A research paper by scientists at Tianjin University proposed a magnetically steerable catheter incorporating 2 radially magnetized magnets and a thermosetting shape memory polymer.

The hidden world of quantum mechanics exists at scales many orders of magnitude smaller than living organisms, and yet scientists have long theorized that quantum effects play an important role in biology. Birds’ ability to sense magnetic fields during migration is one of the most well-known mysteries in this field, with leading theories suggesting that this sensing could be achieved by exploiting quantum entanglement. By proving the Pontryagin Maximum Principle for quantum systems, researchers have come up with a recipe to control quantum effects that may finally be able to put this avian hypothesis to the test, while also unlocking new biological platforms for quantum computing.