Cationic polymers and aptamers mediated aggregation of gold nanoparticles for the colorimetric detection of arsenic(III) in aqueous solution.
نویسندگان
چکیده
As(III) specifically interacts with an arsenic-binding aptamer to form an As(III)-aptamer complex, so that the following cationic polymer can aggregate gold nanoparticles (AuNPs) and cause a remarkable change in color, which enables the colorimetric detection of As(III) with high selectivity and a detection limit of 5.3 ppb.
منابع مشابه
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ورودعنوان ژورنال:
- Chemical communications
دوره 48 37 شماره
صفحات -
تاریخ انتشار 2012