Nanofabrication of all-dielectric metasurfaces through pulsed thermal scanning probe lithography.

Many fields in science and industry rely on the advances of nanofabrication processes. However, well-established techniques, such as electron beam lithography, might pose restrictions on dielectric materials due to surface charging effects. We propose using pulsed thermal scanning probe lithography to directly assemble high resolution patterns on insulating substrates.

Coaxial nanofibers of chitosan-alginate-PEO polycomplex obtained by electrospinning.

Electrospinning of mucoadhesive membranes is a new and promising field of investigation in the pharmaceutical and biomedical area. The present study explored the electrospinning of two mucoadhesive polymers, chitosan and alginate, to form a core-shell type nanofibers for future applications as controlled drug delivery. Due to the charged functional groups present in these natural polysaccharides, they can complex to yield various nanodevices to be used in controlled release of several active ingredients.