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Rapid and ultrasensitive detection of endocrine disrupting chemicals using a nanosensor-enabled cell-based platform.


ABSTRACT: Endocrine disrupting chemicals (EDCs) interact with estrogen receptors (ERs), causing a broad range of adverse health effects. Current assays for EDC activity are slow and often lack sensitivity. We report here an ultra-sensitive nanosensor that can detect estrogenic cellular changes in ER(+) MCF-7 cells rapidly (minutes) at several orders of magnitude lower than the generally used assays. Notably, the sensor responses at these ultra-low EDC levels correlated with an increased synthesis phase (S-phase) cell population of EDC-treated cells. The nanosensor was also able to detect binary EDC mixture effects, with synergism observed for bisphenol A (BPA) - 17?-estradiol (E2), and antagonism for dicyclohexylphthalate (DCHP) - E2 and benzo(a)pyrene (BaP) - E2.

SUBMITTER: Le NDB 

PROVIDER: S-EPMC5572768 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature

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Rapid and ultrasensitive detection of endocrine disrupting chemicals using a nanosensor-enabled cell-based platform.

Le Ngoc D B NDB   Wang Xian X   Geng Yingying Y   Tang Rui R   Tonga Gulen Yesilbag GY   Jiang Ziwen Z   Rotello Vincent M VM  

Chemical communications (Cambridge, England) 20170724 62


Endocrine disrupting chemicals (EDCs) interact with estrogen receptors (ERs), causing a broad range of adverse health effects. Current assays for EDC activity are slow and often lack sensitivity. We report here an ultra-sensitive nanosensor that can detect estrogenic cellular changes in ER(+) MCF-7 cells rapidly (minutes) at several orders of magnitude lower than the generally used assays. Notably, the sensor responses at these ultra-low EDC levels correlated with an increased synthesis phase (S  ...[more]

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