FITC-functionalized TiO2 nanoparticles for simultaneous neuron imaging and in cell photocatalysis

Tina Zhang, Mary Ann Go, Christian Stricker, Vincent Daria, Antonio Tricoli

    Research output: Contribution to journalConference articlepeer-review

    Abstract

    Crystalline TiO2 nanoparticles were produced by scalable flame spray pyrolysis of organometallic solutions. A protocol is presented for the optimized functionalization of these particles with fluorescein isothiocyanate (FITC), an important biomedical dye via a lysine linker. The pH, stoichiometry and time for lysine reaction were determined for highest dye loading and minimized degree of polylysine formation. Acidic reaction conditions, low lysine concentration and short reaction times were found to meet this aim. The resulting particles were used for imaging single neurons, showing high fluorescence emission and ability for the particles to diffuse into small neuron structures such as dendrites.

    Original languageEnglish
    Article number893
    JournalMaterials Research Society Symposium - Proceedings
    Volume1694
    DOIs
    Publication statusPublished - 2014
    Event2014 MRS Spring Meeting - San Francisco, United States
    Duration: 21 Apr 201425 Apr 2014

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