Analytical and Bioanalytical Chemistry

, Volume 407, Issue 27, pp 8215–8224

In vivo detection of SERS-encoded plasmonic nanostars in human skin grafts and live animal models

  • Janna K. Register
  • Andrew M. Fales
  • Hsin-Neng Wang
  • Stephen J. Norton
  • Eugenia H. Cho
  • Alina Boico
  • Sulolit Pradhan
  • Jason Kim
  • Thies Schroeder
  • Natalie A. Wisniewski
  • Bruce Klitzman
  • Tuan Vo-Dinh
Research Paper

DOI: 10.1007/s00216-015-8939-0

Cite this article as:
Register, J.K., Fales, A.M., Wang, HN. et al. Anal Bioanal Chem (2015) 407: 8215. doi:10.1007/s00216-015-8939-0
Part of the following topical collections:
  1. Nanospectroscopy

Abstract

Surface-enhanced Raman scattering (SERS)-active plasmonic nanomaterials have become a promising agent for molecular imaging and multiplex detection. Among the wide variety of plasmonics-active nanoparticles, gold nanostars offer unique plasmon properties that efficiently induce strong SERS signals. Furthermore, nanostars, with their small core size and multiple long thin branches, exhibit high absorption cross sections that are tunable in the near-infrared region of the tissue optical window, rendering them efficient for in vivo spectroscopic detection. This study investigated the use of SERS-encoded gold nanostars for in vivo detection. Ex vivo measurements were performed using human skin grafts to investigate the detection of SERS-encoded nanostars through tissue. We also integrated gold nanostars into a biocompatible scaffold to aid in performing in vivo spectroscopic analyses. In this study, for the first time, we demonstrate in vivo SERS detection of gold nanostars using small animal (rat) as well as large animal (pig) models. The results of this study establish the usefulness and potential of SERS-encoded gold nanostars for future use in long-term in vivo analyte sensing.

Keywords

Surface-enhanced Raman scattering (SERS) Nanostar Plasmonics Nanoprobes In vivo detection Ex vivo sensing 

Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Janna K. Register
    • 1
  • Andrew M. Fales
    • 1
  • Hsin-Neng Wang
    • 1
  • Stephen J. Norton
    • 1
  • Eugenia H. Cho
    • 2
  • Alina Boico
    • 2
  • Sulolit Pradhan
    • 3
  • Jason Kim
    • 3
  • Thies Schroeder
    • 2
  • Natalie A. Wisniewski
    • 3
  • Bruce Klitzman
    • 2
  • Tuan Vo-Dinh
    • 1
  1. 1.Fitzpatrick Institute for Photonics, Departments of Biomedical Engineering and ChemistryDuke UniversityDurhamUSA
  2. 2.Medical CenterDuke UniversityDurhamUSA
  3. 3.Profusa, Inc.South San FranciscoUSA

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