Tiny tentacled particles could camouflage implants from immune rejection

Our immune system is a powerful ally to keep us safe, but there are times when it gets a little carried away and attacks things that are trying to help us. Now, researchers have developed particles called dendrimers that are covered in tiny tentacles, arranged in patterns too small for the immune system to detect. These could be handy for delivering drugs or camouflaging implants to prevent rejection.