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Researchers Invented Artificial Skin
Courtesy of Linköping University
A team of Swedish researchers has developed two methods for creating artificial skin with built-in blood vessels — the key for skin to regenerate and truly become “alive.”
Why It Hits: Skin — its components, how it works, and its relationship to our body — remains something of a mystery in science. What is clear: artificial skin without blood vessels is little more than a permanent Band-Aid. Vascularization is what allows skin to breathe, heal, and function like the real thing.
Behind The Skin: Researchers at Linköping University developed two methods for 3D bioprinting “vascularized” skin, according to Wired.
The first uses a bio-ink called “μInk,” where skin cells grow on “small spongy gelatin grains encased in hyaluronic acid gel.” When layered, it creates thick skin.
When this formula was transplanted onto mice, it not only formed skin but also generated new blood vessels within it.
The team also created a new tech called “REFRESH” (Rerouting of Free-Floating Suspended Hydrogel Filaments), which “enables the flexible construction of blood vessels in artificial tissues by printing and arranging threads of hydrogel.”
This allows networks of blood vessels to form freely within artificial skin, ensuring a steady flow of oxygen and nutrients.
The Future: Transplanting skin onto injured areas of the body through grafting is a major part of the healing process. But grafting comes with sacrifices — from scarring to limited functionality — making a bioengineered alternative a potential leap forward in regenerative medicine.
Prediction: Innovations in blood-vessel creation could pave the way for a world where entire organs can be grown and transplanted into the human body — with a reduced risk of rejection.
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Today’s email was written by David Vendrell.
Edited by Nick Comney. Polled and Copy-edited by Kait Cunniff.
Published by Darline Salazar.