Osteogenic and Biomedical Prospects of Hafnium and Its Compounds: A Scoping Review DOI Open Access

Vaishnavi Rajaraman,

Padma Ariga,

Deepak Pandiar

et al.

Cureus, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 12, 2024

The direct engagement of hafnium (Hf) in biological processes or its critical function living things is not well understood as now. Unlike key elements like oxygen, carbon, hydrogen, and nitrogen, which are necessary for life, Hf known to have any activities functions. It essential acknowledge that scientific research ongoing new findings may been made. This systematic review aimed aggregate analyze the studies discuss biomedical applications metal. was conducted following guidelines Preferred Reporting Items Systematic Reviews Meta-Analyses (PRISMA) Statement. search strategy used: two independent researchers electronic searches databases including PubMed, Embase, Cochrane Database Reviews, Google Scholar. up August 2023 using Medical Subject Headings (MeSH) terms "transition elements," "hafnium," "biomedical research." Boolean operators "AND" "OR" were used refine search. Electronic databases, along with hand searches, identified a total 38 studies. various database resulted studies, 12 excluded duplicates, five unavailable full-text data. remaining 21 articles then assessed their eligibility based on inclusion exclusion criteria, finally, included present review. Among chosen six cancer-related targeted radiotherapy chemoradiotherapy, bone apatite-forming capabilities, one treatment inflammatory bowel disease. common outcome measures cell proliferation, osteoblast formation, intensification, immunotherapy. outlines an overall picture uses metal, transition element, potent biomaterial. In conclusion, this Hf, has some promising scope fields biomedicine, special focus cancer osteogenic capabilities.

Language: Английский

MOFs-based Fe@YAU-101/GCE electrochemical sensor platform for highly selective detecting trace multiplex heavy metal ions DOI

Liang Qian,

Xiao Wang, Cheng Zhang

et al.

Talanta, Journal Year: 2023, Volume and Issue: 259, P. 124491 - 124491

Published: April 2, 2023

Language: Английский

Citations

38
Two Dual-Function Zr/Hf-MOFs as High-Performance Proton Conductors and Amines Impedance Sensors DOI

Lu-Lu Kang,

Xing Chen,

Yi-Xin Jin

et al.

Inorganic Chemistry, Journal Year: 2023, Volume and Issue: 62(7), P. 3036 - 3046

Published: Feb. 9, 2023

In the field of sensing, finding high-performance amine molecular sensors has always been a challenging topic. Here, two highly stable 3D MOFs DUT-67(Hf) and DUT-67(Zr) with large specific surface areas hierarchical pore structures were conveniently synthesized by solvothermal reaction ZrCl4/HfCl4 simple organic ligand, 2,5-thiophene dicarboxylic acid (H2TDC) according to literature approach. By analyzing TGA data, it was found that have defects (unsaturated metal sites) can interact substrates (H2O volatile gas), which is conducive proton transfer compound identification. Further experiments showed at 100 °C 98% relative humidity (RH), optimized conductivities reach high values 2.98 × 10–3 3.86 S cm–1, respectively. Moreover, room temperature sensing characteristics MOFs' gases evaluated 68, 85 RHs, Impressively, prepared MOFs-based desired stability higher sensitivity amines. Under 68% RH, detection limits or for 0.5 (methylamine), (dimethylamine) 1 ppm (trimethylamine), As far as we know, this best performance ammonia in past proton-conductive MOF sensors.

Language: Английский

Citations

26
Adjusting structure-activity relationship to obtain hybrid proton exchange membrane with enhanced transport efficiency by introducing functionalized nano-coated MOFs DOI
L. Meng,

Tian Lan,

Jingmei Xu

et al.

Journal of Membrane Science, Journal Year: 2024, Volume and Issue: 694, P. 122409 - 122409

Published: Jan. 3, 2024

Language: Английский

Citations

15
Improved performance of lanthanide-doped UIO-66/Nafion hybrid proton exchange membrane for water electrolyzer DOI
Qiancan Wang, Dongchen Shen, Zhengkai Tu

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 56, P. 1249 - 1256

Published: Jan. 3, 2024

Language: Английский

Citations

11
Exploring the synthesis, properties, and potential of chitosan-functionalized metal-organic frameworks in emerging applications DOI
Anbazhagan Sathiyaseelan, Xin Zhang, Yuting Lu

et al.

Progress in Materials Science, Journal Year: 2024, Volume and Issue: 148, P. 101387 - 101387

Published: Oct. 9, 2024

Language: Английский

Citations

10
Ultrahigh Proton Conductivities of Postmodified Hf(IV) Metal–Organic Frameworks and Related Chitosan-Based Composite Membranes DOI
Xin Chen,

Shuai‐Long Zhang,

Shang-Hao Xiao

et al.

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(29), P. 35128 - 35139

Published: July 18, 2023

Recently, researchers have focused on preparing and studying proton exchange membranes. Metal-organic frameworks (MOFs) are candidates for composite membrane fillers due to their high crystallinity structural characteristics, Hf-based MOFs attracted our attention with porosity stability. Therefore, in this study, were doped into a cost-effective chitosan matrix as fabricate films having excellent conductivity (σ). First, the nanoscale Hf-UiO-66-(OH)2 (1) Hf-UiO-66-NH2 (2) chemically modified by ligand design strategy obtain SA-1 CBD-2 bearing free -COOH units. The conductivities of under optimal test conditions reached 1.23 × 10-2 0.71 S cm-1. After that, we prepared membranes CS/SA-1 CS/CBD-2 casting method; tests revealed that introduction improved stabilities σ values membranes, best could reach above cm-1 100 °C/98% RH. Further characterization activation energy calculation conductive mechanism films. This investigation not only proposes novel chemical modification method optimizing but also promotes development MOF-doped provides basis future applications fuel cells.

