MIT Engineers 3D Print Living Cells Into Interactive Devices That React Instantly

Описание: Imagine A Tattoo That Glows When It Senses Chemicals On Your Skin—MIT Engineers Just Made It Real!

Engineers at MIT have developed a revolutionary 3D printing technique using genetically programmed living cells. This groundbreaking method mixes living bacteria with hydrogels and nutrients to create interactive, 3D-printed devices that respond to chemical, molecular, and environmental stimuli.

One stunning demonstration is a “living tattoo”: a thin, transparent patch patterned with bacteria in the shape of a tree. Each branch reacts to a specific chemical, lighting up in real-time when exposed. Beyond tattoos, this technique could lead to wearable sensors, flexible displays, drug-producing implants, and even living computers.

The 3D printing process allows high-resolution layering of cells, enabling complex communication between bacterial cells essentially letting these living devices “compute” signals and respond dynamically. With applications ranging from healthcare to bioengineering, this research opens a new frontier of responsive living materials.

Credit & Reference: Liu, X., Yuk, H., Lin, S., Parada, G. A., Tang, T.-C., Tham, E., de la Fuente-Nunez, C., Lu, T. K., & Zhao, X. (2017). 3D Printing of Living Responsive Materials and Devices. Advanced Materials. DOI: 10.1002/adma.201704821

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