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Metal organic frameworks encapsulated in photocleavable capsules for UV-light triggered catalysis

(2015) CHEMISTRY OF MATERIALS. 27(16). p.5495-5502
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Abstract
A smart catalyst that can be activated by UV-light was prepared by encapsulating metal organic framework (MOF) particles in microcapsules with a photocleavable polyurea shell. Addition of palmitic acid as a modulator during the synthesis of the Fe-terephthalate MOF MIL-88B(Fe) yields MOP particles with a hydrophobic surface. These particles can be successfully encapsulated via interfacial polymerization, as proven by a combination of powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), and energy dispersive Xray (EDX) techniques. By the incorporation of photolabile groups in the polymer shell, UV light can be employed to trigger degradation of the capsules, releasing the catalytic load. Catalyst activation triggered by UV light was monitored by recording the rates for catalytic tetramethylbenzidine (TMB) oxidation with H2O2. The reactivity could be controlled by tuning irradiation time, UV intensity, or MOP loading. The activity of the capsules was up to 90 times higher after irradiation.
Keywords
DELIVERY, MODULATION, BEHAVIOR, ROUTE, DRUG, FUNCTIONALIZATION, MICROENCAPSULATION, MICROCAPSULES

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Chicago
Deleu, Willem PR, Guadalupe Rivero, Roberto Teixeira, Filip Du Prez, and Dirk E De Vos. 2015. “Metal Organic Frameworks Encapsulated in Photocleavable Capsules for UV-light Triggered Catalysis.” Chemistry of Materials 27 (16): 5495–5502.
APA
Deleu, W. P., Rivero, G., Teixeira, R., Du Prez, F., & De Vos, D. E. (2015). Metal organic frameworks encapsulated in photocleavable capsules for UV-light triggered catalysis. CHEMISTRY OF MATERIALS, 27(16), 5495–5502.
Vancouver
1.
Deleu WP, Rivero G, Teixeira R, Du Prez F, De Vos DE. Metal organic frameworks encapsulated in photocleavable capsules for UV-light triggered catalysis. CHEMISTRY OF MATERIALS. 2015;27(16):5495–502.
MLA
Deleu, Willem PR, Guadalupe Rivero, Roberto Teixeira, et al. “Metal Organic Frameworks Encapsulated in Photocleavable Capsules for UV-light Triggered Catalysis.” CHEMISTRY OF MATERIALS 27.16 (2015): 5495–5502. Print.
@article{6999330,
  abstract     = {A smart catalyst that can be activated by UV-light was prepared by encapsulating metal organic framework (MOF) particles in microcapsules with a photocleavable polyurea shell. Addition of palmitic acid as a modulator during the synthesis of the Fe-terephthalate MOF MIL-88B(Fe) yields MOP particles with a hydrophobic surface. These particles can be successfully encapsulated via interfacial polymerization, as proven by a combination of powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), and energy dispersive Xray (EDX) techniques. By the incorporation of photolabile groups in the polymer shell, UV light can be employed to trigger degradation of the capsules, releasing the catalytic load. Catalyst activation triggered by UV light was monitored by recording the rates for catalytic tetramethylbenzidine (TMB) oxidation with H2O2. The reactivity could be controlled by tuning irradiation time, UV intensity, or MOP loading. The activity of the capsules was up to 90 times higher after irradiation.},
  author       = {Deleu, Willem PR and Rivero, Guadalupe and Teixeira, Roberto and Du Prez, Filip and De Vos, Dirk E},
  issn         = {0897-4756},
  journal      = {CHEMISTRY OF MATERIALS},
  keyword      = {DELIVERY,MODULATION,BEHAVIOR,ROUTE,DRUG,FUNCTIONALIZATION,MICROENCAPSULATION,MICROCAPSULES},
  language     = {eng},
  number       = {16},
  pages        = {5495--5502},
  title        = {Metal organic frameworks encapsulated in photocleavable capsules for UV-light triggered catalysis},
  url          = {http://dx.doi.org/10.1021/acs.chemmater.5601140},
  volume       = {27},
  year         = {2015},
}

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