Microscopic solar panels could help shape 3D-printed biological tissue

By changing the diameter and layout of solar cells placed on a computer chip, researchers at Penn State harnessed beams of light to change the alignment of cells. Each photo visualizes the solar cells impact on cell alignment, with the bottom right showcasing the solar cells with the largest diameters

By Ty Tkacik

Bioprinting uses living cells and molecular signals to produce biological tissues and even whole organs, building them layer by layer in the lab. To keep the bioink, or blend of cells and materials that power this printing, correctly aligned to grow a target tissue, researchers use electricity. However, this typically requires bulky electronic interfaces and invasive wiring. A team led by Penn State engineers has cut the cables, illuminating the first steps towards cell alignment control using miniature solar panels.

Atom-scale model could help improve material growth for advanced electronics

Sherry Sola, an intern with Penn State’s Semiconductor Training and Research Initiatives for Veterans in Engineering, or STRIVE, program, and Ian Binnie, engineering support specialist with Penn State’s Silicon Carbide Innovation Alliance

By better understanding how silicon carbide crystals grow, Penn State researchers may be able to produce a higher-quality material that also reduces need for trial-and-error experiments

By Jamie Oberdick

Penn State researchers have refined an atom-scale model of how silicon carbide changes from a solid into vapor during crystal growth, work that could help manufacturers produce higher-quality material for advanced electronics while reducing costly trial-and-error experiments.