A novel method of cell immobilization is described. The cell support consists of ceramic microspheres of approximately 50-75 microns diameter. The spheres are hollow, having a wall thickness of 10-15 microns and one entrance (ca. 20 microns diameter). The walls are porous with a mean pore size of approximately 90 nm. When a cell suspension (of S. cerevisiae) is passed through a column of such p...

Surface biofunctionalization aims to create cell-instructive surfaces that control the behavior of cells and modulate cellular interactions by incorporating cell signaling moieties at materials–biosystem interface. Despite advances in developing bioinert biocompatible materials, blood clotting, inflammation, death continue be observed upon contact foreign materials with living tissues leading m...

    Sucrose hydrolysis was carried Out by Saccharomyces strains. The effective rate of reaction was examined experimentally for 5 different Saccharomyces strains. Two Strains of Schizosaccharomyces and Saccharomyces Carlsbergensis showed the best invertase activity. These two strains showed Michaelien Kinetics in the sucrose concentration up to 0.2 M and inhibitory effect in the concentration b...

14.2 Mimicking the ECM 317 14.2.1 Covalent immobilization of ECM-derived proteins and growth factors through reaction of amino acid side chains 319 14.2.2 Immobilization of growth factors through interactions with other biomolecules 322 14.2.3 Protein/peptide tags for immobilization 326 14.2.3.1 Collagen-binding domain-mediated immobilization 326 14.2.3.2 Factor XIIIA transglutaminase catalyzed...

Various cellular signaling pathways, such as phosphatidylinositol 3-kinase, calcineurin, Janus kinase 2/signal transducer and activator of transcription 3 (STAT3), and mitogen-activated protein kinase (MAPK) have been suggested to play an important role in skeletal muscle growth. Old muscle, compared with young muscle, lacks the ability to completely regrow its muscle mass after an atrophy-indu...

Controlled cross-linking of IgE-receptor complexes on the surface of rat basophilic leukemia cells and mast cells has allowed a comparison of the lateral mobility and cell triggering activity of monomers, dimers, and higher oligomers of receptors. Addition of a monoclonal anti-IgE(Fc) antibody to IgE-sensitized cells in stoichiometric amounts relative to IgE produces IgE-receptor dimers with hi...

Photolithography combined with surface nucleated protein self-assembly of azido-modified spider silk proteins is used to create an arbitrarily shaped, inherently cell repellent micropattern based on nanofibrillar networks. Using “click” chemistry dibenzocyclooctin modified oligonucleotides, the microstructures are functionalized DNA-aptamers, which selectively bind cancer markers tyrosine kinas...