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326542

Sigma-Aldrich

Gold

beads, 1-6 mm, 99.999% trace metals basis

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About This Item

Empirical Formula (Hill Notation):
Au
CAS Number:
Molecular Weight:
196.97
EC Number:
MDL number:
UNSPSC Code:
12141717
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

99.999% trace metals basis

form

beads

resistivity

2.05 μΩ-cm, 0°C

particle size

1-6 mm

bp

2808 °C (lit.)

mp

1063 °C (lit.)

density

19.3 g/mL at 25 °C (lit.)

SMILES string

[Au]

InChI

1S/Au

InChI key

PCHJSUWPFVWCPO-UHFFFAOYSA-N

General description

Goldis a highly valued metal in catalysis and material science due to its uniqueproperties such as high chemical stability, excellent electrical and thermalconductivity, malleability, and ductility. In catalysis, gold nanoparticles areparticularly effective as catalysts for various chemical reactions, includingoxidation and hydrogenation processes due to their high surface area andexcellent catalytic activity. In material science, gold is often employed inthe fabrication of electronic components, sensors, and biomedical devices dueto its excellent conductivity, corrosion resistance, and biocompatibility.

Application

  • Design and performance analysis of a highly sensitive photonic crystal fiber based plasmonic sensor: This study highlights the development of a gold-based plasmonic sensor for applications in material science, particularly for environmental monitoring (Walid et al., 2024).
  • A theoretical study of the electronic structures of metal-semiconductor-metal junction and their electrical properties: Discusses the electronic properties of gold in semiconductor devices, valuable for academic research in material sciences (Almehanyah, 2024).
  • Highly stable and efficient gold nanoparticles films facilitated by thiourea for catalytic reduction of nitrophenol in water: Investigates gold nanoparticles for environmental remediation, an application of interest in material science for its efficiency in catalytic processes (Xia et al., 2024).

Storage Class

11 - Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Tianxun Gong et al.
Journal of biomedical nanotechnology, 9(6), 985-991 (2013-07-19)
In this paper, we proposed the use of gold nanoparticles as plasmon scattering probes for dark-field multiplex imaging of live cancer cells. By carefully engineering the surfaces, aqueous dispersions of anti-EGFR antibody-conjugated gold nanospheres and gold nanorods are prepared. We
Yoon-Chae Nah
Journal of nanoscience and nanotechnology, 13(5), 3470-3473 (2013-07-19)
Au nanoparticles and poly(3-hexylthiophene) (P3HT) composite films were prepared by electrodeposition of Au nanoparticles using pulse-current electrodeposition followed by the spin coating of P3HT and their enhanced electrochromic coloration was investigated. A relatively uniformed Au nanoparticle was obtained by the
Young Min Bae et al.
Journal of biomedical nanotechnology, 9(6), 1060-1064 (2013-07-19)
We report on the enhancement of sensitivity of SPR biosensor by modifying the metal surface. A mixture layer, in which gold and dielectric medium coexist, was simply prepared by increasing the roughness of gold surface deposited onto a glass substrate
Zhengxia Liu et al.
Journal of biomedical nanotechnology, 9(6), 1017-1028 (2013-07-19)
Ischemic stroke is a leading cause of death and disability, and the treatment options are limited. Recent studies demonstrated that the promising applications of gold nanoparticles (Au-NPs) as intrinsic therapeutics; however, little is known about the effect of Au-NPs on
Young Joo Choi et al.
Journal of nanoscience and nanotechnology, 13(6), 4437-4445 (2013-07-19)
Gold nanorods (Au NRs) that absorb near-infrared (NIR) light have great potential in the field of nanomedicine. Photothermal therapy (PTT), a very attractive cancer therapy in nanomedicine, combines nanomaterials and light. The aim of this study was to elucidate the

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