Article
Polymer Science
Edith Perret, Rudolf Hufenus
Summary: This article provides an overview of strain-induced solid mesophases in polymer fibers, analyzing the structural information within fibers and discussing the possible phase variations. Through fitting algorithms and WAXD pattern analysis, the study suggests the ubiquitous presence of mesophases in various types of fibers.
Article
Chemistry, Physical
Mengting Jin, Mingxiu Liu, Petr Nachtigall, Lukas Grajciar, Christopher James Heard
Summary: Controlled desilication of zeolites is an effective method to increase their application potential by modifying the Si/Al ratio and improving diffusion restrictions in industrial processes. However, the mechanism of alkaline hydrolysis in zeolites is still not well understood, with collective effects playing a decisive role in the reaction mechanism.
CHEMISTRY OF MATERIALS
(2021)
Article
Agricultural Engineering
Yanbo Ma, Yuyong Hou, Weijie Wang, Meijie Cui, Zhile Guo, Tong Han, Zhiyong Liu, Nahui Hao, Fangjian Chen, Lei Zhao
Summary: Mixotrophic microalgae cultivation can increase biomass, but the utilization mechanism of inorganic carbon (IC) and organic carbon (OC) is unknown. This study characterized the consumption of IC and OC, chlorophyll fluorescence parameters, intracellular NADPH content, and transcriptional changes in related genes. The results showed that IC was preferentially utilized, with 76% consumed within 8 hours. Subsequently, OC became the dominant carbon resource. The addition of bicarbonate enhanced photosynthesis and OC assimilation. These findings provide insights into carbon utilization under mixotrophic conditions and clues for promoting microalgae growth.
BIORESOURCE TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
De-Xuan Liu, Kai-Ping Xie, Wei-Xiong Zhang, Ming-Hua Zeng, Xiao-Ming Chen
Summary: A study presented four new 3D SCN--bridged molecular double perovskites, with frameworks exhibiting a high structural distortion and relatively strong structural rigidity.
Article
Chemistry, Physical
Debashis Majhi, Jing Dai, Sergey Dvinskikh
Summary: This study investigates the hydrogen-bonding interaction in imidazolium-based mesogenic ionic liquids in different phases using solid-state nuclear magnetic resonance (NMR). The results show that the more basic anions form stronger hydrogen bonds in the smectic phase. The strength of the hydrogen bonds slightly decreases in the mesophase compared to the isotropic phase. Additionally, the cation structural modification does not significantly affect the hydrogen bond strength as long as the aprotic nature of the material is preserved.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Qijun Fu, Sheng Wang, Ting Wang, Defeng Xing, Xu Yue, Mingzhe Wang, Shudong Wang
Summary: By comparing the performance and reaction mechanisms of Pt/CZ11 and Pt/Al2O3 catalysts, it was found that Pt/CZ11 exhibited higher activity and combustion efficiency, which could be attributed to the strong interaction between Pt and Ce-Zr solid solution and the enrichment of surface active oxygen and oxygen vacancy.
JOURNAL OF CATALYSIS
(2022)
Article
Materials Science, Multidisciplinary
H. Lebbad, B. Appolaire, Y. Le Bouar, A. Finel
Summary: This study investigates the growth of Widmanstatten structures in metallic alloys using phase field calculations, showing that elastic energy anisotropy associated with shear dominated transformations alone can lead to the growth of plate or needle-like precipitates at constant supersaturations. The Ivantsov analytical solutions continue to provide accurate estimates of diffusion flux even when elasticity is taken into account. The findings suggest that the tip shape and size of acicular precipitates are determined by elastic forces rather than being dynamically determined, with the tip size rationalized by the elastic kernel value in the lengthening direction.
Article
Chemistry, Multidisciplinary
Mikalai A. Artsiusheuski, Rene Verel, Jeroen A. van Bokhoven, Vitaly L. Sushkevich
Summary: Copper(II)-containing mordenite can activate C-H bonds in C1-C3 alkanes, and the functionalization of ethane and propane shows remarkable differences compared to methane. Ethane and propane react with CuMOR to form ethylene and propylene, while methane predominantly yields methanol and dimethyl ether. The reaction mechanisms differ significantly for each alkane, with the oxidative dehydrogenation being the primary pathway for ethane and propane, and oxidative hydroxylation for methane.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yukihiro Murata, Cihan Ozen, Satoshi Maeda, Takanori Fukushima, Yoshiaki Shoji
Summary: A three-coordinate chloroborane molecule with a borane-olefin proximity effect undergoes a skeletal rearrangement upon chloride abstraction, resulting in the formation of a three-dimensional macrocyclic molecule featuring a borocenium structure.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Gerrit Schaper, Marco Wenzel, Uwe Schwarzenbolz, Johannes Steup, Felix Hennersdorf, Thomas Henle, Leonard F. Lindoy, Jan J. Weigand
Summary: The reaction between compound 1 and uranyl acetate leads to the formation of compound 2, and the transformation process was followed by NMR and UV/Vis spectroscopy. O-18 isotope was successfully introduced into the mu(3)-bridge.
