Assertion: polymer's use | /r/HasProperty | –peo
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Source sentences:
text: The use of poly-L-lysine–PEO–biotin brushes grafted inside a microchannel carved within a microcantilever allowed for the subfemtogram detection of the selective binding of γ-IgG (immunoglobulin G) in fluid, representing a dramatic improvement of sensitivity over a conventional quartz microbalance65.