2019
DOI: 10.1021/acsomega.9b01051
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Covalently Fluorophore-Functionalized ZIF-8 Colloidal Particles as a Sensing Platform for Endocrine-Disrupting Chemicals Such as Phthalates Plasticizers

Abstract: 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… Show more

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Cited by 13 publications
(17 citation statements)
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“…The authors have previously published, for the first time, the chemical analysis of frameworks by HPLC. [15,20] Notably, the final composition of Z8P by HPLC is consistent with 2-mim being included on the composition of the hybrid fluorescent ZIF, as required to achieve the desired nanostructure. HPLC analysis supports that most of the imidazolate moieties in Z8P are i2ca which are those that include the aldehyde functionality.…”
Section: Resultsmentioning
confidence: 79%
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“…The authors have previously published, for the first time, the chemical analysis of frameworks by HPLC. [15,20] Notably, the final composition of Z8P by HPLC is consistent with 2-mim being included on the composition of the hybrid fluorescent ZIF, as required to achieve the desired nanostructure. HPLC analysis supports that most of the imidazolate moieties in Z8P are i2ca which are those that include the aldehyde functionality.…”
Section: Resultsmentioning
confidence: 79%
“…A response comparable to the one reported previously by us for this system was recorded (Figure S10 in the Supporting Information). [15] To turn the enzyme immunoassay into a fluorescence immunoassay based on the inherent fluorescent properties of Z8P, the model non-competitive indirect ELISA was performed at higher concentrations (Sections 7.4.1 and 7.4.2 in the Supporting Information).…”
Section: Resultsmentioning
confidence: 99%
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“…An experiment was designed using the analytical conditions developed in previous work. [10] to assess the changes in fluorescence quenching of the conjugate, Z8P-IgG, when exposed to a model contaminant, dimethyl phthalate, DMP.…”
Section: Fluorescence Characterization the Conjugated Z8p Particles Vmentioning
confidence: 99%
“…This accurate control makes MOFs predestined for drug loading and sustained or triggered release from nano-particulate drug formulations or coatings ( Wang et al, 2020 ). This has led to the classical understanding of “biomedical MOF applications” that primarily focused on diagnostic applications ( Chapartegui-Arias et al, 2019 ) or drug delivery ( Keskin and Kizilel, 2011 ; Banerjee et al, 2020 ). The present review is clearly delimited from these established fields of investigation by focusing on MOFs for TERM applications.…”
Section: Introductionmentioning
confidence: 99%