The French laboratory CEA Saclay has adapted the nuclear magnetic resonance (EMN) technique for the analysis of molecules in nanoliter volumes. This means that molecules can be analyzed within the cell. This technique involves introducing the molecules into a magnetic field and sending them radiofrequency pulses, which allows knowing which molecules are depending on the response of the nuclei of the atoms. However, in a very small size, it is very difficult to detect the response. French researchers have solved the problem by means of a rotating coil that has allowed detecting the atoms of nanoliter samples.