After vocal cord surgery, many patients develop stiff vocal folds that impact their ability to speak. Hydrogels can help prevent this by promoting healing, but delivering hydrogels to the vocal cords is difficult. Publishing October 29 in the Cell Press journal Device, a team of biomechanical engineers and surgeons have developed a 3D-printing soft robot that can accurately deliver hydrogels to the vocal cord surgical site to reconstruct tissues removed during surgery. The robot’s printhead is only 2.7 mm in size—the smallest bioprinter reported to date.  

States that explicitly criminalize prenatal drug use may unintentionally discourage pregnant people from seeking essential medical care, according to new research from Columbia University Mailman School of Public Health. The study is the first to empirically test whether fear of legal repercussions leads some people with drug use disorders to give birth outside healthcare settings to avoid hospital drug testing.

In a new study, researchers analyzed access to emergency departments (EDs) with high levels of pediatric readiness in the United States, examining not only changes in overall access but also how the changes varied by state and region. They found that pediatric access to high-readiness EDs declined modestly between 2013 and 2021, though some areas improved.

A team of researchers at Penn State College of Medicine and the Allen Institute for Brain Science has produced 3D growth charts with resolution high enough to differentiate between cell types in the developing mouse brain during the early postnatal period, a time of tremendous brain growth and development. This tool will help researchers better understand the nuances of healthy brain development and neurodevelopmental disorders in mouse models of human health and disease, the team said.