CHEMICAL COMMUNICATIONS
(2022)
Article
Agricultural Engineering
Chen Fang, Xiangru Yuan, Keke Liao, Huiwen Qu, Lujia Han, Xueqin He, Guangqun Huang
Summary: This study found that micro-aerobic conditions during composting can improve the quality of compost products. Compared to static composting, micro-aerobic composting degrades lignocellulose at a slower rate but increases the content of dissolved organic carbon. It also affects the degradation of carboxyl carbon and alcohol/ether, and promotes the emissions of carbon dioxide and methane. Additionally, micro-aerobic composting reduces the relative abundances of pathogenic and dung saprotrophic fungi while increasing the relative abundance of soil saprotrophs.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Hugang Li, Maojiong Cao, Jamison Watson, Yuanhui Zhang, Zhidan Liu
Summary: The study demonstrated that Cu- cysteine complexes and Cu2S were the main components of Cu in wastewater algae, while CuS was the predominant form in 220°C-hydrochar. Model compound experiments showed that Cu- cysteine could be converted into CuS, while Cu2S was stable during hydrothermal liquefaction. The positive Gibbs free energy indicated that the oxidation from Cu+ to Cu2+ cannot occur spontaneously. Cyclic voltammograms showed that hydrochar facilitated the oxidation of Cu2S due to its higher capability of electron acceptance.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Xiao-Wen Gu, Jia-Xin Wang, Enyu Wu, Hui Wu, Wei Zhou, Guodong Qian, Banglin Chen, Bin Li
Summary: This study introduces Lewis basic sites into a C2H6-selective MOF for efficient purification of C2H4 from ternary mixtures, demonstrating high C2H2 and C2H6 uptakes and selectivities. The amino-functionalized UiO-67-(NH2)(2) shows exceptional performance by providing suitable pore confinement and functional surfaces decorated with amino groups for stronger interactions with C2H2 and C2H6. Breakthrough experiments with C2H2/C2H6/C2H4 mixtures under dry and wet conditions confirm the remarkable C2H4 productivity of UiO-67-(NH2)(2).
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Biochemistry & Molecular Biology
Darya A. Kashatnikova, Maryam B. Khadzhieva, Dmitry S. Kolobkov, Olesya B. Belopolskaya, Tamara Smelaya, Alesya S. Gracheva, Ekaterina Kalinina, Sergey S. Larin, Artem N. Kuzovlev, Lyubov E. Salnikova
Summary: Pneumonia is a serious infectious disease that can be influenced by various factors. This study used both theoretical and experimental methods to understand pneumonia and its comorbidities, and also assessed the host immune response. The findings suggest that measuring TREC/KREC levels can potentially be used as a prognostic test for pneumonia patients.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Phil Opitz, Laura Besch, Martin Panthoefer, Anke Kabelitz, Ronald E. Unger, Franziska Emmerling, Mihail Mondeshki, Wolfgang Tremel
Summary: This study reports a protein-free formation of bone-like apatite from amorphous precursors through ball-milling. Mg2+ ions are crucial to achieve complete amorphization of CaCO3, promoting cell growth through stimulating cell viability ex vivo.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Charlie Greboval, Audrey Chu, Debora Vale Magalhaes, Julien Ramade, Junling Qu, Prachi Rastogi, Adrien Khalili, Sang-Soo Chee, Herve Aubin, Gregory Vincent, Sara Bals, Christophe Delerue, Emmanuel Lhuillier
Summary: This paper discusses how field-effect transistors (FETs) can be compatible with low-temperature detection and proposes two key developments. By gating nanocrystal films from SrTiO3 and compatibility with a plasmonic resonator, high gate capacitance and broadband absorption are achieved.
