Fabrication of Metal-Organic Framework-Containing Silica-Colloidal Crystals for Vapor Sensing

2011 ◽  
Vol 23 (38) ◽  
pp. 4449-4452 ◽  
Author(s):  
Guang Lu ◽  
Omar K. Farha ◽  
Lauren E. Kreno ◽  
Paul M. Schoenecker ◽  
Krista S. Walton ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Colloidal Crystals ◽  
Vapor Sensing ◽  
Metal Organic ◽  
Organic Framework ◽  
Silica Colloidal Crystals

Polyhedral Metal-Organic Framework Monolayer Colloidal Crystals with Sharpened and Crystal Facet-Dependent Selectivity for Organic Vapor Sensing

2021 ◽  
Author(s):  
Shimo Yu ◽  
Xiang Wang ◽  
Xiuling Jiao ◽  
Cheng Li ◽  
Dairong Chen
Keyword(s):  
Optical Sensors ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Colloidal Crystals ◽  
Crystal Facet ◽  
Organic Vapor ◽  
Vapor Sensing ◽  
Metal Organic ◽  
Organic Framework

Metal-organic frameworks (MOFs) are potential sensing materials with inherently sensitivity for molecule detection. However, reliable and reproducible MOF-based optical sensors with well-defined selectivity suitable for practical situations are rarely reported,...

Photonic metal–organic framework composite spheres: a new kind of optical material with self-reporting molecular recognition

Nanoscale ◽  
2014 ◽  
Vol 6 (20) ◽  
pp. 11995-12001 ◽  
Author(s):  
Jiecheng Cui ◽  
Ning Gao ◽  
Chen Wang ◽  
Wei Zhu ◽  
Jian Li ◽  
...  
Keyword(s):  
Molecular Recognition ◽  
Metal Organic Framework ◽  
Colloidal Crystals ◽  
Spatial Arrangement ◽  
Optical Material ◽  
General Strategy ◽  
New Class ◽  
Metal Organic ◽  
Host Matrices ◽  
Organic Framework

By using spherical colloidal crystals as 3D-ordered host matrices, a general strategy for efficient spatial arrangement of MOF materials has been developed, affording a new class of highly tunable MOF composite spheres.

scholarly journals Luminescent Metal–Organic Framework Thin Films: From Preparation to Biomedical Sensing Applications

Crystals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 338 ◽  
Author(s):  
Zhengluan Liao ◽  
Tifeng Xia ◽  
Enyan Yu ◽  
Yuanjing Cui
Keyword(s):  
Thin Films ◽  
Metal Organic Framework ◽  
Electronic Devices ◽  
Vapor Sensing ◽  
Biomedical Sensing ◽  
Sensing Applications ◽  
Composition And Structure ◽  
Metal Organic ◽  
Application Fields ◽  
Organic Framework

Metal-organic framework (MOF) thin films are receiving increasing attention in a number of different application fields, such as optoelectronics, gas separation, catalysis electronic devices, and biomedicine. In particular, their tunable composition and structure, accessible metal sites and potential for post-synthetic modification for molecular recognition make MOF thin films promising candidates for biosensing applications. Compared with solution-based powdery probes, film-based probes have distinct advantages of good stability and portability, tunable shape and size, real-time detection, non-invasion, extensive suitability in gas/vapor sensing, and recycling. In this review, we summarize the recent advances in luminescent MOF thin films, including the fabrication methods and origins of luminescence. Specifically, luminescent MOF thin films as biosensors for temperature, ions, gases and biomolecules are highlighted.

Advancing Metal‐Organic Frameworks toward Smart Sensing: Enhanced Fluorescence by a Photonic Metal‐Organic Framework for Organic Vapor Sensing

2020 ◽  
Vol 8 (19) ◽  
pp. 2000961
Author(s):  
Joseph F. Olorunyomi ◽  
Muhammad M. Sadiq ◽  
Michael Batten ◽  
Kristina Konstas ◽  
Dehong Chen ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Enhanced Fluorescence ◽  
Organic Vapor ◽  
Vapor Sensing ◽  
Metal Organic ◽  
Smart Sensing ◽  
Organic Framework

scholarly journals Selective sensing and visualization of pesticides by ABW-type metal–organic framework based luminescent sensors

RSC Advances ◽  
2019 ◽  
Vol 9 (66) ◽  
pp. 38469-38476
Author(s):  
Ling Di ◽  
Zhengqiang Xia ◽  
Jian Li ◽  
Zhongxing Geng ◽  
Chun Li ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Luminescent Sensors ◽  
Vapor Sensing ◽  
Metal Organic ◽  
Organic Framework

A novel ABW-type luminescent metal–organic framework was applied for selective visualization sensing of trace amounts of 2,6-dichloro-4-nitroaniline and vapor sensing of trifluralin.

