We developed an alternative patterning technique which is capable of producing both topographic and biochemical features for cell culture studies. This technique is based on microaspiration induced with a degassed poly (dimethylsiloxane) (PDMS) mold. After degassing in a rough vacuum chamber and placed on a sample surface, liquid solution can be aspired through channels and cavities created in the PDMS mold. Depending on the composition of the solution and the associated drying or incubation processes, a variety of surface patterns can be produced without applying external pressure. For demonstration, we fabricated agarose gel microwells and biomolecule patterns either on a glass plate or in a cell culture Petri dish, both applicable for cell culture studies.
- Cell culture
- Soft lithography
- Surface patterning
ASJC Scopus subject areas
- Applied Microbiology and Biotechnology