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Grape, Erik Svensson; Flores, J. Gabriel; Hidalgo, Tania; Martínez-Ahumada, Eva; Gutiérrez-Alejandre, Aída; Hautier, Audrey; Williams, Daryl R; O’Keeffe, Michael; Öhrström, Lars; Willhammar, Tom; Horcajada, Patricia; Ibarra, Ilich A; Inge, A. Ken
Journal of the American Chemical Society, 09/2020, Letnik: 142, Številka: 39Journal Article
The first bioinspired microporous metal–organic framework (MOF) synthesized using ellagic acid, a common natural antioxidant and polyphenol building unit, is presented. Bi2O(H2O)2(C14H2O8)·nH2O (SU-101) was inspired by bismuth phenolate metallodrugs, and could be synthesized entirely from nonhazardous or edible reagents under ambient aqueous conditions, enabling simple scale-up. Reagent-grade and affordable dietary supplement-grade ellagic acid was sourced from tree bark and pomegranate hulls, respectively. Biocompatibility and colloidal stability were confirmed by in vitro assays. The material exhibits remarkable chemical stability for a bioinspired MOF (pH = 2–14, hydrothermal conditions, heated organic solvents, biological media, SO2 and H2S), attributed to the strongly chelating phenolates. A total H2S uptake of 15.95 mmol g–1 was recorded, representing one of the highest H2S capacities for a MOF, where polysulfides are formed inside the pores of the material. Phenolic phytochemicals remain largely unexplored as linkers for MOF synthesis, opening new avenues to design stable, eco-friendly, scalable, and low-cost MOFs for diverse applications, including drug delivery.
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in: SICRIS
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