On 26th and 27th of October were the doctoral school days of ED397, for the first time in an online version. During this conference which gathers all PhD students from ED397, all third year students present their work in a short and vulgarized 5-minute talk and a poster. Each year, prices are awarded for the best talks and posters. This year, again, some SIMM PhD students were awarded: Sandrine Laquerbe won a poster price for her work on supramolecular hydrogels, and Victoria Waltz won a public price for her work on elastomers filled with soft particles.