Advanced Materials & Manufacturing – Page 137

Simulation of desolvated self-assembly in a picoliter drop of colloidal solution by dissipative particle dynamics

Lebedev-Stepanov P., Photochemistry Center, RU

A method of dissipative particle dynamics of charged colloidal submicro- and nanoparticles in evaporating picoliter droplet of solution deposited on plane substrate is proposed for investigation of self-assembly and self-ordering of colloids during solute evaporation, [...]

A Simple and Robust Fabrication of Microwell Array by Pdms on a Glass Substrate for Cell-To-Cell Adhesion

Lee H., Row S., Xu L., Andreadis S.T., Oh K.W., SUNY at Buffalo, US

We describe a simple micro-fabrication method by using polydimethylsiloxane (PDMS) patterns on a glass substrate that enables simultaneous control of cell-to-cell adhesion. While the microwells used previously facilitated the cell-to-cell formation by PDMS stamping method, [...]

Pore wall charge patterning and spatial profiles of electrical conductivity in short nanopores

Tajparast M., Glavinovic M.I., McGill University, CA

Artificial nanopores are now used as filters, nanofluidic switches or biosensors. Given that their functioning often critically depends on pore conductivity it is important to determine what influences the pore conductivity and how far these [...]

Modeling of liquid pumping via microchannels

Berdenova B., Ainabayev A., Insepov Z., Hassanein A., Bralts V., Insepov Z., Purdue University, US

We present our finite element modeling and discuss the main principles of our water actuation technique for water transport in micron scale tubes. The effect of water flow actuation by application of surface acoustic waves [...]

Analysis of Stem Cell Culture Performance in a Microcarrier Bioreactor System

Ponnuru K., Wu J., Ashok P., Tzanakakis E.S., Furlani E.P., SUNY-Buffalo, US

Human pluripotent stem cells (hPSCs) are capable of differentiating into all somatic cell types and hold great potential for future clinical applications. Recent studies on cell culture in stirred tank bioreactors indicate that mechanical forces [...]

Droplet actuation on a digital microfluidic chip using a 5 volt battery

Rezaei Nejad H., University of British Columbia, CA

This paper presents a circuit using a 5-volt DC battery to actuate droplets on a DMF chip. The output of the circuit is a controllable high voltage, high frequency AC signal which can actuate a [...]

Electrowetting on screen printed paper based substrate

Yafia M., Najjaran H., University of British Columbia, CA

In this work, electrowetting on dielectric (EWOD) is performed on a paper based substrate. Electrode patterns are fabricated on a paper substrate using screen printing. Conventional photolithography fabrication techniques are replaced by screen printing conductive [...]

On-line production of polyelectrolyte coating on monodisperse alginate beads in an integrated microfluidic cartridge

Laffite G., Forvi E., Hadji C., Authesserre C., Alessio M., Costa G., Boizot F., Rivera F., CEA-LETI, FR

Continuous flow microfluidic devices have appeared to be a promising technology to automatise Polyelectrolytes multilayers (PEMs) coating on microbeads with repeatable and reliable results. However, no microfluidic devices have demonstrated PEMs coating on hydrogel beads [...]

Droplet Dispensing from Open to Close Digital Microfluidics

Rezaei Nejad H., University of British Columbia, CA

There are two types of DMF platforms: open and closed systems. Each platform has its own advantages. For instance, it is easier to access the droplet in the open systems; whereas, the closed system limits [...]

Open-Surface Microfluidics

Berthier J., Brakke K.A., Furlani E.P., Karampelas I.H., Delapierre G., CEA-LETI, FR

The developments of open-surface microfluidics (OSM) for biotechnology are recent, and motivated by the development of point-of-care (POC) and home-care systems. The advantages of capillary systems are (1) low cost due to easy and fast [...]