Zinc could be a “golden” bullet for bioabsorbable stents

This series of scanning electron microscope images illustrates the corrosion of zinc wire implanted in rats' arteries at 1.5 months, 3 months, 4.5 months and 6 months. The wires degraded at a rate just below 0.2 millimeters per year -- the "magic" value for bioabsorbable stents -- for the first three months. After that, the corrosion accelerated, so the implant would not remain in the artery for too long. Image: Patrick Bowen.

Some materials dissolve too quickly in the body, and some hang around forever — zinc, however, may be just right.

PDFLink to the original paper on Wiley Online Library

Surface patterning controls liquid spread

surface-structure-control-liquid-spreading

Researchers at Aalto University have developed a geometric surface structure that is able to stop and control the spreading of liquids.

PDFLink to the original paper on Wiley Online Library

Real advance in quantum dot photovoltaics from MIT

Scanning Electron Microscope images show an array of zinc-oxide nanowires (top) and a cross-section of a photovoltaic cell made from the nano wires, interspersed with quantum dots made of lead sulfide (dark areas). A layer of gold at the top (light band) and a layer of indium-tin-oxide at the bottom (lighter area) form the two electrodes of the solar cell.

Researchers improve efficiency of quantum-dot photovoltaic system by adding a forest of nanowires.

PDFLink to the original paper on Wiley Online Library

Nanosphere lithography towards selective protein recognition

Schematic description of the nanosphere lithography method.

Researchers propose to create materials capable of protein recognition by means of a new technique based on nanosphere lithography.

PDFLink to the original paper on Wiley Online Library

Tough and pliable: a paper-like ceramic

Tough and pliable A paper-like ceramic

Scientists produce a paper-like ceramic material which is as hard as copper, yet flexible enough to be rolled up or folded. The material has another advantage: it is electrically conductive.

PDFLink to the original paper on Wiley Online Library

A new way to make next-generation battery electrodes

li-ion-battery-graphene-electrode

Chinese researchers report a method to coat graphene with a transition metal oxide, with the aim to create new, better electrodes for Li-ion batteries.

PDFLink to the original paper on Wiley Online Library

Making bio-inorganic composites antimicrobial

Researchers have developed an innovative process for adding broad-spectrum antimicrobial activity to biomimetically-synthesized bio-inorganic composites.

PDFLink to the original paper on Wiley Online Library

Better characterisation of thin film organic semiconductors

The thin film molecular packing motifs of several new benzo[d,d]thieno[3,2-b;4,5-b]dithiophene (BTDT) derivatives have different molecular packings from their bulk crystals. Co-existence of strained lattices with their single crystal forms is speculated to have a significant effect on OTFT performance.

Researchers have characterised the molecular packing motifs of several new benzo-thiophene derivatives.

PDFLink to the original paper on Wiley Online Library

Next Generation of Micro-Machining

Micropatterned Freestanding Superelastic TiNi Films

German researchers present a new micro-machining method to fabricate micropatterned superelastic TiNi films.

PDFLink to the original paper on Wiley Online Library

How can black carp crush hard snail shells?

Mollusk shells are well known to have excellent mechnical properties, but a species of carp – Mylopharyngodon piceus – lives on them. How?

PDFLink to the original paper on Wiley Online Library