Abstract: Many next-generation biomaterials will need the ability to not only promote healthy tissue integration but to simultaneously resist bacterial colonization and resulting biomaterials-associated infection. For this purpose, antimicrobial nanofibers of polycaprolactone (PCL) were fabricated by incorporating calcium peroxide. PCL nanofibers containing different ratios of calcium peroxide (1%, 5% and 10% (w/w)) with or without ascorbic acid were fabricated using an electrospinning technique. Antimicrobial evaluations confirmed the inhibitory properties of the nanofibers on the growth of E. coli and S. epidemidis because of a significant burst release of calcium peroxide from the nanofibers. Analysis of tissue cell response showed that despite an initial toxic effect over the first 24 h, after 4 days of culture, osteoblast viability and morphology were both healthy.

Abstract: The present invention relates to a polymer solution for use as a rheological blood substitute. The rheological blood replacement solution comprises in its basic composition a water-soluble cellulose polymer with a molecular weight of 100 kDa or greater, polyethylene oxide and a solvent. The rheological blood replacement solution of the invention can be used in a variety of applications, e.g. as blood substitute, calibration agent or reference agent. The blood replacement solution is based on a polymer solution, which can also be used as pharmaceutical composition, e.g. for the prevention or treatment of haemorrhage or shock-related disorders.

Abstract: The present invention relates to a polymer solution for use as a rheological blood substitute. The rheological blood replacement solution comprises in its basic composition a water-soluble cellulose polymer with a molecular weight of 100 kDa or greater, polyethylene oxide and a solvent. The rheological blood replacement solution of the invention can be used in a variety of applications, e.g. as blood substitute, calibration agent or reference agent. The blood replacement solution is based on a polymer solution, which can also be used as pharmaceutical composition, e.g. for the prevention or treatment of haemorrhage or shock-related disorders.

Abstract: Spinning process and apparatus for the technical fractionation of oligoners and polymers. Process for the fractionation of polymers, characterized in that a polymer solution (delivering-phase) is pressed through one or more spinning nozzles into an intensively agitated precipitation liquid (receiving-phase), wherein a two-phase mixture of a sol-phase and a gel-phase is formed, and the sol-phase and the gel-phase are separated from each other.