University of Hertfordshire

Silica passivated conjugated polymer nanoparticles for biological imaging applications

Research output: Chapter in Book/Report/Conference proceedingChapter

  • Struan Bourke
  • Laura Urbano
  • Antoni Olona
  • Ferran Valderrama
  • Lea Ann Dailey
  • Mark A. Green
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Original languageEnglish
Title of host publicationReporters, Markers, Dyes, Nanoparticles, and Molecular Probes for Biomedical Applications IX
Publication statusPublished - 21 Feb 2017


Colorectal and prostate cancers are major causes of cancer-related death, with early detection key to increased survival. However, as symptoms occur during advanced stages and current diagnostic methods have limitations, there is a need for new fluorescent probes that remain bright, are biocompatible and can be targeted. Conjugated polymer nanoparticles have shown great promise in biological imaging due to their unique optical properties. We have synthesised small, bright, photo-stable CN-PPV, nanoparticles encapsulated with poloxamer polymer and a thin silica shell. By incubating the CN-PPV silica shelled cross-linked (SSCL) nanoparticles in mammalian (HeLa) cells; we were able to show that cellular uptake occurred. Uptake was also shown by incubating the nanoparticles in RWPE1, WPE1-NB26 and WPE1- NA22 prostate cancer cell lines. Finally, HEK cells were used to show the particles had limited cytotoxicity.


© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE).

ID: 15781419