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Metal oxide/carbonaceous nanomaterials are promising candidates for energy‐storage applications. However, inhomogeneous mass and charge transfer across the electrode/electrolyte interface due to unstable metal oxide/carbonaceous nanomaterial synthesis limit their performance in supercapacitors. Here, it is shown that the above problems can be mitigated through stable low‐current electrodeposition...
Wearable electronics are emerging as a platform for next‐generation, human‐friendly, electronic devices. A new class of devices with various functionality and amenability for the human body is essential. These new conceptual devices are likely to be a set of various functional devices such as displays, sensors, batteries, etc., which have quite different working conditions, on or in the human body...
Adoptive T lymphocyte immunotherapy is one of the most promising methods to treat residual lesions after glioma surgery. However, the fate of the adoptively transferred T‐cells in vivo is unclear, hampering the understanding of this emerging therapy. Thus, it is highly desirable to develop noninvasive and quantitative in vivo tracking of these T‐cells to glioma for better identification of the migratory...
In this work, a freestanding NiFe oxyfluoride (NiFeOF) holey film is prepared by electrochemical deposition and anodic treatments. With the combination of good electrical conductivity and holey structure, the NiFeOF holey film offers superior electrochemical performance with maximum specific capacitance of 670 F cm−3 (134 mF cm−2), due to the following reasons: (i) The residual metal alloy framework...
Strong light absorption, coupled with moderate carrier transport properties, makes 2D layered transition metal dichalcogenide semiconductors promising candidates for low intensity photodetection applications. However, the performance of these devices is severely bottlenecked by slow response with persistent photocurrent due to long lived charge trapping, and nonreliable characteristics due to undesirable...
The accumulation and formation of β‐amyloid (Aβ) plaques in the brain are distinctive pathological hallmarks of Alzheimer's disease (AD). Designing nanoparticle (NP) contrast agents capable of binding with Aβ highly selectively can potentially facilitate early detection of AD. However, a significant obstacle is the blood brain barrier (BBB), which can preclude the entrance of NPs into the brain for...
Recently, sodium‐ion batteries (SIBs) are extensively explored and are regarded as one of the most promising alternatives to lithium‐ion batteries for electrochemical energy conversion and storage, owing to the abundant raw material resources, low cost, and similar electrochemical behavior of elemental sodium compared to lithium. Metal–organic frameworks (MOFs) have attracted enormous attention due...
Future applications of graphene rely highly on the production of large‐area high‐quality graphene, especially large single‐crystalline graphene, due to the reduction of defects caused by grain boundaries. However, current large single‐crystalline graphene growing methodologies are suffering from low growth rate and as a result, industrial graphene production is always confronted by high energy consumption,...
In artificial photocatalytic hydrogen evolution, effective incident photon absorption and a high‐charge recombination rate are crucial factors influencing the overall efficiency. Herein, a traditional solid‐state synthesis is used to obtain, for the first time, novel samples of few‐layered g‐C3N4 with vertically aligned MoS2 loading (MoS2/C3N4). Thiourea and layered MoO3 are chosen as precursors,...
The development of highly active electrocatalysts is crucial for the advancement of renewable energy conversion devices. The design of core–shell nanoparticle catalysts represents a promising approach to boost catalytic activity as well as save the use of expensive precious metals. Here, a simple, one‐step synthetic route is reported to prepare hexagonal nanosandwich‐shaped Ni@Ru core–shell nanoparticles...
Nanostructured Pt is the most efficient single‐metal catalyst for fuel cell technology. Great efforts have been devoted to optimizing the Pt‐based alloy nanocrystals with desired structure, composition, and shape for boosting the electrocatalytic activity. However, these well‐known controls still show the limited ability in maximizing the Pt utilization efficiency for achieving more efficient fuel...
Herein, the synthesis and self‐assembling features of N‐heterotriangulenes 1–3 decorated in their periphery with 3,4,5‐trialkoxy‐N‐(alkoxy)benzamide moieties that enable kinetic control of the supramolecular polymerization process are described. The selection of an appropriate solvent results in a tunable energy landscape in which the relative energy of the different monomeric or aggregated species...
Plants have a complex passive fluid transport system capable of internalizing small molecules from the environment, and this system offers an ideal route for augmenting plants with functional nanomaterials. Current plant augmentation techniques use pre‐formed nanomaterials and permeabilizing agents or plant cuttings. A so far unexplored concept is the formation of the functional material, in situ,...
Stem‐cell‐based regenerative medicine holds great promise in clinical practices. However, the fate of stem cells after transplantation, including the distribution, viability, and the cell clearance, is not fully understood, which is critical to understand the process and the underlying mechanism of regeneration for better therapeutic effects. Herein, we develop a dual‐labeling strategy to in situ...
A graphene oxide rolled‐up tube production process is reported using wax‐printed membranes for the fabrication of on‐demand engineered micromotors at different levels of oxidation, thickness, and lateral dimensions. The resultant graphene oxide rolled‐up tubes can show magnetic and catalytic movement within the addition of magnetic nanoparticles or sputtered platinum in the surface of graphene‐oxide‐modified...
Ptychographic coherent X‐ray imaging is applied to obtain a projection of the electron density of colloidal crystals, which are promising nanoscale materials for optoelectronic applications and important model systems. Using the incident X‐ray wavefield reconstructed by mixed states approach, a high resolution and high contrast image of the colloidal crystal structure is obtained by ptychography....
In article 1702437, Luis Sánchez and co‐workers describe the synthesis and self‐assembly of N‐heterotriangulenes 1–3 with a tunable energy landscape. Seeded and living supramolecular polymerizations are realized through the autocatalytic transformation of the metastable monomeric units, as well as the two competing off‐ and on‐pathway aggregates. The relevance of controlling pathway complexity in...
In article 1702916, Hailin Peng, Zhongfan Liu, and co‐workers demonstrate low‐temperature, rapid growth of graphene using ethane as a carbon feedstock. The authors achieve both a higher growth rate and larger domain size in comparison to the methane method. This study brings new insights into the effect of carbon feedstock on graphene growth, reducing the energy consumption for massive synthesis of...
In article 1702295, Yang Yang and co‐workers fabricate a freestanding NiFe oxyfluoride holey film using a facile and scalable electrochemical route. The residual metal filaments inside the oxyfluoride make these freestanding electrodes mechanically robust, flexible and highly conductive, which is beneficial for flexible supercapacitors. Two‐electrode asymmetric supercapacitors assembled using the...
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