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the phase space inhabited by complex macromolecules and blends, nano/microplastics, nanoparticles, and carbohydrates. This will be done primarily using size-based separation methods such as SEC, AF4, and HF5
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measurement methods need to be developed to evaluate the filler/nanoparticle polymer interface. The rich interfacial functionality present in new nanofibers based on cellulose and chitin, provide for stress
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, leading to significant differences between methods. NIST has world-class facilities in neutron, magnetic, X-ray, and electron techniques to investigate these methods; compare between different methods; and
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devices, coatings, food-related materials, and personal care. Work emphasizes the development of analytical methods for quantitative measurement of engineered nanoparticle properties, including bulk and
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powders and the final parts, a lack of understanding of the process physics and methods to control them, poor surface quality and part accuracy, and limitations in fabrication speed or throughput. We
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for neutron scattering, to study membrane-associated proteins. We are interested in chemistries for new measurement platforms; protein synthesis and diagnostics; simulation methods to compare to experimental
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@nist.gov 301.975.4127 Description This research is centered on the development and application of analytical methods to the characterization of nanomaterials. Opportunities exist to study the composition
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of the difficulty of producing membrane protein crystals of the quality required for high-resolution x-ray or neutron diffraction studies. Numerous approaches involving surfactant-based systems exploiting
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, superparamagnetism, magnetorheology, and enhanced magneto-optic Kerr effects. In addition to a suite of magnetic measurements, numerous nonmagnetic measurement tools, including x-ray diffraction, electron and optical
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transport, steel-concrete bond). Qualified applicants with relevant experience in materials science, advanced sensing, structural testing, or numerical simulation are encouraged to apply. key words Concrete