Review
Chemistry, Multidisciplinary
Wiebke Albrecht, Sandra Van Aert, Sara Bals
Summary: The three-dimensional morphology and composition play a crucial role in governing the properties of nanopartides. In situ transmission electron microscopy is a promising tool for studying NP transformations under relevant conditions. By using specialized techniques like tomographic methods or atom counting, along with in situ holders, diffusion processes on a single nanoparticle level can be quantified. This provides valuable insights into the changes in plasmonic and catalytic properties of metal NPs in response to external stimuli.
ACCOUNTS OF CHEMICAL RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Maciej Baginski, Adrian Pedrazo-Tardajos, Thomas Altantzis, Martyna Tupikowska, Andreas Vetter, Ewelina Tomczyk, Radius N. S. Suryadharma, Mateusz Pawlak, Aneta Andruszkiewicz, Ewa Gorecka, Damian Pociecha, Carsten Rockstuhl, Sara Bals, Wiktor Lewandowski
Summary: This study presents proof-of-principle experiments decoding the crystallization of reconfigurable assemblies of nanoparticles in solid state. By utilizing XRD, TEM, and other techniques, the study explores the dependence and correlation in the process of crystallization of nanoparticles, providing insightful information on the anisotropic and reversibly reconfigurable assemblies of NPs.
Article
Biochemistry & Molecular Biology
Kevin Nys, Paul Georg Furtmueller, Christian Obinger, Sabine Van Doorslaer, Vera Pfanzagl
Summary: This study investigates the formation of tyrosine radicals in B-type dye-decolorizing peroxidase (KpDyP) and identifies the unique interaction between Y247 and Y92 specific to enterobacterial species. This provides evidence for the existence of long-range electron transfer pathways in B-type DyPs.
Article
Physics, Atomic, Molecular & Chemical
Ilenia Serra, Ines Garcia Rubio, Sabine Van Doorslaer
Summary: This study systematically investigates the impact of various factors on the EPR spectrum of myoglobin, focusing on the use of high-pH buffers to induce alkaline transition. The findings show that specific pairs of buffers and cryoprotectants can significantly alter the sample's pH, with ethylene glycol being more effective than glycerol as a cryoprotectant. Additionally, the effect of experimental factors is enhanced at cryogenic temperatures, highlighting the importance of careful selection in EPR studies of metalloproteins.
APPLIED MAGNETIC RESONANCE
(2022)
Article
Construction & Building Technology
Georgios Pipintakos, Hilde Soenen, H. Y. Vincent Ching, Christophe Vande Velde, Sabine Van Doorslaer, Filip Lemiere, Aikaterini Varveri, Wim Van den Bergh
Summary: This study focused on identifying the intermediate and final oxygenated products of binders from different crude sources after short- and long-term laboratory ageing. Analyzing the results from FTIR, EPR, H-1 NMR, and TOF-SIMS, it was found that the increase of sulfoxide and carbonyl functional groups, as well as organic carbon-centered radicals, were related to the ageing process and binder characteristics.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Chemistry, Inorganic & Nuclear
Szilvia Bunda, Nora May, Dora Bonczidai-Kelemen, Antal Udvardy, H. Y. Vincent Ching, Kevin Nys, Mohammad Samanipour, Sabine Van Doorslaer, Ferenc Joo, Norbert Lihi
Summary: Copper(II) complexes formed with sulfonated salan ligands exhibit excellent binding ability and stability, especially when introducing a cyclohexyl moiety. The complexes also show moderate catalytic activity in the Henry reaction, with the best yield achieved by complexes of PrHSS and BuHSS. Despite lower metal binding ability compared to cyclohexyl counterparts, these complexes possess larger spin density on the nitrogen nuclei, affecting their catalytic activity.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Tim Van Everbroeck, Jianxiong Wu, Daniel Arenas-Esteban, Radu-George Ciocarlan, Myrjam Mertens, Sara Bals, Christophe Dujardin, Pascal Granger, Elena M. Seftel, Pegie Cool
Summary: This research presents a novel approach for developing noble metal-free three-way catalysts using ZnAl layered double hydroxide (LDH) co-precipitated with Mn and Ti. The addition of Cu during the co-precipitation step and a post-synthesis method using the LDH memory effect were explored. The results showed that smaller CuO particle size resulted in better performance for oxidation reactions. The addition of Mn had a positive effect on the general performance of the catalysts, while the presence of Ti mainly improved the NO conversion. The developed materials showed good stability in consecutive catalytic testing cycles and even showed some NO conversion under stoichiometric conditions.
