Institut de Chimie des Milieux et des Matériaux de Poitiers

Linking geothermal reservoir and lithium distribution: A handheld spectroscopy approach on deep wells in the Upper Rhine Graben

The Upper Rhine Graben (URG) hosts a deep geothermal system characterized by fluid circulation within fractured reservoirs at the sedimentary-basement interface. This study investigates cuttings from two deep geothermal wells in the Strasbourg area to assess how reservoir heterog...

Marine arsenate evolution during Proterozoic oxygenation events and implications for biological phosphate metabolism

Abstract Earth’s atmosphere and oceans experienced two major episodes of ocean-atmosphere oxygenation that transformed the planet and shaped the evolution of the oxygen-rich biosphere between 2.45 and 0.541 billion years ago (Ga). These changes increased the abundance of oxidized...

Hydrogel-based strategies for the controlled delivery of analgesic and anti-inflammatory drugs

Abstract In clinical practice, drug encapsulation is an important strategy for enhancing therapeutic efficacy and reducing adverse effects. This review critically examines how polymer origin, crosslinking strategy, swelling behavior, degradation rate, and three-dimensional networ...

Catalytic non-energetic formation of diverse peptides on cosmic dust under extraterrestrial conditions

Abstract This study experimentally examines a non-energetic pathway for peptide formation under realistic space conditions. Unlike radiation-driven processes, this mechanism involves low- or zero-barrier reactions at cryogenic temperatures. This provides a less stochastic chemica...

Straightforward Assessment of Structural Disorder in Ti3C2T x MXene Using Raman Spectroscopy: Implications for Defect Engineering

Abstract MXenes, a large family of two-dimensional transition-metal carbides and nitrides, have attracted considerable interest owing to their unique physicochemical properties. Structural defects play a key role in tuning these properties, yet their characterization remains high...