Highly luminescent PANI-Si nanoparticle capsules using miniemulsion

Authors

Noha Elhalawany, National Research Center
Yulia Maximenko, University of Illinois at Urbana-Champaign
Zain Yamani, KFUPM
Siu-Tung Yau, Cleveland State UniversityFollow
Munir H. Nayfeh, University of Illinois at Urbana-ChampaignFollow

Document Type

Article

Publication Date

1-1-2013

Publication Title

Journal of Materials Research

Abstract

We used miniemulsion to synthesize novel water-soluble dispersion of nanocapsules with a polyaniline (PANI) shell and luminescent ultrasmall Si nanoparticle core with diameters of 50–300 nm. The capsules are functionalized with aromatic sulfonic acid. The capsules may be reconstituted in thin films or structured surfaces. The stability of the luminescence and dispersion of the capsules is studied under a wide range of pH conditions. The multiplicity of nanoparticles in the core provides highly amplified and reproducible signal for luminescence-based imaging using standard fluorescence microscopy, while the PANI shell allows a variety of routes for functionalization as well as electrical interrogation, which enables a wide range of biosensing/imaging applications.

Repository Citation

Elhalawany, Noha; Maximenko, Yulia; Yamani, Zain; Yau, Siu-Tung; and Nayfeh, Munir H., "Highly luminescent PANI-Si nanoparticle capsules using miniemulsion" (2013). Electrical and Computer Engineering Faculty Publications. 243.
https://engagedscholarship.csuohio.edu/enece_facpub/243

Article Number

Cambridge

DOI

10.1557/jmr.2012.325

Volume

28