scholarly journals Synthesis of Al-Based Metal-Organic Framework in Water With Caffeic Acid Ligand and NaOH as Linker Sources With Highly Efficient Anticancer Treatment

2021 ◽  
Vol 9 ◽  
Author(s):  
Malihe Zeraati ◽  
Abbas Rahdar ◽  
Dora I. Medina ◽  
Ghasem Sargazi
Keyword(s):  
Electron Microscopy ◽  
Green Synthesis ◽  
Metal Organic Framework ◽  
Cost Effective ◽  
Spherical Particles ◽  
Anticancer Properties ◽  
Synthesis Route ◽  
Anticancer Treatment ◽  
Metal Organic ◽  
Organic Framework

In this study, novel nanostructures of aluminum base metal-organic framework (Al-MOF) samples were synthesized using a sustainable, non-toxic, and cost-effective green synthesis route. Satureja hortensis extract was used as an effective source of linker for the development of the Al-MOF structures. The Fourier-transformed infrared (FTIR) spectrum confirmed the presence of characterization bonds related to the Al-MOF nanostructures synthesized by the green synthesis route. The scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analyses revealed that the sample synthesized by Na2-CA was composed of multilayers, although it was agglomerated, but it had dispersed and occurred in spherical particles, indicating active organic matter. N2 adsorption/desorption isotherms demonstrated the significant porosity of the Al-MOF samples that facilitate the high potential of these nanostructures in medical applications. The anticancer treatment of Al-MOF samples was performed with different concentrations using the MTT standard method with untreated cancer cells for 24 and 48 h periods. The results exhibited the significant anticancer properties of Al-MOF samples developed in this study when compared with other MOF samples. Thus, the development of a novel Al-MOF and its application as a natural linker can influence the anticancer treatment of the samples. According to the results, the products developed in this study can be used in more applications such as biosensors, catalysts, and novel adsorbents.

Metal-Organic Framework Derived NiSe2/CeO2 Nanocomposite as a High-Performance Electrocatalyst for Oxygen Evolution Reaction (OER)

2021 ◽  
Author(s):  
Davood Taherinia ◽  
Seyyed Heydar Moravvej ◽  
Mohammad Moazzeni ◽  
Elham Akbarzadeh
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Metal Organic Framework ◽  
Cost Effective ◽  
Clean Technologies ◽  
Metal Organic ◽  
Organic Framework

The development of efficient and cost-effective catalysts for the oxygen evolution reaction is highly desirable for applications that are based on sustainable and clean technologies. In this study, we report...

scholarly journals MIL-91(Ti), a small pore metal–organic framework which fulfils several criteria: an upscaled green synthesis, excellent water stability, high CO2 selectivity and fast CO2 transport

2016 ◽  
Vol 4 (4) ◽  
pp. 1383-1389 ◽  
Author(s):  
Virginie Benoit ◽  
Renjith S. Pillai ◽  
Angelica Orsi ◽  
Périne Normand ◽  
Hervé Jobic ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Metal Organic Framework ◽  
Water Stability ◽  
High Co2 ◽  
Co2 Transport ◽  
Small Pore ◽  
Metal Organic ◽  
Co2 Selectivity ◽  
Organic Framework

MIL-91(Ti) is shown to be one of the very few MOFs of real interest for CO2 capture.

scholarly journals A Zirconium Metal-Organic Framework with SOC Topological Net for Catalytic Peptide Bond Hydrolysis

2021 ◽  
Author(s):  
Sujing Wang ◽  
Antoine Tissot ◽  
Guillaume Maurin ◽  
Tatjana Parac-Vogt ◽  
Christian Serre ◽  
...  
Keyword(s):  
Active Sites ◽  
Metal Organic Framework ◽  
Cost Effective ◽  
Peptide Bond ◽  
Catalytic Performance ◽  
Wide Range ◽  
Horse Heart Myoglobin ◽  
Metal Organic ◽  
Effective Synthesis ◽  
Organic Framework

