A Molecular Drone for Atomic‐Scale Fabrication Working under Ambient Conditions

Despite the enormous potential, atomic‐scale technologies have been hindered by difficulties in processing. Surface atom complexation is exploited as a new paradigm for sub‐nanometric fabrication. A coordination compound behaves as a “molecular drone”: it lands on to the surface, bonds to an atom, and then leaves the surface, thus creating an atomic...

2h

Ion Exchange Lithography: Localized Ion Exchange Reactions for Spatial Patterning of Perovskite Semiconductors and Insulators

Ion exchange lithography (IEL) for integrating user‐defined patterns of desirable chemical compositions in thin films is introduced. In IEL, a reactive nanoparticle “canvas” is locally converted by printing ion exchange “inks”. The proof‐of‐concept and versatility are demonstrated by printing, painting, and airbrushing inks to create perovskite semiconductors...

2h

A Generalized Method for High‐Speed Fluorination of Metal Oxides by Spark Plasma Sintering Yields Ta3O7F and TaO2F with High Photocatalytic Activity for Oxygen Evolution from Water

Spark plasma sintering (SPS) allows the solid‐state fluorination of Ta2O5 to TaO2F and Ta3O7F with poly(tetrafluoroethylene) (PTFE, Teflon) on a minute scale, which reduces the preparation time compared to conventional chemistry by three orders of magnitude. The microstructure of SPS‐prepared TaO2F and Ta3O7F leads to high photocatalytic activity for...

2d

Capturing Cytokines with Advanced Materials: A Potential Strategy to Tackle COVID‐19 Cytokine Storm

Enabled by recent advances in materials science and nanotechnology, emerging biomaterials hold great potential to provide better solutions for COVID‐19 cytokine storm and other inflammatory diseases. By reviewing the state‐of‐the‐art cytokine neutralization systems and highlighting the promising technology development, this work intends to spark further...

2d

Tailoring Surface Self‐Organization for Nanoscale Polygonal Morphology on Germanium

An easy and single‐step method to manipulate the morphology of circular nanoholes via ion beam irradiation is presented. Through nanoscale control over self‐organization process dynamics on the (100) surface of germanium, polygonal structures such as squares, triangles, and hexagons are realized. Highly periodic and protruding nanoscale‐polygons indicate...

2d

Stimuli‐Responsive Memristive Materials for Artificial Synapses and Neuromorphic Computing

The working principles and characteristics of biological neurons and synapses, as well as recent developments of memristive materials and devices that emulate synaptic functions based on electric, magnetic, and optical stimulations are highlighted. Abstract Neuromorphic computing holds promise for building next‐generation intelligent systems...

2d

Directional Modulation of Exciton Emission Using Single Dielectric Nanospheres

A highly miniaturized platform for the control of emission is explored based on individual subwavelength silicon nanospheres. Simultaneous modulation of the directional excitation and exciton emission of 2D transition metal dichalcogenides is demonstrated with controllable forward‐to‐backward intensity ratios. A modified Mie theory for dipole–sphere...

2d

Conversion of Waste Plastics into Value‐Added Carbonaceous Fuels under Mild Conditions

Several strategies including solar‐driven conversion, enzyme‐driven conversion, and low‐temperature‐driven catalytic conversion are developed for converting non‐recyclable plastic wastes into value‐added fuels under mild conditions. Abstract Owing to the extremely difficult breakage of the adamant cross‐linked structures, converting non‐recyclable...

3d

The Intrinsic Charge Carrier Behaviors and Applications of Polyoxometalate Clusters Based Materials

This review focuses on the links between the intrinsic charge carrier behaviors of polyoxometalates (POMs) from a chemistry‐oriented view and their recent ground‐breaking developments in related areas, including molecular‐level electronic devices, solar‐driven, thermal‐driven, and electrochemical‐driven energy generation, conversion and storage systems....

3d

A Systematic Strategy of Combinational Blow for Overcoming Cascade Drug Resistance via NIR‐Light‐Triggered Hyperthermia

A new hydrophobic photothermal conjugated polymer, DAP‐F, is synthesized and utilized to prepare a combined nanoparticle system F–Pt‐nanoparticles (NPs) with a Pt(IV) prodrug. Mild hyperthermia (43 °C), generated from F–Pt‐NPs induced by an 808 nm near‐infrared (NIR) laser, shows potential for clinical translation in therapy of cancer via systematically...

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