These systems can be microsensors or microtransducers, and are helpful in areas such as physics, mechanics, electronics and biomedicals, as they can provide very precise and fast results. MEMS-based devices have been widely used in the biomedical area for applications such as diagnostics and therapeutics. MEMS are approaches that use electronic and mechanical technologies to deal with biomedical problems on the micro-scale. Soft-lithography techniques such as micro-contact printing, replica moulding, micro-transfer moulding, micro-moulding in capillaries and solvent-assisted micro-moulding usually require the use of PDMS to create an elastomeric stamp or mould that incorporates nano- and microstructures for the transfer of patterns onto a subsequent substrate. Moreover, soft-lithography technology has driven the use of PDMS in microelectromechanical systems (MEMS) applications and in microfluidic components. Due to these characteristics, PDMS has been widely used in micropumps, catheter surfaces, dressings and bandages, microvalves, optical systems, in the in vitro study of diseases, in implants, in microfluidics and photonics.

Polydimethylsiloxane (PDMS) is an elastomeric polymer with interesting properties for biomedical applications, including physiological indifference, excellent resistance to biodegradation, biocompatibility, chemical stability, gas permeability, good mechanical properties, excellent optical transparency and simple fabrication by replica moulding.

Pdms sample project drawings