School of Engineering Sciences in Chemistry, Biotechnology and Health at KTH

Job description

In recent years, nanocelluloses have emerged as very interesting building blocks in new biomaterials. Cellulose nanofibrils (CNF), with a cross section of 5x5 nm and a length over 1 µm, can be extracted from different types of plants, but our focus has been on extracting them from the Swedish forest raw material. The anisotropic fibrils have a very high longitudinal/transverse ratio (>200) and a very high E-modulus (>130 Gpa), which makes them highly interesting as reinforcement materials in composites, among other things. It has also been shown that the fibrils can be very interesting as functional chemicals in e.g. papermaking, especially if they are functionalized with new reactive groups or by combining them with other chemicals/nanoparticles using the well-known Layer-by-Layer (LbL) technology where alternating cationic and anionic polyelectrolytes/nanoparticles are combined to achieve process and/or product improvements.

In several projects, we have succeeded in showing that, for example, periodate oxidation of the fibrils can be a very interesting development option to create a completely new type of nanomaterial that can covalently react with dissolved polymers/polyelectrolytes as well as with solid materials. The dialdehyde-containing fibrils have also been shown to be able to create both dry strength and wet strength in fibre and fibril-based foams. In preliminary experiments, we have also succeeded in showing that these fibrils can function as strength-enhancing additives in paper production.

Within the BioFunChem project, our focus is to create new bio-based functional chemicals for use in papermaking since it will necessary in the near future to replace the fossil-based chemical systems that exist today. The initial work will be focused on the use of different types of CNF which can also be combined with other bio-based materials to achieve the desired end properties of different paper qualities. The work will be perfomed in a cross-disciplinary environment within KTH but also together with the research institute RISE Bioeconomy.

What we offer

  • A position at a leading technical university that generates knowledge and skills for a sustainable future.
  • Engaged and ambitious colleagues along with a creative, international and dynamic working environment
  • Work in Stockholm , in close proximity to nature
  • Help to relocate and be settled in Sweden and at KTH

Read more about what it is like to work at KTH



  • A doctoral degree or an equivalent foreign degree

For this research position, a doctoral degree or an equivalent foreign degree, in bio-based nanotechnology and colloid chemistry for bio-based nanomaterials is suitable.  Also, research expertise, teaching ability and the ability to inform and work towards research results being utilised in practice are requirements .

Personal skills

We are looking for a person with good collaborative abilities and independence.

Preferred qualifications

Additional knowledge in Fibre Technology, Polymer Chemistry and/or polyelectrolyte gels will be considered a merit when comparing different candidates. As well as experience of developing and leading activities and staff, knowledge of diversity and equal opportunity issues, with specific focus on gender equality are meritorious for the position.

Great emphasis will be placed on personal skills.

Trade union representatives

You will find contact information to trade union representatives at KTH's webbpage.

To apply for the position

Log into KTH's recruitment system in order to apply for this position. You are the main responsible to ensure that your application is complete according to the ad. Your complete application must be received at KTH no later than the last day of application.

Your complete application must be received by KTH no later than the last day of application, midnight CET/CEST (Central European Time/Central European Summer Time). 

About the employment

The employment is valid for a limited time according to the agreement - for up to 1 year, with access according to agreement.

Other information

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

Type of employment Special fixed-term employment
Contract type Full time
First day of employment According to agreement
Salary Monthly salary
Number of positions 1
Full-time equivalent 100%
City Stockholm
County Stockholms län
Country Sweden
Reference number C-2023-1020
  • Lars Wågberg, +46(8)7908294
Published 29.May.2023
Last application date 12.Jun.2023 11:59 PM CEST

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