Unexpected Molecular Sieving Properties of Zeolitic Imidazolate Framework-8

2012 ◽  
Vol 3 (16) ◽  
pp. 2130-2134 ◽  
Author(s):  
Chen Zhang ◽  
Ryan P. Lively ◽  
Ke Zhang ◽  
Justin R. Johnson ◽  
Oguz Karvan ◽  
...  
Keyword(s):  
Zeolitic Imidazolate Framework ◽  
Molecular Sieving

Effects of Molecular Sieving and Electrostatic Enhancement in the Adsorption of Organic Compounds on the Zeolitic Imidazolate Framework ZIF-8

Langmuir ◽  
2010 ◽  
Vol 26 (19) ◽  
pp. 15625-15633 ◽  
Author(s):  
Matthew T. Luebbers ◽  
Tianjiao Wu ◽  
Lingjuan Shen ◽  
Richard I. Masel
Keyword(s):  
Organic Compounds ◽  
Zeolitic Imidazolate Framework ◽  
Molecular Sieving

scholarly journals Paralyzed membrane: Current-driven synthesis of a metal-organic framework with sharpened propene/propane separation

2018 ◽  
Vol 4 (10) ◽  
pp. eaau1393 ◽  
Author(s):  
Sheng Zhou ◽  
Yanying Wei ◽  
Libo Li ◽  
Yifan Duan ◽  
Qianqian Hou ◽  
...  
Keyword(s):  
Large Scale ◽  
Metal Organic Framework ◽  
Great Promise ◽  
Cubic Phase ◽  
Membrane Composition ◽  
Zeolitic Imidazolate Framework ◽  
Metal Organic ◽  
Dynamics Simulations ◽  
Molecular Sieving ◽  
Organic Framework

Metal-organic framework (MOF) membranes show great promise for propene/propane separation, yet a sharp molecular sieving has not been achieved due to their inherent linker mobility. Here, zeolitic imidazolate framework ZIF-8–type membranes with suppressed linker mobility are prepared by a fast current–driven synthesis (FCDS) strategy within 20 min, showing sharpened molecular sieving for propene/propane separation with a separation factor above 300. During membrane synthesis, the direct current promotes the metal ions and ligands to assemble into inborn-distorted and stiffer frameworks with ZIF-8_Cm (a newly discovered polymorph of ZIF-8) accounting for 60 to 70% of the membrane composition. Molecular dynamics simulations further verify that ZIF-8_Cm is superior to ZIF-8_I 4¯3m (the common cubic phase) for propene/propane separation. FCDS holds great potential to produce high-quality, ultrathin MOF membranes on a large scale.

Synthesis and seawater desalination of molecular sieving zeolitic imidazolate framework membranes

Desalination ◽  
2016 ◽  
Vol 385 ◽  
pp. 75-82 ◽  
Author(s):  
Yaqiong Zhu ◽  
Krishna M. Gupta ◽  
Qian Liu ◽  
Jianwen Jiang ◽  
Jürgen Caro ◽  
...  
Keyword(s):  
Seawater Desalination ◽  
Zeolitic Imidazolate Framework ◽  
Molecular Sieving

Zeolitic Imidazolate Framework/Graphene Oxide Hybrid Nanosheets as Seeds for the Growth of Ultrathin Molecular Sieving Membranes

2015 ◽  
Vol 55 (6) ◽  
pp. 2048-2052 ◽  
Author(s):  
Yaoxin Hu ◽  
Jing Wei ◽  
Yan Liang ◽  
Huacheng Zhang ◽  
Xiwang Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Zeolitic Imidazolate Framework ◽  
Molecular Sieving

Zeolitic Imidazolate Framework Membrane with Molecular Sieving Properties by Microwave-Assisted Solvothermal Synthesis

2009 ◽  
Vol 131 (44) ◽  
pp. 16000-16001 ◽  
Author(s):  
Helge Bux ◽  
Fangyi Liang ◽  
Yanshuo Li ◽  
Janosch Cravillon ◽  
Michael Wiebcke ◽  
...  
Keyword(s):  
Solvothermal Synthesis ◽  
Zeolitic Imidazolate Framework ◽  
Microwave Assisted ◽  
Molecular Sieving

Zeolitic Imidazolate Framework/Graphene Oxide Hybrid Nanosheets as Seeds for the Growth of Ultrathin Molecular Sieving Membranes

2015 ◽  
Vol 128 (6) ◽  
pp. 2088-2092 ◽  
Author(s):  
Yaoxin Hu ◽  
Jing Wei ◽  
Yan Liang ◽  
Huacheng Zhang ◽  
Xiwang Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Zeolitic Imidazolate Framework ◽  
Molecular Sieving

Theoretical and Experimental Evaluation of the Effect of Fluorinated Substituent on the Topological Landscape and Thermodynamic Stability of Zeolitic Imidazolate Framework Polymorphs

2018 ◽  
Author(s):  
Mihails Arhangelskis ◽  
Athanassis Katsenis ◽  
Novendra Novendra ◽  
Zamirbek Akimbekov ◽  
Dayaker Gandrath ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Mechanochemical Synthesis ◽  
Thermodynamic Stability ◽  
Experimental Evaluation ◽  
Density Functional ◽  
Theoretical Calculations ◽  
Zeolitic Imidazolate Framework ◽  
Functional Theory ◽  
Calorimetric Measurements ◽  
And Calorimetry

By combining mechanochemical synthesis and calorimetry with theoretical calculations, we demonstrate that dispersion-corrected periodic density functional theory (DFT) can accurately survey the topological landscape and predict relative energies of polymorphs for a previously inaccessible fluorine-substituted zeolitic imidazolate framework (ZIF). Experimental screening confirmed two out of three theoretically anticipated polymorphs, and the calorimetric measurements provided an excellent match to theoretically calculated energetic difference between them.<br>

Enhanced Stability and Controlled Delivery of MOF Encapsulated Vaccines and Their Immunogenic Response In Vivo

2018 ◽  
Author(s):  
Michael Luzuriaga ◽  
Raymond P. Welch ◽  
Madushani Dharmawardana ◽  
Candace Benjamin ◽  
Shaobo Li ◽  
...  
Keyword(s):  
Viral Vector ◽  
Controlled Delivery ◽  
Conformational Structure ◽  
Spectroscopy Analysis ◽  
Zeolitic Imidazolate Framework ◽  
Structural Conformation ◽  
Depth Study ◽  
Viral Nanoparticle

<div><div><div><p>Vaccines have an innate tendency to lose their structural conformation upon environmental and chemical stressors. A loss in conformation reduces the therapeutic ability to prevent the spread of a pathogen. Herein, we report an in-depth study of zeolitic imidazolate framework-8 (ZIF-8) and its ability to provide protection for a model viral vector against dena- turing conditions. The immunoassay and spectroscopy analysis together demonstrate enhanced thermal and chemical stability to the conformational structure of the encapsulated viral nanoparticle. The long-term biological activity of this virus-ZIF composite was investigated in animal models to further elucidate the integrity of the encapsulated virus, the bio-safety, and immunogenicity of the overall composite. Additionally, histological analysis found no observable tissue damage in the skin or vital organs in mice, following multiple subcutaneous administrations. This study shows that ZIF-based protein composites are strong candidates for improved preservation of proteinaceous drugs, are biocompatible, and capable of controlling the release and adsorption of drugs in vivo.</p></div></div></div>

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