-Based Polymerization Reactions", Biomimetrics, 2, 331 (1994).
Akkara, J.A., Kaplan, D.L., Tripathy, S.K., John, V.T., "Enzyme-Catalyzed Polymerization", in The Polymeric Materials Encyclopedia: Synthesis, Properties and Applications, Salamone, J. Ed., vol. 3, CRC Press, (1996) pp. 2115-2125.
Akkara Joseph A
John Vijay T
Kaplan David L
McPherson Gary L
Mullis Jeffrey
Ranucci Vincent J.
The United States of America as represented by the Secretary of
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