Cluster II: SMACT - Smart Microchannel technology

Introduction

The versatile development of nano and micro engineering techniques originally based on classical lithographic semiconductor production techniques can nowadays be used to manufacture micro channels with very small and precise geometries. The cluster ‘Smart micro channel technology’ is related to the use of these new engineering techniques for the construction of single nozzle and tube devices, but also of more complex nozzle and tube array structures with typical channel diameters in the order of 0.1 and 10 micron and channel lengths in the order of 1 - 100 micron.

Potential applications of special designed micro channel structures cover a broad spectrum of science, such as atomisation, drop on demand techniques, micro filtration, mixing and separation, fractionation, catalysis, microbiology, controlled drug delivery, micro patterning, micro contact printing, cross flow emulsification, etc. Smart coatings may be applied in and on the channels to obtain better functional properties depending on the application.

The SMACT Cluster in MicroNed

A focus point in this cluster is the use of different micro engineering and micro moulding techniques to fabricate micro channel structures. The main objective of the SMACT cluster is to build a platform on micro channel technology in which universities, small enabling companies and large industries will work together and respect each others goals and competences. Smart micro channel demonstrators will be designed, modelled and built showing the potential of a number of applications. In the process participants in a number of other Clusters will expectedly be involved.

The 8 Work Packages of the SMACT Cluster

II-A Atomisation

Dr. A.M. Versluis (m.versluit@utwente.nl)
The WP consists of 8 different projects that address a broad range of topics in the area. There are two main research lines: Particles in Particles (Monodisperse particles containing a dispersed phase of particles), and Ultra-High Througput Aerosols (Monodisperse charged aerosols at high throughput rates).

II-B Micro-Engineering of Supramolecular Assemblies

Prof. dr. E. van der Linden (erik.vanderlinden@wur.nl)
The partners in this WP focus on various approaches of (self assembly of microstructures: microspinning of fibrillar protein aggregates, electro-rheology, structured oil shells, structured water-in-water dispersions, 2D structured interfaces for encapsulation, and the development of food applications, materials and microdevices.

II-C Sensing and Diagnostics on a Chip

Dr. ir. M.A. Jongsma (maarten.jongsma@wur.nl)
The WP covers various topics connected to micro-sensing, e.g. photopatterning of silicon surfaces, various Field Effect Transistor (FET) designs, Peptide receptors and antibodies for sensor applications, preconcentration and integration into micro channel devices.

II-D Dynamic Micro Fractionation

Prof. dr. P.M. Sarro (p.m.sarro@tudelft.nl)
This WP is focused on development and production techniques for microsieves for fractionation of various suspensions, a.o. milk.

II-E Micro Coriolis Flow Sensor

Ir. R. Zwikker (rini.zwikker@demcon.nl)
The partners investigate new design options for micro coriolis flow sensors, new material combinations, and new and intelligent measurement techniques for small displacements, expected in the sensor.

II-F Fluorescence on a Chip

Prof. dr. ir. J. Westerweel (j.westerweel@tudelft.nl)
Topics range from Bio-Chips, Optical flow diagnostics, Polymeric micro-arrays, Control issues, Surface plasmon resonance devices, to Engineering and reference instrumentation and Instrument development

II-G Smart Micro Reactors

Prof. dr. ir. J.C. Schouten (j.c.schouten@tue.nl)
The WP contains the aspects of catalyst (support) development and fabrication, studies on different reactor materials, fluid channels and interfacing design, micro reactor design and fabrication.

II-H Emulsification

Prof. dr. ir. R.M. Boom (remko.boom@wur.nl)
The main themes are: Particles in Particles (Monodisperse particles when the dispersed phase contains particles), Small Sized Particles (Monodisperse emulsions with very small droplet sizes < 1 mm), and High Througput Emulsions (Monodisperse emulsions at high throughput rates).