From bubbling plants to endangered whales, here are some amazing images from The Scientist in 2019.

A microneedle patch can subcutaneously deliver a contraceptive hormone to rats.

A stick-on patch enables sampling of immune cells in the skin.

A long-acting contraceptive patch with microscopic needles releases a drug slowly over time.

Researchers are developing potent ways to fuel and control the movement of micromotor devices.

An adhesive inspired by a parasitic worm could help better affix skin grafts in burn patients.

Biomimicry yields a new type of patch that may help wounds heal faster.