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- W2943450238 abstract "In this work, a paper strip-based sensor was produced to detect p-nitroaniline with nitrogen-rich quantum dots (N-dots) and polydopamine molecularly imprinted polymer (MIP). In this sensing system, we used p-nitroaniline as a template to prepare the polydopamine/N-dots imprinted material by self-polymerization of dopamine. As a result, the captured p-nitroaniline quenched the fluorescence intensity of N-dots on the paper strip. The fluorescence intensity ratio of the sensor before and after the adsorption of p-nitroaniline was linearly related with the logarithmic concentration of p-nitroaniline within a certain range from 5 nmol L −1 to 1 μmol L −1 with a quite low detection limit of 1.65 nmol L −1 . It is the first time to detect p-nitroaniline reported with polydopamine/N-dots imprinted material with high selectivity. • N-dots exhibit excellent optical properties and good biocompatibility with broad application prospects. • The linear range is wide and the detection limit is quite low. • The sensor provides a simple, rapid and reliable analytical method for the detection of p-nitroaniline." @default.
- W2943450238 created "2019-05-09" @default.
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- W2943450238 date "2019-07-01" @default.
- W2943450238 modified "2023-10-14" @default.
- W2943450238 title "Nitrogen-rich quantum dots-based fluorescence molecularly imprinted paper strip for p-nitroaniline detection" @default.
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- W2943450238 doi "https://doi.org/10.1016/j.microc.2019.04.080" @default.
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