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  Identification of individual exosome-like vesicles by surface enhanced raman spectroscopy

Stremersch, S., Marro, M., Pinchasik, B.-E., Baatsen, P., Hendrix, A., De Smedt, S. C., et al. (2016). Identification of individual exosome-like vesicles by surface enhanced raman spectroscopy. Small, 12(24), 3292-3301. doi:10.1002/smll.201600393.

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 Creators:
Stremersch, Stephan, Author
Marro, Monica, Author
Pinchasik, Bat-El1, Author              
Baatsen, Pieter, Author
Hendrix, An, Author
De Smedt, Stefan C., Author
Loza-Alvarez, Pablo, Author
Skirtach, Andre G.2, Author              
Raemdonck, Koen, Author
Braeckmans, Kevin, Author
Affiliations:
1Peter Fratzl, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863294              
2Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863284              

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Free keywords: diagnostics, exosome-like vesicles, gold nanoparticles, multivariate statistical analysis, surface enhanced Raman spectroscopy
 Abstract: Exosome-like vesicles (ELVs) are a novel class of biomarkers that are receiving a lot of attention for the detection of cancer at an early stage. In this study the feasibility of using a surface enhanced Raman spectroscopy (SERS) based method to distinguish between ELVs derived from different cellular origins is evaluated. A gold nanoparticle based shell is deposited on the surface of ELVs derived from cancerous and healthy cells, which enhances the Raman signal while maintaining a colloidal suspension of individual vesicles. This nanocoating allows the recording of SERS spectra from single vesicles. By using partial least squares discriminant analysis on the obtained spectra, vesicles from different origin can be distinguished, even when present in the same mixture. This proof-of-concept study paves the way for noninvasive (cancer) diagnostic tools based on exosomal SERS fingerprinting in combination with multivariate statistical analysis.

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 Dates: 2016-05-122016
 Publication Status: Published in print
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1002/smll.201600393
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Title: Small
  Other : Small
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 12 (24) Sequence Number: - Start / End Page: 3292 - 3301 Identifier: ISSN: 1613-6810