When drug nanocarriers miss their target: extracellular diffusion and cell uptake are not enough to be effective

2021 ◽  
Author(s):  
Vincent Pautu ◽  
Heng Zhao ◽  
Angelika Mielcarek ◽  
Anna Balasso ◽  
Patrick Couvreur ◽  
...  

Biocompatible nanoscale iron carboxylate metal organic frameworks (nanoMOFs) already demonstrated their ability to efficiently deliver various therapeutic molecules. The versatility of the synthetic methods and functionalization strategies could further improve...

2021 ◽  
Vol 33 (5) ◽  
pp. 956-962
Author(s):  
Chandan Adhikari ◽  
Rehana Farooq

Metal organic frameworks (MOFs) are one of those compounds which have drawn attention in various applications due to their several interesting properties like tunable shape, size, pore size, easy functionalization, high surface area, pore volume, etc. Metal organic frameworks due to their uniform structures, tunable porosity, wide variety and stability on various topology, geometry, dimension and chemical functions of the molecular network give a remarkable structural diversity in comparison to other porous materials. This enables scientists to handle numerous framework structures, porosity and functionality effectively. The unique structural architecture and tunable properties of MOF’s makes them an interesting hybrid material consisting of organic and inorganic materials. MOF can be randomly constructed like Lego bricks and superior in terms of versatility in comparisson to other porous materials. A number of MOFs containing a wide variety of metal e.g. zinc, copper, iron, aluminium, magnesium, chromium, zirconium, gadolinium, manganese are gaining rapid growth in commercial markets for gas storage, adsorption, separation and catalytic applications. This concise review emphasizes various synthetic methods e.g. solvothermal process, hydrothermal synthesis, electrochemical synthesis, microwave synthesis, sonochemical synthesis, mechanochemical synthesis, of metal organic framework developed in the last few decades. It also addresses various applications of metal organic framework e.g. hydrogen storage, gas adsorption, drug delivery systems and bioimaging agents, biocatalysts, biosensors, electrochemical sensors, etc. It also comments on various challenges and futuristic applications of metal organic frameworks in various field e.g. liquid wate management, gaseous waste management, sunlight assisted catalysis, water purification, building materials, electronic devices, battery technologies, targeted drug delivery, solar cells, etc. of science and technology in coming decades.


2021 ◽  
Vol 9 ◽  
Author(s):  
Bo Huang ◽  
Zhe Tan

The host-guest chemistry of metal–organic frameworks (MOFs) has been attracting increasing attention owing to the outstanding properties derived from MOFs-guests combinations. However, there are large difficulties involved in the syntheses of the host-guest MOF systems with air-sensitive metal complexes. In addition, the behaviors on host-guest interactions in the above systems at high temperature are not clear. This study reported the synthetic methods for host-guest systems of metal–organic framework and air-sensitive metal complexes via a developed chemical vapor infiltration process. With the synchrotron X-ray powder diffraction (XRPD) measurements and Fourier Transform infrared spectroscopy (FTIR), the successful loadings of Fe(CO)5 in HKUST-1 and NH2-MIL-101(Al) have been confirmed. At high temperatures, the structural and chemical componential changes were investigated in detail by XRPD and FTIR measurements. HKUST-1 was proven to have strong interaction with Fe(CO)5 and resulted in a heavy loading amount of 63.1 wt%, but too strong an interaction led to deformation of HKUST-1 sub-unit under heating conditions. NH2-MIL-101(Al), meanwhile, has a weaker interaction and is chemically inert to Fe(CO)5 at high temperatures.


RSC Advances ◽  
2019 ◽  
Vol 9 (56) ◽  
pp. 32472-32475
Author(s):  
Marianna Porcino ◽  
Ioanna Christodoulou ◽  
Mai Dang Le Vuong ◽  
Ruxandra Gref ◽  
Charlotte Martineau-Corcos

Nano-sized metal–organic frameworks (nanoMOFs), with engineered surfaces to enhance the targeting of the drug delivery, have proven efficient as drug nanocarriers.


2017 ◽  
Vol 53 (11) ◽  
pp. 1840-1843 ◽  
Author(s):  
Yan Zhang ◽  
Chaoqun Liu ◽  
Faming Wang ◽  
Zhen Liu ◽  
Jinsong Ren ◽  
...  

Iron carboxylate metal–organic frameworks supporting CpG ODNs were fabricated to enhance both the immune response of the CpG ODNs and the ability to image them using T2-magnetic resonance imaging.


Author(s):  
Xuan Huang ◽  
Xu Sun ◽  
Weili Wang ◽  
Qing Shen ◽  
Qian Shen ◽  
...  

Metal-Organic Frameworks (MOFs) are constructed from metal ions/cluster nodes and functional organic ligands through coordination bonds. Owing to the advantages of diverse synthetic methods, easy modification after synthesis, large adsorption...


Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 310
Author(s):  
Catherine P. Raptopoulou

Metal-organic frameworks represent a porous class of materials that are build up from metal ions or oligonuclear metallic complexes and organic ligands. They can be considered as sub-class of coordination polymers and can be extended into one-dimension, two-dimensions, and three-dimensions. Depending on the size of the pores, MOFs are divided into nanoporous, mesoporous, and macroporous items. The latter two are usually amorphous. MOFs display high porosity, a large specific surface area, and high thermal stability due to the presence of coordination bonds. The pores can incorporate neutral molecules, such as solvent molecules, anions, and cations, depending on the overall charge of the MOF, gas molecules, and biomolecules. The structural diversity of the framework and the multifunctionality of the pores render this class of materials as candidates for a plethora of environmental and biomedical applications and also as catalysts, sensors, piezo/ferroelectric, thermoelectric, and magnetic materials. In the present review, the synthetic methods reported in the literature for preparing MOFs and their derived materials, and their potential applications in environment, energy, and biomedicine are discussed.


Author(s):  
Jianping Tang ◽  
Zhenxin Liang ◽  
Mengyi Huang ◽  
Shaodong Su ◽  
Yuehong Wen ◽  
...  

Metal–organic frameworks (MOFs) have been demonstrated as an excellent host matrix to encapsulate diverse guest molecules for fabricating functional composite materials. Many synthetic methods have been explored to prepare white-light...


2017 ◽  
Vol 73 (a2) ◽  
pp. C1281-C1281
Author(s):  
Patricia Horcajada ◽  
Tania Hidalgo ◽  
Monica Gimenez-Marques ◽  
Rosana Simon-Vazquez ◽  
Jose Avila ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (80) ◽  
pp. 76861-76866 ◽  
Author(s):  
Komal Sethi ◽  
Shalini Sharma ◽  
Indrajit Roy

We report the synthesis, characterisation, and magnetically controlled drug delivery applications of drug-encapsulated iron carboxylate nanoscale metal organic frameworks (NMOFs).


2017 ◽  
Vol 41 (23) ◽  
pp. 14030-14043 ◽  
Author(s):  
Ha L. Nguyen

The chemistry of Ti-based MOFs, including their synthetic methods, crystal structures, topological evaluation, and promising applications, is precisely summarized and discussed.


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