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Sigma-Aldrich

Gold nanoparticles

20 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

~8.5E+11 particles/mL

OD

1

diameter

20 nm

λmax

518-528 nm

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/Detection; Biological Targeting; and enhanced photoacoustics upon aggregation. Silica coating has also been shown to enhance gold uptake in cells.

Storage Class

12 - Non Combustible Liquids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

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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
Bayer; Carolyn L.;
Journal of Biomedical Optics, 18(1), 016001/1-016001/5 (2013)
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
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

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