Covalently Fluorophore-Functionalized ZIF-8 Colloidal Particles as a Sensing Platform for Endocrine-Disrupting Chemicals Such as Phthalates Plasticizers | Zendy

Ander ChaparteguiArias | Zendy; José A. Villajos | Zendy; Anett Myxa | Zendy; Sebastian Beyer | Zendy; Jana Falkenhagen | Zendy; Rudolf J. Schneider | Zendy; Franziska Emmerling | Zendy

Open Access

Covalently Fluorophore-Functionalized ZIF-8 Colloidal Particles as a Sensing Platform for Endocrine-Disrupting Chemicals Such as Phthalates Plasticizers

Author(s) -

Ander ChaparteguiArias,

José A. Villajos,

Anett Myxa,

Sebastian Beyer,

Jana Falkenhagen,

Rudolf J. Schneider,

Franziska Emmerling

Publication year - 2019

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.9b01051

Subject(s) - fluorophore , plasticizer , covalent bond , endocrine system , chemistry , colloid , nanotechnology , materials science , environmental chemistry , fluorescence , chemical engineering , organic chemistry , biochemistry , engineering , hormone , physics , quantum mechanics

We present the optical sensing of phthalate esters (PAEs), a group of endocrine-disrupting chemicals. The sensing takes place as changes in the fluorescence emission intensity of aminopyrene covalently bound to the organic ligands of the metal-organic framework compound ZIF-8. In the presence of PAEs, a quenching of the fluorescence emission is observed. We evaluated strategies to engineer colloidal size distribution of the sensing particles to optimize the sensory response to PAEs. A thorough characterization of the modified ZIF-8 nanoparticles included powder X-ray diffractometry, transmission electron microscopy, high-performance liquid chromatography, and photophysical characterization. The presented capability of the fluorophore-functionalized ZIF-8 to sense PAEs complements established methods such as chromatography-based procedures, which cannot be used on-site and paves the way for future developments such as hand-held quick sensing devices.

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