Surface-enhanced Raman spectroscopy investigation on human breast cancer cells

Jichun Zhu, Jing Zhou, Jianyu Guo, Weiying Cai, Bo Liu, Zugeng Wang, Zhenrong Sun*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)

Abstract

Background: Nanoparticles are potentially used for early cancer detection, accurate diagnosis, and cancer treatment.Results: In this paper, the breast cancer cells treated with gold colloidal suspension were carefully studied by surface-enhanced Raman scattering (SERS) spectra. Raman spectroscopy combining with high-resolution electron microscope is employed to investigate the interaction of gold nanoparticles (GNPs) with the intracellular components. The TEM images show that the GNPs are taken into the living cells and enveloped into some vesicles named 'lick up vesicles' in the cytosol.Conclusions: The SERS spectra and SERS mapping of cells indicate that the major Raman bands are mostly assigned to the vibration characteristics of proteins, and the C-H in-plane bending mode of the substituted benzene in Phenylalanine is remarkably enhanced. Finally, the interaction mechanisms of the GNPs with the intracellular components are further discussed in detail.

Original languageEnglish
Article number37
JournalChemistry Central Journal
Volume7
Issue number1
DOIs
Publication statusPublished - 25 Feb 2013
Externally publishedYes

Keywords

  • Breast cancer cell
  • Gold nanoparticles
  • SERS
  • SERS mapping

Fingerprint

Dive into the research topics of 'Surface-enhanced Raman spectroscopy investigation on human breast cancer cells'. Together they form a unique fingerprint.

Cite this