Microneedle devices and methods of manufacture are provided for transport of molecules or energy across or into biological barriers, such as skin. The device can comprise one or more microneedles formed of a first material and a second material, wherein the second material is dispersed throughout the...http://www.google.fr/patents/US20020082543?utm_source=gb-gplus-shareBrevet US20020082543 - Microneedle devices and production thereof
