MIT Researchers Use 3D Printing to Create a Self-Heating Microfluidic Device

You don’t have to be an engineer with extensive technical knowledge to come into contact with microfluidics and their applications. The aim of microfluidic systems is to control small quantities of liquids in tiny networks and channels, and to discuss and analyze their effects. Furthermore, microfluidic components are used in a wide range of applications, for example in medical technology, biotechnology, process and sensor technology and also in consumer goods. For example, microfluidics are used to detect diseases in blood and fluid samples. A prominent example from the recent past, which we have probably all experienced at one time or another, is do-it-yourself Covid-19 tests.

However, the challenge with microfluidic applications is that some chemical reactions only take place at certain temperatures and thus require more complex microfluidic devices. These are often manufactured in clean rooms and contain heating elements made of gold and platinum. The manufacturing process is therefore expensive, complicated and difficult to scale up. This is where a research project at MIT (Massachusetts Institute for Technology) comes in, where scientists have been working on the development of a 3D-printed, self-heating microfluidic device, as announced in a press release yesterday.

Covid self-tests are a prominent example of microfluidic applications (photo credits: Pixabay)

The research group, led by principal scientist in MIT’s Microsystems Technology Laboratories (MTL) Luis Fernando Velásquez-García, used 3D printing to produce a self-heating microfluidic device that can transport liquids and trigger chemical reactions. The mini-reactor can analyze substances and detect diseases. As the device was produced in a single print run, it offers forward-looking prospects for the cost-effective production of precise measuring instruments for the early detection of diseases. This is particularly interesting for developing countries, where there is often no optimal laboratory environment.