11 vidéosSéminaires 2021
Ce cycle de 12 séminaires sur "Les enjeux de la bioéconomie" a été organisé par Agreenium et AgroParistech, sous le patronage de la Commission nationale française pour l'UNESCO.
16 vidéosChallenges and opportunities in materials for green energy production and conversion
The production of green and renewable energy plays a key role in all future energy scenarios towards the zero-emission transition that has to be tackled in the next 30 years. The rapid inter-conversion of electricity into chemical energy offers an important avenue for the use of renewable energy to replace fossil fuels. The generation of electricity in fuel cells from the electrochemical reaction of H2 and O2, coupled with the photoelectrochemical water splitting to produce oxygen and hydrogen gases and the valorization of CO2 through its conversion into solar fuels are also strongly related with the concepts of circular economy. Hence, the study of materials able to efficiently harvest and transform solar energy is highly necessary. Moreover, due to the intermittent character of the solar energy, adequate energy storage and conversion st
16 vidéosInnate immunity in a biomineralized context: trade-offs or synergies?
Biomineralized structures can function as a barrier to the external environment, and as such are conceptually entwined with innate immune processes. Disentangling immune and biomineralization mechanisms represents a significant challenge for researchers trying to understand how organisms could integrate biomineral formation and plasticity with maintenance of critical innate immune protection. In fact, there is increasing evidence that immune proteins can serve genuine dual-functional roles, both in regulation of biomineralization, as well as resisting pathogens. This awareness is growing in models as diverse as the dual-functionning haemocytes of marine bivalves, and in mineralization / demineralization of the avian eggshell. Moreover, reef corals, in which calcification is coupled to the photosynthetic activity of their mutualistic symb