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Adhaesionssteuerbare ultraminiaturisierte Oberflaechenstruktur

Adhesion-controllable ultraminiaturized surface structure

Frontpage ()

DE 1993-4344351 A: 19931223
DE 1994-4400955 A: 19940114
EP 1995-903761 AW: 19941223
WO 1994-DE1530 A: 19941223
DE 4400955 C2: 19990401
EP 735923 B1: 19990616
Patent, Electronic Publication
Fraunhofer ISIT ()

To avoid or selectively increase particle adsorption or adhesion on flexible or rigid materials, extremely miniaturized (in submicron range) planar electrode strips (22;42,44;52) are applied to a surface (21;41;51) to which high-frequency pulse sequences can be applied in order to create travelling or standing electrical surface waves, whereby the electrodes themselves are combined by means of dielectric materials (23;43,45;53) or insulating materials tested for their biocompatibility, and thus are partially or fully covered. The type of electrical control in combination with the characteristics of the surface layers covering the electrodes determines the adhesion properties of the surface largely independent of the base material used. The particles are carefully influenced in their movement. For the first time it is possible to influence particles in highly physiological nutrient solutions.