https://joliot.cea.fr/drf/joliot/en/Pages/news/Science/2024/CO2-reduction-catalytic-cycle-porphyrin.aspx Website of the Frédéric-Joliot Institute of Life Sciences which includes 4 departments: I2BC, DMTS, NeuroSpin and Service hospitalier Frédéric Joliot (SHFJ). The teams are mainly located at the CEA Paris-Saclay center and at the Orsay hospital. en-US https://www.cea.fr/Style%20Library/Themes/drf/instituts/images/logo-cea-joliot-2023.png https://joliot.cea.fr/drf/joliot/en https://www.cea.fr/drf/joliot/en/Pages/news/Science/2025/perylene-fission-singulet.aspx Une étude internationale menée par un laboratoire de l’I2BC montre qu’un phénomène quantique appelé fission du singulet peut se produire lorsqu’une molécule modèle est mise en solution aqueuse et qu’elle se dimérise. L’étude spectroscopique exhaustive ouvre de nouvelles voies de recherche pour le développement de systèmes photocatalytiques efficients en milieu aqueux. Photosynthesis ; Bio-inspired catalysis Researchers SB2SM Scientific result Mon, 24 Mar 2025 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2024/CO2-reduction-catalytic-cycle-porphyrin.aspx Using a range of spectroscopic techniques, researchers at I2BC in collaboration with ICMMO have elucidated the catalytic cycle of a bio-inspired iron porphyrin catalyst, which could form the basis of economically viable solutions for the conversion and recovery of CO2. Green Chemistry ; Bio-inspired catalysis Researchers SB2SM Scientific result ; Article Thu, 13 Jun 2024 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2023/Photocatalytic-CO2-reduction-for-radiolabeled-drug-synthesis.aspx Researchers from SCBM (DMTS) and SB2SM (I2BC) describe a novel and optimized approach to the total photoreduction of 13C-labelled CO2 to carbon monoxide (CO), and the immediate reuse of the latter for the synthesis of high value-added compounds. A step towards a radiochemistry of carbon isotopes potentially useful in human health. Bio-inspired catalysis ; Chemistry ; Green Chemistry ; Carbon cycle SHFJ Scientific result Wed, 22 Nov 2023 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2023/O2-photoactivation-bio-inspired-hydrocarbon-catalysis.aspx The oxidative functionalization of alkenes, hydrocarbons widely used in the chemical industry, remains a challenge. A team from I2BC used an Oxygen Atom Transfer reaction to an alkene and succeeded in capturing the intermediate species of a bio-inspired photocatalyst produced during the reaction. Bio-inspired catalysis ; Green Chemistry SB2SM Scientific result Wed, 22 Feb 2023 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2022/Photoreduction-of-CO2-by-iron-porphyrins.aspx ​Researchers from ICMMO* and ISMO**, in collaboration with a team from I2BC, show that the urea-decorated iron porphyrin catalysts they developed previously for the electro-catalysis of CO2, can be successfully employed in a photo-catalytic approach. Chemistry ; Bio-inspired catalysis ; Photosynthesis SB2SM Scientific result Thu, 16 Jun 2022 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2022/Optimization-bio-inspired-catalyst-anode.aspx Researchers from the SCBM have participated in the optimization of a bio-inspired catalyst anode developed by teams from IRIG (CEA, Grenoble). In particular, they have contributed to the fine control of the catalyst surface concentration. Bio-inspired catalysis Researchers IRIG Article ; Scientific result Fri, 04 Mar 2022 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2021/Functioning-FAP-photoenzyme-deciphered.aspx An international consortium of scientists, including an I2BC team, has just deciphered the functioning of FAP (Fatty Acid Photodecarboxylase), a key photoenzyme for the production of biofuels and other high value added molecules. This work, published in Science, was the object of a CEA press release. Green Chemistry ; Microalgae ; Biofuel Scientific result Mon, 12 Apr 2021 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2021/CO2-valorization-ChemSusChem.aspx By studying the structure-reactivity relationships of bio-inspired catalysts for CO2 reduction, researchers from I2BC (SB2SM) and ICMMO have shown that the effects of through-space electrostatic interactions surpass the through-bonds electronic effects. A further step towards obtaining a durable catalyst to reduce the atmospheric accumulation of CO2, responsible for global warming. Green Chemistry ; Bio-inspired catalysis ; Carbon cycle Scientific result Wed, 24 Mar 2021 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2020/CO2-valorization-optimization-bio-inspired-catalyst.aspx A team from I2BC (SB2SM), in collaboration with ICMMO, optimized a bio-inspired CO2 reduction catalyst, designed and developed in the laboratory, and showed that its efficiency relies on a subtle balance between CO2 fixation at the catalytic site and access to protons, which is essential for breaking the C=O bond. Bio-inspired catalysis Scientific result Tue, 10 Nov 2020 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2020/Artificial-photosynthesis-nano-polymer-mimicking-PSII.aspx Researchers from the I2BC (SB2SM), in collaboration with CNRS (LCP, ICMMO) have designed an original artificial photosynthesis approach, based on the use of semiconductor nanopolymers composed of PolyDiPhenylButadiyne, capable of reproducing the full photo-redox reaction of plant Photosystem II, that is the production of O2 by photo-oxidation of water and the reduction of a quinone. Photosynthesis ; Bio-inspired catalysis Scientific result Tue, 07 Jul 2020 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2020/C14-anti-inflammatory-drugs.aspx Researchers from the SCBM in collaboration with teams from IRAMIS, AstraZeneca and the Karolinska Institutet have developed a second marking method based on the dynamic exchange of carbon dioxide, this time without catalysis, by "simple" thermal heating. Ideal for organic molecules of therapeutic interest, the method is described in tAngewandte Chemie. Green Chemistry SCBM Scientific result isotopic exchange;radiolabeling; Mon, 04 May 2020 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2019/A-clean-efficient-photocatalysis-production-compounds-interest.aspx A team from I2BC@Saclay, in collaboration with the CNRS (ICMMO, UPSud and ISM2, Aix-Marseille University) has shown that the use of a reversible electron acceptor, able to accept and transfer an electron, in place of a sacrificial electron donor optimizes efficient and clean photocatalysis reactions for the production of organic compounds of interest. Photosynthesis ; Bio-inspired catalysis Scientific result Fri, 18 Oct 2019 10:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2019/Valorisation-carbon-dioxide-bio-inspired-approach.aspx A team of SB2SM (I2BC@Saclay), in collaboration with the universities of South-Paris and Rennes1, has developed a new, particularly effective catalyst for the reduction of carbon dioxide (CO2), directly inspired by nature. Results are published in Angewandte Chemie. Bioenergy ; Bio-inspired catalysis Scientific result Mon, 25 Feb 2019 11:00:00 GMT https://www.cea.fr/drf/joliot/en/Pages/news/Science/2018/valorisation-carbon-dioxide.aspx ​In studies published in ChemPhotoChem, I2BC@Saclay, SCBM and ICMMO researchers have developed a gentle method for photo-CO2 reduction by molecular catalysts, followed by a carbonylation reaction that immediately reuse the CO produced. This device can be used for the introduction of radioactive carbon atoms into molecules of therapeutic interest. Green Chemistry ; Photosynthesis Scientific result Thu, 06 Sep 2018 10:00:00 GMT