As a result, this
group succeeded in isolating ORs which respond to three types of volatile organic compounds (2 - pentanone,
pyridine, 2 - butanone) respectively in urine samples from lung cancer patients.
P1 behavior was first investigated by STM at the liquid / solid interface: as an exemple, an arrangement of the molecules on HOPG presenting a quasi-square lattice (a = 2.1 nm, b = 2.2 nm, α = 94 °) self - assembled by hydrogen bonds between the
pyridine unit and the methyl
groups borne by the p - xylene core will be described, indicating strong intermolecular interactions between the molecules P1 leading to a supramolecular self - assembly independent of the underlying HOPG structure.