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In this paper, 2D borophene is synthesized through a liquid‐phase exfoliation. The morphology and structure of as‐prepared borophene are systemically analyzed, and the Z‐scan is used to measure the nonlinear optical properties. It is found that the saturable absorber (SA) properties of borophene make it serve as an excellent broadband optical switch, which is strongly used for mode‐locking in near‐...
2D metal phosphide loop‐sheet heterostructures are controllably synthesized by edge‐topological regulation, where Ni2P nanosheets are edge‐confined by the N‐doped carbon loop, containing ultrafine NiFeP nanocrystals (denoted as NiFeP@NC/Ni2P). This loop‐sheet feature with lifted‐edges prevents the stacking of nanosheets and induces accessible open channels for catalytic site exposure and gas bubble...
Developing cost‐effective and high‐efficiency electrocatalysts toward alkaline oxygen evolution reaction (OER) is crucial for water splitting. Amorphous bimetallic NiFe‐based (oxy)hydroxides have excellent OER activity under alkaline media, but their poorly electrical conductivity impedes the further improvement of their catalytic performance. Herein, a bimetallic NiFe‐based heterostructure electrocatalyst...
In article number 2006133, Juan Aragó, Antonio Costa, Bartolome Soberats, and co‐workers report that the macrocycle MSq self‐assembles into two different aggregates (A and B) depending of the Z,E conformation of the squaramide units. The different self‐assembly modes and the corresponding aggregates of MSq are represented in a tile‐matching puzzle video game screenplay.
2D metal phosphide loop‐sheet heterostructures are controllably synthesized by edge‐topological regulation, where Ni2P nanosheets are edge‐confined by the N‐doped carbon loop containing ultrafine NiFeP nanocrystals. In article number 2006860, Johnny C. Ho and co‐workers report that the loop‐sheet feature with lifted‐edges can prevent the self‐stacking of 2D nanosheets and induce accessible open channels...
P‐type layered oxide is a promising cathode candidate for sodium‐ion batteries (SIBs), but faces the challenge of simultaneously realizing high rate capability and long cycle life. Herein, Co‐substituted NaxMnO2 nanosheets with tunable P2/P3 biphase structures are synthesized by a novel dealloying–annealing strategy. The optimized P2/P3–Na0.67Mn0.64Co0.30Al0.06O2 cathode delivers an excellent rate...
The rising interest on pathway complexity in supramolecular polymerization has prompted the finding of novel monomer designs able to stabilize kinetically trapped species and generate supramolecular polymorphs. In the present work, the exploitation of the Z/E (geometrical) isomerism of squaramide (SQ) units to produce various self‐assembled isoforms and complex supramolecular polymerization pathways...
Self‐assembled materials such as lyotropic liquid crystals offer a wide variety of structures and applications by tuning the composition. Understanding materials behavior under flow and the induced alignment is wanted in order to tailor structure related properties. A method to visualize the structure and anisotropy of ordered systems in situ under dynamic conditions is presented where flow‐induced...
Nanometals have been proven to be efficient thermocatalysts in the last decades. Their enhanced catalytic activity and tunable functionalities make them intriguing candidates for a wide range of catalytic applications, such as gaseous reactions and compound synthesis/decomposition. On the other hand, the enhanced specific surface energy and reactivity of nanometals can lead to configuration transformation...
Despite several decades of research into encapsulation of bacteria, most of the proposed technologies are in the form of immobilized cultures. In this work, sporopollenin exine capsules (SECs) opened, using silica particles which act as pressing micro‐probes, and loaded with Lactobacillus casei (L. casei) cells, are described for the first time. The proposed encapsulation provided ≈30× higher encapsulation...
Novel antimicrobial peptides (AMPs) have revolutionarily evolved into formidable candidates for antibiotic substitute materials against pathogenic infections. However, cost, lability, disorderly sequences, systemic toxicology, and biological profiles have plagued the perennial search. Here, a progressive β‐hairpin solution with the simplest formulation is implanted into an AMP‐based therapeutic strategy...
Endometriosis is an incurable gynecological disease characterized by the abnormal growth of endometrium‐like tissue, characteristic of the uterine lining, outside of the uterine cavity. Millions of people with endometriosis suffer from pelvic pain and infertility. This review aims to discuss whether nanomedicines that are promising therapeutic approaches for various diseases have the potential to...
Probing the dynamics and quantifying the activities of intracellular protein kinases that coordinate cell growth and division and constitute biomarkers and pharmacological targets in hyperproliferative and pathological disorders remain a challenging task. Here engineering and characterization of a nanobiosensor of the mitotic kinase CDK1, through multifunctionalization of carbon nanotubes with a CDK1‐specific...
Developing efficient catalysts for the ammonia oxidation reaction (AOR) is crucial for NH3 utilization as a large‐scale energy carrier. This work reports a promising Ni–Cu–Fe–OOH material for ammonia oxidation, and density functional theory is used to investigate the AOR mechanism. It is revealed that the oxygen‐atoms bonded with the metal‐atom on the surface of electrode play an important role in...
The eukaryotic cell is a smart compartment containing an outer permeable membrane, a cytoskeleton, and functional organelles, presenting part structures for life. The integration of membrane‐containing artificial organelles (=polymersomes) into a large microcompartment is a key step towards the establishment of exquisite cellular biomimetics with different membrane properties. Herein, an efficient...
Due to their stable fluorescence, biocompatibility, and amenability to functionalization, fluorescent nanodiamonds (FND) are promising materials for long term cell labeling and tracking. However, transporting them to the cytosol remains a major challenge, due to low internalization efficiencies and endosomal entrapment. Here, nanostraws in combination with low voltage electroporation pulses are used...
Nanozyme‐based chemodynamic therapy (CDT) has emerged as an effective cancer treatment because of its low side effects and without the requirement of exogenous energy. The therapeutic effect of CDT highlights the pivotal importance of active sites, H2O2 supplement and the glutathione (GSH) depletion of a nanozyme. The construction of a single kind of catalyst with multiple functions for the enhanced...
The first report of a quantized conductance atomic threshold switch (QCATS) using an atomically‐thin hexagonal boron nitride (hBN) layer is provided. This QCATS has applications in memory and logic devices. The QCATS device shows a stable and reproducible conductance quantization state at 1·G0 by forming single‐atom point contact through a monoatomic boron defect in an hBN layer. An atomistic switching...
Upconverting nanoparticles (UCNPs) have been used as optical probes in a great variety of scenarios ranging from cells to animal models. When optically trapped, a single UCNP can be remotely manipulated making possible, for instance, thermal scanning in the surroundings of a living cell. When conventional optics is used, the stability of an optically trapped UCNP is very limited. Its reduced size...
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