Instability Mechanism in Thermoelectric Mg2(Si,Sn) and the Role of Mg Diffusion at Room Temperature DOI Creative Commons
Amandine Duparchy, Radhika Deshpande, Aryan Sankhla

et al.

Small Science, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 14, 2024

Mg 2 (Si,Sn) shows great promise as thermoelectric material it is made from non‐toxic, abundant, and cost‐effective elements offering high performance. This has been emphasized by several generator prototypes, demonstrating technological maturity. However, stability paramount for large‐scale applications whereas we reveal here that the thermal of n‐type may be limited even at room temperature (RT). Integral properties measurements, locally resolved Seebeck coefficient analysis, scanning electron microscopy/energy‐dispersive X‐ray spectroscopy, atomic force microscopy are employed to assess changes samples stored in ambient atmosphere years, revealing evolution carrier concentration transport well surface degradation. caused diffusion loosely bound bulk towards subsequent oxidation, leading a change Mg‐based intrinsic defect concentrations, thereby degrading microscopic mechanism backed up first‐principles calculations, diffusivity RT occurs mainly via vacancies. The observed much faster degradation Sn‐rich can correlated with higher density vacancies Sn compared Si, predicted formation energies.

Language: Английский

Magnesium Oxide (MgO) Nanoparticles: Synthetic Strategies and Biomedical Applications DOI Creative Commons

Maria-Anna Gatou,

Eirini Skylla, Panagiota Dourou

et al.

Crystals, Journal Year: 2024, Volume and Issue: 14(3), P. 215 - 215

Published: Feb. 23, 2024

In recent times, there has been considerable interest among researchers in magnesium oxide (MgO) nanoparticles, due to their excellent biocompatibility, stability, and diverse biomedical uses, such as antimicrobial, antioxidant, anticancer, antidiabetic properties, well tissue engineering, bioimaging, drug delivery applications. Consequently, the escalating utilization of nanoparticles medical contexts necessitates in-depth exploration these nanoparticles. Notably, existing literature lacks a comprehensive review nanoparticles’ synthesis methods, detailed applications with mechanisms, toxicity assessments. Thus, this aims bridge gap by furnishing insight into various synthetic approaches for development MgO Additionally, it elucidates noteworthy potential mechanisms action, alongside summarizing profiles. This article also highlights challenges future prospects further exploring field. Existing indicates that synthesized demonstrate substantial biocompatibility display significant antibacterial, antifungal, antioxidant properties. intends enhance readers’ comprehension regarding advancements synthesizing through promising biomedicine.

Language: Английский

Citations

38
On Antimicrobial Polymers: Development, Mechanism of Action, International Testing Procedures, and Applications DOI Open Access
Saleh Alkarri,

Hawra Bin Saad,

Maria Soliman

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(6), P. 771 - 771

Published: March 11, 2024

The development of antimicrobial polymeric materials has evolved into one the more promising methods for preventing growth microbes and mitigating spread infectious diseases in several applications including health food packaging sectors. outbreak global pandemics, particularly recent COVID-19 pandemic, further strengthen importance developing such solutions. This review paper presents a fundamental understanding how polymers are developed, describes possible surface modification approaches to render with properties, highlights potential mechanism action against range microorganisms (bacterial, viral, fungal), details some international standard protocols procedures evaluate properties modified (such as plastics textiles). In addition, this discusses toxicity additives when used healthcare applications.

Language: Английский

Citations

22
Polydopamine-based nanoadsorbents for water purification DOI
Mohammad Gholizadeh,

V Haddadi Asl,

Hossein Roghani‐Mamaqani

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159314 - 159314

Published: Jan. 9, 2025

Language: Английский

Citations

2
Nanoparticle Synthesis and Their Integration into Polymer-Based Fibers for Biomedical Applications DOI Creative Commons
Joana Domingues, Catarina S. Miranda, Natália C. Homem

et al.

Biomedicines, Journal Year: 2023, Volume and Issue: 11(7), P. 1862 - 1862

Published: June 29, 2023

The potential of nanoparticles as effective drug delivery systems combined with the versatility fibers has led to development new and improved strategies help in diagnosis treatment diseases. Nanoparticles have extraordinary characteristics that are helpful several applications, including wound dressings, microbial balance approaches, tissue regeneration, cancer treatment. Owing their large surface area, tailor-ability, persistent diameter, also used for engineering, controlled delivery, protective clothing. combination power generate enhanced performance over individual architectures. This review aims at illustrating main possibilities trends functionalized nanoparticles, focusing on inorganic organic polymer-based fibers. Emphasis recent progress fabrication procedures types description most polymers produce been undertaken, along bioactivity such alliances biomedical applications. To finish, future perspectives incorporated within clinical use presented discussed, thus showcasing relevant paths follow success field.

