Cell Size Determined by Gravity - New Technology Leads to Discovery

The typical animal cell measures about 10 microns, or 0.001 centimeters, in diameter. Which is unsurprising—cells are small! that's sort of the point!—and, at the same time, curious. Animals exhibit nothing if not biodiversity, yet the building blocks we all share are, with very few exceptions, astoundingly similar in size.

http://www.theatlantic.com/technology/archive/2013/10/q-why-do-animal-cells-stay-so-small-a-gravity/280912/

North Carolina University 3D Prints Medical Implants

Researchers from North Carolina State University, the University of North Carolina at Chapel Hill and Laser Zentrum Hannover have discovered that a naturally-occurring compound can be incorporated into three-dimensional (3-D) printing processes to create medical implants out of non-toxic polymers. The compound is riboflavin, which is better known as vitamin B2.

http://news.ncsu.edu/releases/wms-narayan-riboflavin/