Abstract: Bioactive implant for myocardial regeneration and ventricular chamber support including an elastomeric microporous membrane. The elastomeric microporous membrane being at least one non-degradable polymer and at least one partially degradable polymer. The non-degradable polymer is selected from polyethylacrylate and polyethylacrylate copolymerized with a hydroxyethylacrylate comonomer. The partially degradable polymer is selected from caprolactone 2-(methacryloyloxy)ethyl ester and caprolactone 2-(methacryloyloxy)ethyl ester copolymerized with ethylacrylate. The elastomeric microporous membrane further includes a nanofiber hydrogel, and cells. The bioactive implant, having one or two helical loops, contributes to the restoration of the heart conical shape.

Abstract: The invention relates to a material comprised of silicotitanates having a crystalline structure similar to MCM-41 zeolites, said material being characterized in that it contains in its lattice atoms of titanium and channels in its porous structure whose average sizes exceed 10 .ANG., making possible its utilization in catalytic reactions wherein are involved large organic molecules, such as the oxidation of olefins to epoxides and glycols, alcohols to cetones, thio-ethers to sulfoxides and sulfones, and phenol to catechol and hydroquinone, and if Al is introduced into the structure it is then possible to prepare bifunctional catalysts "oxidant-acid/base." In order to obtain such product, and aqueous solution is used which contains the ion NR.sub.1 N.sub.2 N.sub.3 N.sub.4.sup.+ as well as another aqueous solution which contains tetramethyl ammonium hydroxide and a silica source (e.g. aerosil.RTM.. After homogenization, more silica is added, as is the Ti source ?e.g. Ti(C.sub.2 OH.sub.5).sub.4 !.

Abstract: An active component is used for capturing basic nitrogen in field catalytic cracking (FCC). The active component contains a modified sepiolite consisting of a modified magnesium silicate in which divalent Mg cations have been substituted by trivalent Al cations. The component has a surface area of between 50 and 600 m.sup.2 /g and an average pore radius of between 20 and 110 .ANG..