Abstract
A variable height flow cell was used to measure the adhesion properties of the neural cell line of neuroblastoma X glioma (NG108-15) cells cultured on substrates of organosilane self-assembled monolayers (SAMs). The SAMs tested in this study were 13F, 15F, PEG 550, OTS, DETA and APTS. Utilizing deep UV lithography, patterning of the SAMs create three regions for cell attachment; the original SAM, the backfilled SAM, and the interface between the two. Upon plating, the cell soma show no preference for any of the three regions. One exception was on PEG 550, which was found to resist cell adhesion upon normal plating conditions. The cell processes of the NG108-15 cells show a preference for growth at the interface between two patterned surfaces. A factor of three increase in adhesive properties was found for the patterned surfaces over an uncoated glass surface. Design rules of a single whole cell biosensor using the NG108-15 cells can be developed based on these findings.
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