Results 101 to 110 of about 333,900 (300)
3D Soft Hydrogels Induce Human Mesenchymal Stem Cells “Deep” Quiescence
Advanced Healthcare Materials, EarlyView.Three‐dimensional soft hydrogels mimicking the bone marrow niche induce deep quiescence in human mesenchymal stem cells. Unlike 2D culture, 3D matrices halt proliferation, regulate cell‐cycle and quiescence markers, and downregulate mTORC1 signaling, preserving stem cell phenotype and therapeutic potential ex vivo.
David Boaventura Gomes +11 more
wiley +1 more source
Experimental Study on Mechanical Properties of Fiber Recycled Concrete
Renmin Zhujiang, 2022 In this paper,the influence of fiber types on the mechanical properties of recycled concrete materials is analyzed by controlling the fiber types in recycled concrete materials.Then,the influence of the diameter,length,and mass ratio of polypropylene ...
GUAN Xiaodi +4 more
doaj
Synthesizing polypropylene with percolation network catalyzed by inorganic nanoparticles-functionalized Ziegler-Natta catalyst [PDF]
Polyolefins JournalPolypropylene is one of the most widely used synthetic resins, which is mainly synthesized with Ziegler-Natta catalysts. In this paper, the functionalized Ziegler-Natta catalyst is applied to prepare high-performance polypropylene.
Tingting Yang +3 more
doaj +1 more source
Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes
Advanced Materials, EarlyView.Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro +13 more
wiley +1 more source
Observation of magnetism in Au thin films
, 2006 Direct magnetization measurements of thin gold films are presented. These measurements integrate the signal from the thin film under study and the magnetic contribution of the film's interface with the substrate.
G. Leitus +3 more
core +1 more source
Lipopeptide overproduction by cell immobilization on iron-enriched light polymer particles [PDF]
, 2009 The study concerns surfactin and/or fengycin batch production by immobilized cells of Bacillus subtilis ATCC 21332. Light carriers designed for a three phase inverse fluidized bed biofilm reactor (TPFIBR) were used.
Gancel, Frédérique +4 more
core +1 more source
Advanced Materials, EarlyView.Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine +5 more
wiley +1 more source
Polypropylene Insulation Failure Model Modification Based on Space Charge and Trap Parameters
High VoltageThe performance of polypropylene film determines the reliability of capacitors. This paper studies the change of insulation characteristics of the insulation dielectric polypropylene of high‐voltage capacitors during the long‐term operation process ...
Beibei Sun +6 more
doaj +1 more source
Real-time quantitative analysis of volatile products generated during solid-state polypropylene thermal oxidation [PDF]
, 2013 Analysis of volatile organic compounds (VOCs) during PP thermal oxidation under three oxygen partial pressures (0%, 21% and 100% of atmospheric pressure) at 140 C was performed by proton transfer reaction coupled with Fourier transform ion cyclotron ...
COLIN, Xavier +6 more
core +4 more sources