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CHARACTERIZATION OF NATURAL AND ENGINEERED NANOPARTICLES: SHAPE , SIZE AND CHEMICAL COMPOSITION

CHARACTERIZATION OF NATURAL AND ENGINEERED NANOPARTICLES: SHAPE , SIZE AND CHEMICAL COMPOSITION. Lucia Manangon. http://www.theismaili.org/cms/317/Building-the-future-one-nanoparticle-at-a-time. Engineered nanoparticle. Natural nanoparticle. NANOPARTICLES. 0.25 µm. CNT. Ferrihydrite.

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CHARACTERIZATION OF NATURAL AND ENGINEERED NANOPARTICLES: SHAPE , SIZE AND CHEMICAL COMPOSITION

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  1. CHARACTERIZATION OF NATURAL AND ENGINEERED NANOPARTICLES: SHAPE, SIZE AND CHEMICAL COMPOSITION Lucia Manangon http://www.theismaili.org/cms/317/Building-the-future-one-nanoparticle-at-a-time

  2. Engineerednanoparticle Natural nanoparticle NANOPARTICLES 0.25 µm CNT Ferrihydrite TEM image of 20 nm Au NP 100 nm Podaet al.,J. Chromatogr. A.2010, 1218 (27), 4219-4225.

  3. NANOPARTICLES IN COMERCIAL PRODUCTS FATE ?? BEHAVIOR ?? BIOAVAILABILITY ?? TOXICITY ??

  4. Characterization and AnalyticalTechniques • Field Flow fractionation (FFF) • Multi Angle Light Scattering (MALS) • Dynamic Light Scattering (DLS) • Inductively coupled Plasma (FFF-ICP-MS) Size Shape Composition

  5. FFF FRACTIONATION

  6. incident beam scattered light • MULTI ANGLE LIGHT SCATTERING (MALS) – DYNAMIC LIGHT SCATTERING (DLS) SIZE AND SHAPE

  7. ICP-CC-MS 27 elements areanalyzed: • Li • C • Na • Mg • Al • Si • P • S • K • Ca • Ti • Mn • Fe • Co • Ni • Cu • Zn • As • Se • Sr • Mo • Ag • Sb • Cs • Hg • Pb • U CHEMICAL COMPOSITION

  8. Online system ICP - MS UV FFF FLUORESCENCE MALS - DLS

  9. SAMPLES Natural nanoparticle Engineerednanoparticle • Au, Ag • PS microspheres • CNT • GSL • Pore water • Deep brine layer • Deep brine sediment CHEMICAL COMPOSITION FRACTIONATION SIZE AND SHAPE UNDERSTANDING OF FATE, BEHAVIOR, BIOAVAILABILITY AND TOXICITY

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