High-energy lithium-ion batteries are being increasingly applied in the electric vehicle industry but suffer from rapid capacity fading and a high risk of thermal runaway. The crosstalk phenomenon between the...

A series of soluble polyhedral oligomeric silsesquioxane (POSS) based inorganic−organic hybrid nonlinear optical materials with different architectures, such as dumbbell-type, bead-type and network-type structure, were prepared based on the hydrosilylation addition reaction of multifunctional octahydridosilsesquioxane (T 8 H ) with different azobenzene chromophore monomers. These resultant hybrid composites are soluble in common organic solvents such as tetrahydrofuran, toluene, and chloroform, and exhibit good film-forming ability. Their structures and properties were characterized and evaluated with IR, 1H NMR, 29Si NMR, TGA, DSC, optical limiting measurement and Z-scan technique, respectively. The results show that the structure of these resultant hybrids can be effectively tuned by simply varying the feed ratio and molecular structure of organic chromophore monomers. The incorporation of inorganic POSS into organic azobenzene chromophore has endowed the hybrids with well optical limiting properties and high thermal stability. Simultaneously, the relationship between molecular structure and properties of these hybrids were investigated in detail.

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Polypropylene (PP) is the most widely used biomaterial for hernia repair despite its many problems related to over fibrosis. The current study is designed to evaluate and directly compare the biomechanics and antiadhesion properties of the novel, TEMPO(2,2,6,6-tetramethylpyperidine-1oxyl)-mediated modified bacterial cellulose (TBC) mesh and the clinically used PP meshes. Laser perforation generates isotropic, flat and stable structures that prevent deformation under pressure and reduce the risk of potential bacterial colonization. In contrast to the PP mesh, the results of the in vitro study, which involve protein adsorption and cell-material interaction, suggest that TBC preferentially adsorbs bovine serum albumin (BSA) and enhances the expression of type I collagen in fibroblasts. TBC mesh cause less inflammation and is surrounded by newly formed connective tissue composed of type I collagen after implantation in a rabbit model for 1 week, demonstrating that the novel mesh is fully biocompatible and can integrate into surrounding tissues. From this study, TBC mesh may prove to be a viable clinical alternative to existing materials.