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In this Letter, the nanoporous anodic alumina membranes (nanoPAAM) were first fabricated by the two-step anodic oxidisation method, and then based on these nanoPAAM master molds, polymer polymethylmethacrylate nanopillars with controllable heights and diameters were achieved by the direct casting method. Subsequently, combined with the ultraviolet lithography or electron beam lithography, a kind of...
Raman microspectroscopy of human sperm cells and nearfield infrared microscopy of nanoscale biomaterials like nanografted DNA have been performed. A newly developed station for the ANKA-IR2 beamline combines several techniques to study the same sample at the same position.
In this paper electrospinning process was used to produce fibers for variety of applications such as tissue engineering, bio-photovoltaics, and bio-FETs. Tissue scaffolds have been made using electrospun fibers containing polycaprolactone (PCL) as a core material and gelatin as sheath. Biodegradable and biocompatible exterior gelatin promotes cell generation while biodegradable PCL core gives higher...
Nanoparticles, as nonviral vectors, have attracted attention for their ability in gene delivery and are currently considered to be prospective future vectors for biological and biomedical application . We prepared organically modified cationic silica nanoparticles toward the high performance nonviral vector. It is to be noted that the complexes of DNA and nanoparticles are regarded as a simple model...
The development of strategies for the robust attachment of organized patterns of nanostructures to a variety of surfaces has been a major objective of this laboratory. One of the significant impediments to single molecule, as opposed to multiple molecule, attachment arises from the size gap or intrinsic mismatch between the size of readily obtainable ldquotop downrdquo nanostructures and the native...
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