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Highly efficient removal of organic pollutants currently is a main worldwide concern in water treatment, and highly challenging. Here, vertically oriented mesoporous coatings (MCs) with tunable surface properties and pore sizes have been developed via the single‐micelle directing assembly strategy, which show good adsorption performances toward a wide range of organic pollutants. The micelle size...
2D/2D van der Waals Heterostructures
In article number 2100296, Shi‐Zhang Qiao and co‐workers present a ReS2/In2ZnS4 2D/2D van der Waals hetero‐junction (vdWH) that exhibits a highly‐promoted visible‐light photocatalytic H2‐production rate of 2515 mmol h−1 g−1. This is 2266% times that for In2ZnS4. The outstanding performance is attributed to efficient interfacial electron‐hole dissociation/transportation,...
The development of alternative strategies for the efficient treatment of subcutaneous abscesses that do not require the massive use of antibiotics and surgical intervention is urgently needed. Herein, a novel synergistic antibacterial strategy based on photodynamic (PDT) and NO gas therapy is reported, in which, a PDT‐driven NO controllable generation system (Ce6@Arg‐ADP) is developed with l‐Arg‐rich...
Microphysiological systems mimic the in vivo cellular ensemble and microenvironment with the goal of providing more human‐like models for biopharmaceutical research. In this study, the first such model of the blood‐brain barrier (BBB‐on‐chip) featuring both isogenic human induced pluripotent stem cell (hiPSC)‐derived cells and continuous barrier integrity monitoring with <2 min temporal resolution...
Transition metal oxides (TMOs) have been under the spotlight as promising precatalysts for electrochemical oxygen evolution reaction (OER) in alkaline media. However, the slow and incomplete self‐reconstruction from TMOs to (oxy)hydroxides as well as the formed (oxy)hydroxides with unmodified electronic structure gives rise to the inferior OER performance to the noble metal oxide ones. Herein, a unique...
2D non‐layered materials (2DNLMs) featuring massive undercoordinated surface atoms and obvious lattice distortion have shown great promise in catalytic/electrocatalytic applications, but their controllable synthesis remains challenging. Here, a new type of ultrathin carbon‐wrapped titanium nitride nanomesh (TiN NM@C) is prepared using a rationally designed nano‐confinement topochemical conversion...
Pyro‐phototronic and piezo‐phototronic effect have shown their important roles for high performance heterojunction‐based photodetectors (PDs). Here, a coupling effect of pyro‐phototronic and piezo‐phototronic effect is utilized to fabricate a self‐powered and broadband PD based on the MAPbI3 single‐crystal film/n‐Si heterojunction. First, by using the pyro‐phototronic effect derived from MAPbI3, the...
As the lightest solid element and also the simplest metal, lithium (Li) is one of the best representations of quasi‐free electron model in both bulk form and the reduced dimensions. Herein, the controlled growth of 2D ultrathin Li nanosheets is demonstrated by utilizing an in situ electrochemical platform built inside transmission electron microscope (TEM). The as‐grown freestanding 2D Li nanosheets...
Chemodynamic therapy (CDT), which induces cell death by decomposing high levels of H2O2 in tumor cells into highly toxic ·OH, is recognized as a promising antineoplastic approach. However, current CDT approaches are often restricted by the highly controlled and upregulated cellular antioxidant defense. To enhance ·OH‐induced cellular damage by CDT, a covalent organic framework (COF)‐based, ferrocene...
The core@shell structure dimension of the Pd‐based nanocrystals deeply impacts their catalytic properties for C1 and C2 alcohol oxidation reactions. However, the precise simultaneous control on the synthesis of core@shell nanocrystals with different shell dimensions is difficult, and most synthesis on Pd‐based core@shell nanocatalysts involves the surfactants participation by multiple steps, thus...
2D molybdenum ditelluride (MoTe2) with polymorphism is a promising candidate to developing phase‐change memory, high‐performance transistors and spintronic devices. The phase‐transition‐assisted chemical vapor deposition (CVD) process has been used to prepare large‐scale 2H‐MoTe2 with large grain size and low density of grain boundary. However, because of the lack of precise control of the growth...
Quantum Rod Light‐Emitting Diodes
In article number 2101204, Changhee Lee, Jeongkyun Roh, and co‐workers demonstrate polarized electroluminescence (EL) emission in high‐performance quantum rod (QR) light‐emitting diodes (LEDs). By employing the Langmuir‐Blodgett technique, they successfully produce a highly dense QR film with a high degree of alignment. As a result, the fabricated QR‐LEDs exhibit...
Flexible perovskite solar cells (f‐PSCs) have been attracting tremendous attention due to their potentially commercial prospects in flexible energy system and mobile energy system. Reducing the energy barriers and charge extraction losses at the interfaces between perovskite and charge transport layers is essential to improve both efficiency and stability of f‐PSCs. Herein, 4‐trifluoromethylphenylethylamine...
There are still many problems that hinder the development of sodium‐ion batteries (SIBs), including poor rate performance, short‐term cycle lifespan, and inferior low‐temperature property. Herein, excellent Na‐storage performance in fluorophosphate (Na3V2(PO4)2F3) cathode is achieved by lattice regulation based on charge balance theory. Lattice regulation of aliovalent Mn2+ for V3+ increases both...
Cells modulate their homeostasis through the control of redox reactions via transmembrane electron transport systems. These are largely mediated via oxidoreductase enzymes. Their use in biology has been linked to a host of systems including reprogramming for energy requirements in cancer. Consequently, the ability to modulate membrane redox systems may give rise to opportunities to modulate underlying...
Graphene is extensively investigated for various energy storage systems. However, the very low density (<0.01 g cm−3) of graphene nanosheets has hindered its further applications. To solve this issue, a controlled assembly of 2D graphene building blocks should be developed into graphene microspheres with high packing density, and restacking of graphene should be prevented to ensure an electrochemically...
Carbon Nanotube Porins
In article number 2102517, Frankie J. Rawson and co‐workers report the use of carbon nanotube porins (CNTPs) as voltage dependant‐anion channel mimics. CNTPs are inserted into the membrane of neuronal cells. On applying an electric field, gold ions are reduced at the membrane interface containing the CNTPs via low voltage bipolar electrochemistry. Image credit: Dr. Leonora Martínez...
Microphysiological Systems
In article number 2101785, Thomas E. Winkler, Anna Herland, and co‐authors describe a microphysiological blood‐brain barrier model that captures the multicellular interactions of iPS‐derived cells. The integrated electrical sensors, facilitated by PDMS‐free fabrication, allow for real‐time monitoring of how the barrier responds to oxidative stress and antioxidant prophylaxis...
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