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The paper reports a hyper-branched polymer functionalized on resonant micro-cantilevers to detect trace-level chemical vapor of dimethyl methylphosphonate (DMMP, simulant of sarin). The hyperbranch-polymer with functional-groups is directly constructed onto cantilever-surface by layer-to-layer step-growing monomers with an A2+B4 composition, where A2 and B4 are complementary interaction-groups for...
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