membrane – Page 5 – TechConnect Briefs

Manufacturable nanoscale membranes – material development and biological separations

Gaborski T.R., Striemer C.C., Snyder J.L., Fang D.Z., Fauchet P.M., McGrath J.L., University of Rochester, US

We have developed a new class of ultrathin porous nanocrystalline silicon (pnc-Si) membranes using inexpensive and scalable silicon fabrication techniques. Pnc-Si is formed from a deposited amorphous silicon thin film, where nanoscale pores are introduced [...]

Recovery of Caustic Soda in Textile Mercerization by Combined Membrane Filtration

Yang J., Park C., Lee D., Kim S., Korea Institute of Industrial Technology(KITECH), KR

This study is intended to find the optimum operational condition for the recovery of caustic soda solution from mercerization in textile process. As parameters, the silt density index (SDI) evaluation for the application of ceramic [...]

Ultra-thin Nanocomposite Membranes for Highly Sensitive Sensors

Kang T.J., Jang E.Y., Lee J-H., Kim Y.H., Seoul National University, KR

Highly sensitive sensor arrays are critical for prospective devices and demanded for various applications. Measuring microscopic deflections with sensitive membranes is one of the most versatile approaches for pressure, acoustic, chemical and biomolecular sensing. Here [...]

Sensitivity to Shape and Membrane Thickness Variations in Capacitive Pressure Sensors

Sabet A., Avula X.J., Washington University in St. Louis, US

capacitive pressure sensor, membrane thickness, membrane shape, sensitivity

Transport of Multiple Enzymes through Semipermeable Membrane and Effect of Surfactants

Trigo C., Leung S.W., Bhushan A., Daniels C.K., Lai J.C.K., Idaho State University, College of Engineering, US

Surfactants are known to influence functions of many proteins in membranes, cells and tissues. Because most studies to elucidate the effects of surfactants on membrane-bound proteins and cells employed heterogeneous or complex systems, it is [...]

Gated Chemical Transport and Enhance Flow through Carbon Nanotube Membranes

Majumder M., Chopra N., Hinds B.J., University of KY, US

A promising architecture for ion-channel mimetics is a composite membrane structure containing vertically aligned carbon nanotubes, with inner core diameters of 7 nm, passing across a polystyrene matrix film. Plasma oxidation during the fabrication process [...]

Zeolite Membrane Microreactors for Fine Chemical Synthesis

Zhang X., Lai S.M., Lam K.F., Yeung K.L., Martin-Aranda R., Hong Kong University of Science and Technology, CN

The performance of a membrane microreactor was tested and compared with that of microreactor, packed bed reactor (PBR) and packed bed membrane reactor (PBMR) for the Knoevenagel condensation reaction of benzaldehyde and ethyl cyanoacetate to [...]

Differential Effects of Surfactants on Enzyme Activity and Transport across a Semipermeable Cell

Leung S.W., Lai J.C.K., Idaho State University, US

Differential Effects of Surfactants on Enzyme Activity and Transport across a Semipermeable Cell Solomon Leung1 and James C.K. Lai2 1 Corresponding Author, College of Engineering, P.O. Box 8060, Idaho State University, Pocatello, ID 83209 Fax: [...]

Displacement Detection using Quantum Mechanical Electron Tunneling in Micro and Nano-electro-mechanical Systems

Taylor D., Ekinci K., Boston University, US

Micro-electro-mechanical systems (MEMS) and, more recently, nanoelectromechanical systems (NEMS) are emerging as candidates for a number of important technological applications — such as ultra-fast actuators, sensors, and high frequency signal processing components. Experimentally, they are [...]

A Disposable Glucose Biosensor Based on Diffusional Mediator Dispersed in Nanoparticulate Membrane on Screen-Printed Carbon Electrode

Gao Z., Xie F., Shariff M., Arshad M., Ying J.Y., Institute of Bioengineering and Nanotechnology, SG

In this paper, we described a disposable glucose biosensor based on co-dispersion of a diffusional polymeric mediator and glucose oxidase (GOX) in nanoparticulate membrane on screen-printed carbon electrode. The biosensor exhibited classical features of a [...]