Fabrication of Polymeric Micro needle Array by Micromachining & Micro molding
نویسندگان
چکیده
Microneedles are expected to have greater demand in biomedical applications like sensing, electroporation & drug delivery in the future and there is need for development of fabrication process which is simple, economical and productive. Present work discusses about fabrication of PDMS (polydimethylsiloxane) micro needle array electrode for bio-potential signal measurement like EEG by micromachining and micro molding process as PDMS structures are flexible and can withstand relative movement with skin without breaking. Customized tungsten carbide tools are manufactured and used in precision micromachining followed by micromolding process. Study has been carried out to relate the size of tool with the size of microneedles fabricated.
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