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  3. PostDoc position Bubble Gun/ needle-free delivery of liquid jets

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PostDoc position Bubble Gun/ needle-free delivery of liquid jets

As part of the ERC Starting grant project BuBble Gun, we are looking to fill three PhD positions (4 years), and one post-doc position (2 years).The needle- …

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Drienerlolaan, Enschede, Overijssel
Tijdelijk contract / Tijdelijke opdracht
Uren per week:
40 - 40 uur
€ 3255 - € 4274 per maand


As part of the ERC Starting grant project BuBble Gun, we are looking to fill three PhD positions (4 years), and one post-doc position (2 years).

The needle-free delivery of liquid jets into soft and heterogeneous substrates, e.g. human tissue, has been hindered by the need to reach specific penetration depths with energy efficient means, by the break-up of jets that impedes control over the dose delivery, and by liquid splash-back after impacting the substrate that causes cross-contamination between injections. BuBble Gun aims at overcoming these challenges.
BuBble gun will advance scientific knowledge at the intersection of microfluidics, physics, and bioengineering, to enable unprecedented physical understanding and control over cavitation, jetting, and injection phenomena. We will develop a portable energy-efficient injection platform by using ultra-high-speed imaging, and quantifying injections with experimental resolutions below the microsecond and micrometer scales. The rheological properties of the jets will be tuned with biocompatible additives to ensure cohesion, before injecting them into in-vitro targets and ex-vivo skin. Numerical models will assist in untangling the influence of microfluidic configuration and material properties on the injection outcome.

The research group The Mesoscale Chemical Systems is part of the MESA+ Institute for Nanotechnology, and of the Technical Medical (TechMed) Centre. The group has unique expertise in micro and nanofabrication, backed by the outstanding experimental facilities of MESA+ NanoLab. The research and valorization activities of the group encompass microfluidics, ultrasound technologies, electrochemistry and bioengineering. MCS offers a rich, multidisciplinary and very international (over a 12 nationalities) environment where experimental physics, advanced chemical processes and simulation work are applied to solve relevant societal problems, as well as curiosity-driven research. The group is in embedded within an international network and promotes international collaboration and exchanges. In particular, this project will be in collaboration with the Department of Mechanical Engineering at the Massachusetts Institute of Technology MIT, and the School of Medicine in Harvard, USA.

The main activities will be on the design and construction of the experimental setup that will be used by the three PhD students working on this project. This setup will shed light on the physicochemical mechanisms related to thermocavitation-driven jet injections with a platform for other scientific uses. As an experienced researcher, you will assist the PhD candidates and actively participate in the dissemination of the scientific results of the team.


  • You hold a PhD degree in a related topic: physics, (bio)mechanical engineering, microfabrication
  • Ample experience in experimental techniques of fluid dynamics and preferentially in ultra-fast imaging
  • Able to function effectively within a multidisciplinary team, and handle a high degree of professional autonomy
  • You are expected to perform research of high quality, help in coordinating between partners (researchers and industry) contributing to the success of the project
  • Excellent language skills in English
  • Entrepreneurial, innovative and result-focused

Information and application
An interview with a scientific presentation will be part of the interview process.
For more information please contact Assistant Professor Dr. David Fernandez Rivas (d.fernandezrivas@utwente.nl)
Principal Investigator, Mesoscale Chemical Systems Group, Faculty of Science and Technology TNW, University of Twente. https://www.utwente.nl/en/tnw/mcs/people/academic_staff/david_fernandez_rivas/

Deadline for applications is set to 11-11-2019. Please use the link below to apply.


As a Postdoc you will be offered a full-time (38 hours/week) position for 18 months.
Salary and conditions will be in accordance with the Collective Labour Agreement (CAO) of the Dutch Universities.
Gross monthly salary depends on experience and qualifications and ranges from € 3255,- to € 4274,-.
Additionally, the University of Twente provides excellent facilities for professional and personal development, a holiday allowance (amounts to 8%), an end-of-year bonus (amounts to 8,3%) and a number of additional benefits.