IBMM Green Chem’s Post

Valentin Valtchev's Scientific Group 📜 Nanosized Zeolite P for Enhanced CO2 Adsorption Kinetics 💡 In this study, embracing the principles of green chemistry, we have developed a template-free seed-assisted method for zeolite P synthesis. Using presynthesized micronsized zeolite P2 as seeds, the seed-assisted approach yielded highly pure nanocrystalline zeolite P1 with the particle size in the range of 30–120 nm, building spherical agglomerates. 💡Presented findings suggest nanosized zeolite KP1 as a promising adsorbent for capturing and separating CO2 from power-plant flue gas and biogas, particularly under low CO2 partial pressure conditions. 🛰 https://lnkd.in/daGrHtdU #CO2adsorption #zeolites #research #science #chemistry CNRS Innovation Centre national de la recherche scientifique ENSICAEN - Ecole Nationale Supérieure d'Ingénieurs de Caen Université de Caen Normandie Laboratoire Catalyse & Spectrochimie Institut Carnot ESP

📜The dynamic catalysis of Ga/ZSM-5 catalysts for propane-CO2 coupling conversion to aromatics and syngas 💡In this work, Ga/ZSM-5 catalysts are prepared by a facile wet-impregnation method to study the dynamic evolution of the Ga species and the role of CO2 in propane and CO2 coupling to aromatics and syngas reaction. A series of techniques including XANES, FTIR, XRD, NH3-TPD, SEM, and H2-TPR are performed to identify the complex GaOx species and their evolution on the as-synthesized Ga/ZSM-5 catalysts. 🛰️https://lnkd.in/djqWiYMW CNRS ENSICAEN - Ecole Nationale Supérieure d'Ingénieurs de Caen Laboratoire Catalyse & Spectrochimie CNRS Innovation Université de Caen Normandie Institut Carnot ESP Université de Caen Normandieé Chinese Academy of Sciences Shenyang University of Chemical Technology Dalian Nationalities University Shanghai Advanced Research Institue, Chinese Academy of Science Normandie Université Elsevier #science #catalysts #research #porouscompounds #zeolites #zeolite #chemistry

🤝Meet NIMPHEA partner : ICPEES (CNRS and Unistra) The ICPEES is a joint unit between the CNRS and the Université de Strasbourg, focusing on key topics such as catalysis and materials, polymer engineering and molecular chemistry and analytics. In the frame of NIMPHEA, CNRS/Unistra will oversee the development of the core components of the next generation of MEAs, and develop adapted carbon supports (e.g., corrosion resistance, high developed surface, etc.) and active phase (e.g., platinum nanoparticles) for such aim. They will also perform an electrochemical assessment of the electrocatalysts kinetics for the HT-PEMFC anodic and cathodic reactions along with the assessment of the ionomer-H3PO4-electrocatalyst interactions. 🔎More info: https://shorturl.at/jBdYA #MEA #fuelcell #hydrogen Safran Clean Hydrogen Partnership

🔬 𝐍𝐞𝐰 𝐃𝐢𝐬𝐜𝐨𝐯𝐞𝐫𝐲: 𝐇𝐨𝐰 𝐆𝐥𝐲𝐜𝐞𝐫𝐨𝐥 𝐏𝐫𝐨𝐭𝐞𝐜𝐭𝐬 𝐂𝐞𝐥𝐥𝐬 𝐢𝐧 𝐄𝐱𝐭𝐫𝐞𝐦𝐞 𝐂𝐨𝐥𝐝 🔬 A pioneering study published in 𝘕𝘢𝘵𝘶𝘳𝘦 𝘊𝘰𝘮𝘮𝘶𝘯𝘪𝘤𝘢𝘵𝘪𝘰𝘯𝘴 reveals how glycerol prevents ice formation at ultra-low temperatures, offering new insights into #cryopreservation. Led by researchers from Stockholm University and global collaborators, the study shows that glycerol stabilizes water by disrupting its hydrogen bond network, preventing ice crystal formation and protecting cells from damage. 💧 𝐊𝐞𝐲 𝐈𝐧𝐬𝐢𝐠𝐡𝐭𝐬: ✔️ Glycerol alters water's behavior, suppressing density fluctuations. ✔️It shifts the "Widom line" to colder temperatures, further preventing ice formation. This discovery could revolutionize cryopreservation techniques in medicine, food preservation, and materials science. Read the full article to learn more about this exciting discovery and its impact on cryopreservation: https://lnkd.in/eJCnKQif #Glycerol #CellPreservation #Biotechnology #Biobank #Biobanking #WaterScience #Molecular #MedicalResearch #ColdStorage #Cryoprotection

Yu Ma will be defending her #PhD dissertation on Friday 8 November 2024. During her studies, Yu Ma focused on designing and optimising #fusionenzymes for efficient oxyfunctionalisation in non-aqueous media. Her research aimed to address the inherent challenges of Baeyer-Villiger Monooxygenases (BVMOs), whose applications are limited by #enzyme instability, product/substrate inhibition, and cofactor dependency. By engineering novel fusion enzymes combining BVMOs and alcohol dehydrogenase, she explored how linker design and enzyme orientation affect catalytic efficiency in linear cascade reactions. Her work not only enhanced enzyme stability and activity but also expanded the use of these fusion enzymes in biphasic systems and deep eutectic solvents. Her findings demonstrate the potential of fusion enzymes to improve oxyfunctionalisation reactions, providing valuable insights for enzyme-driven industrial processes in non-aqueous media. The PhD study was completed at Department of Biological and Chemical Engineering (BCE), Faculty of Technical Sciences - Aarhus University. ▶ Time: Friday, 8 November 2024 from 14:00 ▶ Place: Building 3130, room 303, Gustav Wieds Vej 10C, 8000 Aarhus ▶ Title of PhD thesis: Design of Enzymatic Oxyfunctionalizations Catalyzed by Fusion Enzymes in Non-aqueous Media Yu Ma’s main supervisor is Professor Selin Kara. Lars Ottosen, Thomas Lundgaard, Aarhus University #chemicalengineering #biotechnology #phdlife #dissertation #phds

