BactoHealing interweaves various fields to explore the idea of Kin Tsugi with living matter and research the ethical implications of biotechnology. Inspired by the ancient Japanese craft to mend ceramics with gold or silver, we propose re-evaluating the concept of repair and introducing bioengineering technologies for growing a “scar” of biomatter – with the help of fungus and bacteria – over the cracks. This novel interpretation of Kin Tsugi with biotechnology is called Bio-Kin-Tsugi. Using synthetic biology approaches, novel biological materials as alternative adhesives will be developed. Simultaneously, the project invites a philosophical angle to challenge the relations between biology and technology and genetic engineering ethics. Art is creation, and we expect that the involved biotechnologists will be inspired to look differently at their science and engineering. The Bio-Kin-Tsugi objects, created in the lab, are inspiring artefacts and a point of departure for experience-oriented participatory artistic interventions, e.g., salons and workshops, where complex scientific contexts are communicated transparently. These practices contribute to the emerging and substantial international field of bio-arts and inform audiences to shape their opinions on biotechnologies. The proposal is a daring transdisciplinary collaboration between life sciences, humanities and the arts. Such constellations offer a novel way to interface academia with society.