Science China Materials

http://link.springer.com/journal/40843

List of Papers (Total 274)

Conditions for magnetic and electronic properties of ultrathin Ni–Fe hydroxide nanosheets as catalysts: a DFT+U study

The effects of cation ordering and surface compensating anions on the magnetic structure and catalytic properties of unilamellar Ni–Fe hydroxide nanosheets are studied by using the density functional theory (DFT) plus U method. Fe-segregation in the nanosheets yields magnetic domains with different spin alignments, while the surface compensating anions affect the local moments and ...

Albumin nanoreactor-templated synthesis of Gd2O3/CuS hybrid nanodots for cancer theranostics

It remains a great challenge to explore the facile way to fabricate multi-component nanoparticles in theranostic nanomedicine. Herein, an albumin nanoreactor templated synthesis of theranostic Gd2O3/CuS hybrid nanodots (NDs) has been developed for multimodal imaging guided photothermal tumor ablation. Gd2O3/CuS NDs are found to possess particle size of 4.4 ± 1.1 nm, enhanced ...

Fabrication of compact and stable perovskite films with optimized precursor composition in the fast-growing procedure

The fast-growing procedure (FGP) provides a simple, high-yield and lead (Pb)-release free method to prepare perovskite films. In the FGP, the ultra-dilute perovskite precursor solution is drop-cast onto a hot (~240°C) substrate, where a perovskite film grows immediately accompanied by the rapid evaporation of the host solvent. In this process, all the raw materials in the precursor ...

F-doped O3-NaNi1/3Fe1/3Mn1/3O2 as high-performance cathode materials for sodium-ion batteries

The F-doped O3-type NaNi1/3Fe1/3Mn1/3O2−x F x (x = 0, 0.005, 0.01, 002 and noted as NFM-F0, NFM-F0.005, NFM-F0.01, NFM-F0.02, respectively, united as NFM-Fs) cathode materials were investigated systematically. The rate performance and capacity retention of the O3-type cathode materials are significantly improved as a function of specific F-doping levels. Optimum performance is ...

Tuning the molecular size of site-specific interferon-polymer conjugate for optimized antitumor efficacy

The covalent attachment of protein-resistant polymers to therapeutic proteins is a widely used method for extending their in vivo half-lives; however, the effect of molecular weight of polymer on the in vitro and in vivo functions of protein-polymer conjugates has not been well elucidated. Herein we report the effect of molecular weight of poly(oligo(ethylene glycol) methyl ether ...

Magnetic drug delivery systems

There has been unprecedented progress in the development of biomedical nanotechnology and nanomaterials over the past few decades, and nanoparticle-based drug delivery systems (DDSs) have great potential for clinical applications. Among these, magnetic drug delivery systems (MDDSs) based on magnetic nanoparticles (MNPs) are attracting increasing attention owing to their favorable ...

Highly active CeO2 hollow-shell spheres with Al doping

Metal oxide hollow structures are of great interest in many current and emerging areas of technology. This paper presents a facile and controlled protocol for the synthesis of Al-doped CeO2 hollow-shell spheres (CHS), where the dopant confers enhanced stability and activity to the material. These Al-doped CeO2 hollow-shell spheres (ACHS) possess a controllable shell number of up to ...

Enhanced adsorption of carbonyl molecules on graphene via π-Li-π interaction: a first-principle study

Carbonyl compounds with elements of C, H, and O and reversible redox-active centers are promising electrode materials in rechargeable batteries owing to their high theoretical capacity, structure flexibility and resources abundance. However, the low conductivity and the dissolution of active molecules in organic electrolyte limit the practical application. Immobilizing the ...

Progress in organic-inorganic hybrid halide perovskite single crystal: growth techniques and applications

As a new generation of solution-processable optoelectronic materials, organic-inorganic hybrid halide perovskites have attracted a great deal of interest due to their high and balanced carrier mobility, long carrier diffusion length and large light absorption coefficient. These materials have demonstrated wide applications in solar cell, light-emitting diode, laser, photodetector, ...

Bimetallic organic frameworks derived CuNi/carbon nanocomposites as efficient electrocatalysts for oxygen reduction reaction

Catalysts of oxygen reduction reaction (ORR) play key roles in renewable energy technologies such as metal-air batteries and fuel cells. Despite tremendous efforts, highly active catalysts with low cost remain elusive. This work used metal-organic frameworks to synthesize non-precious bimetallic carbon nanocomposites as efficient ORR catalysts. Although carbon-based Cu and Ni are ...

Hydrogel-based phototherapy for fighting cancer and bacterial infection

Hydrogels constitute a group of polymeric materials which can hold a large amount of water in their three-dimensional networks due to their hydrophilic structures. In the past few years, they have been researched for various biomedical applications, such as drug/cell carriers, tissue engineering, and biosensors. Particularly, the hydrogels used as drug delivery systems have shown ...

Symmetry-breaking assembled porous calcite microspheres and their multiple dental applications

Biomedical applications of porous calcium carbonate (CaCO3) microspheres have been mainly restricted by their aqueous instability and low remineralization rate. To overcome these obstacles, a novel symmetry-breaking assembled porous calcite microsphere (PCMS) was constructed in an ethanol/water mixed system using a two-step vapor-diffusion/aging crystallization strategy. In ...