Figure 4.

Photomicrograph of virtual reaction wells on silanized glass. Phosphoramidites and tetrazole dissolved in 1:1 3MP:MGN were printed onto a standard epoxysilane-modified slide surface. The slide was carefully removed from the POSaM instrument and a photomicrograph made using 50 × magnification of a light stereomicroscope with a cooled-CCD digital camera (1,392 × 1,040 resolution). ImageJ was used to draw the scale line on the photomicrograph.