High-performance catalytic reduction of 4-nitrophenol to 4-aminophenol using M-BDC (M = Ag, Co, Cr, Mn, and Zr) metal-organic frameworks

Ehsani, Atefeh; Nejatbakhsh, Siyamak; Soodmand, Ahmadreza Mohammadian; Farshchi, Mahdi Ebrahimi; Aghdasinia, Hassan

doi:10.1016/j.envres.2023.115736

Cited by 39 publications

(6 citation statements)

References 37 publications

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“…In all these geometry variants, metals of similar valency can replace one another to make isoreticular MOFs. This has been well-demonstrated in literature, as popular linkers like 1,4-benzenedicarboxylic acid (BDC) and 2,5-dihydroxy-1,4-benzenedicarboxylic acid (DHBDC) form many MOFs with different metals. − …”

Section: Unique Structural Features Of Mofs/cofsmentioning

confidence: 82%

The Promise and Potential of Metal–Organic Frameworks and Covalent Organic Frameworks in Vaccine Nanotechnology

Wijesundara,

Howlett,

Kumari

et al. 2024

Chem. Rev.

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The immune system's complexity and ongoing evolutionary struggle against deleterious pathogens underscore the value of vaccination technologies, which have been bolstering human immunity for over two centuries. Despite noteworthy advancements over these 200 years, three areas remain recalcitrant to improvement owing to the environmental instability of the biomolecules used in vaccines�the challenges of formulating them into controlled release systems, their need for constant refrigeration to avoid loss of efficacy, and the requirement that they be delivered via needle owing to gastrointestinal incompatibility. Nanotechnology, particularly metal−organic frameworks (MOFs) and covalent organic frameworks (COFs), has emerged as a promising avenue for confronting these challenges, presenting a new frontier in vaccine development. Although these materials have been widely explored in the context of drug delivery, imaging, and cancer immunotherapy, their role in immunology and vaccine-related applications is a recent yet rapidly developing field. This review seeks to elucidate the prospective use of MOFs and COFs for biomaterial stabilization, eliminating the necessity for cold chains, enhancing antigen potency as adjuvants, and potentializing needle-free delivery of vaccines. It provides an expansive and critical viewpoint on this rapidly evolving field of research and emphasizes the vital contribution of chemists in driving further advancements. CONTENTS 1. Introduction to Vaccines and Immuno-Therapeutics and Current Limitations in the Landscape of Vaccine Technology 3013 2. Unique Structural Features of MOFs/COFs 3015 3. Advantages of Using MOFs/COFs To Fill the Gap in Current Vaccine Technology 3017 3.1. Thermodynamic Stability of MOFs 3017 3.2. Kinetic Lability 3019 3.3. Functional Modification 3019 3.4. Needle-Free Delivery 3019 4.

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Section: Unique Structural Features Of Mofs/cofsmentioning

confidence: 82%

The Promise and Potential of Metal–Organic Frameworks and Covalent Organic Frameworks in Vaccine Nanotechnology

Wijesundara,

Howlett,

Kumari

et al. 2024

Chem. Rev.

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“…Ehsani and co-workers [37] pointed out that the high catalytic activity and the possibility to reuse the material as much as possible are important parameters that should be considered when we want to use a material/catalyst for any reaction. Therefore, the reduction of 4-NP to 4-AP using P1 (Co 5 Pt 95 ), P2 (Co 10 Pt 90 ), and P3 (Co 28 Pt 72 ) materials is demonstrated in the present work.…”

Section: Reusability Study Of P1 P2 and P3 Materialsmentioning

confidence: 99%

High Catalytic Activity of CoxPt100−x Alloys for Phenolic Compound Reduction

Dragos-Pinzaru,

Buema,

Racila

et al. 2024

Nanomaterials

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In this study, we report the influence of the Pt concentration in CoxPt100−x alloys on the catalytic activity of the alloys for 4-nitrophenol (4-NP) reduction. More precisely, a series of CoxPt100−x alloys with a Pt concentration ranging between 60% and 95% were prepared using electrodeposition at controlled potentials from stable hexachloroplatinate aqueous solution. The Pt concentration was tuned by varying the electrodeposition potential from −0.6 to −0.9 V. The changes in the CoxPt100−x alloy microstructure and crystalline structure have been investigated using SEM and TEM analysis. Our results show that the microstructure and the crystalline structure of the as-prepared materials do not depend on the electrodeposition potential. However, the catalytic activity of CoxPt100−x alloys is closely correlated with the potential applied during electrochemical synthesis, hence the Pt content. We demonstrated that the synthesized materials present a high catalytic activity (approx. 90%) after six cycles of reusability despite the fact that the Pt content of the as-prepared alloys decreases. The easy preparation method that guarantees more than 97% catalytic activity of the CoxPt100−x alloys, the easy recovery from solution, and the possibility of reusing the CoxPt100−x alloys are the benefits of the present study.

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“…This has been well-demonstrated in literature, as popular linkers like 1,4-benzenedicarboxylic acid (BDC) and 2,5-dihydroxy-1,4-bezenedicarboxylic acid (DHBDC) form many MOFs with different metals. [57][58][59] An entire subsection of research in this field is dedicated to tuning pore sizes. One of the most popular approaches for such work is utilizing the chemistry and framework of existing MOFs and swapping out the linkers with their longer counterparts to extend the pore size.…”

Section: Unique Structural Features Of Mofs/cofsmentioning

confidence: 99%

The Promise and Potential of Metal-Organic Frameworks and Covalent Organic Frameworks in Vaccine Nanotechnology

Wijesundara,

Howlett,

Kumari

et al. 2024

Preprint

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The immune system’s complexity and ongoing evolutionary struggle against deleterious pathogens underscore the value of vaccination technologies, which have been bolstering human immunity for over two centuries. Despite noteworthy advancements over these 200 years, three areas remain recalcitrant to improvement owing to the environmental instability of the biomolecules used in vaccines—the challenges of formulating them into controlled release systems, their need for constant refrigeration to avoid loss of efficacy, and the requirement that they be delivered via needle owing to gastrointestinal incompatibility. Nanotechnology, particularly Metal-Organic Frameworks (MOFs) and Covalent Organic Frameworks (COFs), has emerged as a promising avenue for confronting these challenges, presenting a new frontier in vaccine development. Although these materials have been widely explored in the context of drug delivery, imaging, and cancer immunotherapy, their role in immunology and vaccine-related applications is a recent yet rapidly developing field. This review seeks to elucidate the prospective use of MOFs and COFs for biomaterial stabilization, eliminating the necessity for cold chains, enhancing antigen potency as adjuvants, and potentializing needle-free delivery of vaccines. It provides an expansive and critical viewpoint on this rapidly evolving field of research and emphasizes the vital contribution of chemists in driving further advancements.

show abstract

High-performance catalytic reduction of 4-nitrophenol to 4-aminophenol using M-BDC (M = Ag, Co, Cr, Mn, and Zr) metal-organic frameworks

Cited by 39 publications

References 37 publications

The Promise and Potential of Metal–Organic Frameworks and Covalent Organic Frameworks in Vaccine Nanotechnology

The Promise and Potential of Metal–Organic Frameworks and Covalent Organic Frameworks in Vaccine Nanotechnology

High Catalytic Activity of CoxPt100−x Alloys for Phenolic Compound Reduction

The Promise and Potential of Metal-Organic Frameworks and Covalent Organic Frameworks in Vaccine Nanotechnology

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