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Imaging antique coins with beams of low-energy neutrons, researchers at the National Institute of Standards and Technology (NIST) and their colleagues have
Using strands of DNA to create miniature hinges that pop open or shut when binding to specific molecules, researchers at the National Institute of Standards and
The Micro and Nanoplastic (MNP) Metrology Project aims to develop a toolbox of methods for size-based separations from complex matrices, chemical characterization protocols, and test materials necessary to enable quantification of micro- and nano-sized plastic particles, a need articulated by our
Semiconductor technologies are critical to U.S. economic and national security as they are essential to modern life in communications, healthcare, energy, etc. and also underpin many emerging technologies like quantum, artificial intelligence, high power electronics and advanced wireless (6G+). The
The quantum Hall effect (QHE), and devices that exhibit it, will continue to serve as the foundation of the ohm while also expanding its territory into other SI derived units. The world adopted the quantum SI in 2019, and it remains essential that the global metrology community pushes forth and
Intended Impact Understanding the potential environmental fate of NPs has direct implications to the US economy, as potential environmental and human health impacts of NPs is one of the main factors slowing the commercialization of this technology. Reducing the uncertainty regarding the
Aqueous two-phase extraction (ATPE) is an effective and scalable liquid-phase processing method for purifying single species of single-wall carbon nanotubes
Klaus Natorf Quelhas, Mark-Alexander Henn, Ricardo Cordeiro de Farias, Weston L. Tew, Solomon I. Woods
Magnetic Particle Imaging (MPI) is a novel technique developed for remotely detecting magnetic nanoparticle (MNP) tracers, with great potential for biomedical
Frank Abel, Eduardo De Lima Correa, Thinh Bui, Adam Biacchi, Michael J. Donahue, Solomon I. Woods, Angela Hight Walker, Cindi Dennis
High crystal quality nano-ferrites with short surface ligands (oleic acid) were recently shown to exhibit enhanced spatial resolution in magnetic particle
An electron hologram is a fringe modulated image containing the amplitude and phase information of an electron transparent object. The HolograFREE routines
Field evaporates (with a voltage and laser pulse) a sharp tip-shaped specimen. Collects the ionization products in a position-sensitive, time-of-flight mass
Dual beam focused ion beam/scanning electron microscope (FESEM). Focused ion beam using Ga atoms allows the patterning of objects at ~10 nm level (milling and
Probe corrected 200kV analytic electron microscope Resolves single atoms Chemical analytic capability (EELS, EDS) Highest resolution in electron optics (<0.1 nm