Microparticles, preparation thereof and applications thereof in biology, particularly in the culture of human diploid cells
First Claim
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1. Microparticles comprising particles or beads whose surface at least is formed from a reticulated protein, chosen from protein capable of forming a visco-elastic mass which after reticulation has a fibrous-type structure in a mesh network configuration.
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Abstract
These microparticles are formed, at least on their surface, from a reticulated protein. (FIG. 1).
33 Citations
48 Claims
- 1. Microparticles comprising particles or beads whose surface at least is formed from a reticulated protein, chosen from protein capable of forming a visco-elastic mass which after reticulation has a fibrous-type structure in a mesh network configuration.
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37. A process for preparing microparticles or beads useful as microcarriers for the culture of normal human or animal diploid cells or said cells infected by a virus or a cellular parasite comprising contacting particles having a diameter of the order of 40 to 200 μ
- m, formed of protein capable of forming a viscoelestic mass which after reticulation has a fibrous-type structure in a mesh network configuration, with a solution of a multifunctional reticulation agent to react with the protein,
separating the thus reticulated protein particles from the solution of reticulation agent and contacting the reticulated protein particles with said protein to block the functional groups of the reticulation agent not engaged in the reticulation reaction. - View Dependent Claims (39, 40, 41, 42, 43, 44)
- m, formed of protein capable of forming a viscoelestic mass which after reticulation has a fibrous-type structure in a mesh network configuration, with a solution of a multifunctional reticulation agent to react with the protein,
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38. A process for preparing microparticles or beads useful as microcarriers for the culture of normal human or animal diploid cells or said cells infected by a virus or a cellular parasite comprising contacting a suspension of particles having a diameter of the order of 40 to 200 μ
- m with a solution of a protein to coat said particles with said protein, wherein said protein is capable of forming a viscoelastic mass which after reticulation has a fibrous-type structure in a mesh network configuration and said particles are formed of material capable of providing an anchoring nucleus for said protein,
contacting the protein coated particles with a solution of a multifunctional reticulation agent to react with the protein coating the surface of said particles, separating the particles coated with thus reticulated protein from the solution of reticulation agent and contacting the particles with said protein to block the functional groups of the reticulation agent not engaged in the reticulation reaction. - View Dependent Claims (45, 46, 47, 48)
- m with a solution of a protein to coat said particles with said protein, wherein said protein is capable of forming a viscoelastic mass which after reticulation has a fibrous-type structure in a mesh network configuration and said particles are formed of material capable of providing an anchoring nucleus for said protein,
Specification