Language: Английский

Citations

22
The effect of free carboxylic acid groups on the proton conductivity of a series of UiO-66-Ce(IV) metal-organic frameworks DOI

Huimin Ren,

Boyang Liu,

Bing-Tao Zuo

et al.

Microporous and Mesoporous Materials, Journal Year: 2023, Volume and Issue: 351, P. 112481 - 112481

Published: Feb. 3, 2023

Language: Английский

Citations

19
Prominent Intrinsic Proton Conduction in Two Robust Zr/Hf Metal–Organic Frameworks Assembled by Bithiophene Dicarboxylate DOI

Yu-Ling Hong,

Zhenhua Xu,

Jun Du

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(23), P. 10786 - 10797

Published: May 21, 2024

To date, developing crystalline proton-conductive metal–organic frameworks (MOFs) with an inherent excellent proton-conducting ability and structural stability has been a critical priority in addressing the technologies required for sustainable development energy storage. Bearing this mind, multifunctional organic ligand, 3,4-dimethylthiophene[2,3-b]thiophene-2,5-dicarboxylic acid (H2DTD), was employed to generate two exceptionally stable three-dimensional porous Zr/Hf MOFs, [Zr6O4(OH)4(DTD)6]·5DMF·H2O (Zr-DTD) [Hf6O4(OH)4(DTD)6]·4DMF·H2O (Hf-DTD), using solvothermal means. The presence of Zr6 or Hf6 nodes, strong Zr/Hf–O bonds, electrical influence methyl group, steric effect thiophene unit all contribute their throughout wide pH range as well water. Their proton conductivity fully examined at various relative humidities (RHs) temperatures. Creating intricate rich H-bonded networks between guest water molecules, coordination solvent thiophene-S, –COOH, –OH units within framework assisted transfer. As result, both MOFs manifest maximum 0.67 × 10–2 4.85 10–3 S·cm–1 under 98% RH/100 °C, making them top-performing Zr/Hf-MOFs. Finally, by combining characteristics activation energies, potential conduction pathways were identified.

Language: Английский

Citations

8
Exploring the Development of Natural Biopolymer (Chitosan)-Based Proton Exchange Membranes for Fuel Cells: A Review DOI Creative Commons

Fayaz Ahmad Doobi,

Fasil Qayoom Mir

Results in Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 15, P. 100218 - 100218

Published: April 12, 2024

Fuel cells use proton exchange membranes (PEMs) to transform a chemical energy into electricity. Hydrogen is the most common fuel used in cells. PEMs are selective barriers that only let protons pass through, obstructing gases and other species like electrons. A polymer electrolyte substance containing both positively negatively charged ions generally create PEMs. Nafion one perfluorinated sulfonic acid membrane, which popular This exhibits great stability, strong mechanical qualities, high conductivity. have number of issues, their propensity degrade with time, especially at temperatures presence pollutants. In order address this, researchers looking new materials methods enhance performance durability PEMs, such as adding nanomaterials, coming up architectures, establishing cutting-edge manufacturing techniques. Biopolymer based chitosan demonstrated potential be They environmentally friendly economical. However, key challenge using relatively poor ionic Researchers developed various strategies improve conductivity, doping conductive or incorporating functional groups charge transfer. Overall, has shown promise renewable sustainable for The review summarizes current development evolution chitosan-based

Language: Английский

Citations

7
Icing on the Cake: Imidazole-Anchored Strategy To Enhance the Proton Conductivity of Two Isostructural Ce(IV)/Hf(IV) Metal–Organic Frameworks DOI

Jin-Qi Qiao,

Huimin Ren,

Xin Chen

et al.

Inorganic Chemistry, Journal Year: 2023, Volume and Issue: 62(51), P. 21309 - 21321

Published: Dec. 13, 2023

In the field of proton conduction, acquisition crystalline metal-organic frameworks (MOFs) with high stability and ultrahigh conductivity has been great research value is worth continuous exploration. Here, we greenly synthesized a three-dimensional porous MOF (MOF-801-Ce) by using [(NH4)2Ce(NO3)6 fumaric acid as starting materials solvothermally Hf-UiO-66-NO2 HfCl4 2-nitroterephthalic materials. A series measurements have shown that both MOFs exhibit good water stability, acid-base thermal demonstrate outstanding conductivity. At 100 °C 98% relative humidity (RH), conductivities (σ) could be 2.59 × 10-3 S·cm-1 for MOF-801-Ce 0.89 Hf-UiO-66-NO2. To pursue higher conductivity, further adopted evaporation approach to encapsulate imidazole molecules in pores two compounds, achieving imidazole-encapsulated MOFs, Im@MOF-801-Ce Im@Hf-UiO-66-NO2. As expected, their σ values were significantly boosted almost an order magnitude up 10-2 S·cm-1. Finally, proton-conductive mechanisms explored light structural information, gas adsorption/desorption, other tests. The these durability conduction capability manifested they promise electrochemical fields.

Language: Английский

Citations

14