Poly (propylene fumarate) (PPF), a linear unsaturated polyester consisting of alternating propylene glycol and fumaric acid units, can be cured in vivo to fill the skeletal defects with minimal surgical intervention. Many different methods have been reported for synthesizing PPF, but none of them gives a clear method. The present paper introduces two new methods in PPF synthesis: Modified reflu...

The metalorganic chemical vapor deposition of a highly strained InGaAsN quantum-well ~QW! surrounded by ~In!GaAsP direct barrier layers is investigated. We found that growth pause annealing with AsH3 , performed immediately before and after the growth of the QW, significantly improves the optical quality of InGaAsN QW with ~In!GaAsP direct barriers. The utilization of larger band gap barrier ma...

poly (propylene fumarate) (ppf), a linear unsaturated polyester consisting of alternating propylene glycol and fumaric acid units, can be cured in vivo to fill the skeletal defects with minimal surgical intervention. many different methods have been reported for synthesizing ppf, but none of them gives a clear method. the present paper introduces two new methods in ppf synthesis: modified reflu...

CoFe2O4 thin films (5 nm and 20 thick) were grown by oxygen assisted molecular beam epitaxy on Pt(111) at 523~K subsequently annealed 773 K in vacuum or oxygen. They characterized in-situ using Auger Electron Spectroscopy, Low-Energy Diffraction, Scanning Tunneling Microscopy Conversion M\"ossbauer Spectroscopy. The as-grown composed of small, nanometric grains. Annealing the produced an increa...

In the present work, a mesoporous multiphase amorphous crystal nanopowder Bi2O3 with specific surface area of up to 23 m2/g was produced by pulsed electron beam evaporation in vacuum. Influence thermal annealing (200-500 °C) powders air is investigated. The formation droplets size 3-5 nm on all large nanoparticles constituting framework 3D agglomerates found due extrusion liquid bismuth from vo...

Nanostructured coatings based on amorphous carbon and carbon-doped with gold, silver, nitrogen were obtained by the pulsed vacuum-arc method. Carbon have been annealed in a vacuum as well treated argon ions. The alloying of elements that do not form chemical bonds matrix (Ag, Au) leads to formation gold or silver nanocrystallites sizes 2 ‑ 20 nm carbon, whose density depends concentration dopin...

Detonation Nanodiamonds nanodiamonds (DNDs) have attracted attention as single photon emitters with potential in many research fields. In article number 2100144 by Takuya Fabian Segawa, Shigeki Takeuchi, and co-workers, silicon-vacancy (SiV) color centers are created DNDs sizes below 10 nm an annealing treatment up to 1100 °C vacuum. A sharp emission line is observed at 737 nm, which agrees the...

persian sturgeon (acipenser persicus) is one of the most important fish in caspian sea and demand for its fillets is considerable, study to improve the packaging and protect their quality during storage is necessary. in this study persian sturgeon fillets were packed under 30% vacuum then freezed and effect of this packaging method on decreasing and delaying lipid rancidity was studied by measu...