Morning everyone, Friday can only mean one thing.

First up is a pretty clever idea: a supramolecular capsule with pores that can open and close. Some pretty obvious advantages for controlled release.

Next to be covered is a paper from Science that you might have seen highlighted elsewhere: a nifty spectroscopic technique where they vibrationally excite a molecule before studying its rotational spectrum. It's so fast you can look at both isomers of a molecule - and all the states in between.

And finally, a polymer whose phase transition involves such a large change in length that a fibre is able to make an object 250 times its weight move on uphill. The object is a US dime, so there are potential uses in piggy banks across the world!

I hope you enjoy this week's batch - time for me to edit next week's...

Neil

Neil Withers (Associate Editor, Nature Chemistry)