Nanoscale Materials Characterization


Agglomerates and Aggregates: Number and Size of Primary Particles from in-situ Mass-Mobility Measurements

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Gas-borne nanoparticles generated at high temperatures undergo coagulation forming agglomerates (physically-bound particles) and aggregates (chemically- or sinter-bound particles). The structure of such particles influences their transport, light scattering, effective surface area and density. Real-time characterization [...]

Spectroscopic study on the charge redistribution between Au and Ag in Au@Ag core-shell nanoparticles

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Charge transfer in heteromeric structures such as Au@Ag core-shell nanoparticles (NPs) and Au@Ag@Au double-shell NPs was demonstrated using X-ray absorption near-edge structure (XANES) and X-ray photoelectron spectroscopy (XPS) techniques. XANES analyses confirmed that the d-orbital [...]

Multi-Parametric Surface Plasmon Resonance – A new technique to determine thickness and refractive index of thin and thick layers

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Multi-Parametric(MP)-SPR empowers multidisciplinary research between life sciences and material sciences. Biochemists are moving from molecular-molecular interactions to molecule-material interactions, as seen in drug encapsulation or development of diagnostic kits. On the other hand, material science [...]

Ferromagnetic Resonance in amine/organic acid caped Au-nanoparticles assisted by rare-earths oxides

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Amine/organic acid caped Au-nanoparticles (Au-NPs) were prepared by reducing gold tetrachloroaurate (HAuCl4.3H2O) and rare-earth (RE)-oxides (RE = Er and Y and monodisperse samples of caped Au-NPs of ~10 nm in diameter were obtained. The magnetization [...]

Characterizing Environmental Transformation of Multi-walled Carbon Nanotubes and Carbon Nano-Fiber Composites using Thermal Analysis and Related Hyphenated Techniques

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Thermogravimetric analysis (TGA) coupled with gas chromatography and mass spectroscopy (TGA/GCMS), for the evolved gas analysis, has given insight to the stability and kinetics of structural changes and determining adsorbed organics to nanomaterials and nanocomposites. [...]

Journal: TechConnect Briefs
Volume: 1, Nanotechnology 2012: Advanced Materials, CNTs, Particles, Films and Composites (Volume 1)
Published: June 18, 2012
Industry sector: Advanced Materials & Manufacturing
Topic: Materials Characterization & Imaging
ISBN: 978-1-4665-6274-5