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In the cathode of proton exchange membrane fuel cells (PEMFCs), Fe and N co‐doped carbon (Fe–N–C) materials with atomically dispersed active sites are one of the satisfactory candidates to replace Pt‐based catalysts. However, Fe–N–C catalysts are vulnerable to attack from reactive oxygen species, resulting in inferior durability, and current strategies failing to balance the activity and stability...
The dynamics rate of traditional metal carbides (TMCs) is relatively slow, severely limiting its fast‐charging capacity for lithium‐ion batteries (LIBs). Herein, the core–shell W@WxC heterostructure is developed to form Mott–Schottky heterostructure, thereby simultaneously accelerating the electronic and ionic transport kinetics during the charging/discharging process. The W nanoparticles are partially...
Ti2C MXene with the lowest formula weight is expected to gain superior advantages in gravimetric capacitances over other heavier MXenes. Nevertheless, its poor chemical and electrochemical stability is the most fatal drawback and seriously hinders its practical applications. Herein, an alloy engineering strategy at the transition metal‐sites of Ti2C MXene is proposed. Theoretical calculations reveal...
Nitrogen doping is an effective strategy to improve potassium ion storage of carbon electrodes via the creation of adsorption sites. However, various undesired defects are often uncontrollably generated during the doping process, limiting doping effect on capacity enhancement and deteriorating the electric conductivity. Herein, boron element is additionally introduced to construct 3D interconnected...
Microfibrous Architectures
In article number 2207331, Jiankang He and co‐workers propose an electrohydrodynamic printing strategy for the fabrication of orderly parallel microfibers with cell‐scale spacing. The resultant microfibrous architectures with cell‐scale spacing can accelerate the directional outgrowth of neurites and collective migration of Schwann cells to form highly‐aligned and densely‐organized...
Electrohydrodynamic (EHD) printing provides unparalleled opportunities in fabricating microfibrous architectures to direct cellular orientation. However, it faces great challenges in depositing orderly microfibers with cell‐scale spacing due to inherent fiber–fiber electrostatic interactions. Here a finite element method is established to analyze the electrostatic forces induced on the EHD‐printed...
Bioprinting has seen significant progress in recent years for the fabrication of bionic tissues with high complexity. However, it remains challenging to develop cell‐laden bioinks exhibiting superior physiochemical properties and bio‐functionality. In this study, a multifunctional nanocomposite bioink is developed based on amine‐functionalized copper (Cu)‐doped mesoporous bioactive glass nanoparticles...
In article number 1801905, Jinlong Shi, Rongqin Huang, Wei Shi, and co‐workers describe a novel drug‐loaded system, OPPD, which uses PEG and OMCN linked to the Pep22 polypeptide targeting the low‐density lipoprotein receptor, that can effectively cross the blood‐brain barrier and target glioma cells, exerting an outstanding therapeutic efficacy via both the near‐infrared photothermal and chemotherapeutic...
Accumulating studies have investigated the efficacy of receptor‐mediated delivery of hydrophobic drugs in glioma chemotherapy. Here, a delivery vehicle comprising polyethylene glycol (PEG) and oxidized nanocrystalline mesoporous carbon particles (OMCN) linked to the Pep22 polypeptide targeting the low‐density lipoprotein receptor (LDLR) is designed to generate a novel drug‐loaded system, designated...
An improved antitumor therapy can be achieved by rationally designing an intelligent nanomedicine with programmed functions to specifically eliminate tumors while leaving healthy tissues untouched. On page 733, X.‐Z. Zhang and co‐workers demonstrate a tailor‐made ZnO‐based nanococktail with a stealth capacity to trigger an intracellular cascade reaction, releasing drugs on‐demand for tumor‐specific...
In this work, a ZnO based nanococktail with programmed functions is designed and synthesized for self‐synergistic tumor targeting therapy. The nanococktail can actively target tumors via specific interaction of hyaluronic acid (HA) with CD44 receptors and respond to HAase‐rich tumor microenvironment to induce intracellular cascade reaction for controlled therapy. The exposed cell‐penetrating peptide...
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