Antimicrobial properties of vertically aligned nano-tubular copper

Enhanced piezoelectric properties of vertically aligned single-crystalline NKN nano-rod arrays

Piezoelectric materials capable of converting between mechanical and electrical energy have a great range of potential applications in micro- and nano-scale smart devices; however, their performance tends to be greatly degraded when reduced to a thin film due to the large clamping force by the substrate and surrounding materials. Herein, we report an effective method for synthesizing isolated p...

Surface properties of vertically aligned carbon nanotube arrays

This study focuses on the structural changes of vertically aligned carbon nanotube (CNT) arrays while measuring their adhesive properties and wetting behaviour. CNT forests grown by chemical vapor deposition with a height of ~100 μm, an outer CNT diameter of ~10 nm and a density of the order of ~10 CNTs/cm show an average adhesion of 4 N/cm when pressed against a glass surface. The applied forc...

Growth and field emission properties of vertically aligned carbon nanofibers

Vertically aligned carbon nanofibers sVACNFsd were synthesized on Ni-coated Si substrates using a dc plasma-enhanced chemical-vapor deposition system. The size of the Ni islands used as catalyst to grow the VACNFs was formed by both thermal annealing and laser processing on thin metal layers. It was observed that the diameter of the carbon nanofibers is strongly dependent on the initial Ni isla...

Nano-Scale Convective Heat Transfer of Vertically Aligned Carbon Nanotube Arrays

Vertical bounce of two vertically aligned balls

When a tennis ball rests on top of a basketball and both drop to the floor together, the tennis ball is projected vertically at high speed. A mass-spring model of the impact, as well as air track data, suggest that the tennis ball should be projected at relatively low speed. Measurements of the forces on each ball and the bounce of vertically aligned superballs are used to resolve the discrepan...