APPLIED CLAY SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Yu Zhang, Shaowei Qin, Nathalie Claes, Waldemar Schilling, Prakash Kumar Sahoo, H. Y. Vincent Ching, Aleksander Jaworski, Filip Lemiere, Adam Slabon, Sabine Van Doorslaer, Sara Bals, Shoubhik Das
Summary: In this study, a metal-free heterogeneous photocatalyst was developed for the direct hydroxylation of tertiary benzylic C(sp(3))-H bonds using oxygen as the key reagent. The gram-scale reaction was achieved with high product yield using direct solar energy. The high stability of the catalyst was proven through catalyst recycling and spectroscopic analyses, and a possible mechanism was proposed based on experimental evidence.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Correction
Electrochemistry
Sander Neukermans, Mohammad Samanipour, H. Y. Vincent Ching, Jonas Hereijgers, Sabine Van Doorslaer, Annick Hubin, Tom Breugelmans
Article
Chemistry, Analytical
Liselotte Neven, Hanan Barich, H. Y. Vincent Ching, Shahid U. Khan, Christopher Colomier, Hemantbhai H. Patel, Sergiu M. Gorun, Sammy Verbruggen, Sabine Van Doorslaer, Karolien De Wael
Summary: Electron-withdrawing perfluoroalkyl peripheral groups grafted on phthalocyanine macrocycles improve their properties for catalytic applications, with a high degree of fluorination enhancing reducibility and potentially altering singlet oxygen photoproduction. The use of a specific solvent mixture was found to dissolve perfluorinated complexes and minimize aggregation, while solid-state studies showed potential for developing efficient sensors based on these complexes. The most efficient generator of singlet oxygen was determined to be F52PcZn, highlighting the importance of the value of n and structural features in their applications.
ANALYTICAL CHEMISTRY
(2022)
Review
Chemistry, Physical
Diana Gilea, Radu G. Ciocarlan, Elena M. Seftel, Pegie Cool, Gabriela Carja
Summary: Artificially designed heterostructures formed by close conjunctions of plasmonic metal nanoparticles and non-plasmonic lamellar nanostructures are of great interest. These heterostructures exhibit localized surface plasmon resonance in the specific environment of the light-absorbing matrix, impacting their potential in plasmon-enhanced catalysis. Layered double hydroxides, with their unique 2D-layered structure and advantages in optical absorption, preparation ease, composition diversity, and high surface area, have emerged as promising candidates for versatile and robust catalysts.
Article
Biochemistry & Molecular Biology
Daniel Schmidt, Nikolaus Falb, Ilenia Serra, Marzia Bellei, Vera Pfanzagl, Stefan Hofbauer, Sabine Van Doorslaer, Gianantonio Battistuzzi, Paul G. Furtmuller, Christian Obinger
Article
Chemistry, Inorganic & Nuclear
Roberta Sgammato, Niels Van Brempt, Roy Aerts, Sabine Van Doorslaer, Sylvia Dewilde, Wouter Herrebout, Christian Johannessen
Summary: Protoglobin from Methanosarcina acetivorans (MaPgb) is a dimeric globin belonging to the same lineage as globin-coupled sensors. It has a putative role in scavenging reactive nitrogen and oxygen species. Through various spectroscopic techniques, the unusual reaction of ferric MaPgb with nitrite was revealed. Unlike other globins, nitrite did not induce the formation of a nitriglobin form in MaPgb. Instead, it led to the formation of a stable nitric-oxide ligated ferric form of the protein (MaPgb-NO) in mildly acidic pH. The changes in the optical and vibrational properties of MaPgb upon nitric-oxide ligation provide insights into its gas-binding mechanism.
DALTON TRANSACTIONS
(2023)
Article
Biochemistry & Molecular Biology
Mitra De Geest, Bart Michielsen, Radu-G. Ciocarlan, Pegie Cool, Elena M. Seftel
Summary: This study focuses on the removal of chromium using structured calcined layered double hydroxide (LDH) (MgAl)-bentonite composites through adsorption and ion exchange. The powders were structured into granulates to overcome the limitations of working with powders in real-life applications, and the regeneration of the composites was optimized for multi-cycling operation. The optimized LDH/bentonite ratio showed excellent performance for the removal of Cr3+ and Cr6+ species, and the desorption process was optimized using a 2 M NaCl solution without pH modification.
