We report on a quartz pin that can be interfaced easily to existing pin printers. The new pin surface can be reversibly derivatized using silanization chemistry, allowing one to reliably print a wide variety of liquid solutions. Feature sizes as small as 9 microm can be produced with the new pin, allowing one to readily create microarrays with a feature density approaching 10(6) spots/cm2.
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Tehan et al. (2007) studied this question.
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