Glucose-responsive insulin that eliminates the need for people with type 1 diabetes to check their blood sugar levels could be a step closer thanks to new research.

Molecular engineers triggered a domino-like structural transition in an organic semiconductor. The energy- and time-saving phenomenon may enhance the performance of smartwatches, solar cells, and other organic electronics.

A tiny protein binder fuses to a nanopore in the membrane of a cell, which allows ionic solution to flow through it. When the sensor recognizes a targeted molecule, the ionic flow changes. This change in flow serves as the signal from the sensor that the biomarker has been found.