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Key Documents

747556

Sigma-Aldrich

Gold nanoparticles

5 nm diameter, silica coated, OD 1, dispersion in H2O

Synonym(s):

Gold Colloid, Gold/Silica core/shell particles

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About This Item

UNSPSC Code:
12352302
NACRES:
NA.23

material

silica

form

dispersion
nanoparticles

concentration

~6.6E+13 particles/mL

OD

1

diameter

5 nm

density

0.99345 g/mL at 25 °C

storage temp.

2-8°C

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Application

Webinar: Introduction to Gold Nanoparticles - Properties and Applications in Life Science
Our silica coated gold nanoparticles are highly stable and suitable for applications including: Sensing/Detection1, Biological Targeting2, and enhanced photoacoustics upon aggregation3. Silica coating has also been shown to enhance gold uptake in cells4.

Storage Class

12 - Non Combustible Liquids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCN3520
MKCF8989
MKBS5973V

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Bayer; Carolyn L.;
Journal of Biomedical Optics, 18(1), 016001/1-016001/5 (2013)
Fan Xia et al.
Proceedings of the National Academy of Sciences of the United States of America, 107(24), 10837-10841 (2010-06-11)
We have demonstrated a novel sensing strategy employing single-stranded probe DNA, unmodified gold nanoparticles, and a positively charged, water-soluble conjugated polyelectrolyte to detect a broad range of targets including nucleic acid (DNA) sequences, proteins, small molecules, and inorganic ions. This
Jesse V Jokerst et al.
ACS nano, 6(7), 5920-5930 (2012-06-12)
Improved imaging modalities are critically needed for optimizing stem cell therapy. Techniques with real-time content to guide and quantitate cell implantation are especially important in applications such as musculoskeletal regenerative medicine. Here, we report the use of silica-coated gold nanorods
Bin Kang et al.
Journal of the American Chemical Society, 132(5), 1517-1519 (2010-01-21)
By properly conjugating gold nanoparticles with specific peptides, we were successful in selectively transporting them to the nuclei of cancer cells. Confocal microscopy images of DNA double-strand breaks showed that localization of gold nanoparticles at the nucleus of a cancer

Articles

Silica-coated Gold Nanoparticles: Surface Chemistry, Properties, Benefits and Applications

In the past few decades, research and commercial use of gold nanoparticles has rapidly expanded into fields extending from biomedical engineering to photovoltaics. Most applications take advantage of the excellent optical properties of gold nanoparticles, which can be fine-tuned by varying their shape and size.

Graphene-Based Composites and their Unique Renewable Energy Applications

Graphene is a unique two-dimensional (2D) structure of monolayer carbon atoms packed into a dense honeycomb crystal that has attracted great interest due to its diverse and fascinating properties.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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