3D printed nanostructures (IMAGE) Optica Caption The researchers used their new system to make a variety of detailed 3D structures, including a 3D woodpile structure (a & b), a 20-micron-diameter buckyball (c) and two cubical box frames (d). The images were acquired with an electron microscope. Credit Cuifang Kuang, Zhejiang University Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.