- PLA 3D printed components, acrylic, electronic components, tattoo needle, PLA/saline solution, latex-free gloves, and fasteners


Biorecycling Machine Base (160 x 100 x 60 mm)
Hand-held Injection device (165 x 70 x 30 mm)


The Biorecycling Machine is a speculative domestic recycling device based on polylactic acid’s biocompatibility with the human body and the current lack of end-of-life options for polylactic acid. Polylactic acid is already an extensively used polymer in medical applications such as drug delivery systems as well as short and long-term implants such as sutures, anchors, screws. The and other load-bearing biomedical implants can safely reside inside human tissue for extended periods of time while getting absorbed and eventually excreted by the body. Each Biorecycling Machine features a handheld injection device based on a rotary tattoo device to deliver powdered PLA that has been mixed into saline solution into a person’s intramuscular tissue. People can turn their unwanted PLA 3D prints into a granulated powder then mix it with the saline solution provided. Then, they clean the small section of skin they will be depositing the PLA into using an antiseptic swab. Finally, they deposit the PLA solution into the tissue using the hand-held injection device. Upon entering the body, the process of hydrolysis begins where the PLA will be slowly turned into lactic acid, carbon dioxide, and water and after thirty weeks the body will have excreted them through urination or respiration. Although this is a speculative Biorecycling device it is estimated that microplastics are currently present inside 50% of humans on Earth.


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