PhD Students

Felix Geissel


Felix 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


Jill 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.

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Anshika Maheshwari


Anshika is currently a PhD student in our group focusing on the development of nanoparticles as nano-vaccines and bioimaging agents. She has obtained a MSc from the University of Angers as an Erasmus Mundus joint masters in Nanomedicine degree student.