Results 61 to 70 of about 76,468 (295)

Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects

Advanced Materials, EarlyView.
Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley   +1 more source

Environmental effects on the reliability of an AISI 304 structure

Fracture and Structural Integrity, 2019
This work is based on the application of probabilistic fracture mechanics (MRP) models to predict the reliability of pressure pipelines in nuclear power reactors.
Racim Boutelidja, Abdelmoumene Guedri, Mohammed Amine Belyamna, Bachir Merzoug   +3 more
doaj  

Cdt1 stabilizes an open MCM ring for helicase loading

Nature Communications, 2017
ORC, Cdc6 and Cdt1 act together to load hexameric MCM, the motor of the eukaryotic replicative helicase, into double hexamers at replication origins. Here we show that Cdt1 interacts with MCM subunits Mcm2, 4 and 6, which both destabilizes the Mcm2–5 ...
J. Frigola, Jun He, K. Kinkelin, V. E. Pye, L. Renault, M. Douglas, Dirk Remus, P. Cherepanov, Alessandro Costa, J. Diffley   +9 more
semanticscholar   +1 more source

N‐Containing Carbon Materials in Metal‐Free and Non‐Noble Metal Liquid Phase Heterogenous Catalysis

Advanced Synthesis &Catalysis, EarlyView.
Over 100 examples of non‐noble metal supported on N‐containing and metal‐free N‐containing carbon catalysts are discussed. Particular emphasis is put on how different N‐functionalities influence catalyst performance and stability. Preparation procedures are also examined, with a strong focus on how the heat treatment temperature influences N ...
Fulvio Varamo, Anna Katharina Beine
wiley   +1 more source

Efecto de las condiciones de síntesis hidrotérmica de Sn-MCM-41 en la producción de nopol

Revista Facultad de Ingeniería Universidad de Antioquia, 2009
Se prepararon varios catalizadores Sn-MCM-41 por síntesis hidrotérmica a temperatura ambiente usando SnCl2*2H2O como sal precursora. Los materiales se caracterizaron por difracción de rayos X (DRX), TPD de amoníaco, FTIR de piridina adsorbida y TPR con ...
Edwin Alarcón, Aída Luz Villa, Consuelo Montes de Correa   +2 more
doaj  

The GLP1R Agonist Semaglutide Inhibits Reactive Astrocytes and Enhances the Efficacy of Neural Stem Cell Transplantation Therapy in Parkinson's Disease Mice

Advanced Science, EarlyView.
Compared to transplantation of neural stem cells (NSCs) alone, the combined treatment of NSCs with semaglutide more effectively improves motor dysfunction in Parkinson's disease (PD) mice. This synergistic effect may result from semaglutide's ability to suppress microglial activation, thereby preventing the transformation of resting astrocytes into ...
Dan Song, Xiaoya Zou, Di Ma, Yuying Zhao, Tingting Liu, Bibiao Shen, Oumei Cheng   +6 more
wiley   +1 more source

Mechanistic Insights into Adsorptive and Catalytic Reactions from Controllable Distributions of Metal Cations (Pd, Pt, Ni, Cr, Cu) as [M‐OH]+1/1Al or M+2/2Al in Zeolites

Angewandte Chemie, EarlyView.
Selective anchoring of divalent metal ions (Pd, Pt, Ni, Cr, Cu) in zeolites as either M2⁺/2Al or [M─OH]2⁺/1Al enables direct comparison of their distinct catalytic roles. Combining reactive test, spectroscopy, and DFT reveals divergent reactivities in ethylene dimerization, Wacker oxidation, SCR, NO adsorption, and methane oxidation. Abstract Anchoring
Nicholas R. Jaegers, Miroslaw A. Derewinski, Eric D. Walter, Iskra Z. Koleva, Daria Boglaienko, Dhruba J. Deka, Garam Lee, Trent Graham, Libor Kovarik, Yong Wang, Janos Szanyi, Hristiyan A. Aleksandrov, Konstantin Khivantsev   +12 more
wiley   +2 more sources

Substrate‐Controlled Response Coefficients in Thin Films

Advanced Science, EarlyView.
Many material‐specific coefficients, which relate external stimuli and functional responses, are constants governed by atomic vibrations. This work demonstrates the concept of controlling such response coefficients by deformations, or strain, through strain‐induced changes in atomic vibrations.
Marina Tyunina, Leonid L. Rusevich, Maxim Savinov, Tomas Kocourek, Oliva Pacherova, Alexandr Dejneka, Eugene A. Kotomin   +6 more
wiley   +1 more source

Reversible Sandwich‐Based Particle Nanoswitch for Continuous Protein Monitoring at Picomolar Concentrations with Automated Calibration

Angewandte Chemie, EarlyView.
A reversible particle nanoswitch sensor enables continuous protein monitoring by forming transient sandwich complexes in the presence of analyte molecules. Site‐specific conjugations ensure optimal antibody fragment orientation. Demonstrated for lactoferrin, the sensor achieves picomolar sensitivity with ∼12 min time delay and continuous measurements ...
Claire M. S. Michielsen, Junhong Yan, Max H. Bergkamp, Yu‐Ting Lin, Stijn R. R. Haenen, Rafiq M. Lubken, Alexander Gräwe, Anna Swietlikowska, Arthur M. de Jong, Menno W. J. Prins   +9 more
wiley   +2 more sources

Amino-functionalized mesoporous MCM-41 silica as an efficient adsorbent for water treatment: batch and fixed-bed column adsorption of the nitrate anion

Applied Water Science, 2017
In the present study, amino-functionalized Mobil Composite Material No. 41 (MCM-41) was used as an adsorbent to remove nitrate anions from aqueous solutions.
Mehdi Ebrahimi-Gatkash, Habibollah Younesi, A. Shahbazi, A. Heidari   +3 more
semanticscholar   +1 more source