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Healing of large calvarial bone defects remains challenging. An RNA‐guided Split dCas12a system is previously harnessed to activate long non‐coding RNA H19 (lncRNA H19, referred to as H19 thereafter) in bone marrow‐derived mesenchymal stem cells (BMSCs). H19 activation in BMSCs induces chondrogenic differentiation, switches bone healing pathways, and improves calvarial bone repair. Since adipose‐derived...
Main group element‐based materials are emerging catalysts for ammonia (NH3) production via a sustainable electrochemical nitrogen reduction reaction (N2RR) pathway under ambient conditions. However, their N2RR performances are less explored due to the limited active behavior and unclear mechanism. Here, an aluminum‐based defective metal–organic framework (MOF), aluminum‐fumarate (Al‐Fum), is investigated...
Herein, carbon dot (CD)‐supported Fe single‐atom nanozymes with high content of pyrrolic N and ultrasmall size (ph‐CDs‐Fe SAzyme) are fabricated by a phenanthroline‐mediated ligand‐assisted strategy. Compared with phenanthroline‐free nanozymes (CDs‐Fe SAzyme), ph‐CDs‐Fe SAzyme exhibit higher peroxidase (POD)‐like activity due to their structure similar to that of ferriporphyrin in natural POD. Aberration‐corrected...
In multienzymes cascade reaction, the inter‐enzyme spacing is supposed to be a factor affecting the cascade activity. Here, a simple and efficient Y‐shaped DNA scaffold is assembled using two partially complementary DNA single strands on magnetic microspheres, which is used to coimmobilize glucose oxidase (GOD) and horseradish peroxidase (HRP). As a result, on poly(vinyl acetate) magnetic microspheres...
Design and development of highly efficient photocatalytic materials are key to employ photocatalytic technology as a sound solution to energy and environment related challenges. This work aims to significantly boost photocatalytic activity through rich indium vacancies (VIn) In2S3 with atomic p–n homojunction through a one‐pot preparation strategy. Positron annihilation spectroscopy and electron paramagnetic...
Functional nanomaterials such as iron oxide nanoparticles have been extensively explored for the diagnosis and treatment of central nervous system diseases. However, an insufficient understanding of the comprehensive nanomaterial‐biological interactions in the brain hinders the nanomaterials from meeting the medical requirements for translational research. Here, FDA‐approved ferumoxytol, an iron oxide...
Interface modification to minimize charge recombination and trapping for efficient charge transport is crucial for the performance of perovskite solar cells (PSCs). Herein, functionalized p‐type blue carbon dots (B‐CDs) are ventured as an interface passivation layer to enhance the efficiency and long‐term stability of all‐inorganic CsPbI2Br PSCs. It is found that first the blue carbon dots with abundant...
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...
Tailoring the near‐surface composition of Pt‐based alloy can optimize the surface chemical properties of a nanocatalyst and further improve the sluggish H2 electrooxidation performance in an alkaline electrolyte. However, the construction of alloy nanomaterials with a precise near‐surface composition and smaller particle size still needs to overcome huge obstacles. Herein, ultra‐small PtRu3 binary...
In recent years, with the growing demand for higher capacity, longer cycling life, and higher power and energy density of lithium ion batteries (LIBs), the traditional insertion‐based anodes are increasingly considered out of their depth. Herein, attention is paid to the structural reorganization electrode, which is the general term for conversion‐based and alloying‐based materials according to their...
In cells, mechanical forces play a key role in impacting cell behaviors, including adhesion, differentiation, migration, and death. Herein, a 20 nm mitochondria‐targeted zinc‐doped iron oxide nanocube is designed as a nanospinner to exert mechanical forces under a rotating magnetic field (RMF) at 15 Hz and 40 mT to fight against cancer. The nanospinners can efficiently target the mitochondria of cancer...
All‐inorganic perovskite solar cells have developed rapidly in the last two years due to their excellent thermal and light stability. However, low efficiency and moisture instability limit their future commercial application. The mixed‐halide inorganic CsPbI2Br perovskite with a suitable bandgap offers a good balance between phase stability and light harvesting. However, high defect density and low...
Capping agents are the essential factor in nanoscience and nanotechnology. However, the types of capping agents are greatly limited. Defying conventional beliefs, here is shown that metal cations can also be considered as capping agents for oxide nanoparticles, particularly in maintaining their colloidal stability and controlling their facets. Here the general stabilizing effects of multivalent cations...
Neutrophils, the most abundant leukocytes (50–70% of the total leukocytes in circulation), are the major type of cells recruited to sites of inflammation during infection and tumorigenesis, suggesting that neutrophils could contribute to nanotherapeutics for inflammation and cancer therapy. Neutrophil‐based delivery has shown great potential in circumventing nanotherapeutics limitations, such as low...
In the information age, it is important to protect the security and integrity of the information. As a result, the fluorescent ink as an antifake technology and the fingermark as an information carrier have aroused great interest. In this work, highly water‐soluble lanthanide (Ln3+)‐doped tetragonal phase (t‐) LaVO4 nanoparticles (NPs) are successfully obtained via a simple, fast, and green microwave‐assisted...
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