A new protocol combines gold nanoparticles with an enzyme substrate to give a simple test for the activity of an enzyme, the results of which can be seen with the naked eye.

Chemically reduced graphene oxide is a good substrate for high enzyme loads, with activities comparable with those found in solution.

Making exactly the noble metal nanostructure you want is now much simpler, thanks to a microfluidic array developed by US and Chinese researchers.

A simple way to identify the number of graphene sheets on a substrate, even over a large area, is shown by US researchers.

The possibility to obtain work from nanomachines is a step closer to reality as scientists provide a quantitative framework describing interfacial interactions in a nanobiomolecular system.

Small changes can have a big effect; a very small change in molecular structure can have a profound controlling effect on the size of gold nanoparticle superstructures.

Scientists at University of California, San Diego, USA, led by Joseph Wang, have put together a multisegment nanomotor that contains components responsive to magnetic and to chemical stimuli.