<div>The discovery of nanozymes for selective cleavage of proteins would boost the emerging areas of modern proteomics, however, the development of efficient and reusable artificial catalysts for peptide bond hydrolysis is challenging. Here we report the detailed catalytic properties of a microporous zirconium carboxylate metal-organic framework, MIP-201, in promoting peptide bond hydrolysis in a simple dipeptide, as well as in horse-heart myoglobin (Mb) protein that consists of 153 amino acids. We demonstrate that MIP-201 features an excellent catalytic activity and selectivity, a good tolerance toward reaction conditions covering a wide range of different pH values, and importantly, an exceptional recycling ability associated with easy regeneration process. Taking into account the excellent catalytic performance of MIP-201 and its other advantages such as 6-connected Zr6 cluster active sites, the green, scalable and cost-effective synthesis, and an outstanding chemical and architectural stability, our finding suggests that MIP-201 may be a promising and practical alternative to the current commercially available catalysts for peptide bond hydrolysis.</div>

scholarly journals A Zirconium Metal-Organic Framework with SOC Topological Net for Catalytic Peptide Bond Hydrolysis

2021 ◽  
Author(s):  
Sujing Wang ◽  
Antoine Tissot ◽  
Guillaume Maurin ◽  
Tatjana Parac-Vogt ◽  
Christian Serre ◽  
...  
Keyword(s):  
Active Sites ◽  
Metal Organic Framework ◽  
Cost Effective ◽  
Peptide Bond ◽  
Catalytic Performance ◽  
Wide Range ◽  
Horse Heart Myoglobin ◽  
Metal Organic ◽  
Effective Synthesis ◽  
Organic Framework

<div>The discovery of nanozymes for selective cleavage of proteins would boost the emerging areas of modern proteomics, however, the development of efficient and reusable artificial catalysts for peptide bond hydrolysis is challenging. Here we report the detailed catalytic properties of a microporous zirconium carboxylate metal-organic framework, MIP-201, in promoting peptide bond hydrolysis in a simple dipeptide, as well as in horse-heart myoglobin (Mb) protein that consists of 153 amino acids. We demonstrate that MIP-201 features an excellent catalytic activity and selectivity, a good tolerance toward reaction conditions covering a wide range of different pH values, and importantly, an exceptional recycling ability associated with easy regeneration process. Taking into account the excellent catalytic performance of MIP-201 and its other advantages such as 6-connected Zr6 cluster active sites, the green, scalable and cost-effective synthesis, and an outstanding chemical and architectural stability, our finding suggests that MIP-201 may be a promising and practical alternative to the current commercially available catalysts for peptide bond hydrolysis.</div>

scholarly journals Enhanced Water Stability and Photoresponsivity in Metal-Organic Framework (MOF): A Potential Tool to Combat Drug-resistant Bacteria

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Saleh A. Ahmed ◽  
Damayanti Bagchi ◽  
Hanadi A. Katouah ◽  
Md. Nur Hasan ◽  
Hatem M. Altass ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Charge Transfer ◽  
Metal Organic Framework ◽  
Resistant Bacteria ◽  
Ros Generation ◽  
Water Stability ◽  
Equal Proportion ◽  
Electronic Band ◽  
Metal Organic ◽  
Organic Framework

AbstractIn this work, we have successfully synthesized a bimetallic (Zinc and Cobalt) Zeolitic Imidazolate Framework (Zn50Co50-ZIF), a class in a wider microporous Metal-Organic Framework (MOF) family. The synthesized nanostructures maintain both water stability like ZIF-8 (solely Zn containing) and charge transfer electronic band in the visible optical spectrum as ZIF-67 (solely Co containing). Crystal structure from XRD, high resolution transmission electron microscopy (HRTEM) followed by elemental mapping (EDAX) confirm structural stability and omnipresence of the metal atoms (Zn and Co) across the nanomaterial with equal proportion. Existence of charge transfer state consistent with ZIF67 and intact ultrafast excited state dynamics of the imidazolate moiety in both ZIF-8 and ZIF-67, is evidenced from steady state and time resolved optical spectroscopy. The thermal and aqueous stabilities of Zn50Co50-ZIF are found to be better than ZIF-67 but comparable to ZIF-8 as evidenced by solubility, scanning electron microscopy (SEM) and XRD studies of the material in water. We have evaluated the photoinduced ROS generation by the mixed ZIF employing dichloro-dihydro-fluorescein diacetate (DCFH-DA) assay. We have also explored the potentiality of the synthesized material for the alternate remediation of methicillin resistant Staphylococcus aureus (MRSA) infection through the photoinduced reactive oxygen species (ROS) generation and methylene blue (MB) degradation kinetics.

scholarly journals Co3O4Electrode Prepared by Using Metal-Organic Framework as a Host for Supercapacitors

