F. Pinaud, N. Sojic, V. Ravaine

L'Actualité Chimique, 2014, 390.

In the present work, redox thermoresponsive microgels bearing ruthenium complex were synthesized. Investigation of electrogenerated chemiluminescent properties shows an unexpected amplification up to two orders of magnitude at the volume phase transition. The origin of this phenomenon is explained by the decrease in the average distance between adjacent ruthenium complexes at the swell-collapse transition, which favors the annihilation process in the microgels. This general principle offers the opportunity to develop a new range of electrogenerated chemiluminescent biosensors based microgels.