Journal Covers

Test tubes containing nanowires
// Journal Covers
This communication reports a new method to purify copper nanowires with nearly 100% yield from undesired copper nanoparticle side-products formed during batch processes of copper nanowire synthesis.
A metamaterial
// Journal Covers
The authors demonstrate hierarchical metamaterials with disparate three-dimensional features spanning seven orders of magnitude, from nanometres to centimetres.
Artist conception of carbon nanotube structure
// Journal Covers
Small‐diameter carbon nanotubes (CNTs) are shown to enable exceptionally fast transport of water vapor under a concentration gradient driving force.
Optical manufacturing system
// Journal Covers
Authors have developed a method to manufacture high-gradient corrective optical elements for high-power laser systems using deterministic magnetorheological finishing (MRF) imprinting technology.
Alloy part casting
// Journal Covers
Authors discuss a series of intermetallic-strengthened Al alloys that exhibit the potential for new high-volume use of cerium.
graphene material
// Journal Covers
Demonstrating a facile electrochemical method that can substantially improve the capacitance of graphene‐based electrodes while still retaining their excellent rate capability.
3D printing direct ink write
// Journal Covers
Reports the fabrication of 3D periodic graphene composite aerogel microlattices for supercapacitor applications, via a 3D printing technique known as direct-ink writing.
Lab on a CHip journal cover
// Journal Covers
Livermore and Harvard Medical School researchers report a novel cardiac platform that can record cardiac tissue adhesion, electrophysiology, and contractility on the same chip.
Nanoscratching of optical glass
// Journal Covers
The nanomechanical deformations on glass surfaces near the elastic–plastic load boundary have been measured on various glasses by nanoscratching using an atomic force microscope (AFM) to mimic the mechanical interactions of polishing particles during optical polishing.
Instrument being installed in telescope
// Journal Covers
Observations of stars were performed with the “TEDI” interferometer mounted within the central hole of the 200-in. primary mirror in series with the comounted TripleSpec near-infrared echelle spectrograph.