The SotiriouLab in March 2019.

Principal Investigator

Assistant Professor Dr. Georgios A. Sotiriou


Dr. Georgios A. Sotiriou is an Assistant Professor in the Department of Microbiology, Tumor and Cell Biology at Karolinska Institutet (Birgitta Henriques-Normark Unit) focusing on nanobiotechnology and biomaterial technology. He received his PhD from the Particle Technology Laboratory (Prof. Pratsinis group) at ETH Zurich, Switzerland (2011) and carried out postdoctoral research stays in Harvard University (2013-2015, Center for Nanotechnology and Nanotoxicology, Prof. Demokritou group) and ETH Zurich (2015-2016, Drug Formulation and Delivery Lab, Prof. Leroux group) before joining MTC. His research has been recognized internationally by several awards including the 2011 AIChE Bionanotechnology Graduate Student award, the 2012 Best PhD Thesis Award from the Swiss Chemical Society, the 2012 ETH Medal for outstanding Dissertation and the 2013 Hilti Award for Innovative Research and the 2017 ERC Starting Grant.


  • Young Faculty Award, Mayo Clinic Symposium, Jacksonville, FL, USA (2018).
  • Invited contribution to “Futures” Issue of AIChE Journal 2018, recognizing the scholarly potential of new researchers.
  • European Research Council, ERC Starting Grant 2017.
  • Elsevier Top Cited Paper Award for 2011 and 2012, AIChE 2014, Atlanta, USA (2014).
  • Hilti Award for Innovative Research, ETH Zurich, Switzerland (2013).
  • TechConnect Innovation Award, Washington D.C., USA (2013).
  • ETH Medal for Outstanding PhD Thesis, ETH Zurich, Switzerland (2012).
  • Reg Davies Award, International Fine Particle Research Institute (IFPRI) Annual Meeting, Ludwigsburg, Germany (2012).
  • Best PhD Thesis Award, Division of Polymers and Colloids, Swiss Chemical Society (2012).
  • 1st place at the AIChE Bionanotechnology Graduate Student Award, American Institute of Chemical Engineers (AIChE) Annual Meeting, Minneapolis, MN, USA (2011).


PhD students

Padryk Merkl

PadrykPadryk Merkl graduated in 2017 with an integrated masters degree in chemical physics from the University of Edinburgh, during this time he spent 13 months as an industrial placement student at Unilever in Colworth studying hair using confocal Raman spectroscopy supervised by Dr. Paul Pudney. He wrote his master’s thesis on an ab-initio computational study of the phase stabilities of neon hydrates conducted under the supervision of Dr. Andreas Hermann. He also spent a summer working in Dr. Colin Campbell’s group at the University of Edinburgh investigating the use of surface enhanced Raman spectroscopy for 3D cell culture analysis. He is now looking forward to applying himself to developing novel nanobiotechnological tools to study and manipulate biological systems.



Felix Geissel

GeisselFelix Geissel graduated in 2015 with a bachelor’s degree in Nanotechnology from the University of Erlangen/Nuremberg, Germany. During that time, Felix spent five months in the group of Dr. Mikael Syväjärvi at Linköpings universitet to write his bachelor’s thesis about “3C-SiC and graphene heterostructures for new functionalities”. He continued moving to the UK and accomplishing his master’s degree in Biomaterials at the University of Manchester. The topic of his thesis was “Sol-gel synthesis of bioactive glass compositions for soft tissue regeneration”, supervised by Dr. Gowsh Poologasundarampilla. Felix is now using flame spray synthesis in order to manufacture nanosized multifunctional implant-coatings for osseointegration and antibacterial properties.


Jill Ziesmer

ZiesmerJill was born in Germany and finished her Bachelor’s studies in the field of Life Science Engineering at the HTW Berlin in 2017, specialising in drug release through nanocarriers in skin. Due to her high performance in her studies she was put forward as a scholar in the prestigious German Scholarship Foundation “Studienstiftung des deutschen Volkes”, where she was accepted in 2016. After finishing her Bachelor, she pursued with her academic career through conducting a Master of Research in Bioengineering at Imperial College London. There, she worked on skin attachment through nano-scaled keratin coating in osseointegrated prostheses under the supervision of Dr. Almquist. Inspired by the promising application of nanotechnology in medical contexts, she applied for PhD student position in Georgios Sotiriou’s group in 2018. Here, she is currently developing a plasmonic nanoparticle coating for micro needle patches in order to fight skin infection. When not being in the laboratory, Jill is also Co-Founder of the social business Siempre Energy, which aims to provide cheap access to renewable energy for rural habitants in Guatemala in order to fight poverty.




Undergrad students

Apostolos Zaganiaris

Apostolis is a student of Chemical Engineering with specialization in Materials in the National Technical University of Athens, Greece and he is currently an intern in Sotiriou Lab. During his internship he is developing silver nanoparticles-coated polymer with photothermal abilities as antimicrobial agent against biofilms.





MSc students

Dorian HenningDorian

Dorian carried out his Master thesis in our lab during 2017 in the field of enzyme-mimetic luminescent nano-based medical diagnostics.


0123_1Shuzhi Nicole Zhou

Nicole carried out her Master thesis in our lab from January to June 2018 in the field of anti-biofilm surfaces.


Isaac_passport_pictureChanghun Isaac Yun

Isaac carried out his Master thesis in our lab from December 2017 to June 2018 in the field of nanoparticles for in vitro and in vivo bioimaging.


Research Internships


Athina_photo Athina Eleftheraki

Athina, an undergrad student from the Democritus University of Thrace, spent the summer of 2018 in our lab as an AMGEN Scholar.



Justina_photoJustina Venckute Larsson

Justina, a BSc student at KI, spent the summer of 2018 in our lab as a “KI Summer School in Medical Research” intern.