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Key Documents

702129

Sigma-Aldrich

Aluminum oxide

nanoparticles, <50 nm particle size (DLS), 20 wt. % in isopropanol

Sinônimo(s):

Alumina

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About This Item

Fórmula linear:
Al2O3
Número CAS:
Peso molecular:
101.96
Número MDL:
Código UNSPSC:
12352311
eCl@ss:
38120402
ID de substância PubChem:
NACRES:
NA.23

forma

dispersion
nanoparticles

Nível de qualidade

concentração

20 wt. % in isopropanol

tamanho de partícula

<50 nm (DLS)

pH

8-10

densidade

0.79 g/cm3 at 25 °C

cadeia de caracteres SMILES

O=[Al]O[Al]=O

InChI

1S/2Al.3O

chave InChI

TWNQGVIAIRXVLR-UHFFFAOYSA-N

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Descrição geral

Nanosized aluminum oxide, also called nano alumina or Al2O3 nanoparticles, is a form of aluminum oxide with a small particle size and high specific surface area. Our aluminum oxide nanoparticles have a particle size less than 50 nm. The nanoparticles are suspended in isopropyl alcohol (IPA) to facilitate its dispersion and use. Nano alumina exhibits unique bio-physicochemical properties, including high surface area, high hardness, thermal stability, and biocompatibility. In the field of catalysis, it servesas efficient catalyst supports, enhancing reaction rates and selectivity. They also exhibit remarkable dielectric properties, making them valuable for electronic and optoelectronic devices. Additionally, Al2O3 NPs have demonstrated promising results in biomedical applications, including drug delivery systems, biomedical imaging, biosensing, and tissue engineering. They are also key components in advanced coatings, energy storage systems, environmental remediation, optoelectronics, photonics, and personal care products.

Aplicação

  • Elemental analysis of levitated solid samples by microwave-assisted laser induced breakdown spectroscopy.: This study explores the application of aluminium oxide in enhancing the elemental analysis capabilities of laser induced breakdown spectroscopy, providing a novel approach for high precision chemical analysis in analytical chemistry (Alamri AM et al., 2024).
  • An ab initio molecular dynamics investigation of the behaviour of amorphous substances in anodic aluminium oxide under electric field.: This research presents a molecular-level understanding of how amorphous substances behave within anodic aluminium oxide structures when subjected to an electric field, offering insights into the material′s stability and reactivity (An Z et al., 2024).
  • Alternative nano-lithographic tools for shell-isolated nanoparticle enhanced Raman spectroscopy substrates.: The article discusses the utilization of aluminium oxide in the development of advanced nano-lithographic tools, significantly enhancing the performance of Raman spectroscopy for chemical detection and analysis (Srivastava K et al., 2024).
  • Unexpected early loosening of rectangular straight femoral Zweymüller stems with an alumina-reduced surface after total hip arthroplasty-a prospective, double-blind, randomized controlled trial.: This study examines the clinical implications of using aluminium oxide in prosthetic implants, specifically its effect on the longevity and stability of femoral stems in hip arthroplasty (Moret CS et al., 2024).
  • Green Synthesis of Aluminum Oxide Nanoparticles Using Clerodendrum phlomidis and Their Antibacterial, Anti-inflammatory, and Antioxidant Activities.: Investigates the biogenic synthesis of aluminium oxide nanoparticles, highlighting their potential in biomedical applications due to their antibacterial, anti-inflammatory, and antioxidant properties (Thanaraj S et al., 2024).

Pictogramas

FlameExclamation mark

Palavra indicadora

Danger

Frases de perigo

Classificações de perigo

Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3

Órgãos-alvo

Central nervous system

Código de classe de armazenamento

3 - Flammable liquids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

53.6 °F - closed cup

Ponto de fulgor (°C)

12 °C - closed cup

Equipamento de proteção individual

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


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A simple one-step and gram-scale synthesis of [Au5Mes5] from AuCl3 was developed, and this molecular precursor was used to generate Au nanoparticles on SiO2 and Al2O3. While [Au5Mes5] does not react with surface silanols and is only physisorbed, its incipient
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Solution dispersions of two-dimensional (2D) black phosphorus (BP)--often referred to as phosphorene--are achieved by solvent exfoliation. These pristine, electronic-grade BP dispersions are produced with anhydrous organic solvents in a sealed-tip ultrasonication system, which circumvents BP degradation that would otherwise occur
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Nanoscale, 5(17), 8090-8097 (2013-07-25)
We demonstrated a promising route for enhancing temperature sensitivity, improving saturation voltage, and reducing power consumption of the MOS(p) tunneling temperature sensors by introducing ultrathin Al2O3 into the dielectric stacks. Detailed illustrations of the working mechanism and device concept are
Jaakko Akola et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(25), 10129-10134 (2013-06-01)
Glass formation in the CaO-Al2O3 system represents an important phenomenon because it does not contain typical network-forming cations. We have produced structural models of CaO-Al2O3 glasses using combined density functional theory-reverse Monte Carlo simulations and obtained structures that reproduce experiments
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Biotechnology advances, 30(5), 1089-1099 (2011-08-23)
Porous aluminum oxide (PAO) is a ceramic formed by an anodization process of pure aluminum that enables the controllable assembly of exceptionally dense and regular nanopores in a planar membrane. As a consequence, PAO has a high porosity, nanopores with

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