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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 7 — Aug. 1, 2013

Facile Characterization of the Immobilization of Streptavidin on Magnetic Submicron Particles with a Fluorescent Probe of Streptavidin

Gaobo Long, Yi Zhang, Xiaolan Yang, Jun Pu, Jialin Qin, Lin Liu, and Fei Liao

Applied Spectroscopy, Vol. 67, Issue 6, pp. 688-691 (2013)


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Abstract

To characterize streptavidin immobilization on magnetic submicron particles (MSPs), residual streptavidin after magnetic removal of immobilized streptavidin was quantified with N-biotinyl-N?-(1-naphthyl)-ethylenediamine (BNEDA) based on Förster resonance energy transfer. Residual BNEDA after magnetic removal of bound BNEDA was measured by its own fluorescence. Streptavidin was immobilized at about 12 mg per gram of MSPs and easily retained over 50% of its original activity. These assays facilitated optimized streptavidin immobilization on MSPs.

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Vol. 8, Iss. 7 Virtual Journal for Biomedical Optics

Citation
Gaobo Long, Yi Zhang, Xiaolan Yang, Jun Pu, Jialin Qin, Lin Liu, and Fei Liao, "Facile Characterization of the Immobilization of Streptavidin on Magnetic Submicron Particles with a Fluorescent Probe of Streptavidin," Appl. Spectrosc. 67, 688-691 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=as-67-6-688

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