Multifunctional metal–organic framework heterostructures for enhanced cancer therapy

2021 ◽  
Author(s):  
Jintong Liu ◽  
Jing Huang ◽  
Lei Zhang ◽  
Jianping Lei
Keyword(s):  
Cancer Therapy ◽  
General Principle ◽  
Biomedical Applications ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Functional Modulation ◽  
Organic Framework

We review the general principle of the design and functional modulation of nanoscaled MOF heterostructures, and biomedical applications in enhanced therapy.

Magnetic Ordering via Itinerant Ferromagnetism in a Metal-Organic Framework

2020 ◽  
Author(s):  
Jesse Park ◽  
Brianna Collins ◽  
Lucy Darago ◽  
Tomce Runcevski ◽  
Michael Aubrey ◽  
...  
Keyword(s):  
Charge Transport ◽  
Magnetic Order ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Magnetic Ordering ◽  
Double Exchange ◽  
Itinerant Ferromagnetism ◽  
Organic Solids ◽  
Metal Organic ◽  
Organic Framework

<b>Materials that combine magnetic order with other desirable physical attributes offer to revolutionize our energy landscape. Indeed, such materials could find transformative applications in spintronics, quantum sensing, low-density magnets, and gas separations. As a result, efforts to design multifunctional magnetic materials have recently moved beyond traditional solid-state materials to metal–organic solids. Among these, metal–organic frameworks in particular bear structures that offer intrinsic porosity, vast chemical and structural programmability, and tunability of electronic properties. Nevertheless, magnetic order within metal–organic frameworks has generally been limited to low temperatures, owing largely to challenges in creating strong magnetic exchange in extended metal–organic solids. Here, we employ the phenomenon of itinerant ferromagnetism to realize magnetic ordering at <i>T</i><sub>C</sub> = 225 K in a mixed-valence chromium(II/III) triazolate compound, representing the highest ferromagnetic ordering temperature yet observed in a metal–organic framework. The itinerant ferromagnetism is shown to proceed via a double-exchange mechanism, the first such observation in any metal–organic material. Critically, this mechanism results in variable-temperature conductivity with barrierless charge transport below <i>T</i><sub>C</sub> and a large negative magnetoresistance of 23% at 5 K. These observations suggest applications for double-exchange-based coordination solids in the emergent fields of magnetoelectrics and spintronics. Taken together, the insights gleaned from these results are expected to provide a blueprint for the design and synthesis of porous materials with synergistic high-temperature magnetic and charge transport properties. </b>

Solvent-Free Powder Synthesis and MOF-CVD Thin Films of the Mesoporous Metal-Organic Framework MAF-6

2019 ◽  
Author(s):  
Timothée Stassin ◽  
Ivo Stassen ◽  
Joao Marreiros ◽  
Alexander John Cruz ◽  
Rhea Verbeke ◽  
...  
Keyword(s):  
Vapor Phase ◽  
Metal Organic Framework ◽  
Chemical Vapor ◽  
Uptake Capacity ◽  
Powder Synthesis ◽  
Crystalline Films ◽  
Metal Organic ◽  
Mesoporous Metal ◽  
First Time ◽  
Organic Framework

A simple solvent- and catalyst-free method is presented for the synthesis of the mesoporous metal-organic framework (MOF) MAF-6 (RHO-Zn(eIm)2) based on the reaction of ZnO with 2-ethylimidazole vapor at temperatures ≤ 100 °C. By translating this method to a chemical vapor deposition (CVD) protocol, mesoporous crystalline films could be deposited for the first time entirely from the vapor phase. A combination of PALS and Kr physisorption measurements confirmed the porosity of these MOF-CVD films and the size of the MAF-6 supercages (diam. ~2 nm), in close agreement with powder data and calculations. MAF-6 powders and films were further characterized by XRD, TGA, SEM, FTIR, PDF and EXAFS. The exceptional uptake capacity of the mesoporous MAF-6 in comparison to the microporous ZIF-8 is demonstrated by vapor-phase loading of a molecule larger than the ZIF-8 windows.

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