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Nanomeshes with highly regular, permeable pores in plane, combining the exceptional porous architectures with intrinsic properties of 2D materials, have attracted increasing attention in recent years. Herein, a series of 2D ultrathin metal–organic nanomeshes with ordered mesopores is obtained by a self‐assembly method, including metal phosphate and metal phosphonate. The resultant mesoporous ferric...
Gene delivery to stem cells is a critical issue of stem cells‐based therapies, still facing ongoing challenges regarding efficiency and safety. Recent advances in the controlled synthesis of biocompatible magnetic iron oxide nanoparticles (IONPs) have provided a powerful nanotool for assisting gene delivery to stem cells. However, this field is still at an early stage, with well‐designed and scalable...
Overproduced hydrogen sulfide (H2S) is of vital importance for the progress of colon cancer and promotes cancer cellular proliferation. Devising pharmacological nanomaterials for tumor‐specific H2S activation will be significant for precise colon cancer treatment. Herein, a biocompatible fusiform iron oxide‐hydroxide nanospindles (FeOOH NSs) nanosystem for magnetic resonance imaging (MRI), ferroptosis,...
The elaborate spatial arrangement and immobilization of highly active electrocatalysts inside porous substrates are crucial for vanadium redox flow batteries capable of high‐rate charging/discharging and stable operation. Herein, a type of bismuth nanosphere/carbon felt is devised and fabricated via the carbothermic reduction of nanostructured bismuth oxides. The bismuth nanospheres with sizes of...
The practical application of lithium–sulfur (Li–S) batteries is hindered by the “shuttle” of lithium polysulfides (LiPS) and sluggish Li–S kinetics issues. Herein, a synergistic strategy combining mesoporous architecture design and defect engineering is proposed to synthesize multifunctional defective 3D ordered mesoporous cobalt sulfide (3DOM N‐Co9S8−x) to address the shuttling and sluggish reaction...
The miniaturization of gold nanorods exhibits a bright prospect for intravital photoacoustic imaging (PAI) and the hollow structure possesses a better plasmonic property. Herein, miniature hollow gold nanorods (M‐AuHNRs) (≈46 nm in length) possessing strong plasmonic absorbance in the second near‐infrared (NIR‐II) window (1000–1350 nm) are developed, which are considered as the most suitable range...
Temporal activation of biological processes by visible light and subsequent return to an inactive state in the absence of light is an essential characteristic of photoreceptor cells. Inspired by these phenomena, light‐responsive materials are very attractive due to the high spatiotemporal control of light irradiation, with light being able to precisely orchestrate processes repeatedly over many cycles...
In article number 2003005, Sejeong Kim, Ki Tae Nam, and co‐workers achieve a large degree of circular polarization (≈45%) at room temperature using a single chiral plasmonic nanoparticle on a transition metal dichalcogenide (TMD) monolayer. The chiral nanoparticle also induces circularly‐polarized luminescence with a linear excitation, which has been rarely reported.
Here, a free‐standing, skin‐like and highly stretchable metasurface with the mechanical modulation of the terahertz transmission is illustrated. In article number 2002484, Yuhang Li, Taisong Pan, and co‐workers fabricate the stretchable metasurface by merely constructing an Al/PI mesh film consisting of serpentine‐like unit cells, only with a total thickness of 7 μm. The metasurface shows the band‐stop...
Light‐driven proton transfer regulates biological pathways in nature. In article number 2002135, Albena Lederer, Dietmar Appelhans, and co‐workers demonstrate the adaption of the functional principle with enzymatic nanoreactors for the cyclic and temporal control over membrane permeability to switch enzymatic reactions ON and OFF on demand.
In article number 2001240, Myung Chul Choi and co‐workers create “tubulin double helix”–based tubular nanostructures by 2D shape changes of tubulin protofilament building blocks in lateral and longitudinal directions. Microtubules are transformed into tubulin double helix resulting in three types of tubular structures—a single‐layered and two double‐layered double‐helical tubulin tubules.
In article number 2003290, Ling Peng and co‐workers report a self‐assembling supramolecular dendrimer probe for tumor imaging by single photon emission computed tomography (SPECT). Altering the radionuclide chelators on the dendrimer surface leads to a highly favorable biodistribution profile with a drastically reduced uptake in liver and a significantly improved tumor imaging contrast.
Ocean acidification is considered detrimental to marine calcifiers based on laboratory studies showing that increased seawater acidity weakens their ability to build calcareous shells needed for growth and protection. In the natural environment, however, the effects of ocean acidification are subject to ecological and evolutionary processes that may allow calcifiers to buffer or reverse these short‐term...
High investment costs and a dependence on noble metal catalysts currently obstruct the large‐scale implementation of proton exchange membrane water electrolyzers (PEMWEs) for converting fluctuating green electricity into chemical energy via water splitting. In this context, this work presents a high‐performing and stable non‐noble metal catalyst for the hydrogen evolution reaction (HER), consisting...
A key hallmark of many diseases, especially those in the central nervous system (CNS), is the change in tissue stiffness due to inflammation and scarring. However, how such changes in microenvironment affect the regenerative process remains poorly understood. Here, a biomimicking fiber platform that provides independent variation of fiber structural and intrinsic stiffness is reported. To demonstrate...
Valley polarization is among the most critical attributes of atomically thin materials. However, increasing contrast from monolayer transition metal dichalcogenides (TMDs) has so far been challenging. In this work, a large degree of circular polarization up to 45% from a monolayer WS2 is achieved at room temperature by using a single chiral plasmonic nanoparticle. The increased contrast is attributed...
Conjugated polymers are promising light harvesters for water reduction/oxidation due to their simple synthesis and adjustable bandgap. Herein, both cyanamide and triazole functional groups are first incorporated into a heptazine‐based carbon nitride (CN) polymer, resulting in a mesoporous conjugated cyanamide‐triazole‐heptazine polymer (CTHP) with different compositions by increasing the quantity...
Tailored construction of advanced flexible supercapacitors (SCs) is of great importance to the development of high‐performance wearable modern electronics. Herein, a facile combined wet chemical method to fabricate novel mesoporous vanadium nitride (VN) composite arrays coupled with poly(3,4‐ethylenedioxythiophene) (PEDOT) as flexible electrodes for all‐solid‐state SCs is reported. The mesoporous...
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