Metal-Organic Framework-Based Stimuli-Responsive Polymers

Metal-organic framework (MOF) based stimuli-responsive polymers (coordination polymers) exhibit reversible phase-transition behavior and demonstrate attractive properties that are capable of altering physical and/or chemical properties upon exposure to external stimuli, including pH, temperature, ions, etc., in a dynamic fashion. Thus, their conformational change can be imitated by the adsorption/desorption of target analytes (guest molecules), temperature or pressure changes, and electromagnetic field manipulation. MOF-based stimuli responsive polymers have received great attention due to their advanced optical properties and variety of applications. Herein, we summarized some recent progress on MOF-based stimuli-responsive polymers (SRPs) classified by physical and chemical responsiveness, including temperature, pressure, electricity, pH, metal ions, gases, alcohol and multi-targets.

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Coordination Modulated On-Off Switching of Flexibility in a Metal-organic Framework

Chemical Science ◽

10.1039/d1sc04712d ◽

2021 ◽

Author(s):

jorge Albalad ◽

Ricardo Peralta ◽

Michael Huxley ◽

Steven Tsoukatos ◽

Zhaolin Shi ◽

...

Keyword(s):

Structural Changes ◽

Metal Organic Framework ◽

Metal Organic Frameworks ◽

Adsorption Properties ◽

Stimuli Responsive ◽

Metal Organic ◽

External Stimuli ◽

Organic Framework

Stimuli-responsive metal-organic frameworks (MOFs) exhibit dynamic, and typically reversible, structural changes upon exposure to external stimuli. This process often induces drastic changes in their adsorption properties. Herein, we present a...

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Synthesis and Structure of a Clathrated Two-Dimensional Metal-Organic Framework: [Cd(4,4'-bpy)2(H2O)2](ClO4)2·(L)2·H2O (L = Bis(1-pyrazinylethylidene)hydrazine)

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc20080024 ◽

2008 ◽

Vol 73 (1) ◽

pp. 24-31

Author(s):

Dayu Wu ◽

Genhua Wu ◽

Wei Huang ◽

Zhuqing Wang

Keyword(s):

Metal Organic Framework ◽

Channel Structure ◽

Two Dimensional ◽

X Ray Diffraction ◽

Guest Molecules ◽

X Ray ◽

Square Planar ◽

Metal Organic ◽

Aqueous Meoh ◽

Organic Framework

The compound [Cd(4,4'-bpy)2(H2O)2](ClO4)2·(L)2 was obtained by the reaction of Cd(ClO4)2, bis(1-pyrazinylethylidene)hydrazine (L) and 4,4'-bipyridine in aqueous MeOH. Single-crystal X-ray diffraction has revealed its two-dimensional metal-organic framework. The 2-D layers superpose on each other, giving a channel structure. The square planar grids consist of two pairs of shared edges with Cd(II) ion and a 4,4'-bipyridine molecule each vertex and side, respectively. The square cavity has a dimension of 11.817 × 11.781 Å. Two guest molecules of bis(1-pyrazinylethylidene)hydrazine are clathrated in every hydrophobic host cavity, being further stabilized by π-π stacking and hydrogen bonding. The results suggest that the hydrazine molecules present in the network serve as structure-directing templates in the formation of crystal structures.

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Stimuli-Responsive Metal-Organic Framework (MOF) with Chemo-Switchable Properties for Colorimetric Detection of CHCl3

Chemistry - A European Journal ◽

10.1002/chem.201702127 ◽

2017 ◽

Vol 23 (51) ◽

pp. 12559-12564 ◽

Cited By ~ 33

Author(s):

Sayed Ali Akbar Razavi ◽

Mohammad Yaser Masoomi ◽

Ali Morsali

Keyword(s):

Metal Organic Framework ◽

Colorimetric Detection ◽

Stimuli Responsive ◽

Metal Organic ◽

Organic Framework

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Sensitive Colorimetric Aptasensor Based on Stimuli-Responsive Metal-Organic Framework Nano-Container and Trivalent DNAzyme for Zearalenone Determination in Food Samples

Food Chemistry ◽

10.1016/j.foodchem.2021.131145 ◽

2021 ◽

pp. 131145

Author(s):

Yuhan Sun ◽

Yan Lv ◽

Shuo Qi ◽

Yin Zhang ◽

Zhouping Wang

Keyword(s):

Metal Organic Framework ◽

Food Samples ◽

Stimuli Responsive ◽

Metal Organic ◽

Colorimetric Aptasensor ◽

Organic Framework

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The light-controlling of temperature-responsivity in stimuli-responsive polymers

Polymer Chemistry ◽

10.1039/c9py00890j ◽

2019 ◽

Vol 10 (42) ◽

pp. 5686-5720 ◽

Cited By ~ 33

Author(s):

Amin Abdollahi ◽

Hossein Roghani-Mamaqani ◽

Bahareh Razavi ◽

Mehdi Salami-Kalajahi

Keyword(s):

Chemical Properties ◽

Physical And Chemical Properties ◽

Stimuli Responsive ◽

Responsive Materials ◽

Stimuli Responsive Polymers ◽

Responsive Polymers ◽

Temperature Responsive ◽

The Media ◽

Physical And Chemical ◽

And Chemical Properties

Light-controlling of phase separation in temperature-responsive polymer solutions by using light-responsive materials for reversible controlling physical and chemical properties of the media with an out-of-system stimulus with tunable intensity.

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Solvent exchange in a metal–organic framework single crystal monitored by dynamicin situX-ray diffraction

Acta Crystallographica Section B Structural Science Crystal Engineering and Materials ◽

10.1107/s2052520617008447 ◽

2017 ◽

Vol 73 (4) ◽

pp. 669-674 ◽

Cited By ~ 5

Author(s):

Jordan M. Cox ◽

Ian M. Walton ◽

Gage Bateman ◽

Cassidy A. Benson ◽

Travis Mitchell ◽

...

Keyword(s):

Rational Design ◽

Metal Organic Framework ◽

X Ray Diffraction ◽

Guest Molecules ◽

Time Resolved ◽

Ethanol Solvate ◽

Significant Step ◽

Metal Organic ◽

Flexible Metal ◽

Organic Framework

Understanding the processes by which porous solid-state materials adsorb and release guest molecules would represent a significant step towards developing rational design principles for functional porous materials. To elucidate the process of liquid exchange in these materials, dynamicin situX-ray diffraction techniques have been developed which utilize liquid-phase chemical stimuli. Using these time-resolved diffraction techniques, the ethanol solvation process in a flexible metal–organic framework [Co(AIP)(bpy)0.5(H2O)]·2H2O was examined. The measurements provide important insight into the nature of the chemical transformation in this system including the presence of a previously unreported neat ethanol solvate structure.

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Stimuli-responsive polymers and their applications

Polymer Chemistry ◽

10.1039/c6py01585a ◽

2017 ◽

Vol 8 (1) ◽

pp. 127-143 ◽

Cited By ~ 434

Author(s):

Menglian Wei ◽

Yongfeng Gao ◽

Xue Li ◽

Michael J. Serpe

Keyword(s):

Drug Delivery ◽

Physical Properties ◽

Artificial Muscles ◽

Stimuli Responsive ◽

Stimuli Responsive Polymers ◽

Responsive Polymers ◽

Responsive Polymer ◽

External Stimuli

Responsive polymer-based materials are capable of altering their chemical and/or physical properties upon exposure to external stimuli. This review highlights their use for sensing and biosensing, drug delivery, and artificial muscles/actuators.

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