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Rapid Raman imaging of stable, functionalized nanoshells in mammalian cell cultures. | LitMetric
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Rapid Raman imaging of stable, functionalized nanoshells in mammalian cell cultures.

Yiming Huang Vimal P Swarup Sandra Whaley Bishnoi

Nano Lett

BCPS Department, Illinois Institute of Technology, 3101 South Dearborn, Chicago, IL, USA.

Published: August 2009

Two Raman-active poly(ethylene glycol) (PEG) molecules, one linear (MW 5000) and the other branched (MW 2420), are synthesized to stabilize gold-silica nanoshells in cell culture media and track nanoparticles in mammalian cell cultures. The linear PEG provides greater nanoshell stability in saline solution compared to commercially available PEG-thiol or the branched PEG. Surface enhanced Raman scattering rapidly tracks the probes and provides semiquantitative information regarding particle localization within mouse macrophage (RAW 264.7) and human breast cancer (MCF 7) cell cultures.

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 Source
http://dx.doi.org/10.1021/nl901234xDOI Listing

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