Engineering Living Tissue

Plain-language notes on growing bone and heart tissue, bioelectricity and building with biology.

Living tissue as an engineering problem

Tissue engineering began with a simple question: if the body can build bone, muscle and skin from cells, can we persuade cells to do the same outside the body, on demand and in the shape we need? Decades later the answer is a cautious yes. Skin substitutes and cartilage repair products are used in clinics, engineered heart tissue is used to test drugs, and research groups around the world are working on bone, blood vessels and more complex organs.

The field sits at a crossroads of disciplines. Cell biologists understand what cells need; materials scientists design the scaffolds they grow on; electrical and mechanical engineers build the bioreactors, sensors and stimulators that keep tissue alive and train it to function. Clinicians decide where it can help patients, and regulators decide how to show that it is safe. This site follows those threads in a series of introductory articles.

Every article is written for readers who are curious but not specialists. Each one explains the underlying science, what has been demonstrated so far and which problems are still open – because in a field that attracts a great deal of excitement, knowing what is not yet possible is just as useful as knowing what is.

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Growing Bone in the Lab

How scaffolds, stem cells and bioreactors are combined to build living bone grafts, and why the field is harder than it looks.

Engineering Heart Tissue

Heart muscle does not regrow after a heart attack. Engineered cardiac tissue is being developed both as a future repair material and, already today, as a model for testing drugs.

Bioelectricity: A Course Outline

Many cells in the body respond to electrical signals, and the body itself generates electricity every second. A sketch of how an introductory course on the subject can be structured.

Building with Biology

Cells as a construction material: from bioprinted tissue to grown leather and fungal bricks, and the questions this raises for design, industry and society.

Talking About Biotech

Short talks, public lectures and school visits: practical notes on explaining tissue engineering to audiences who are not specialists.

About this project

These notes are an independent educational project. They do not promote any company or treatment and are not medical advice. You can read more about the scope of the site on the about page, find books and journals on the reading page, or get in touch with a question or a correction.