Biomimetic 1-Aminocyclopropane-1-Carboxylic Acid Oxidase Ethylene Production by MIL-100(Fe)-Based Materials.
Marzena FandzlochCarmen R MaldonadoJorge A R NavarroElisa BareaPublished in: ACS applied materials & interfaces (2019)
A novel core@shell hybrid material based on biocompatible hydroxyapatite nanoparticles (HA) and the well-known MIL-100(Fe) (Fe3O(H2O)2F(BTC)2·nH2O, BTC: 1,3,5-benzenetricarboxylate) has been prepared following a layer-by-layer strategy. The core@shell nature of the studied system has been confirmed by infrared, X-ray powder diffraction, N2 adsorption, transmission electron microscopy imaging, and EDS analyses revealing the homogeneous deposition of MIL-100(Fe) on HA, leading to HA@MIL-100(Fe) rod-shaped nanoparticles with a 7 nm shell thickness. Moreover, both MIL-100(Fe) and HA@MIL-100(Fe) have demonstrated to act as efficient heterogeneous catalysts toward the biomimetic oxidation of 1-aminocyclopropane-1-carboxylic acid into ethylene gas, a stimulator that regulates fruit ripening. Indeed, the hybrid material maintains the catalytic properties of pristine MIL-100(Fe) reaching 40% of conversion after only 20 min. Finally, the chemical stability of the catalyst in water has also been monitored for 21 days by inductively coupled plasma-mass spectrometry confirming that only ca. 3% of Ca is leached.
Keyphrases
- metal organic framework
- mass spectrometry
- electron microscopy
- high resolution
- magnetic resonance imaging
- room temperature
- magnetic resonance
- liquid chromatography
- computed tomography
- hydrogen peroxide
- ionic liquid
- gold nanoparticles
- ms ms
- optical coherence tomography
- high performance liquid chromatography
- visible light
- dual energy
- protein kinase
- fluorescence imaging
- hyaluronic acid
- lactic acid