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Kold Design

medical illustration of A Caesarean section is the delivery of a baby through a surgical incision in the abdomen and uterus. This illustration represents its anatomy and it was done in Adobe Photoshop.
medical illustration of Bone mechanical properties are influenced by the collagen matrix which is organized into hierarchical structures. The illustration was made in Adobe Illustrator.
medical illustration of SARS-CoV-2 leads to damage of lung tissue. This illustration was made using Adobe Illustrator and Photoshop based on chest CT scans in patients with COVID-19–associated pneumonia.
medical illustration of This illustration is part of a review in regard to the major mechanisms in epigenetic regulation. It was made in Adobe Illustrator.
medical illustration of A1AT protein model based on crystallographic structure via PDB. The model is finished in Adobe Illustrator.


Dr Nikola Kolundzic, founder of KOLD DESIGN is providing custom-made visual stories in science, education, technology, and healthcare. During his 10-year career as a scientific, medical, and technical illustrator, his mission is to provide unique visual communication to the highest standards of quality. The work consists of the production of accurate and eye-catching science, medical and technical infographics, instruction manuals, animations, pictograms, explanatory material, academic posters, brochures, presentations, and so on. PhD degree in Cell and Molecular Biology and wide-ranging academic background in natural science allow him to deeply understand, research, and visualize many scientific topics smoothly. His professional interests lie in both innovative design solutions and learning new technologies.


Color, Design, Information Graphics, 3D


Anatomy, Biotechnology, Cell biology / Histology, General Surgery, Molecular Biology, Orthopaedics, Reproductive Biology, Respiratory, Virology, Mechanism of Action (MOA), Pathology