The accurate placement of extremely small volumes of fluids can enable both multistep in situ synthesis on a substrate surface and {HEAD ~ deposition} of {TAIL ~ 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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The accurate placement of extremely small volumes of fluids can enable both multistep in situ synthesis on a substrate surface and { HEAD ~ deposition } of { TAIL ~ 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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