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Jiaqiang Jiang ◽  
Fuxiang Wei ◽  
Genxi Yu ◽  
Yanwei Sui
Keyword(s):  
Electron Microscopy ◽  
Specific Capacitance ◽  
Metal Organic Framework ◽  
High Specific Capacitance ◽  
Cobalt Nitrate ◽  
High Rate ◽  
Phase Method ◽  
Simple Liquid ◽  
Metal Organic ◽  
Organic Framework

Co3O4nanoparticles were prepared from cobalt nitrate that was accommodated in the pores of a metal-organic framework (MOF) ZIF-8 (Zn(MeIM)2, MeIM = 2-methylimidazole) by using a simple liquid-phase method. Analysis by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) showed that the obtained Co3O4was composed of separate nanoparticles with a mean size of 30 nm. The obtained Co3O4nanoparticles exhibited superior electrochemical property. Co3O4electrode exhibited a maximum specific capacitance of 189.1 F g−1at the specific current of 0.2 A g−1. Meanwhile, the Co3O4electrode possessed the high specific capacitance retention ratio at the current density ranging from 0.2 to 1.0 A g−1, thereby indicating that Co3O4electrode suited high-rate charge/discharge.

Metal–organic framework@silica as a stationary phase sorbent for rapid and cost-effective removal of hexavalent chromium

2018 ◽  
Vol 6 (6) ◽  
pp. 2742-2751 ◽  
Author(s):  
Worood A. El-Mehalmey ◽  
Ahmed H. Ibrahim ◽  
Arwa A. Abugable ◽  
Mohamed H. Hassan ◽  
Rana R. Haikal ◽  
...  
Keyword(s):  
Stationary Phase ◽  
Hexavalent Chromium ◽  
Metal Organic Framework ◽  
Cost Effective ◽  
Amino Derivative ◽  
Solid Sorbent ◽  
One Pot ◽  
Effective Removal ◽  
Metal Organic ◽  
Organic Framework

A one-pot synthesis is described to construct a composite of the amino-derivative Zr carboxylate metal–organic framework and silica gel (UiO-66-NH2@silica) as an efficient solid sorbent for hexavalent chromium.

scholarly journals Highly Efficient Nanocarbon Coating Layer on the Nanostructured Copper Sulfide-Metal Organic Framework Derived Carbon for Advanced Sodium-Ion Battery Anode

Materials ◽  
2019 ◽  
Vol 12 (8) ◽  
pp. 1324 ◽  
Author(s):  
Chiwon Kang ◽  
Yongwoo Lee ◽  
Ilhwan Kim ◽  
Seungmin Hyun ◽  
Tae Hoon Lee ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Copper Sulfide ◽  
Large Scale ◽  
Metal Organic Framework ◽  
Specific Capacity ◽  
Chemical Properties ◽  
Sodium Ion ◽  
Physico Chemical ◽  
Metal Organic ◽  
Organic Framework

High theoretical capacity and low-cost copper sulfide (CuxS)-based anodes have gained great attention for advanced sodium-ion batteries (SIBs). However, their practical application may be hindered due to their unstable cycling performance and problems with the dissolution of sodium sulfides (NaxS) into electrolyte. Here, we employed metal organic framework (MOF-199) as a sacrificial template to fabricate nanoporous CuxS with a large surface area embedded in the MOF-derived carbon network (CuxS-C) through a two-step process of sulfurization and carbonization via H2S gas-assisted plasma-enhanced chemical vapor deposition (PECVD) processing. Subsequently, we uniformly coated a nanocarbon layer on the Cu1.8S-C through hydrothermal and subsequent annealing processes. The physico-chemical properties of the nanocarbon layer were revealed by the analytical techniques of high-resolution transmission electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDS), and scanning electron microscopy (SEM). We acquired a higher SIB performance (capacity retention (~93%) with a specific capacity of 372 mAh/g over 110 cycles) of the nanoporous Cu1.8S-C/C core/shell anode materials than that of pure Cu1.8S-C. This encouraging SIB performance is attributed to the key roles of a nanocarbon layer coated on the Cu1.8S-C to accommodate the volume variation of the Cu1.8S-C anode structure during cycling, enhance electrical conductivity and prevent the dissolution of NaxS into the electrolyte. With these physico-chemical and electrochemical properties, we ensure that the Cu1.8S-C/C structure will be a promising anode material for large-scale and advanced SIBs.

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