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Fig.S4 1 H NMR spectrum of linear polymer PAAm-DMAPAA (DMSO d6 )  

Fig.S4 1 H NMR spectrum of linear polymer PAAm-DMAPAA (DMSO d6 )  

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A rapid, effective method for the screening of adsorbent ligands based on the unique optical properties of gold colloid has been developed. Different interactions between adsorbate and ligands induce different states of aggregation of the gold colloid, and the associated distinct color changes of the colloid have been utilized to estimate the affin...

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