Papers – Page 416 – TechConnect Briefs

Surface Modification of Iron Oxide (Fe3O4) Micro- and Nano-particles with Stimuli Responsive Polymers

Vasquez E.S., Nicholson W.B., Walters K.B., Mississippi State University, US

In this work, the synthesis of stimuli responsive polymer brushes was carried out using surface-initiated atom transfer radical polymerization (ATRP) on iron oxide (Fe3O4) micro- and nano-particles. Bare Fe3O4 nanoparticles (20 nm nom. d(H)) were [...]

Spontaneous Liquid Flow in Microfluidic Systems by Gradual UV Irradiation of the Hybrid Polymer/TiO2 Nanorods Channels

Athanassiou A., Center for Biomolecular Nanotechnologies @ UNILE, IIT, IT

PMMA coatings enriched with colloidal TiO2 nanorods are found to exhibit a remarkable increase in their water wettability when irradiated with UV laser light. The effect can be completely reversed using successive storage in vacuum [...]

Poly(butyl terephthalate)/oxytetramethylene + oxidized carbon nanotubes hybrids: mechanical and tribological behavior

Brostow W., Broza G., Datashvili T., Kopyniecka A., TUHH, DE

Carbon nanotubes (CNTs) have been used for providing mechanical reinforcement to polymers [1, 2] – as have been other approaches. Much less attention than to mechanics has been paid to improvement of tribological properties of [...]

Silica–Polyacrylate Nanocomposite Pressure Sensitive Adhesives

Shanks R., RMIT University, AU

The aim of this research is to increase cohesion of a PSA by including silica nanoparticles. The silica nanoparticles form reversible agglomerates and bind polymer molecules by adsorption. The adhesive becomes a reversible gel. Under [...]

Fabrication of nanostructured microworms for sensor applications

Yagüe J.L., Dubach J.M., Ozaydin-Ince G., Clark H.A., Gleason K.K., Massachusetts Institute of Technology, US

A novel method to create in vivo sensors for multiple types of ions and molecules is presented. Using initiated Chemical Vapor Deposition (iCVD), a gentle process which preserves functional pendant groups and enables conformal coatings, [...]

Magnetically Induced Drop Movement on Nanorough Micropatterned Nanocomposites

Milionis A., Fragouli D., Anyfantis G.C., Bayer I., Cingolani R., Athanassiou A., Italian Institute of Technology, IT

Hybrid organic/inorganic surfaces are engineered by exploiting photo-lithographically tailored patterns of SU-8 polymer nanocomposites containing 2% wt colloidal nanoparticles of iron oxide. The role of the magnetic nanoparticles has two aspects. The first one is [...]

Controlling pH responsive polymersome assembly

Pearson R., Battaglia G., University of Sheffield, UK

Size is an important parameter in delivery systems. It plays a part in whether a particle avoids filtration, evades immune cell binding and by which internalisation pathways are available. However, it is hard to obtain [...]

Using liquid crystals to improve the performance of luminescent solar concentrator

Debije M., Eindhoven University of Technology, NL

The luminescent solar concentrator (LSC) has been proposed as a cost-effective solution to bring electricity generation from sunlight into the built environment. The basic LSC design consists of a plastic plate containing or topped by [...]

The Effect of Various Binder Additions on the Magnetic Properties of Soft Magnetic P/M Cores

Kim H.-J., Kim K.S., Kim S.I., Kim H.-J., Kim K.S., Kim S.I., Song J-J, Yoon S.C., Kim H.-J., Kim K.S., Kim S.I., Inje University, KR

Recently, there has been a growing demand for soft magnetic materials used in miniaturized electromagnetic devices with high performance, which can be used at a high frequency range. These applications include Switch Moded Power Supply, [...]

Influence of Silica Nanoparticles on the Thermal Transitions and Structure of PHBA-PET Nanocomposites

Miranda F., Acevedo A., University of Puerto Rico, PR

Composite films were produced by direct melt-blending of the polymer with up to 1.5 vol% loadings in a Thermo-Haake MiniLab2 twin-screw extruder. Thermal transitions were determined by differential scanning calorimetry and thermogravimetric analysis. Structure and [...]