Three-dimensional printing technology has been implemented in microfluidic mold fabrication due to its freedom of design, speed, and low-cost fabrication. To facilitate processes avoid the complexities soft lithography technique, we offer a non-sacrificial approach fabricate microscale features along with mesoscale using Stereolithography (SLA) printers assemble modular mold. This helps address...

High Z (atomic number) metallic foams with a low density and high purity are urgent demands in energy-density physical experiments. They suppress plasma expansion convert the laser pulses to X-rays more uniformly efficiently. Thus, we synthesized an ultralow-density high-purity Au foam hohlraum hierarchical porous structure via template-dealloying method this paper. Silica (SiO2) beads were int...

The performance of electrocoagulation (EC) technique for decolorization and chemical oxygen demand (COD) reduction of anaerobically pretreated poultry manure wastewater was investigated in a laboratory batch study. Two identical 15.7-L up-flow anaerobic sludge blanket (UASB) reactors were first run under various organic and hydraulic loading conditions for 216 days. Effects of operating paramet...

This study describes a novel fabrication technique to grow gold nanoparticles (AuNPs) directly on seeded ZnO sacrificial template/polymethylsilsesquioxanes (PMSSQ)/Si using low-temperature hydrothermal reaction at 80°C for 4 h. The effect of non-annealing and various annealing temperatures, 200°C, 300°C, and 400°C, of the ZnO-seeded template on AuNP size and distribution was systematically stud...

The hydrodesulfurization (HDS) activity of molybdenum sulfide-based catalysts is localized to the edges of this layered solid and is, therefore, highly dependent on the technique used to prepare the material. Here, ultrasonic spray pyrolysis (USP) was used to synthesize porous, nanostructured MoS2. Low surface area powders, not useful for catalysis, are generally produced by USP. This work show...

Polymeric ultrathin membranes that are compatible with cells offer tremendous advantages for tissue engineering. In this article, we report a free-standing nanomembrane that was developed using a layer-by-layer self-assembly technique with a safe and sacrificial substrate method. After ionization, two oppositely charged polyelectrolytes, alginate and chitosan, were alternately deposited on a su...

This study presents low cost fabrication of free-standing membranes in polymer with perforated pores down to subμm diameter, which provides platforms for fundamental studies of many biosystems. For the fabrication, a combination of imprint lithography and a sacrificial layer technique was employed in order to obtain a clean, fully released, and mechanically stable membrane with perforated pores...

Using a low temperature process flow, a photoresist ashing technique was developed to define nano-gaps for the fabrication of electrostatically transduced RF MEMS. This was performed by shrinking laterally the photoresist to the required dimension in a O2 plasma etch system. Polycrystalline silicon-germanium (poly-SiGe) films replaced poly silicon as the structural layer, while poly germanium w...