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Synthesis of YF3: Yb, Er upconverting nanofluorophores using chitosan and their cytotoxicity in MCF-7 cells.

Synthesis of YF3: Yb, Er upconverting nanofluorophores using chitosan and their cytotoxicity in MCF-7 cells.

International journal of biological macromolecules (2014-12-03)

Sethuraman Gayathri, Oriparambil Sivaraman Nirmal Ghosh, Annamraju Kasi Viswanath, P Sudhakara, M Jeevan Kumar Reddy, A M Shanmugharaj

RESUMO

In this work, we described one pot hydrothermal synthesis of surface modified water soluble YF3: Yb, Er upconverting nanofluorophores (UCNFs) using natural biopolymer chitosan. The obtained nanocrystals have undergone X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), high resolution transmission electron microscopy (HRTEM) and photoluminescence (PL) studies. The nanoparticles possess uniform particle size distribution with average size about 27 nm. The cytotoxicity results revealed that the chitosan capped nanoparticles exhibit excellent biocompatibility in human breast cancer cells. In conclusion, the water soluble chitosan capped YF3: Yb, Er nanoparticles could be used as a potential candidate in bio-imaging and therapeutic applications.

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Álcool etílico, puro, 200 proof, anhydrous, ≥99.5%

Sigma-Aldrich

Ammonium fluoride, ≥99.99% trace metals basis

Sigma-Aldrich

Álcool etílico, puro, 190 proof, ACS spectrophotometric grade, 95.0%

Sigma-Aldrich

Yttrium(III) chloride, anhydrous, powder, 99.99% trace metals basis

Sigma-Aldrich

Ytterbium, powder, ≥99.9% trace rare earth metals basis

Sigma-Aldrich

Yttrium(III) chloride, AnhydroBeads^™, −10 mesh, 99.99% trace metals basis

Ytterbium, lump, 25g, max. size 25mm, 99.9%

Sigma-Aldrich

Álcool etílico, puro, 190 proof, ACS reagent, meets USP testing specifications, Excise Tax-free, Permit for use required

Erbium, rod, 50mm, diameter 10.0mm, cast, 99%

Erbium, rod, 100mm, diameter 6.35mm, cast, 99%

Erbium, foil, 25x25mm, thickness 0.125mm, as rolled, 99%

Erbium, wire reel, 50mm, diameter 1.0mm, hard, 99.9%

Ytterbium, rod, 50mm, diameter 10.0mm, cast, 99%

Erbium, rod, 100mm, diameter 10.0mm, cast, 99%

Sigma-Aldrich

Álcool etílico, puro, 160 proof, Excise Tax-free, Permit for use required

Ytterbium, lump, 100g, max. size 25mm, 99.9%

Ytterbium, lump, 50g, max. size 25mm, 99.9%

Ytterbium, rod, 100mm, diameter 6.35mm, cast, 99%

Erbium, foil, not light tested, 50x50mm, thickness 0.025mm, as rolled, 99%

Erbium, rod, 50mm, diameter 2.0mm, cast, 99%

Ytterbium, foil, not light tested, 50x50mm, thickness 0.025mm, as rolled, 99%

Ytterbium, rod, 50mm, diameter 2.0mm, cast, 99%

Erbium, foil, 50x50mm, thickness 1.0mm, as rolled, 99%

Erbium, foil, not light tested, 25x25mm, thickness 0.005mm, as rolled, 99%

Erbium, wire reel, 100mm, diameter 1.0mm, hard, 99.9%

Ytterbium, foil, not light tested, 25x25mm, thickness 0.005mm, as rolled, 99%

Ytterbium, foil, not light tested, 25x25mm, thickness 0.025mm, as rolled, 99%

Erbium, rod, 50mm, diameter 6.35mm, cast, 99%

Erbium, foil, 50x50mm, thickness 0.125mm, as rolled, 99%

Erbium, foil, 25x25mm, thickness 1.0mm, as rolled, 99%