Papers – Page 77 – TechConnect Briefs

Effect of particle size on the mechanical properties of polymer matrix nanocomposite

Zhou Y.X., White E.T, Jeelani S., Tuskegee University, US

In the present investigation, we have studied effect of inclusions size on mechanical properties of nanocomposite materials containing SC-15 epoxy resin and TiO2 particles. Micro sized particles have little effect on modulus and strength of [...]

Transport of Ionic Electrolytes and Proteins through Semipermeable Membrane

Leung S.W., Trigo C., Daniels C.K., Bhushan A., Lai J.C.K., Idaho State University, 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 [...]

Nanoparticles Formed by Complexation of Poly-gamma-glutamic Acid with Lead Ions

Bodnar M., Kjoniksen A-L, Hartmann J.F., Daróczi L., Nystrom B., Borbely J., University of Debrecen, HU

Recently, reduction of water consumption by industry has been an important challenge. Enhanced ultrafiltration with polymers is a feasible method to remove metal ions from diluted wastewater streams. Biomacromolecules, biodegradable polymers as biomaterials have an [...]

Windows of Opportunity: A New Platform to Understand Structure-Property Relationships in Nanotechnology

Miller J.M, Kearns G.J., Hutchison J.E., Dune Sciences, LLC, US

Excitement about nanotechnology derives from unique size/structure dependent properties of nanoscale materials. Methods to prepare a wide range of structures are now available, but a limited fundamental understanding of structure-function relationships remains a significant challenge [...]

Functional Plastic Liquid Crystal Displays from II-VI Semiconductor Nanocomposite Thin Film Transistors on Polymers

MacNab F., Frechette P., Fong B., Li T., Shih I., Andrews M.P., McGill University and Silk Displays Inc, CA

This talk describes how II-VI semiconductors can be deposited from solution to create all-inorganic TFTs on plastic. We discuss semiconductor film growth mechanisms that arise from competition among nanoparticle formation, particle-particle accretion in solution and [...]

Polyimides with Fluorenyl Side Groups and Their Unusual, Unique Alignability of Liquid Crystals at the Film Surface

Hahm S.G., Lee T.J., Ree M., Pohang University of Science and Technology, KR

Polyimides (PIs) have been widely used in the microelectronics industry as dielectric materials because of their advantageous properties. In the present study, we synthesized CBDA-FDA and its analogue, poly(4,4’-(9,9-fluorenyl)diphenylene pyromellitimide) (PMDA-FDA) and then investigated quantitatively [...]

Immobilization of biomolecules in nano-bottles

Dong O., Yeung K.L., Hong Kong University of Science and Technology, HK

This work reports the fabrication of nano-bottles for the containment of biomolecules on a surface of the substrate. Nano-bottles of different sizes from 10 nm to 200 nm were prepared by using nanotextured polymers formed [...]

Patterning Wrinkle Architectures in Nanocomposite Glasses with Self-Inscribing Guided Waves

Andrews M.P., Belanger N., McGill University, CA

We have been exploring ways in which light induced self inscribed (LISI) waveguides can impose constraints on wrinkle patterns when nanocomposite hybrid sol-gel glass films become unstable to perturbations of a certain wavelength, which reflects [...]

Micro Patterning Sensor Layers by Flame Deposition and Annealing

Tricoli A., Graf M., Mayer F., Kühne S., Hierlemann A., Pratsinis S.E., Swiss Federal Institute of Technology (ETH Zürich ), CH

A wafer-level, CMOS-compatible, dry process for in-situ synthesis, deposition and annealing of nanostructured, porous metal-oxide layers for gas sensors is presented. First, lace-like, nanostructured layers of pure or Pt-doped SnO2 featuring high porosity (98%) are [...]

Single-Molecule Study of Dendrimer-Hydrocarbon Interaction

Pasupathy K., Jones A.T., Ke P.C., Clemson University, US

Dendrimers are star-branched polymers which have broad applications from energy harvesting, catalysis, drug delivery, to gas-hydrate prevention in the petroleum industry. However the underlining mechanisms of these applications are not well understood. Here we present [...]