August 2, 2021
Growing up in Sunland Park, New Mexico, David Zubia was interested in all things mechanical. He was attentive and asked questions of family and neighbors as they worked on their projects. His curiosity led to challenges and accomplishments.
In middle school, Zubia parlayed his interest in computers and high-fidelity sound into a 10-speed bicycle with a working car stereo complete with cassette player powered by eight D batteries. He also built the rack to hold it. When he was 14, he bought a junked car for $200 and rigged his own hoist with railroad ties and a car jack to remove the engine, which he refurbished while a freshman at Gadsden High School (GHS) in Anthony, New Mexico.
Image from Scientific Reports
“All right,” says David Kolesky, Ph.D. ’16. “The moment of truth.” As many times as he’s done this, there’s still always that pause. Wearing blue latex gloves and a white lab coat, Kolesky is about to see what the morning’s work has yielded. In front of him on a glass slide is a two-inch chip maybe a quarter-inch deep that he and two lab-mates spent the past few hours making: a translucent rectangle filled with a gelatinous mix of proteins and fibers mimicking the body’s extracellular matrix, the molecules that give support to living cells. And snaking through the middle of it, invisible for the moment, two tiny tubular structures, each a hundred microns or so in diameter (about the width of a human hair) both produced on the massive black 3-D printer standing a few feet away. One of those tubes, the straighter of the two, will be transformed into a working blood vessel. The other will become something called a proximal tubule, a subco
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