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702129

Sigma-Aldrich

Aluminum oxide

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

Synonym(s):

Alumina

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About This Item

Linear Formula:
Al2O3
CAS Number:
1344-28-1
Molecular Weight:
101.96
MDL number:
MFCD00003424
UNSPSC Code:
12352311
eCl@ss:
38120402
PubChem Substance ID:
329762346
NACRES:
NA.23

form

dispersion
nanoparticles

Quality Level

100

concentration

20 wt. % in isopropanol

particle size

<50 nm (DLS)

pH

8-10

density

0.79 g/cm3 at 25 °C

SMILES string

O=[Al]O[Al]=O

InChI

1S/2Al.3O

InChI key

TWNQGVIAIRXVLR-UHFFFAOYSA-N

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Application

  • 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).

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Danger

Hazard Statements

H225 - H319 - H336

Hazard Classifications

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

Target Organs

Central nervous system

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

53.6 °F - closed cup

Flash Point(C)

12 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Aluminum oxide

G Siddiqi et al.
Dalton transactions (Cambridge, England : 2003), 44(32), 14349-14353 (2015-07-23)
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
Joohoon Kang et al.
ACS nano, 9(4), 3596-3604 (2015-03-19)
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
Chien-Chih Lin et al.
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
Colin J Ingham et al.
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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