Photo of Johan Junker

Johan Junker

Affiliated Researcher, Docent

My research focuses on development of new diagnostics and therapeutics for both acute and non-healing wounds, ranging from novel antimicrobial agents to treat wound infection to cell-biomaterial constructs to regenerate the skin.

Experimental Plastic Surgery and Experimental Traumatology

The loss or failure of tissues and organs encompasses most of modern health care. In the context of plastic surgery, the skin (including the epidermis, dermis and subcutaneous tissues) is our main focus. Many wounds fail to heal by themselves, either simply due to large wound size, or due to a combination of underlying factors (poor vascularization, infection, etc).
My research aims at increasing our understanding of the wound healing process, and using this knowledge to create new therapeutic modalities. The research is translational, meaning it spans from basic biology to clinical implementation. Studying wound healing with such a broad approach requires a diverse set of methodologies, including transcriptomics, proteomics, histology, immunohistochemistry and more. Another enabling aspect is the wide range of model systems used, from in vitro and ex vivo to large animal models and humans.
In the context of traumatic injuries, both in civilian and military contexts, my research also aims at evaluating various clinical interventions as well as optimal ways of training using simulators of traumatic injury.

Publications

2026

Elisa Zattarin, Wasihun Bekele Kebede, Zeljana Sotra, Rozalin Shamasha, Annika Starkenberg, Valentina Guerrero Florez, Lalit Pramod Khare, Torbjorn Bengtsson, Hazem Khalaf, Emma Björk, Jonathan Rakar, Johan Junker, Daniel Aili (2026) Enzyme responsive antimicrobial hyaluronan-nanocellulose hybrid wound dressings for the treatment of infected wounds Bioactive Materials, Vol. 61, p. 150-171 (Article in journal) https://dx.doi.org/10.1016/j.bioactmat.2026.01.042
Wasihun Bekele Kebede, Elisa Zattarin, Zeljana Sotra, Emanuel Wiman, Annika Starkenberg, Sneha Kollenchery Ramanathan, Jonathan Rakar, Tsige Gebre-Mariam, Tesfaye Sisay Tessema, Marten Skog, Petter Sivler, Torbjorn Bengtsson, Hazem Khalaf, Johan Junker, Daniel Aili (2026) Antimicrobial Peptide-Modified Nanocellulose-Silver Nanoparticle Composite Wound Dressings ACS Applied Nano Materials, Vol. 9, p. 1571-1583 (Article in journal) https://dx.doi.org/10.1021/acsanm.5c04901
Valentina Guerrero Florez, Elisa Zattarin, Lalit Pramod Khare, Emanuel Wiman, Torbjorn Bengtsson, Hazem Khalaf, Johan Junker, Lars Ojamäe, Magnus Odén, Daniel Aili, Emma Björk (2026) Protein-capped mesoporous silica SBA-15 enables protease-responsive and controlled antimicrobial peptide delivery Journal of Colloid and Interface Science, Vol. 703, Article 139151 (Article in journal) https://dx.doi.org/10.1016/j.jcis.2025.139151

2025

Philip Lifwergren, Viktoria Schoen, Sajjad Naeimipour, Lalit Pramod Khare, Anna Wunder, Hanna Blom, Jose Gabriel Martinez Gil, Pierfrancesco Pagella, Anders Fridberger, Johan Junker, Daniel Aili (2025) Printing and Rerouting of Elastic and Protease Responsive Shape Memory Hydrogel Filaments Advanced Healthcare Materials, Vol. 14, Article 2502262 (Article in journal) https://dx.doi.org/10.1002/adhm.202502262
Rozalin Shamasha, Sneha Kollenchery Ramanathan, Kristin Oskarsdotter, Fatemeh Rasti Boroojeni, Aleksandra Zielinska, Sajjad Naeimipour, Philip Lifwergren, Nina Reustle, Lauren Roberts, Annika Starkenberg, Gunnar Kratz, Peter Apelgren, Karin Saljo, Jonathan Rakar, Lars Kolby, Daniel Aili, Johan Junker (2025) Biphasic Granular Bioinks for Biofabrication of High Cell Density Constructs for Dermal Regeneration Advanced Healthcare Materials, Vol. 14, Article 2501430 (Article in journal) https://dx.doi.org/10.1002/adhm.202501430

Research

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