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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...
Since the discovery of graphene, research on the family of 2D materials has been a thriving field. Metal phosphorous chalcogenides (MPX3) have attracted renewed attention due to their distinctive physical and chemical properties. The advantages of MPX3, such as tunable layered structures, unique electronic properties, thermodynamically appropriate band alignments and abundant catalytic active sites...
Manipulating the separation and transfer behaviors of charges has long been pursued for promoting the photoelectrochemical (PEC) hydrogen generation based on II–VI quantum dot (QDs), but remains challenging due to the lack of effective strategies. Herein, a facile strategy is reported to regulate the recombination and transfer of interfacial charges through tuning the surface stoichiometry of heterostructured...
Aluminum‐Ion Batteries
In article number 2203236, Hongsen Li and co‐workers develop a Sn‐based alloy (Co3Sn2) as a type of aluminum‐ion battery positive electrode, revealing a bimetallic activated center alloying reaction aluminum storage mechanism. Both Co and Sn act as activation centers and alloy with Al to generate AxSn and AlyCo, respectively, which is fundamentally different from what occurs...
Aluminum is the most abundant metal element in the Earth's crust, thus developing the rechargeable aluminum‐ion batteries (AIBs) provides an ideal opportunity to realize cells with pleasing energy‐to‐price ratios. However, the further development of AIBs is plagued by the scarcity of suitable positive electrode materials. Here, for the first time, a tin‐based alloy positive electrode material for...
The nonradiative charge recombination caused by surface defects and inferior crystalline quality are major roadblocks to further enhancing the performance of CsPbI3−xBrx perovskite solar cells (PSCs). Theoretical calculations indicate that sodium diethyldithiocarbamate (NaDDTC), a popular bacteriostatic benign material, can initiate multiple interactions with the CsPbI3−xBrx perovskite surface to...
The protein corona effect has long been treated as the evil source behind delivery efficacy issues. In this study, this concept is challenged by showcasing that the protein corona can serve as a versatile functionalization approach to improve the delivery efficacy or mitigate nanocytotoxicity. To this end, the depleted serum is introduced to create nanomaterials carrying functionally distinct protein...
To address the environmental crisis caused by excessive emissions of CO2, the development of effective photocatalysts for the conversion of CO2 into chemicals has emerged as one of the most promising strategies. Herein, beyond those well‐studied materials, a rare‐earth sulfide‐based nanocrystal NaCeS2 is fabricated and investigated for efficient and selective conversion of CO2 into CO, where the role...
Intrinsic hydrogen evolution reaction (HER) activity and the mechanism of antiperovskite Ni3In1‐xCuxN bulk cubic particles and multi‐crystalline nanoplates are thoroughly investigated. Stoichiometric Ni3In0.6Cu0.4N reaches the best HER performance, with an overpotential of 102 mV in its multi‐crystalline nanoplates obtained from the LDH‐derived method, and 143 mV in its bulk cubic particles from the...
Herein, a facile and efficient synthesis of microstructured Co3O4 for both supercapacitor and water‐splitting applications is reported. Metal cations (Fe3+, Cu2+) serve as structure‐directing agents regulating the structure of Co compounds, which are subsequently annealed to yield Co3O4. Detailed characterizations and density functional theory (DFT) calculations reveal that the in situ Cl‐doping introduces...
Metal–organic frameworks (MOFs) have potential applications in removing pollutants such as heavy metals, oils, and toxins from water. However, due to the intrinsic fragility of MOFs and their fine powder form, there are still technical barriers to their practical application such as blockage of pipes, difficulty in recovery, and potential environmental toxicity. Therefore, attention has focused on...
As one of the most promising drug‐delivery carriers due to its small size, easy surface modifiability, and hydrophobic interior, cationic poly(amidoamine) (PAMAM) per se, demonstrated by previous reports and the authors’ present study, indicate potential anticancer capability, however, which are restricted by autophagy elicitation. Besides, its side‐toxicity profile, having also been extensively documented,...
Asymmetric catalysis is of crucial importance owing to the huge and rising demand for optically pure substances. Metal–organic frameworks (MOFs) and covalent organic frameworks (COFs), as two emerging crystalline porous materials, have presented great promising applications for heterogeneous asymmetric catalysis. The unique properties, such as, highly regular porous structures, prominent structural...
Micro/nanoscaled motor particles represent a group of intelligent materials that can precisely and rapidly respond to biological microenvironments and improve therapeutic outcomes. In order to maximize biomedical application potentials, developing a nanoscaled motor particle that is able to move autonomously toward a biological target is highly desired but still remains a critical challenge. Herein,...
The inorganic semiconductor is an attractive material in sewage disposal and solar power generation. The main challenges associated with environment‐sensitive semiconductors are structural degradation and deactivation caused by the unfavorable environment. Here, inspired by the pomegranate, a self‐protection strategy based on the self‐assembly of silver chloride (AgCl) particles is reported. The distributed...
Transition‐metal phosphides have flourished as promising candidates for oxygen evolution reaction (OER) electrocatalysts. Herein, it is demonstrated that the electrocatalytic OER performance of CoP can be greatly improved by constructing a hybrid CoP/TiOx heterostructure. The CoP/TiOx heterostructure is fabricated using metal–organic framework nanocrystals as templates, which leads to unique hollow...
Single atom catalysts (SACs) are receiving increasing interests due to their high theoretical catalytic efficiency and intriguing physiochemical properties. However, most of the synthetic methodologies involve high‐temperature treatment. This usually leads to limited control over the spatial distribution of metal sites and collapse of porous network that result in limited active site exposure. A strategy...
Considerable efforts are devoted to relieve the critical lithium dendritic and volume change problems in the lithium metal anode. Constructing uniform Li+ distribution and lithium “host” are shown to be the most promising strategies to drive practical lithium metal anode development. Herein, a uniform Li nucleation/growth behavior in a confined nanospace is verified by constructing vertical graphene...
Local tumor recurrence after surgical resection is a critical concern in cancer therapy, and the current treatments, such as postsurgical chemotherapy, still show undesired side effects. Here a nonimplant strategy (transformation induced localization, TIL) is presented to in situ construct long‐term retentive drug depots, wherein the sustained drug release from fibrous drug depots results in highly...
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