Nanostructured porous polymeric photonic bandgap structures for sensing

Sung Jin Kim, Vamsy P. Chodavarapu, Rachel Bukowski, A. H. Titus, Alexander N. Cartwright, Mark T. Swihart, Frank Bright, Timothy J. Bunning

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


A methodology for enabling biochemical sensing applications using porous polymer photonic bandgap structures is presented. Specifically, we demonstrate an approach to encapsulation of chemical and biological recognition elements within the pores of these structures. This sensing platform is built on our recently demonstrated nanofabrication technique using holographic interferometry of a photo-activated mixture that includes a volatile solvent as well as monomers, photoinitiators, and co-initiators. Evaporation of the solvent after polymerization yields nanoporous polymeric 1D photonic bandgap structures that can be directly integrated into optical sensor systems that we have previously developed. More importantly, these composite structures are simple to fabricate, chromatically tunable, highly versatile, and can be employed as a general template for the encapsulation of biochemical recognition elements. As a specific example of a prototype device, we demonstrate an oxygen (O2) sensor by encapsulating the fluorophore (tris(4,7-diphenyl-1,10-phenathroline) ruthenium(II) within these nanostructured materials. Finally, we report initial results of extending this technique to the development of a hydrophilic porous polymer photonic bandgap structure for sensing in aqueous environments. The ability to control the hydrophilic/hydrophobic nature of these materials has direct impact on chemical and biological sensing.

Original languageEnglish (US)
Title of host publicationNanoscale Imaging, Spectroscopy, Sensing, and Actuation for Biomedical Applications IV
StatePublished - 2007
Externally publishedYes
EventNanoscale Imaging, Spectroscopy, Sensing, and Actuation for Biomedical Applications IV - San Jose, CA, United States
Duration: Jan 23 2007Jan 24 2007

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
ISSN (Print)1605-7422


OtherNanoscale Imaging, Spectroscopy, Sensing, and Actuation for Biomedical Applications IV
Country/TerritoryUnited States
CitySan Jose, CA


  • Biochemical sensors
  • Biosensors
  • Fluorometry
  • Nanostructured sensors
  • Optical sensors
  • Oxygen sensors
  • Photonic bandgap structure
  • Porous polymer
  • Reflection gratings

ASJC Scopus subject areas

  • Engineering(all)


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