Papers – Page 2 – TechConnect Briefs

Polymer nanocomposite based chemiresistive gas sensors

Meka D.A., George L.A., Prasad S., Portland State University, US

We present here the development of a polymer nanocomposite based gas sensor for detecting trace gas emissions in ambient environment. This project is aimed to build a chemiresistive gas sensor with excellent sensitivity and improved [...]

Two-nozzle flame synthesis of Pt/Ba/Al2O3 for NOx storage

Büchel R., Strobel R., Pratsinis S.E., Baiker A., ETH Zürich, CH

A novel two-nozzle flame spray pyrolysis (FSP) process is presented for one-step preparation of Pt/Ba/Al2O3 particles for NOx storage-reduction (NSR) catalysts. These storage catalysts are of particular interest for mobile engines operating under lean conditions [...]

Characterization of Different Surfaces Morphology in Heterogeneous Catalyst

Mukherjee R., Palazoglu A., Romagnolia J.A., Louisiana State University, US

Structures and property of surface are very important in different chemical, physical and biological process. The interaction between the reactant molecules (adsorbate) and the surface are important in the performance of the catalyst. Surface with [...]

Carbon Nanotube Interfaces for Single Molecular Level Bio Sensing

Choi W.B., Vedala H., Roy S., Kim T-H., Florida International University, US

Single molecule detection, aimed both at fundamental investigation and applications, has recently been attracting a lot of attentions. The present set of studies is focused on the design, fabrication and optimization of novel carbon nanotube(CNT) [...]

Silane-based water repellent and easy-to-clean surfaces for concrete structure improvement

Kargol M.A., Danish Technological Institute, DK

In addition to its civil engineering properties, concrete also has an architectural and aesthetic function. When the concrete structure ages, the visible appearance of the surface gradually changes as it is exposed to the environment, [...]

A Markedly Cntrollable Adhesion of Superhydrophobic Sponge-like Nanostructure TiO2 Films

Lai Y., Lin C., Huang J., Zhuang H., Sunb L., Nguyen T., Xiamen University, CN

A method consisting of electrochemical anodization and self-assembling of hydrophobic-hydrophilic mixture has been employed to fabricate superhydrophobic sponge-like nanostructured TiO2 surfaces with remarkably controllable adhesion. Water adhesion ranged from ultra-low (5.0 N) to very high [...]

Hypertransparent Nanostructured Superhydrophobic Self-Cleaning Coatings on Glass Substrates

Jiang Y.D., Smalley Y., Paris H., Hunt A.T., nGimat Co., US

Self-cleaning surfaces have wide applications in architectural and automotive windows and solar panels, etc. The development of superhydrophobic surfaces was inspired by observation of lotus and other plant leaves. Many existing hydrophobic coatings either have [...]

Engineering superhydrophobic and superoleophobic surfaces

Tuteja A., Choi W., Mabry J.M., McKinley G.H., Cohen R.E., Massachusetts Institute of Technology, US

The combination of surface chemistry and roughness on multiple scales imbues enhanced repellency to the lotus leaf surface when in contact with a high surface tension liquid such as water. This understanding has led to [...]

Simulation and Fabrication of Large Area 3D Nanostructures

Bogart K.H.A., El-kady I., Grubbs R.K., Rahimian K., Sanchez A.M., Ellis A.R., Wiwi M., McCormick F.B., J.-L. Shir D., Rogers J.A., Sandia National Laboratories, US

Three-dimensional (3D) nano-structures are vital for emerging technologies such as photonics, sensors, fuel cells, catalyst supports, and data storage. The Proximity-field nanoPatterning1 method generates complex 3D nanostructures using a single exposure and development cycle. Exposure [...]

Gold nanoparticle-based miniaturized NSET Probe for rapid and ultra-sensitive detection of toxic metals in soil, water and fish

Ray A., Ray P.C., Darbha G.K., Ray A., Ray P.C., Jackson State University, US

Contamination of the environment with toxic metals like mercury and arsenic have been an important concern throughout the world for decades. Human exposure to high Hg or As levels can harm the brain, heart, kidneys, [...]