Announcements - Lab-on-a-chip

3D printed molds for PDMS-based microfluidics tests on neurons

posted Jul 8, 2014, 8:40 PM by Tiberius Brastaviceanu

Biocompatibility of the 3D printing plastic SubG+ (MakerJuice Labs)

posted Mar 12, 2014, 5:46 PM by Tiberius Brastaviceanu   [ updated Mar 12, 2014, 5:46 PM by Frederic Durville ]

Biocompatibility of SubG+ plastic - Toxicity test - 2014-02-07

Collaboration with McGill

posted Feb 10, 2014, 8:14 PM by Tiberius Brastaviceanu   [ updated Feb 10, 2014, 8:16 PM by Frederic Durville ]



One step microfluidic device prototyping using a 3D printer

posted Oct 18, 2013, 12:09 PM by Tiberius Brastaviceanu   [ updated Oct 27, 2013, 12:32 AM by Frederic Durville ]

We used a B9Creator 3D printer and a soft polymer Spot-E elastic. We made 4 iterations of a simple design (see them on 3DWarehouse, and Thingiverse). The main goal is to estimate the potential of 3D printers in lab-on-a-chip prototyping. The channels are only 200 microns wide and 100 microns deep. 

Usually, microfluidic devices are made of PDMS with a glass cover on top. The PDMS is patterned using a master silicon wafer, which itself is patterned using VERY expensive techniques (chemical etching, laser and ion beam ablation, etc.), requiring clean rooms and highly skilled individuals. A one-step 3D printing method for prototyping would dramatically reduce the development costs and time. For example, we had 4 iterations of the same design within only 2 hours, based on feedback from water-based fluid propagation tests as seen in the video below.  

Problems with this first trial: some linkage outside of the channel due to surface imperfections. We are now trying thermal post-treatment, chemical post-treatment, and new mechanical designs with better seals.  

We believe that 3D printing has the potential to bring lab-on-a-chip in everyone's garage or to a fab lab near you.

NOTE: we are also launching a project for a micro 3D printer, contact us to know more or to get involved. 

testing a device

the printing process

R&D notes

Open doc to edit (members only)

Increased activity in the lab-on-a-chip project

posted Aug 23, 2013, 12:48 PM by Tiberius Brastaviceanu   [ updated Aug 23, 2013, 12:48 PM by Frederic Durville ]

There is definitely growing interest around our project on open source lab-on-a-chip technology. We are now having serious discussions about creating a SENSORICA local network in Asia, which would interface with the SENSORICA Montreal local network. At this point, the Montreal network is focused on putting together academic resources, to build a strong R&D cluster. The Asian network is focused more on applications, defining requirements, testing of new prototypes and deployment (market) of the technology. 

Contact Tibi, Bryan and Layne for more. 

Important documents

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