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In this article, series of novel bi-SO 3 H-functionalized ILs were synthesized using simple, efficient and economic procedure. Hammett method had been used to determine the acidity order of these ionic liquids, and the acidities of bi-SO 3 H-functionalized ILs were stronger than that of traditional single-SO 3 H-functionalized ILs. Their catalytic activities in the synthesis...
Triangular silver nanoprisms were prepared and applied to make colorimetric detection of cysteine based on our findings that cysteine could lead to the blue shift of the dipole plasmon resonance absorption, but other 19 kinds of natural amino acids could not. Cysteine with a concentration 160nmol/L can result in a color change that can be discerned with naked eyes.
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