Cell‐derived or extracellular vesicles, including microparticles and exosomes, are
abundantly present in body fluids such as blood. Although such vesicles have gained strong …

During 2014 and 2015, NASA's Neutron star Interior Composition Explorer (NICER) mission
proceeded success-fully through Phase C, Design and Development. An X-ray (0.2-12 keV) …

The metrological fields of photometry and radiometry and their associated units are closely
linked through the current definition of the base unit of luminous intensity—the candela …

New results are reported from an ongoing international research effort to accurately
determine the Avogadro constant by counting the atoms in an isotopically enriched silicon …

This paper concerns an international research project aimed at determining the Avogadro
constant by counting the atoms in an isotopically enriched silicon crystal. The counting …

A new single crystal from isotopically enriched silicon was used to determine the Avogadro
constant NA by the x-ray-crystal density method. The new crystal, named Si28-23Pr11, has a …

Abstract Within the European iMERA-Plus project'Traceable Characterisation of
Nanoparticles' various particle measurement procedures were developed and finally a …

A novel ultra-high vacuum instrument for X-ray reflectometry and spectrometry-related
techniques for nanoanalytics by means of synchrotron radiation has been constructed and …

The Metrology Light Source is a recently constructed 630 MeV electron storage ring,
operating as a synchrotron radiation source for the THz to extreme UV spectral range. It is …

Organosilanes are used routinely to functionalize various support materials for further
modifications. Nevertheless, reliable quantitative information about surface functional group …