A new post-synthetic polymerization strategy makes metal–organic frameworks more stable

Yang, Shuliang; Li, Peng; Sun, Daniel T.; Asgari, Mehrdad; Oveisi, Emad; Trukhina, Olga; Bulut, Safak; Jamali, Abbas; Queen, Wendy L.

doi:10.1039/c9sc00135b

Cited by 132 publications

(88 citation statements)

References 64 publications

(66 reference statements)

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“…Since this work, a number of similar approaches have been developed and applied to improve MOF stability. [141][142][143][144] Qian et al successfully deposited a hydrophobic organosilicone layer on the exterior surface of MOFs via a facile solution-immersion process without any heat treatment. 141 Upon exposure to water for 5 days, it was found that the porosity of the MOFs HKUST-1, MIL-125, and ZIF-67 was retained to a great extent due to the enhanced hydrophobicity.…”

Section: Improving the Chemical Stability Of Existing Mofsmentioning

confidence: 99%

“…Recently, Queen's group successfully developed a two-step postsynthetic polymerization method to improve the stability of seven different types of MOFs. 143 First, polydopamine (PDA) as an adhesive was rstly coated on the surface of these MOFs under an oxygen atmosphere. Then, based on a Michael addition, the hydrophobic 1H,1H,2H,2H-peruorodecanethiol was covalently graed on the surface of the MOF@PDA that resulted from the previous step.…”

Section: Improving the Chemical Stability Of Existing Mofsmentioning

confidence: 99%

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Improving MOF stability: approaches and applications

2019

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Section: Improving the Chemical Stability Of Existing Mofsmentioning

confidence: 99%

Section: Improving the Chemical Stability Of Existing Mofsmentioning

confidence: 99%

Improving MOF stability: approaches and applications

2019

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“…The general concept is mainly directed towards rendering the MOF surface hydrophobic, in an attempt to enhance the resistance to moisture/water. This can be achieved through coating of the MOF, postsynthetically, with hydrophobic polymers . Alternatively, the incorporation of hydrophobic graphite oxide during MOF synthesis has been shown to enhance the hydrothermal stability and catalytic activity of HKUST‐1 .…”

Section: Resultsmentioning

confidence: 99%

Probing the Water Stability Limits and Degradation Pathways of Metal–Organic Frameworks

Safy

Amin

Haikal

et al. 2020

Chemistry A European J

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Ac omprehensive model to describe the water stability of prototypical metal-organic frameworks (MOFs) is derivedby combining different types of theoretical and experimental approaches. The resultsp rovide an insight into the early stages of water-triggered destabilization of MOFs and allow detailed pathways to be proposed for the degradation of different MOFs under aqueous conditions. The essential elements of the approach are computing the pK a values of coordinated water molecules and geometry relaxations. Variable-temperature and pH infrared spectroscopy techniques are used to corroborate the main findings. The model developed herein helpst oe xplain stabilityl imits ob-servedf or severalp rototypical MOFs, including MOF-5, HKUST-1, UiO-66, and MIL-101-Cr,i na queouss olutions,a nd thus, providesa ni nsighti nto the possible degradation pathways in acidic and basic environments. The formation of a metalh ydroxide through the autoprotolysis of metal-coordinated water molecules and the strength of carboxylatemetali nteractions are suggested to be two key players that govern stability in basic and acidic media, respectively.T he methodology presentedh erein can effectivelyg uide future efforts, which are especially significantf or in silico screening, for developing novel MOFs with enhanced aqueous stability.[a] M.Supporting information and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.

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“…Finally, it was demonstrated that in vivo chemo-photothermal treatment by sgc-8 aptamer-PDA-DOX/ZIF-8 and near infra-red illumination resulted in tumor elimination, without noticeable systemic toxicity and favorable biocompatibility. Yang et al applied a similar method for the surface functionalization of MOF, aiming to increase the hydrophobicity and water stability [101]. This time, it was based on the easy polymerization of free-base dopamine at room temperature under a mild oxygen atmosphere, affording a polydopamine layer on the MOF.…”

Section: Encapsulation Of Mof Into Polymersmentioning

confidence: 99%

Polymer/Metal Organic Framework (MOF) Nanocomposites for Biomedical Applications

et al. 2020

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The utilization of polymer/metal organic framework (MOF) nanocomposites in various biomedical applications has been widely studied due to their unique properties that arise from MOFs or hybrid composite systems. This review focuses on the types of polymer/MOF nanocomposites used in drug delivery and imaging applications. Initially, a comprehensive introduction to the synthesis and structure of MOFs and bio-MOFs is presented. Subsequently, the properties and the performance of polymer/MOF nanocomposites used in these applications are examined, in relation to the approach applied for their synthesis: (i) non-covalent attachment, (ii) covalent attachment, (iii) polymer coordination to metal ions, (iv) MOF encapsulation in polymers, and (v) other strategies. A critical comparison and discussion of the effectiveness of polymer/MOF nanocomposites regarding their synthesis methods and their structural characteristics is presented.

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A new post-synthetic polymerization strategy makes metal–organic frameworks more stable

Abstract: This work develops a new post-synthetic polymerization strategy to make various metal–organic frameworks more stable.

Cited by 132 publications

References 64 publications

Improving MOF stability: approaches and applications

Improving MOF stability: approaches and applications

Probing the Water Stability Limits and Degradation Pathways of Metal–Organic Frameworks

Polymer/Metal Organic Framework (MOF) Nanocomposites for Biomedical Applications

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