375 Result(s)
within
Article
Ji** Ma
English
Applied and Technical Physics
Characterization and Evaluation of Materials
Materials Engineering
Nanotechnology
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Article
Self-healing mechanisms for Ge–Sb–S chalcogenide glasses upon gamma irradiation
We report atomistic mechanisms that directly correlate the time-dependent optical responses of bulk Ge23Sb7S70 chalcogenide glasses to their metastable structural defects created and subsequently annihilated foll...
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Article
Tuning the magnetic configuration of bilayer graphene quantum dot by twisting
Twistronics has recently attracted tremendous attention because the twisting can engineer the bilayer graphene-like materials into varying types of strongly correlated phases. In this article, we study the twi...
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Metal–metal phosphide synthesis: Selective phosphidation of Ag–Cu nanocrystals
The incorporation of phosphorous into metal nanoparticles can be an important way to change the material structure and catalytic properties. Colloidal synthesis, hot injection in particular, is well known for ...
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Composition influence on edge dislocation mobility in an FCC high-entropy alloy
Molecular dynamics simulations were conducted to investigate the mobility of edge dislocation on FeNiCrCoCu FCC high-entropy alloy. We calculated the effects of temperature and stress on the dislocation veloci...
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Open AccessPrediction of the epichlorohydrin derived cytotoxic substances from the eluent of poly(glycerol glycidyl ether) films
Glycerol-based epoxy networks have great potential for surface functionalization, providing anti-microbial and protein repellant function. However, the synthesis of glycerol glycidyl ether (GGE) monomer often ...
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Open AccessMaterial aspects of giga-Hertz ZnO TFTs for wireless systems
Having enabled high-value application capabilities through mass production of flat-panel displays, X-ray imagers, and solar panels, Large-Area Electronics (LAE) holds potential to open new frontiers in wireles...
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Correction to: Carrier recombination and transport for Sb2Se3-based homojunction thin film solar cells
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Open AccessPolydopamine-based biofunctional substrate coating promotes mesenchymal stem cell migration
Rapid migration of mesenchymal stem cells (MSCs) on device surfaces could support in vivo tissue integration and might facilitate in vitro organoid formation. Here, polydopamine (PDA) is explored as a biofunct...
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Open AccessThe response of human induced pluripotent stem cells to cyclic temperature changes explored by BIO-AFM
Human induced pluripotent stem cells (hiPSCs) are highly sensitive to extrinsic physical and biochemical signals from their extracellular microenvironments. In this study, we analyzed the effect of cyclic temp...
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Carrier recombination and transport for Sb2Se3-based homojunction thin film solar cells
Antimony selenide (Sb2Se3) exhibits huge potential as an absorber for photovoltaic applications due to its narrow bandgap and high-absorption coefficient at visible wavelength. Herein, Sb2Se3-based homojunction t...
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Article
Effect of powder morphology on the microstructure and mechanical property gradients in stainless steels induced by thermal gradients in spark plasma sintering
Spark plasma sintering (SPS) utilizes joule heating to achieve rapid heating to densify a powder compact. Thermal gradients during SPS lead to microstructural and property gradients in the sintered parts. To e...
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Open AccessStructure, mechanical properties and degradation behavior of electrospun PEEU fiber meshes and films
The capability of a degradable implant to provide mechanical support depends on its degradation behavior. Hydrolytic degradation was studied for a polyesteretherurethane (PEEU70), which consists of poly(p-diox...
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Precipitation in nanostructured alloys: A brief review
Precipitates have been utilized to strengthen various alloys since early last century. Nanostructured (NS) or ultrafine grain (UFG) structured alloys were extensively developed in recent decades, facing a comm...
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Article
Facet-control in selective area growth (SAG) of a-plane GaN by MOVPE
Selective area growth (SAG) of a-plane GaN grown on r-plane sapphire with a stripe orientation along <1-100> was investigated. The key technology of facet-control is optimizing the growth temperature and the r...
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Article
Color Switchable Goggle Lens Based on Electrochromic Polymer Devices
We have developed a set of new electrochromic devices (ECDs) for special application goggles, whose color can be switched between transparent and a specific color mode, i.e. blue (B). This paper will discuss t...
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Modulation of Mesenchymal Stem Cell Migration using Programmable Polymer Sheet Actuators
Recruitment of mesenchymal stem cells (MSCs) to damaged tissue is a crucial step to modulate tissue regeneration. Here, the migration of human adipose-derived stem cells (hADSCs) responding to thermal and mech...
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Advances in light-emitting metal-halide perovskite nanocrystals
Metal-halide perovskites, in particular their nanocrystal forms, have emerged as a new generation of light-emitting materials with exceptional optical properties, including narrow emissions covering the whole ...
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Emergent high-temperature superconductivity at interfaces
Low-dimensional superconductors have been at the forefront of physics research due to their rich physical properties such as high-temperature (Tc) superconductivity. In this article, we review the field of emerge...
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AFM Assessment of the Mechanical Properties of Stem Cells During Differentiation
The dynamic mechanical force transmitted through microenvironments during tissue formation and regeneration continuously impacts the mechanics of cells and thereby regulates gene and protein expression. The me...
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Article
Self-stabilized fibronectin films at the air/water interface
Fibronectin (FN) is a mediator molecule, which can connect cell receptors to the extracellular matrix (ECM) in tissues. This function is highly desirable for biomaterial surfaces in order to support cell adhes...
