Quick facts

    • Stockholm
  • Full time
  • Recruitment


  • Physics


  • Phd

Apply by: 2024-03-07

Doctoral student in acoustofluidics applied to protein crystallography

Published 2024-02-09

Project description

Third-cycle subject: Physics

The aim of the research project is to develop methods and design a device for acoustic focusing of protein crystals that can be integrated with state-of-the-art nozzles for serial crystallography. The position includes following tasks: development of microfluidic chips, ultrasonic transducers, acoustic cells, flow regulation, and integration of this hardware in existing 3D-printed nozzles for serial crystallography as well as existing microscopes for 2D-imaging of protein crystals. The project also includes participation in crystallography experiments at large-scale x-ray infrastructure (synchrotron, free-electron laser), which requires sample preparation of crystals in advance as well as subsequent data analysis. Work will be performed at the division of Biomedical and X-ray Physics (AlbaNova University Center) in close collaboration with the division of Biophysics (Science for Life Laboratory), both belonging to the department of Applied Physics at KTH. The project also requires frequent traveling to large-scale infrastructure and collaborators in Lund and Hamburg. We are looking for a PhD student that can work on the project long term and actively maintain the collaborations with MAX IV (Lund) and CFEL (Hamburg). A suitable background is a MSc degree with experimental work in applied physics, biophysics, microsystems or similar research areas. The position is fully financed for 4 years by VR RÅC. 

Supervision: Jonas Sellberg (main supervisor), Martin Viklund (co-supervisor) and Björn Hammarström (co-supervisor) are proposed to supervise the doctoral student. Decisions are made on admission.

What we offer

  • The possibility to study in a dynamic and international research environment in collaboration with industries and prominent universities from all over the world.Read more
  • A workplace with many employee benefits and monthly salary according to KTH’s Doctoral student salary agreement.
  • A postgraduate education at an institution that is active and supportive in matters pertaining to working conditions, gender equality and diversity as well as study environment.
  • Work and study in Stockholm, close to nature and the water.
  • Help to relocate and be settled in Sweden and at KTH.
  • Frequent traveling to international collaborators in Lund and Hamburg.

Admission requirements

To be admitted to postgraduate education (Chapter 7, 39 § Swedish Higher Education Ordinance), the applicant must have basic eligibility in accordance with either of the following:

  • passed a second cycle degree (for example a master's degree), or
  • completed course requirements of at least 240 higher education credits, of which at least 60 second-cycle higher education credits, or
  • acquired, in some other way within or outside the country, substantially equivalent knowledge
  • performed experimental work in applied physics, biophysics, microsystems or similar research areas

In addition to the above, there is also a mandatory requirement for English equivalent to English B/6, read more here


In order to succeed as a doctoral student at KTH you need to be goal oriented and persevering in your work. During the selection process, candidates will be assessed upon their ability to:

  • independently pursue his or her work
  • collaborate with others,
  • have a professional approach and
  • analyse and work with complex issues.

After the qualification requirements, great emphasis will be placed on personal competency. 

Target degree: Doctoral degree

Information regarding admission and employment

Only those admitted to postgraduate education may be employed as a doctoral student. The total length of employment may not be longer than what corresponds to full-time doctoral education in four years ' time. An employed doctoral student can, to a limited extent (maximum 20%), perform certain tasks within their role, e.g. training and administration. A new position as a doctoral student is for a maximum of one year, and then the employment may be renewed for a maximum of two years at a time. In the case of studies that are to be completed with a licentiate degree, the total period of employment may not be longer than what corresponds to full-time doctoral education for two years.

Union representatives

You will find contact information for union representatives on KTH's website.

Doctoral section (Students’ union on KTH Royal Institute of Technology)

You will find contact information for doctoral section on the section's website.

To apply for the position

Apply for the position and admission through KTH's recruitment system. It is the applicant’s responsibility to ensure that the application is complete in accordance with the instructions in the advertisement.

Applications must be received at the last closing date at midnight, CET/CEST (Central European Time/Central European Summer Time).

Applications must include the following elements:

  • CV including your relevant professional experience and knowledge.
  • Application letter with a brief description of why you want to pursue research studies, about what your academic interests are and how they relate to your previous studies and future goals. (Maximum 2 pages long)
  • Copies of diplomas and grades from previous university studies and certificates of fulfilled language requirements (see above). Translations into English or Swedish if the original document is not issued in one of these languages.Copies of originals must be certified.
  • Representative publications or technical reports. For longer documents, please provide a summary (abstract) and a web link to the full text.

Other information

The position may include security-sensitive activities. To become authorized, you therefore need to pass a possible security check.

Striving towards gender equality, diversity and equal conditions is both a question of quality for KTH and a given part of our values.

For information about processing of personal data in the recruitment process please read here.

We firmly decline all contact with staffing and recruitment agencies and job ad salespersons.

Disclaimer: In case of discrepancy between the Swedish original and the English translation of the job announcement, the Swedish version takes precedence.