Submarines now have soft, robotic arms

The human arm can perform a wide range of extremely delicate and coordinated movements. The robotic ‘arms’ on underwater research submarines, however, lack the finesse to reach and interact with soft-bodied sea creatures. A new system lets biologists intuitively control a modular, highly flexible soft robotic arm by wearing a glove equipped with wireless soft sensors. This system also could one day enable the creation of submarine-based research labs.

Immune system’s balancing act keeps bowel disease in check

The study showed that the increased presence of a protein responsible for sensing infection — called NLRP1 — meant there were fewer good bacteria and anti-inflammatory molecules in the gut, leading to higher levels of inflammation and an increased risk of IBD.