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Plasma and chemical-induced graft polymerization on the surface of starch-based...
Elvira, C.; Feng, Y.; Azevedo, M. C.; Rebouta, L.; Cunha, A. M.; San Román, J.; Reis, R. L.Plasma and chemical induced graft polymerization of acrylic monomers on starch-based biomaterials has been performed with the aim to improve cell adhesion and proliferation on the surface of the polymers, in order to adequate their properties for bone tissue engineering scaffolding applications. Plasma and chemical surface activation was aimed to induce the polymerization of acrylic polar monomers being carrie...
The effect of grain-domain-size on levitation force of melt growth processing Y...
Yang,W. M.; Zhou,L.; Feng,Y.; Zhang,P.X.; Zhang,C.P.; Yu,Z.M.; Tang,X.D.Effects of grain-domain-size (GDS) on levitation force have been directly investigated and identified in well-textured YBCO bulks. A single-grain-domain YBCO bulk (phi=30mm) was prepared by a top seeded melt growth process, then divided into two, three and four grain-domain to acquire the levitation forces of samples with different GDS. It is found that the levitation force of the samples monotonously decreases...
Spin depolarization in quantum dots
Sachrajda,A.S.; Gould,C.; Hawrylak,P.; Feng,Y.; Zawadzki,P.; Wasilewski,Z.We have performed single electron spectroscopy experiments on single lateral quantum dots. We demonstrate that the lateral nature of the tunneling as well as the properties of the 2DEG leads can be used to extract new information in the 'spin-flip' regime. Calculations confirm that one needs to go beyond the Hartree-Fock approximation and include correlation effects to explain the experimental observations. The...
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