Stimuli-responsive SERS nanoparticles: conformational control of plasmonic coupling and surface Raman enhancement.

@article{Qian2009StimuliresponsiveSN,
  title={Stimuli-responsive SERS nanoparticles: conformational control of plasmonic coupling and surface Raman enhancement.},
  author={Ximei Qian and Jun Li and Shuming Nie},
  journal={Journal of the American Chemical Society},
  year={2009},
  volume={131 22},
  pages={
          7540-1
        }
}

• Ximei Qian, Jun Li, Shuming Nie
• Published 2009 in Journal of the American Chemical Society
• DOI:10.1021/ja902226z

Stimuli-responsive surface-enhanced Raman scattering (SERS) nanoparticles have been developed by using colloidal gold nanocrystals and a class of thiolated block copolymers consisting of a pH-responsive polymer segment, an amphiphilic polyethylene glycol segment, and a lipoic acid anchoring group. The results demonstrate that SERS signals can be switched on and off by molecular conformations in response to pH. An important finding is that neutralized polymethacrylic acid (PMAA) molecules are… CONTINUE READING

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