Language: Английский

Citations

24
Plant-Based Synthesis, characterization Approaches, Applications and Toxicity of Silver Nanoparticles: A Comprehensive Review DOI

Shijith Thomas,

Richard Gonsalves,

Jomy Jose

et al.

Journal of Biotechnology, Journal Year: 2024, Volume and Issue: 394, P. 135 - 149

Published: Aug. 17, 2024

Language: Английский

Citations

11
Highly Efficient One‐pot Electrosynthesis of Oxime Ethers from NOx over Ultrafine MgO Nanoparticles Derived from Mg‐based Metal‐Organic Frameworks DOI
Shihan Wang,

Runan Xiang,

Peisen Liao

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(26)

Published: April 10, 2024

Oxime ethers are attractive compounds in medicinal scaffolds due to the biological and pharmaceutical properties, however, crucial widespread step of industrial oxime formation using explosive hydroxylamine (NH

Language: Английский

Citations

9
Design and optimization of Ag decorated MgO nanosphere catalyst for efficient removal of textile industry pollutants and their biological applications DOI

Amirunnisa Begum,

S. Savitha,

T.M. Naren Vidaarth

et al.

Journal of the Indian Chemical Society, Journal Year: 2025, Volume and Issue: 102(2), P. 101573 - 101573

Published: Jan. 10, 2025

Language: Английский

Citations

1
Prospects of MgO-based sorbents for CO2 capture applications at high temperatures DOI Creative Commons
Felix Donat, Christoph R. Müller

Current Opinion in Green and Sustainable Chemistry, Journal Year: 2022, Volume and Issue: 36, P. 100645 - 100645

Published: June 14, 2022

MgO-based materials possess favorable thermodynamic properties that enable them to be used as CO2 sorbents in the temperature range of 300–550 °C — at least theoretically. have seen a boost activity since discovery molten alkali metal salt promoters, and yet, they practically remove from gas stream efficiently only very high pressures (p > 10 bar), rendering suitable for precombustion, but not postcombustion capture schemes. Most current performance assessments rely on measurements transition between MgO MgCO3 (or Mg-double carbonates) rather than ability actually stream, which may misleading regarding their practical use application. Further, reliable data involving carbonates is missing, although these large potential industrial applications.

Language: Английский

Citations

38
Enhanced adsorptive removal of indigo carmine dye by bismuth oxide doped MgO based adsorbents from aqueous solution: equilibrium, kinetic and computational studies DOI Creative Commons

Fatima A. Adam,

Monira G. Ghoniem,

Moussa Diawara

et al.

RSC Advances, Journal Year: 2022, Volume and Issue: 12(38), P. 24786 - 24803

Published: Jan. 1, 2022

Novel doped MgO nanoadsorbents were effectively fabricated at various Bi2O3 doping concentrations (0, 2.5, 5 and 10%). DFT-D3 study showed that the is done by substitution of two magnesium atoms bismuth with creation a vacancy one Mg atom. TEM, SEM, EDX, BET, XRD, FTIR used to characterize obtained nanostructures. The removal indigo carmine (IC) dyes from wastewater nanoparticles investigated. Experimental parameters such as initial dye concentration, contact time, pH optimized enhance adsorption capacity. prepared 5% (MgOBi2) best adsorbent maximum IC capacity 126 mg g-1 solution equal 7.00 time 74 min. results indicated process followed pseudo-second-order (PSO) reaction kinetics, Freundlich isotherm model gave better goodness-of-fit than linear Langmuir model. established molecules are successfully adsorbed onto surface MgOBi2 via chemisorption process.

Language: Английский

Citations

38
A High Thermal Conductivity of MgO-H2O Nanofluid Prepared by Two-Step Technique DOI Creative Commons

Hadia Kadhim Judran,

Adnan Ghareeb Tuaamah Al-Hasnawi, Faten N. Al Zubaidi

et al.

Applied Sciences, Journal Year: 2022, Volume and Issue: 12(5), P. 2655 - 2655

Published: March 4, 2022

In this paper, the main goal is to study impact of nanopowder volume concentration and ultrasonication treatment time on stability thermophysical properties MgO-DW nanofluid at room temperature. The co-precipitation method was utilized prepare pure MgO nanoparticles with an average particle size 33 nm. prepared characterized by using XRD, SEM, EDX analyses. Then, obtained different concentrations (i.e., 0.05, 0.1, 0.15, 0.2, 0.25 vol.%) periods 45, 90, 135, 180 min) a novel two-step technique. With 0.15 vol.% min, respectively, good achieved, according zeta potential analysis. increasing period samples, thermal conductivity measurements showed significant increases. As result, maximum enhancement found be 25.08% ratio agitation min. Dynamic viscosity revealed two contrasting trends time. lowest value relative gained 0.05 nanofluid. chemical physical interactions between DW molecules play important function in determining dynamic These findings exhibit that has used as advanced heat transfer fluid cooling systems exchangers.

Language: Английский

Citations

34