Papers – Page 58 – TechConnect Briefs

Reversible Long-Range Assemblies in Gold Nanoparticles – Liquid Crystal Composites: Molecular Dynamics of the Gold Capping Layer

Milette J., Toader V., Scheffer L.-P., Lennox R.B., Reven L., McGill University, CA

Highly miscible mesogenic ligand capped gold nanoparticles (AuNPs) [1] that produce reversible long-range assemblies in nematic and smectic liquid crystal (LC) [2-3] were recently developed by our group. At the isotropic-to-nematic phase transition of cyanobiphenyl [...]

Microcharacterization of Creep Behavior of Carbon Nanofiber Reinforced HDPE Nanocomposites using a Depth Sensing Method

Xu S., Liu T., Tangpong X.W., Akhatov I., Zhong W-H., North Dakota State University, US

Depth-sensing indentation at micro- and nano-scale levels is a useful tool for material characterization due to its simplicity. There are many well-established methods for determining local mechanical properties including elastic modulus, hardness, and fracture toughness [...]

The Coupled Electro-Mechanical Behaviour of Nanocomposites

Wernik J.M., Meguid S.A., University of Toronto, CA

In the past two decades, practical realisation of composites began to shift from microscale-reinforced composites to nano-reinforced composites using carbon nanotubes (CNTs). There are a number of advantages that result from dispersing CNTs into polymeric [...]

Electrospun Nanofibers of Conductive Polymer Composites

Sarac A.S., Istanbul Technical University, TR

Conjugated polymer composites with different dielectric properties can be widely used in electronics industry, sensors, batteries, smart windows and to reduce electromagnetic interference. In this study monodispersed polypyrrole composite nanospheres were synthesized by the presence [...]

Novel In Situ Nano Fibrous Reinforced All Polymer Polypropylene-Nylon Composite

Radhakrishnan S., Jain S., Khare A., Maharashtra Institute of Technology, IN

Self reinforced polymer composites are significantly different than the conventional fiber reinforced composites since there is no external additive and the polymer itself assumes fibrous morphology during melt /solution processing. In such materials, typically liquid [...]

Epoxy Toughening with Nano-Sized Amphiphilic Block Copolymer Micelles

Liu D., Sue H-J, Thompson Z.J., Bates F.S., Hillmyer M.A., Exponent, Inc., US

A model diglycidyl ether of bisphenol A (DGEBA) epoxy resin was modified with a poly(ethylene-alt-propylene)-b-poly(ethylene oxide) (PEP-PEO) block copolymer to improve fracture toughness. Two distinct nanoscaled morphologies were achieved in the cured systems: spherical micelles [...]

Timolol Maleate loaded Chitosan Mucoadhesive Nanoparticles for Ocular Drug Delivery system

Babu S.K., Franklin N., Senthil V., JSS College of Pharmacy, IN

The objective of this study involved the design of mucoadhesive nanoparticulate carrier system containing Timolol Maleate for ocular delivery to improve its corneal absorption. Nanoparticles were synthesised by template polymerization method and the process optimization [...]

Highly Crystalline Poly(lactic acid) (PLA) Alloys Containing Stereocomplexes

Oyama H.T., Abe S., Rikkyo University, JP

Poly(lactic acid) (PLA) is known as a bio-based polymer, which usually has low heat tolerance. Furthermore, the brittleness of PLA limits its applications. It is reported that the melting temperature (Tm) of crystalline stereocomplexes (sc) [...]

A Novel Conducting Polymer for Biosensor Applications

Soylemez S., Ekiz Kanik F., Ileri M., Ozdemir Hacıoglu S., Toppare L., Middle East Technical University, TR

In this study, 2-(4-fluorophenyl)-4,7-di(thiophene-2-yl)-1H-benzo[d]imidazole, a novel monomer, was synthesized and its polymer was used for the immobilization matrix for cholesterol oxidase (ChOx). A novel cholesterol biosensor was generated. The designed conducting polymer based biosensor showed [...]

Protein-based nanoparticles for hydrophilic coating

Kim S., Biswas A., Evans K., USDA/ARS/NCAUR, US

Cyanoacrylate nanoparticles have been studied in great detail over the past three decades with a view to their use as controlled release drug delivery materials. The mechanism of polymerization is anionic where the initiating species [...]