Preparation of biomimetic nano-structured films with multi-scale roughness

Single-step generation of metal-plasma polymer multicore@shell nanoparticles from the gas phase

“…Figure 2a shows an example of the NPs prepared by the GAS with a mixture of Ar and HMDSO and a graphite target attached to the magnetron. The NPs were produced with a mean size of 36 nm and with the XPS elemental composition of C 52%, Si 30%, O 18%, very similar to the HMDSO films and NPs reported earlier 28 , 29 . The TEM image in Fig.…”

“…This in turn leads to the production of carbon-deficient deposits that are consequently more inorganic. The process can be optimized to produce stoichiometric SiO 2 in the form of thin films or nanoparticles 29 . Figure 2c shows the result of such optimization performed in the GAS with the silver target.…”

White paper on the future of plasma science and technology in plastics and textiles

“…Examples of this are published by the Demokritos group (Figure a) . Alternatively, surfaces with multiscale roughness were obtained by assembly of nanoparticles with different sizes produced by means of gas aggregation sources based on plasma technologies and coated with thin film of plasma deposited polymers (Figure b), or by aerosol assisted plasma deposition (Figure c) …”

Recent studies on electrospinning preparation of patterned, core–shell, and aligned scaffolds

“…[1][2][3] An ideal tissue engineering scaffold needs to meet the following requirements: (1) the scaffold material should have good biocompatibility and no cytotoxicity, obvious inflammatory reaction, and immune rejection; (2) the material should have the appropriate biodegradability; (3) the scaffold should have appropriate pore size, and high porosity (>90); (4) the scaffold requires the threedimensional (3D) shape of a specific tissue or organ shape; (5) the scaffold should have the high surface area and appropriate surface physicochemical properties to facilitate cell adhesion, proliferation, and differentiation; (6) the scaffold should be matched with the mechanical properties of implanted sites in order to maintain structural stability and integrity in the biomechanical microenvironment, and it should provide suitable micro stress environment for implanted cells. 4,5 Over the last few decades, several multimodal biomimetic strategies have emerged to alleviate damaged tissue using a wide range of fabrication methods. 4,5 Of these, electrospinning gained a rapid recognition to open a new horizon in tissue engineering methodologies owing to its simple yet precise methods to fabricate scaffolds with nano/macroscale topography.…”

“…4,5 Over the last few decades, several multimodal biomimetic strategies have emerged to alleviate damaged tissue using a wide range of fabrication methods. 4,5 Of these, electrospinning gained a rapid recognition to open a new horizon in tissue engineering methodologies owing to its simple yet precise methods to fabricate scaffolds with nano/macroscale topography. [6][7][8][9][10] The diameter and aperture of the prepared fibers are very uneven because of the jet whipping during the traditional electrospinning process.…”