Synthesis of helical ladder polymers

Researchers at Kanazawa University synthesized helical ladder polymers with a well-defined cyclic repeating unit and one-handed helical geometry, as they reported in the Journal of the American Chemical Society.

Keep your distance: Why cells and organelles don't get stuck

Biomembranes enclose biological cells like a skin. They also surround organelles that carry out important functions in metabolism and cell division. Scientists have long known in principle how biomembranes are built up, and ...

Successful T cell engineering with gene scissors

The idea of genetically modifying a patient's own immune cells and deploying them against infections and tumors has been around since the 1980s. But to this day modified T cells are still not as effective as natural T cells ...

Resolving tension on the surface of polymer mixes

Better than playing with Legos, throwing polymer chains of different lengths into a mix can yield surprising results. In a new study published in EPJ E, physicists focus on how a mixture of chemically identical chains into ...

Impurities enhance polymer LED efficiencies

Molecular dynamics simulations have shown that the mysteriously high efficiency of polymer LEDs arises from interactions between triplet excitons in their polymer chains, and unpaired electrons in their molecular impurities.

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