申请人:——
公开号:US20030175321A1
公开(公告)日:2003-09-18
Shaped, preferably porous, inorganic bodies are provided which are prepared from a reactive blend. In accordance with one preferred embodiment, the solution is absorbed into a porous sacrificial substrate such as a cellulose sponge. The solution-saturated substrate is heated and an oxidation-reduction reaction occurs thereby forming an inorganic solid. A shaped, inorganic body is formed in situ. Optional, but preferred additional thermal treatment of the shaped, inorganic body removes the organic substrate, leaving an inorganic body that faithfully mimics the porosity, shape, and other physical characteristics of the organic substrate. Inorganic substrates may also be used to good effect. Large varieties of shaped bodies can be prepared in accordance with other embodiments of the invention and such shapes find wide use in surgery, laboratory and industrial processes and otherwise. The invention also provides chemically and morphologically uniform powders, including those having uniformly small sizes.
本发明提供了一种由反应性混合物制备的形状优选为多孔的无机体。根据一种优选实施例,该溶液被吸收到多孔的牺牲性基质中,例如纤维素海绵中。该溶液饱和的基质被加热,氧化还原反应发生,从而形成无机固体。在原位形成一个形状的无机体。可选的,但是优选的附加热处理形状的无机体去除有机基质,留下一个无机体,其忠实地模拟有机基质的多孔性、形状和其他物理特性。无机基质也可以被有效地使用。根据本发明的其他实施例可以制备大量形状的体,并且这些形状在外科手术、实验室和工业过程以及其他领域中得到广泛应用。本发明还提供了化学和形态均匀的粉末,包括具有均匀小尺寸的粉末。