Science Snapshots: March 15, 2026

Test disfavours acrylonitrile cells in Titan lakes

Computer models have suggested that acrylonitrile, an organic compound present on Saturn’s moon Titan, can self-assemble into cell-like structures. When scientists mixed it with liquid methane and ethane in cryogenic conditions like those on Titan, and observed no signs of membrane formation. Instead, acrylonitrile interacted with ethane to form a stable cocrystal, suggesting acrylonitrile-based cell membranes are unlikely to exist in Titan’s lakes. This is the first experimental evidence contradicting previous assembly theories.

New ‘ecological’ ways to vaccinate bats

Researchers have developed a vaccination strategy to stop viruses from jumping from bats to humans. Vaccinating wild bats is traditionally difficult. So first, first, they used irradiated mosquitoes as vaccine carriers. Bats developed immunity to rabies and Nipah viruses after eating the mosquitoes or receiving bites. Second, the team built traps that exploited the bats’ natural craving for salt, leading them to drinking vaccine-laced water. Both methods successfully protected bats in laboratory and simulated field tests.

Source of ripening bananas’ unique scent found

Why do ripening bananas produce such a unique aroma? Scientists found that in ripening banana pulp, two enzymes, AHAS and IPMS, undergo alternative splicing: a process that creates shorter versions of the enzymes lacking their usual regulatory parts, including their ‘off’ switches. Without them, the enzymes keep producing the chemical precursors of the fruit’s signature scent. The process’ need for two enzymes to change together is why the banana aroma is so rare in nature.