There is usually a long time lag between lab results and commercialization. Sometimes it can be over 50 years. Graphene and its applications are on schedule.

The first wow articles about the promise of lithium batteries to electrify the world started hitting in the 80s.

> A versatile “Paint & Scribe” methodology is introduced, enabling to integrate LIG tracks onto any wettable surface, and in particular onto printed and flexible electronics. A process for obtaining freestanding and transferrable LIG is demonstrated by dissolving acrylic paint in acetone and floating LIG in water. This advancement offers novel avenues for diverse applications that necessitate a transfer process of LIG.

I still don't understand why that's only possible with commercial inks and dyes but not with also aromatic fruit peels?