Microfluidics is an exciting new field of science and engineering that enables very small-scale fluid control and analysis, allowing instrument manufacturers to develop smaller, more cost-effective and more powerful systems. With this lab-on-a-chip technology, entire complex chemical management and analysis systems can be created in a microfluidic chip and interfaced with, for example, electronics and optical detection systems.
Headed by Professor Alastair Lewis, the team from the National Centre for Atmospheric Science is undertaking initial studies to evaluate the feasibility of developing a portable microfluidics-based environmental testing module. Today’s air monitoring procedure usually requires the collection of air samples at remote locations, which then have to be returned to a laboratory for analysis using large and expensive gas chromatography instruments.
The procedure is slow and costly. Professor Lewis’s research is aimed at developing a small-scale portable analysis system that will enable air quality to be analyzed and recorded in-situ. Such a system would have a dramatic effect on the speed of response to adverse changes in air quality.
"This is a great application of our technology," said Gillian Davis Regional Manager at Dolomite. "This is what microfluidics does best. It enables smaller, yet more powerful systems to be developed. Systems that may have been laboratory-based, can become more portable or even hand held, and at the same time can have increased accuracy and repeatability."
For this project Dolomite had to create a microfluidic device with an amazing 7.5m of micro-channel running through a 10cm square piece of glass. This is one of the largest devices and longest channels so far developed by Dolomite (this technology tends to be based in a smaller format). The fabrication processes used to create such a microfluidic device have some similarity to those used in the electronics industry.
The channels through which the fluids flow and interact are etched into materials such as glass or polymers using similar photolithography processes, for example. The patterned layers are then very accurately aligned and fused together and drilled to provide microscopic ports through which the chemicals or gases can enter and leave the device.
"The real challenge with this project was the fusing of such large etched glass plates," said Gillian Davis. "Aligning the plates to ensure the etched microchannels were perfectly matched took a great deal of experience and put our capabilities to quite a test."
Louisa Watts | alfa
Waste in the water – New purification techniques for healthier aquatic ecosystems
24.07.2018 | Eberhard Karls Universität Tübingen
Plenty of habitat for bears in Europe
24.07.2018 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig
New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference
Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
17.08.2018 | Event News
08.08.2018 | Event News
27.07.2018 | Event News
17.08.2018 | Physics and Astronomy
17.08.2018 | Information Technology
17.08.2018 | Life Sciences