A team of Brigham and Women’s Hospital researchers have developed a way to bioprint tubular structures that better mimic native vessels and ducts in the body. The 3-D bioprinting technique allows fine-tuning of the printed tissues’ properties, such as number of layers and ability to transport nutrients. These more complex tissues offer potentially viable replacements for damaged tissue. The team describes its new approach and results in a paper published on Aug. 23 in Advanced Materials.