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Solid‐state batteries have become the most anticipated option for compatibility with high‐energy density and safety. In situ polymerization, a novel strategy for the construction of solid‐state systems, has extended its application from solid polymer electrolyte systems to other solid‐state systems. This review summarizes the application of in situ polymerization strategies in solid‐state batteries,...
Various applications lead to the requirement of nanozymes with either specific activity or multiple enzyme‐like activities. To this end, intelligent nanozymes with freely switching specificity abilities hold great promise to adapt to complicated and changeable practical conditions. Herein, a nitrogen‐doped carbon‐supported copper single‐atom nanozyme (named Cu SA/NC) with switchable specificity is...
For large‐scale fuel cell applications, it is significant to replace expensive Pt‐based oxygen reduction reaction (ORR) electrocatalysts with nonprecious metal‐ or metal‐free carbon‐based catalysts with high activity. However, it is still challenging to deeply understand the role of intrinsic defects and the origin of ORR activity in pure nanocarbon. Therefore, a novel self‐assembly and a pyrolysis...
On‐chip silicon microcavity sensors are advantageous for the detection of virus and biomolecules due to their compactness and the enhanced light–matter interaction with the analyte. While their theoretical sensitivity is at the single‐molecule level, the fabrication of high quality (Q) factor silicon cavities and their integration with optical couplers remain as major hurdles in applications such...
Though nanozymes are successfully applied in various areas, the increasing demands facilitate the exploitation of nanozymes possessing higher activity and more functions. Natural enzyme‐linked receptors (ELRs) are critical components for signal transductions in vivo by expressing activity variations after binding with ligands. Inspired by this, the defect‐engineered carbon nitrides (DCN) are reported...
COVID‐19 pandemic, caused by severe acute respiratory syndrome coronavirus 2, has resulted in global social and economic disruption, putting the world economy to the largest global recession since the Great Depression. To control the spread of COVID‐19, cutting off the transmission route is a critical step. In this work, the efficient inactivation of human coronavirus with photodynamic therapy (PDT)...
Lianrong Wang, Engui Zhao, Sijie Chen and co‐workers (article number 2101770) develop a novel membrane‐targeting photosensitizer (DTTPB) with aggregation‐induced emission characteristics for efficient photodynamic inactivation of human coronaviruses. DTTPB can bind to the envelope of human coronaviruses and sensitize the production of reactive oxygen species, which can effectively inactivate human...
For successful 3D bioprinting, the selection of an appropriate crosslinking method is required, to ensure printability, cytocompatibility, stability and sustainability of the resulting constructs. In article number 2002931, Amin GhavamiNejad, Ali Khademhosseini, and co‐workers summarize recent advances made in the development of crosslinking methods of hydrogel‐based bioinks.
Three‐dimensional (3D) bioprinting has recently advanced as an important tool to produce viable constructs that can be used for regenerative purposes or as tissue models. To develop biomimetic and sustainable 3D constructs, several important processing aspects need to be considered, among which crosslinking is most important for achieving desirable biomechanical stability of printed structures, which...
Single‐atom catalysts (SACs) have attracted extensive attention in the catalysis field because of their remarkable catalytic activity, gratifying stability, excellent selectivity, and 100% atom utilization. With atomically dispersed metal active sites, Fe‐N‐C SACs can mimic oxidase by activating O2 into reactive oxygen species, O2−• radicals. Taking advantages of this property, single‐atom nanozymes...
Noble metal hydrogels/aerogels with macroscopic nanoassemblies characterized by ultralow density, profuse continuous porosity, and extremely large surface area have gained abundant interest due to not only their tunable physicochemical properties, but also promising applications in catalysis and sensing. Coupling the increased reaction temperature with dopamine‐induced effect, herein, a one‐step synthetic...
Nanostructured carbon aerogels with outstanding physicochemical properties have exhibited great application potentials in widespread fields and therefore attracted extensive attentions recently. It is still a challenge so far to develop flexible and economical routes to fabricate high‐performance nanocarbon aerogels, preferably based on renewable resources. Here, ultralight and multifunctional reduced...
It is urgent to develop new kinds of low‐cost and high‐performance nonprecious metal (NPM) catalysts as alternatives to Pt‐based catalysts for oxygen reduction reaction (ORR) in fuel cells and metal–air batteries, which have been proved to be efficient to meet the challenge of increase of global energy demand and CO2 emissions. Here, an economical and sustainable method is developed for the synthesis...
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