Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Substrate responsive colloidal system based on luminescent Tb(III) doped silica nanoparticles

[+] Author Affiliations
Asiya R. Mustafina, Olga D. Bochkova, Svetlana V. Fedorenko, Viktoriya V. Skripacheva, Lucia Ya. Zakharova, Marcil K. Kadirov, Irek R. Nizameyev, Alexander I. Konovalov, Svetlana E. Soloveva

A.E. Arbuzov Institute of Organic and Physical Chemistry (Russian Federation)

Proc. SPIE 7994, LAT 2010: International Conference on Lasers, Applications, and Technologies, 79941B (February 07, 2011); doi:10.1117/12.881335
Text Size: A A A
From Conference Volume 7994

  • LAT 2010: International Conference on Lasers, Applications, and Technologies
  • Vladislav Panchenko; Gérard Mourou; Aleksei M. Zheltikov
  • Kazan, Russian Federation | August 23, 2010

abstract

Positively charged luminescent silica nanoparticles loaded with Tb(III) complex were prepaired by reverse microemulsion procedure with further modification by gemini surfactant. The ξ-potential values and dynamic light scattering data indicate high positive charge and colloidal stability of the as prepaired nanoparticles. The high affinity of these nanoparticles to anions is verified by spectrophotometric measurements with dye molecules, namely phenol red. The insertion of phenol red anions into surfactant bilayer at silica/water interface results in the quenching effect on Tb(III)-centered luminescence of the nanoparticles. Thus "on-off" switching of Tb-centered luminescence indicates the formation of the positively charged bilayer at the silica/water interface. The binding of dodecylsulfate anions with cationic adlayer at the silica/water interface results in the recharging of silica nanoparticles. This recharging can be manifested through the "off-on" luminescent switching, resulted from the displacement of dye anions and reestablishment of Tb(III)-centered luminescence.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Asiya R. Mustafina ; Olga D. Bochkova ; Svetlana V. Fedorenko ; Viktoriya V. Skripacheva ; Lucia Ya. Zakharova, et al.
"Substrate responsive colloidal system based on luminescent Tb(III) doped silica nanoparticles", Proc. SPIE 7994, LAT 2010: International Conference on Lasers, Applications, and Technologies, 79941B (February 07, 2011); doi:10.1117/12.881335; http://dx.doi.org/10.1117/12.881335


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.