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. 2017 Jun 27;23(36):8581-8584.
doi: 10.1002/chem.201701024. Epub 2017 Jun 5.

Fluorogenic Sensing of Carcinogenic Bisphenol A using Aptamer-Capped Mesoporous Silica Nanoparticles

Àngela Ribes  1   2 , Elena Aznar  1   2 , Andrea Bernardos  1   2 , M Dolores Marcos  1   2   3 , Pedro Amorós  4 , Ramón Martínez-Máñez  1   2   3 , Félix Sancenón  1   2   3
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Fluorogenic Sensing of Carcinogenic Bisphenol A using Aptamer-Capped Mesoporous Silica Nanoparticles

Àngela Ribes et al. Chemistry. .

Abstract

Mesoporous silica nanoparticles loaded with rhodamine B and capped with a bisphenol A aptamer were used for the selective and sensitive detection of this lethal chemical. The pores of the nanoparticles are selectively opened in the presence of bisphenol A (through its selective coordination with the aptamer) with subsequent rhodamine B delivery. With this capped material a limit of detection as low as 3.5 μm of bisphenol A was measured.

Keywords: aptamer; bisphenol a; fluorogenic sensing; gated nanomaterials; mesoporous silica nanoparticles.

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