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The use of natural cartilage extracellular matrix (ECM) has gained widespread attention in the field of cartilage tissue engineering. However, current approaches for delivering functional scaffolds for osteoarthritis (OA) therapy rely on knee surgery, which is limited by the narrow and complex structure of the articular cavity and carries the risk of injuring surrounding tissues. This work introduces...
Cartilage Regeneration
In article number 2304088, Feng Li, Dong Sun, and co‐workers developed the cell delivery microrobot by a protocol combining decellularization and magnetization. It is derived from the decellularized natural porcine cartilage extracellular matrix, which has a biomechanical environment to that of human cartilage and can efficiently load functional cells while maintaining high...
The spinel Mn‐based cathodes with 3D Li+ diffusion channels, high voltage, and low‐cost show promise for developing high‐power lithium‐ion batteries (LIBs). But the disproportionation and Jahn–Teller distortion lead to structural degeneration and capacity decay, especially at high working temperatures. Herein, considering the merits of single crystals and orientation of exposed crystal planes, single‐crystal...
Stable Li Metal Batteries
Ordered micro‐grooves are prepared by femtosecond laser on Cu foil for lithium metal battery. The deposition of Li can be directed by the micro‐grooves to form ordered and dense Li arrays. This idea for tuning lithium nucleation sites on current collector can significantly enlighten the future work for high‐energy‐density anode‐free full cells. More details can be found in...
Li metal anode is promising to achieve high‐energy‐density battery. However, it has rapid capacity fading due to the generation of inactive Li (dead Li), especially at high current density. This study reveals that the random distribution of Li nuclei leads to large uncertainty for the further growth behavior on Cu foil. Here, periodical regulation of Li nucleation sites on Cu foil by ordered lithiophilic...
Given severe harmfulness of pesticides, unique characteristics of peroxidase‐mimetic nanozymes, and favorable prospects of paper‐based analytical devices (PADs), it is highly desirable to construct a nanozyme‐based PAD for intelligent analysis of pesticide without enzyme/aptamer/antibody and interference of O2. Herein, 2D nanosheet‐like V2O5 (2D‐VONz) with exclusive peroxidase‐mimetic activity is...
The innate inverse Auger effect within bulk silicon can result in multiple carrier generation. Observation of this effect is reliant upon low high‐energy photon reflectance and high‐quality surface passivation. In the photovoltaics industry, metal‐assisted chemical etching (MACE) to afford black silicon (b‐Si) can provide a low high‐energy photon reflectance. However, an industrially feasible and...
The use and storage of renewable and clean energy has become an important trend due to resource depletion, environmental pollution, and the rising price of refined fossil fuels. Confined by the limited resource and uneven distribution of lithium, non‐lithium‐ion batteries have become a new focus for energy storage. The six‐membered‐ring (SMR) is a common structural unit for numerous material systems...
Non‐Lithium‐Ion Batteries
Two‐dimensional six‐membered‐ring inorganic materials are ideal candidates for non‐lithium‐ion battery anodes due to their excellent properties. In article number 2107868, Feng Li and co‐workers summarize the theoretical research of this field in recent years. A series of anodes with high capacity and low ion diffusion barrier are also screened, and the challenges and potential...
Enhanced electrochemiluminescence (ECL) aims to promote higher sensitivity and obtain better detection limit. The core–shell nanostructures, owing to unique surface plasmon resonance (SPR) enabling distance‐dependent strong localized electromagnetic field, have attracted rising attention in enhanced ECL research and application. However, the present structures usually with porous shell involve electrocatalytic...
Metal‐halide perovskites have drawn profuse attention during the past decade, owing to their excellent electrical and optical properties, facile synthesis, efficient energy conversion, and so on. Meanwhile, the development of information storage technologies and digital communications has fueled the demand for novel semiconductor materials. Low‐dimensional perovskites have offered a new force to propel...
Lithium metal is an ideal electrode material for future rechargeable batteries. However, dendrite formation and unstable solid electrolyte interphase film lead to safety concerns and poor Coulombic efficiency (CE). LiNO3 significantly improves the performance of the lithium metal anode in ester electrolytes but its use is restricted by low solubility. To increase the content of LiNO3 in the cell,...
High‐voltage spinel cobalt‐free LiNi0.5Mn1.5O4 (LNMO) is one of the most promising cathode candidates for next‐generation lithium‐ion batteries (LIBs) due to its high specific capacity, high operating voltage, and low cost. However, inferior electronic conductivity, transition metal dissolution, and fast capacity degradation of LNMO, especially in high mass loading for high areal capacity, are the...
Exploring appropriate precursors has been proposed to be a promising strategy for the creation of artificial enzymes that are emerging as alternatives of natural enzymes. Herein, inspired by the catalytic activities of ribose nucleic acid, using ribonucleosides as precursors including adenosine, guanosine, cytidine, and uridine, respectively, four carbonic aggregates, namely, carbon dots (A‐CDs, G‐CDs,...
Metal‐free carbon nanozymes could be promising with the unique features of intrinsic catalytic ability, structure diversity, and strong tolerance to acidic/alkaline media. However, to date, the study of metal‐free carbon nanozymes fell far behind metal‐based nanomaterials, in which, the majority reported much more peroxidase‐like activity than other enzyme‐mimicking behavior (e.g., oxidase). Thus,...
The ever‐increasing development of flexible and wearable electronics has imposed unprecedented demand on flexible batteries of high energy density and excellent mechanical stability. Rechargeable lithium (Li) metal battery shows great advantages in terms of its high theoretical energy density. However, the use of Li metal anode for flexible batteries faces huge challenges in terms of its undesirable...
2D layered organic‐inorganic perovskites have attracted substantial attention due to their high stability and promising optoelectronic properties. However, in‐depth insights on the anisotropic carrier transport properties of these 2D perovskites are remaining challenging, while they are significant for further designing the high‐performance device applications. Here, the carrier transport properties...
Ordered bio‐inorganic hybridization has evolved for the generation of high‐performance materials in living organisms and inspires novel strategies to design artificial hybrid materials. Virus‐like particles (VLPs) are attracting extensive interest as self‐assembling systems and platforms in the fields of biotechnology and nanotechnology. However, as soft nanomaterials, their structural stability remains...
As a promising candidate for large‐scale energy storage, sodium‐ion batteries (SIBs) have superiority due to their low cost and abundance as a resource. Herein, homogeneous Sb2Se3 nanocrystallites embedded in carbon nanofibers (Sb2Se3/CNFs) by electrospinning and selenization treatment are prepared. The obtained Sb2Se3/CNFs exhibit good cycling performance, high reversible capacity, and excellent...
Luminescence nanothermometry is promising for noninvasive probing of temperature in biological microenvironment at nanometric spatial resolution. Yet, wavelength‐ and temperature‐dependent absorption and scattering of tissues distort measured spectral profile, rendering conventional luminescence nanothermometers (ratiometric, intensity, band shape, or spectral shift) problematic for in vivo temperature...
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