{TAIL ~ The accurate placement} of 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 {HEAD ~ a surface} 
{ TAIL ~ The accurate placement } of 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 { HEAD ~ a surface }
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