polymer – Page 5 – TechConnect Briefs

Transparent polymer photodetector to control electronic devices

Jeon K.M., Korea Advanced Institute of Science and Technology, KR

Polymer semiconductor materials are being used in variable applications such as OLED, OPV and Organic sensor, because polymer semiconductor materials have advantages like solution processing, low-cost, flexible, and easy large area fabrication. However, performance of [...]

Functional polymer hydrogels for water purification applications

Liu Y., State University of New York at Stony Brook, US

Filtration is necessary in many engineering field. Polymeric membranes have been used in filtration application for more than a decade. However, some of the contaminants, e.g. radiounuclides and toxic metals, present in soluble form in [...]

Effect of Size on Properties of Nano-Structured Polymers –Transition from Macroscaling to Nanoscaling

Lem K.W., Haw J.R., Lee D.S., Brumlik C., Sund S., Curran S., Smith P., Brauer S., Schmidt D., Konkuk University, KR

The growth in investment on the effect of size in nanoscience and nanotechnology has been astounding. Among the $12.4B spent in 2006 worldwide Nanotechnology research funding (Lux Research, 2007), at least 50%, that is >$6B, [...]

Directing cell migration by electrospun fibers

Liu Y., State University of New York at Stony Brook, US

We would like to submit the abstract “directing cell migration by electrospun fiber” for the presentation in Nanotech conference 2010. We investigate the influence of substrate on cell migration. We show that it is possible [...]

Alignment of Si3N4 nanorods in Polypropylene single fibers

Rangari V.K., Yousuf M., Jeelani S., Tuskegee University, US

We have successfully aligned the silicon nitride nanorods in polypropylene single filaments through melt extrusion process. Significant enhancement in tensile properties has been observed for 1wt% rod shaped Si3N4 particles. The tensile results clearly show [...]

Nanoscale Silver Coatings on Synthetic Fibers

Amberg M., Körner E., Hegemann D., Heuberger M., Empa, Swiss Federal Laboratories for Materials Testing and Research, CH

In this work, we present two different low-pressure plasma processes that are used to obtain nanoscale coatings on the special geometry of fibers. A 100-200nm thick smooth silver coating is produced and its electromechanical as [...]

Nanoscale Chemical Spectroscopy with the Atomic Force Microscope

Prater C.B., Cook D., Shetty R., Kjoller K., Anasys Instruments, US

The ability to unambiguously identify arbitrary material under the tip of an AFM has been identified as one of the “Holy Grails” of probe microscopy. While the AFM has the ability to measure mechanical, electrical, [...]

The SURVISMETER – a Green Technology in Service

Singh M., Bhanumati S., Shukla A., Shukla S.S., Shukla A., Shukla S.S., University of Delhi, IN

Viscosity is a measure of stickiness and the reverse is fluidity. It is a valuable data for all liquids in the oil, lubricant, paint, polish, food, beverage, cosmetic, biosolvents, drugs and pharma, polymer, nanomaterials, and [...]

Functional Polymer Micro- and Nanostructures by Nanoimprint

Cheng X., Park H., Cui D., Texas A&M University, College Station, US

We present here the patterning of polymer micro- and nanostructures by nanoimprint technique. Since its inception, nanoimprint has gained huge interest as a high-resolution and low-cost lithography technique for microelectronic fabrication. We demonstrate that nanoimprint [...]

Multifunctional Electrodes Based on MWNTs Sheets and Yarns

Carretero-González J., dela Cruz M.E., Fang S., Ferraris J.P., Baughman R.H., The University of Texas at Dallas, US

Solid-state fabricated carbon MWNTs sheets and yarns exhibit very high electrochemically accessible surface area, which combine with their high electronic conductivity and useful mechanical properties to make these materials attractive candidates for supercapacitor and artificial [...]