The design and fabrication of ultrathin polymer layers are of increasing importance because of the rapid development of nanoscience and nanotechnology. Confined, two-dimensional crystallization of polymers presents challenges and opportunities due to the long-chain, covalently bonded nature of the macromolecule. Using an innovative layer-multiplying coextrusion process to obtain assemblies with...

There has been increasing interest over recent years in the application of three-dimensional (3D) printing technologies biomedical field. One such method is Direct Ink Writing (DIW); this approach potential advantage allowing room-temperature deposition materials, presented as an ink, to build complex architectures. DIW offers ability process biomaterials containing temperature-sensitive compon...

This study aims to characterize and evaluate polyethylene oxide (PEO) chitosan (CS) nanofibers produced by electrospinning method. Electrospinning solutions were used at three different concentrations (1, 2, 3 wt%) with five PEO/CS mixing ratios (30/70, 40/60, 50/50, 60/40, 100/0). FESEM, XRD FTIR tests applied for characterization of the nanofibers. Antibacterial activity against Staphylococcu...

The deuteron transverse relaxation properties of polyethylene oxide melts four different molecular weights, covering the range from onset entanglements to regime fully entangled chains, are investigated using Hahn echo decays over an extensive time interval up ten times effective spin time. results compared predictions based on Rouse and reptation formalisms, taking into account dynamical heter...