Cellulose nanocrystals

When it comes to plant-based materials, many people may picture something that's "green" but not very robust. Such is not the case with a new MIT-designed composite, however, which is claimed to be as hard as aluminum and as tough as bone.

Although superglues can be quite useful, they're typically made from harsh chemicals, plus it's very difficult to "unstick" them once they've set. Now, however, scientists have created a plant-based superglue that can easily be removed when needed.