The Most Important Scientific Discoveries Of 2015

Published December 27, 2015

5. The UK approves three-person in-vitro fertilization, which can help eliminate certain diseases.

Scientific Discoveries 2015 IVF

In-vitro fertilization. Image Source: Flickr

After a February vote, UK fertility clinics gained the ability to create what some have deemed “three-parent babies.” In this procedure, in-vitro fertility clinicians use the DNA material of both intended parents, plus minimal DNA from an egg donor if the intended mother’s mitochondria is damaged. Mitochondria convert food into usable energy, and are only passed down by the mother. If the mother’s mitochondria are genetically damaged, this can mean that the future baby may have have insufficient energy to keep the heart beating. The donor mitochondria is meant to replace the damaged mitochondria, thus producing a healthy baby.

Next up comes questions of licensing. Once the regulatory framework is set up, researchers expect the first “three-person baby” to be born next year.

6. Harvard Bioengineers create cyborg tissue.

Scientific Discoveries 2015 Engineered Tissue

Engineered heart valve tissue. Image Source: Wikimedia Commons

The history of cyborg tissue goes back a few years, when bio-engineers at Harvard University grew rat tissue at nanoscale – using collagen as a 3D scaffold of sorts. Back then, the researchers used the tissue mainly as a sensor network for medical testing. Researchers later wove nanowires and transistors into the scaffold, where they were able to create a half-living, half-machine blood vessel. Fast forward three years, and they have now successfully injected a nanoscale nerve scaffold into the brains of mice, without damage. What does any of this mean? We’re one step closer to treating diseases like Parkinson’s, or afflictions like paralysis.

“This opens up a completely new frontier where we can explore the interface between electronic structures and biology,” says Charles Lieber, the lead researcher. The next step is to “wire up tissue and communicate with it in the same way a biological system does.”

author
Erin Kelly
author
An All That's Interesting writer since 2013, Erin Kelly focuses on historic places, natural wonders, environmental issues, and the world of science. Her work has also been featured in Smithsonian and she's designed several book covers in her career as a graphic artist.
editor
Savannah Cox
editor
Savannah Cox holds a Master's in International Affairs from The New School as well as a PhD from the University of California, Berkeley, and now serves as an Assistant Professor at the University of Sheffield. Her work as a writer has also appeared on DNAinfo.
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Kelly, Erin. "The Most Important Scientific Discoveries Of 2015." AllThatsInteresting.com, December 27, 2015, https://allthatsinteresting.com/scientific-discoveries-2015. Accessed April 26, 2024.