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Macroporosity-Heightened Mass Transfer Enabling Complete Benzene Oxidation over Pt/SiO Catalyst.
Langmuir
January 2025
Department of Engineering Science, University of Oxford, Oxford OX1 3PJ, United Kingdom.
Mass transfer governs the overall catalytic performance of heterogeneous catalysts considerably; however, this fundamental research has often been ignored. Here, macroporous SiO-supported Pt nanoparticle (Pt/SiO-M) and mesoporous SiO-supported Pt nanoparticle (Pt/SiO-m) catalysts were specifically fabricated by a facile thermal reduction step to engineer the resultant Pt nanoparticles showing similar physiochemical properties while possessing completely different porous microstructures exclusively originating from SiO supports. On this basis, a platform to explore the crucial mass transfer difference affecting catalytic activity is then established by systematically practicing industry-important benzene oxidation measurements.
View Article and Find Full Text PDFRapid fabrication and dissolution of pressed Ni/Mg matrix targets for Co production.
EJNMMI Radiopharm Chem
January 2025
Department of Nuclear Medicine and Medical Physics, Karolinska University Hospital, Stockholm, 171 76, Sweden.
Background: Beyond the use of conventional short-lived PET radionuclides, there is a growing interest in tracking larger biomolecules and exploring radiotheranostic applications. One promising option for imaging medium-sized molecules and peptides is ⁵⁵Co (T₁/₂ = 17.5 h, β⁺ = 76%), which enables imaging of new and already established tracers with blood circulation of several hours.
View Article and Find Full Text PDFSynthesis and characterization of new (Au, Ru, and Rh) ion complexes and evaluating their activity as anticancer and antioxidants.
Appl Biochem Biotechnol
January 2025
Department of Chemistry, College of Sciences for Women, University of Baghdad, Baghdad, Iraq.
Azo dye was used to prepare a new series of complexes with chlorides of rhodium (Rh), ruthenium (Ru), and corona (Au). The prepared materials were subjected to infrared, ultraviolet-visible, and mass spectrometry, as well as thermogravimetric analysis, differential calorimetry, and elemental analysis. Conductivity, magnetic susceptibility, metal content, and chlorine content of the complexes were also measured.
View Article and Find Full Text PDFThermal- and Rate-Regulated Fast Switchable Adhesion within Glass Transition Zone of an Epoxy Polymer.
Langmuir
January 2025
Institute of Advanced Manufacturing Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Changzhou 213164, People's Republic of China.
Thermoresponsive shape memory polymer (SMP) adhesives have demonstrated a high adhesion strength and large switching ratios on different substrates. However, a long response time to switch adhesion on or off is generally encountered. This study provides a fast adhesion switching method based on the temperature and rate dependence of adhesion within the glass-transition zone of an epoxy polymer.
View Article and Find Full Text PDFNewly identified SpoVAF/FigP complex: the role in spore germination at moderate high pressure and influencing factors.
Appl Environ Microbiol
January 2025
College of Food Science and Nutritional Engineering, National Engineering Research Center for Fruit and Vegetable Processing, Key Laboratory of Fruit and Vegetable Processing of Ministry of Agriculture and Rural Affairs, Beijing Key Laboratory for Food Non-Thermal Processing, China Agricultural University, Beijing, China.
Unlabelled: The SpoVAF/FigP complex, a newly identified dormant spore ion channel, has been shown to amplify the response of germinant receptors (GRs) to nutrient germinants. However, its contribution to high-pressure-induced germination remains unexplored. In this study, we discovered that the 5AF/FigP complex played an important role in the GR-dependent germination of spores under moderate high pressure (MHP) by facilitating the release of ions, such as potassium (K), a mechanism in parallel with its role in nutrient-induced germination.
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