摘要:
An object of the present invention is to provide a method capable of producing a protein fiber in which shrinkage at the time of first contact with moisture after production is more reliably suppressed and generation of crimp is also suppressed. A method for producing a protein fiber according to the present invention includes: a pre-shrinking step of shrinking a protein fibril in a relaxed state after drawing and before being wound; a winding step of winding the protein fibril subjected to the pre-shrinking step to obtain a wound product; and a post-shrinking step of shrinking the protein fibril subjected to the winding step in a relaxed state.
摘要:
The present invention relates to a modified fibroin including a domain sequence represented by Formula 1: [(A) n motif-REP] m or Formula 2: [(A) n motif-REP] m -(A) n motif, in which the domain sequence has an amino acid sequence with a reduced content of a glutamine residue equivalent to an amino acid in which one or a plurality of glutamine residues in REP are deleted or substituted with other amino acid residues, as compared with a naturally occurring fibroin. [In Formula 1 and Formula 2, (A) n motif represents an amino acid sequence consisting of 4 to 27 amino acid residues, and the number of alanine residues with respect to the total number of amino acid residues in the (A) n motif is 80% or more. REP represents an amino acid sequence consisting of 10 to 200 amino acid residues, m represents an integer of 10 to 300. A plurality of (A) n motifs may be the same amino acid sequence or different amino acid sequences.]
摘要:
The invention relates to a functionalized silk fibroin security marker comprising one, two, three or more different security taggants selected from the group consisting of metallic particles, preferably metallic nanoparticles; magnetic particles, preferably magnetic nanoparticles; and peptide sequences, use of the inventive security marker within the substrate and/or on the surface of a security document, a functionalized security document comprising the inventive security marker as well as processes for manufacturing and authenticating the inventive functionalized silk fibroin security marker and inventive security document.
摘要:
The present invention relates to a process for the preparation of fibers and fibers prepared by the process. The process can provide discontinuous colloidal polymer fibers in a process that employs a low viscosity dispersion medium.
摘要:
A method and a combination for the cultivation of eukaryotic cells are provided, as well as a method for preparation of eukaryotic cells. The methods comprise providing a sample of eukaryotic cells to be cultured, applying said sample to a cell scaffold material; and maintaining said cell scaffold material having cells applied thereto under conditions suitable for cell culture. The combination comprises eukaryotic cells and a cell scaffold material. The cell scaffold material comprises a polymer of a spider silk protein.