Joachim Slaets will defend his PhD today at 14:00. The dry reforming of methane (DRM) is a process that utilizes carbon dioxide (CO2) and methane (CH4) to produce a mixture of carbon monoxide (CO) and hydrogen (H2), which can be used to further synthesize of a variety of chemicals and fuels. A highly reactive plasma environment can be used to break down these molecules. By leveraging such processes, CO2 can be transformed into useful chemicals, contributing to both emission reduction and resource circularity. His thesis studies the reaction mechanism of DRM through chemical kinetics modelling to gain a better understanding of the effects of different plasma conditions. Evaluating the influence of different parameters on the core kinetics in warm plasmas as well as the post-plasma reactions, while considering different gas compositions, such as CO2 and CH4 ratio and the influence of N2 in the mixture. The findings presented improve the understanding of plasma-based DRM technology, providing a basis for further studies and process optimization.

We are thrilled to share insights from the latest study, being part of the doctoral thesis of Magdalena Medykowska (Doctoral School of Quantitative and Natural Sciences, Uniwersytet Marii Curie-Skłodowskiej w Lublinie), on advancing water purification through carbon–silica composites. Metal-free (C/SiO₂) and metal-doped composites (iron-doped C/Fe/SiO₂ and manganese-doped C/Mn/SiO₂) were evaluated for their effectiveness in capturing complex pollutants often found in wastewater - specifically heavy metals like Pb(II) and Zn(II) and organic compounds such as pharmaceuticals (DCF) and polymers (PAA). Congratulations to Katarzyna Szewczuk-Karpisz, the co-author of the publication! 👏 🧪 By examining systems with both organic and inorganic contaminants, C/Mn/SiO₂+Pb(II)+PAA was identified as the optimal composite, achieving an impressive lead adsorption of up to 476 mg/g. This system also formed large, easily removable aggregates and showed over 80% regeneration with HCl. This approach addresses the simultaneous removal and easy separation of pollutants and adsorbents from aqueous solutions, a critical challenge in real wastewater treatment. 🧪 Through the integrated assessment of adsorption capacity, regeneration efficiency, and aggregation properties, a powerful framework for designing more effective, sustainable water treatment solutions was developed. Therefore, the presented way for assessing the suitability of a given adsorbent, taking into account its sorption, regenerative, and aggregation/stability properties, is a very helpful tool in planning more effective procedures for the simultaneous removal of many substances from their multicomponent solutions. 📖 Read the full article here: https://lnkd.in/dAxhvkEm 📌 Stay with us for more updates! Instytut Agrofizyki PAN / Institute of Agrophysics, PAS #WaterPurification #SustainableSolutions #WastewaterTreatment #Adsorption

📢 New results from a fruitful collaboration in IBMM Balard. 📢 The teams Nucleosides & Phosphorylated Effectors and IBMM Green Chem have joined mechanical and chemical forces to develop more eco-friendly synthetic methods to make dinucleoside polyphosphates and analogues, in a project led by Béatrice Roy and Xavier Bantreil, with Suzanne Peyrottes and Frédéric Lamaty. Access to high value-added dinucleoside 5’,5’-polyphosphates (NpnNs) is a challenge that was overcome thanks to mechanochemistry ⚒ . A straightforward solid-state synthesis based on activation of phosphate or pyrophosphate sodium salts to their diimidazolides, followed by coupling with commercially available nucleotides, under air conditions, gave symmetrical NpnNs. The scope ranged from Np3Ns to highly challenging Np6Ns. The methodology has also been implemented using medronic acid and imidodiphosphate to obtain NpnNs analogues, some of which are unprecedented.   Congratulations to mechanochemists 👨🔬 Valentin Navarro and Florian Vasco 👏 👏 👏 for this excellent work.    Link to the article in OA (Wiley): https://lnkd.in/dDpPMXzT  CNRS - Centre national de la recherche scientifique Université de Montpellier Ecole Nationale Supérieure de Chimie de Montpellier Pôle Chimie IBMM Balard Carnot Chimie Balard CIRIMAT Wiley #greenchemistry #mechanochemistry  #pharmaindustry

👉 Kicking off the 12th #World #Biomaterials #Congress in #Daegu 🇰🇷🤩 ➡️ Looking forward to a great week of science, learning experiences and networking with colleagues and peers from all over the world 🌎 on #biomaterials #science #research! #WBC #WBC2024 #Biomaterials

My PhD thesis has been finally submitted! 💫 It is entitled "Imaging and Analytical Tools to Study the Spatiotemporal Dynamics of Protein Export" It will now be available for public review during 20 days, until the defense. Have a look at the following link 👇, and feel free to provide feedback! The key points are: - Addressed key challenges in intracellular trafficking, specifically protein secretion, using advanced fluorescence microscopy techniques (Single particle tracking and STED microscopy) - Quantified fluorescence images to objectively evaluate results in four different projects addressing protein secretion and intracellular trafficking. - Proposed control experiments and parameter descriptors to maximize data quality in Single Particle Tracking. We emphasized labeling strategies, imaging, and data analysis considerations for reliable results. - Applied these methodologies to study protein sorting at the TGN, examining the role of ER-Golgi membrane contact sites (MCS) in TGN-derived carrier biogenesis. Using super-resolution fluorescence microscopy, we identified cargo accumulation regions and conducted SPT experiments, revealing confined, slow motion of cargo proteins near MCS.