membrane – Page 4 – TechConnect Briefs

Novel Lithium Based Reserved Micro Power Cell Based on Micro Fluidic Design

Allen F., Simon S., Lifton V., AlwaysReady, Inc., US

AlwaysReady, Inc. is a development-stage micro and nanotechnology company focused on advanced power and sensing solutions. The Smart Nanobattery™ offers a revolutionary approach to energy storage and power management. Leveraging strategic alliances with Alcatel-Lucent/Bell Labs [...]

Nanomonitors: Electrical Immunoassays for Protein Biomarker Profiling

Bothara M.G., Reddy R.K., Barrett T., Carruthers J., Prasad S., Portland State University, US

Robust diagnosis of a disease can be accomplished by reliable detection of multiple protein biomarkers. Traditional assay methods for protein detection such as enzyme-linked immunosorbent assay (ELISA) have several limitations – need for use of [...]

Characterization of DNA Transport through a Semipermeable Membrane with the Effect of Surfactants

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

In current advances of biotechnology, various models of introduction of DNA into cells to alter their gene expression have important biomedical and bioengineering applications. However, the molecular mechanisms underlying how DNA’s cross cell and nuclear [...]

Characterizing Membrane Sorption and Diffusion with Flux Lateral Force Microscopy

Killgore J.P., Overney R.M., University of Washington, US

Bulk permeability measurements provide an incomplete descriptor of permeability when considering heterogeneous or anisotropic membranes. Localized measurements of flux allow for independent assessment of constituent contributions to total permeability. Analogous to a puck on an [...]

The bijel: a bicontinuous interfacially jammed emulsion gel

White K.A., Herzig E.M., Schofield A.B., Poon W.C.K., Cates M.E., Clegg P.S., University of Edinburgh, UK

The bijel is a new class of functional material comprised of two simple fluids arrested in a bicontinuous configuration. We stabilize the fluid structure using an interfacial layer of silica particles. As with colloid-stabilized emulsions, [...]

Interfacial Nanocomposite Characterization by Nanoparticle Debonding

Killgore J.P., Overney R.M., University of Washington, US

A novel nanoscale thermomechanical methodology is introduced involving resistively heated cantilevers, also referred to as heated tip AFM (HT-AFM), that provide direct access to the interfacial interaction strength between poly(trimethyl silyl propyne) (PTMSP) - silica [...]

Measurement of nanometric deformation of thin membranes under controlled mechanical loads

Jobin M., Sidorenko V., Foschia R., Ecole Ingenieurs Geneve, CH

The accurate mechanical characterisation of thin membranes is recognized of prime importance for the development of membrane-based MEMS. To address this issue, we have built a measurement system which uses a nanoindentor to apply a [...]

Nanoporous Alumina Membranes Based Microdevices for Ultrasensitive Protein Detection

Bothara M.G., Reddy R.K., Barrett T., Carruthers J., Prasad S., Portland State University, US

This research focuses on using the electrical and chemical properties of nanoporous alumina membranes to improve the sensitivity and performance of Si-based microdevices for protein sensing. The integration of nanoporous membranes with the microdevice results [...]

A High-Flux, Flexible Membrane with Parylene-encapsulated Carbon Nanotubes

Park H.G., In J., Kim S., Fornasiero F., Holt J.K., Grigoropoulos C.P., Noy A., Bakajin O., Lawrence Livermore Natioanal Laboratory, US

We present fabrication and characterization of a membrane based on carbon nanotubes (CNT) and parylene. Carbon nanotubes have shown orders of magnitude enhancement in gas and water permeability compared to estimates generated by conventional theories [...]

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 [...]