{HEAD ~ The accurate placement} of {TAIL ~ extremely small volumes} of fluids can enable both multistep in situ synthesis on a substrate surface and deposition of an intact molecule within an extraordinarily small zone without the need to mask, pre activate surface sites, or otherwise modify a predetermined region of a surface 
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{ HEAD ~ The accurate placement } of { TAIL ~ extremely small volumes } of fluids can enable both multistep in situ synthesis on a substrate surface and deposition of an intact molecule within an extraordinarily small zone without the need to mask , pre activate surface sites , or otherwise modify a predetermined region of a surface
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