申请人:Plant Bioscience Limited
公开号:EP1438983A1
公开(公告)日:2004-07-21
An electro-release system, for example for use in releasing a pharmaceutical compound, has an electrode and a layer structure on said electrode releasably holding an electro-releasable compound. The layer structure comprises at least one functional compound providing a first functional group forming an ionic bond with the electro-releasable compound and a second functional group which, on application of an appropriate voltage bias to the electrode, generates protons which break the ionic bond, thereby controlling release of the electro-releasable compound. Also disclosed are modified electrodes useful in such an electro-release system and having polymer bilayers based on polypyrrole or polythiophene with the two layers carrying different substituents giving different functionality or reactivity.
电释放系统,例如用于释放药物化合物的电释放系统,具有一个电极和在所述电极上可释放地容纳电释放化合物的层结构。该层结构包括至少一种官能团化合物,其中第一官能团与可电释放化合物形成离子键,第二官能团在对电极施加适当的电压偏压时产生质子,质子破坏离子键,从而控制可电释放化合物的释放。此外,还公开了可用于此类电释放系统的改性电极,这些电极具有基于聚吡咯或聚噻吩的聚合物双层,其中两层带有不同的取代基,具有不同的功能性或反应性。