The University of Sydney – TechConnect Briefs

Effect of Roughness on Wettability of a Surface by Nano-droplets: Correlation With the Slip Length in Nanofluidics

Jabbarzadeh A., The University of Sydney, AU

Surface characteristic govern friction, flow, wettability and many other properties in solid-liquid interfaces. Wettability of surfaces is usually determined by measuring the contact angle of a single droplet put on the surface. Liquid repelling surfaces [...]

Nanotribology and Lubrication at Nanoscale: Molecular Dynamics Simulation Studies

Jabbarzadeh A., The University of Sydney, AU

Increasing technological advances to make devices and processes at the nanoscale, have made it necessary to effectively minimize the friction and adhesion of moving mechanical assemblies, such as those in micro- or nano-electromechanical (MEMS/NEMS) devices. [...]

Odd-Even Effect in Self Assembly and Phase Transition of Alkanethiols Monolayers (SAMs) on Au (111) Surfaces

Ramin L., Jabbarzadeh A., The University of Sydney, AU

Molecular dynamic simulations were conducted to predict the structural properties of n-alkanethiols CH3(CH2)n-1SH (n=4-22) self assembled monolayers (SAMs) on Au (111) surfaces. We studied the effects of chain length on the structural properties, including orientation [...]

Preparation of Novel Ferrocene-based Shell Cross-linked Thermoresponsive Hybrid Micelles with Anti-tumor Efficacy

Wei H., Dehghani F., The University of Sydney, AU

Shell cross-linked (SCL) thermoresponsive hybrid micelle consisting of a cross-linked thermoresponsive hybrid shell and a hydrophobic core domain was synthesized from poly(N-isopropylacrylamide-co-aminoethyl methacrylate)-b-polymethyl methacrylate (P(NIPAAm-co-AMA)-b-PMMA) amphiphilic block copolymers via a two-step process: micellization of P(NIPAAm-co-AMA)-b-PMMA [...]

Molecular Dynamics Simulations of Flow over a Nano-cylinder in a Rectangular Nano-channel

Jabbarzadeh A., The University of Sydney, AU

This paper reports the molecular dynamics simulation results obtained for flow in a rectangular nano-channel of liquid alkanes around a nano-cylinder. The channel and cylinder have an explicit atomic structure and the liquid alkane (paraffin) [...]

An Analytical Model for Multi-layer and Multi-electrode Piezoelectric Ceramic Actuators

Wang B-L., Mai Y-W., The University of Sydney, AU

The use of piezoelectric ceramics in multilayer actuator is increasing. This paper studies electroelastic field concentrations ahead of electrodes for multilayer piezoelectric actuators. The electrodes are vertical to and terminated near the edges of the [...]

Highly Dispersible Microporous Carbon Particles from Furfuryl Alcohol

Liu J., Yaoa J-F, Wanga H-T, Chan K-Y, The University of Sydney, AU

Molecular sieve carbons (MSCs or carbon molecular sieves) are a class of microporous, amorphous high-carbon materials, and they share with zeolites the ability to distinguish molecules on the basis of size and shape. MSCs have [...]