Inverse opals with reactive surface chemistry as sensors for aqueous pollutants,Chemical Communications

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Inverse opals with reactive surface chemistry as sensors for aqueous pollutants
Chemical Communications ( IF 4.3 ) Pub Date : 2024-06-27 , DOI: 10.1039/d4cc01781a
Giulia Magnabosco ₁ , Maria Ochs ₂ , Natalie Bonakdar ₁ , Laura Czerwenka ₂ , Annette Andrieu-Brunsen ₂ , Nicolas Vogel ₁

Affiliation

Inverse opal colorimetric sensors operating on wetting transitions usually rely on physical differences of the infiltrating liquid. Here, we exploit a reactive surface chemistry that changes wettability upon binding of an analyte. Upon binding of Fe³⁺ to a Schiff base immobilized on the porous structure, the surface becomes more hydrophilic, triggering the infiltration of the structure and causing the structural color to disappear.

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