Living tattoos; Create advanced 3D health tracker with 3D bacterial printing!


The vivid tattoo of the new invention of a team of MIT scientists has been made through three-dimensional print of living bacteria.

Electronic tattoo technology and smart ink have long been recognized as a next step in healthcare tracking technology, and while scientists around the world are trying to find new ways to use biological sensors to make smart tattoos , researchers at MIT They thought they would make a system responsive to various chemical stimuli by genetically manipulating living bacterial cells.

Details of making tattooed alive

The first step in the development phase of this invention is to find an organic cell that can manipulate and tolerate the pressure caused by the placement of a nozzle of a 3D printing device. After many studies, the bacterium has a high-density cell wall and Considerable pressure tolerance was selected. On the other hand, this organism is compatible with the hydrogel used to enhance accuracy in 3D printing technology.

To test the technique of making tattooed alive , the team put a few printed bacteria in the form of tree branches on an elastomer layer, and each bacterial strain was designed to respond in a specific way to chemical stimulants. After placing this piece of bacteria on the hands of a volunteer who was impregnated with various chemicals, each branch was expected to come in contact with its stimulus and the approved method was officially approved.

Research findings from MIT researchers have a lot of sci-fi stuffing, and some experts believe that making tattooing alive can be one of the first steps in the development of a alive computer; it is possible that advanced structures that contain various engineered cells, And in the near future, newer research will lead to the creation of an organic system that replicates the connection that exists between transistors and micro-chips in a modern computer.

One of the researchers at the Living Tattoo Development Team, Hyunwoo Yuk, says the ultimate goal of working on these ideas is to achieve technology that provides the necessary equipment to print the wearable components that are capable of computing.

At the moment, simpler uses such as the production of health labels that are stimulated by stimuli in the body sweat or the pH of the environment and the temperature of the surrounding area are expected, and it is expected that in the coming years, more and better health trackers More trouble with this technology, the paper by Yuk’s colleagues has been published in the Journal of Advanced Materials.

In the following, we invite you to see a short video on the introduction of living tattoos: