A handheld ‘bio pen’ developed in the labs of the University of Wollongong (UOW) will allow surgeons to design customised implants on-site and at the time of surgery.

The BioPen, developed by researchers from the UOW-headquartered Australian Research Council Centre of Excellence for Electromaterials Science (ACES), will give surgeons greater control over where the materials are deposited while also reducing the time the patient is in surgery by delivering live cells and growth factors directly to the site of injury, accelerating the regeneration of functional bone and cartilage.

The BioPen works similar to 3D printing methods by delivering cell material inside a biopolymer such as alginate, a seaweed extract, protected by a second, outer layer of gel material. The two layers of gel are combined in the pen head as it is extruded onto the bone surface and the surgeon ‘draws’ with the ink to fill in the damaged bone section.

A low powered ultra-violet light source is fixed to the device that solidifies the inks during dispensing, providing protection for the embedded cells while they are built up layer-by-layer to construct a 3D scaffold in the wound site.

Once the cells are ‘drawn’ onto the surgery site they will multiply, become differentiated into nerve cells, muscle cells or bone cells and will eventually turn from individual cells into a thriving community of cells in the form of a functioning a tissue, such as nerves, or a muscle.

The device can also be seeded with growth factors or other drugs to assist regrowth and recovery, while the hand-held design allows for precision in theatre and ease of transportation. 

Read more here.

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    Wow technology is crazy… Got my knee chipped off? It’s okay I can draw it back in. Literally it’s like the Spongebob...
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