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High energy density and flexible electrodes, which have high mechanical properties and electrochemical stability, are critical to the development of wearable electronics. In this work, a free‐standing MXene bonded SnS2 composited nitrogen‐doped carbon fibers (MXene/SnS2@NCFs) film is reported as a flexible anode for sodium‐ion batteries. SnS2 nanoparticles with high‐capacity properties are covalently...
High‐quality photodetectors are always the main way to obtain external information, especially near‐infrared sensors play an important role in remote sensing communication. However, due to the limitation of Silicon (Si) wide bandgap and the incompatibility of most near infrared photoelectric materials with traditional integrated circuits, the development of high performance and wide detection spectrum...
Aqueous Zinc Batteries
In article number 2301770, Yueliang Gu, Xiaochuan Ren, Daming Zhu, Jianxin Zou, and co‐workers elucidate the reaction mechanism of Mn2+ electrolyte additives in aqueous zinc batteries (ZIBs) via operando synchrotron X‐ray diffraction, ex situ X‐ray absorption spectroscopy and electrochemical analyses. A reversible Mn2+/MnO2 deposition/dissolution reaction occurred at the cathode,...
Aqueous zinc batteries (ZIBs) have attracted considerable attention in recent years because of their high safety and eco‐friendly features. Numerous studies have shown that adding Mn2+ salts to ZnSO4 electrolytes enhanced overall energy densities and extended the cycling life of Zn/MnO2 batteries. It is commonly believed that Mn2+ additives in the electrolyte inhibit the dissolution of MnO2 cathode...
Macroscopic 3D porous materials are ideal solar evaporators for water purification. However, the limited sunlight intensity and penetrating depth during solar‐driven evaporation cannot prevent the biofouling formation by photothermal effect, thus leading to the deterioration of evaporation rate. Herein, a magnetic heating strategy is reported for anti‐biofouling solar steam generation based on a magnetic...
Drug Free Tumor Theranostics
In article number 2205165, Tymish Y. Ohulchanskyy and co‐authors introduce hemoglobin nanocrystals for drug free, synergistic and selective theranostics of colon cancer. After intravenous (i.v.) injection, these nanocrystals target colon tumor and react with tumor‐specific H2S and H2O to enable magnetic resonance imaging guided photothermal therapy and produce •OH for...
The conventional approach in cancer nanomedicine involves advanced drug nanocarriers delivering preloaded therapeutics to targeted tumor sites to maximize drug efficiency. However, both cancer drugs and nanocarriers inevitably produce side effects and systemic toxicity. Herein, hemoglobin nanocrystals (HbC) as drug‐free theranostic nanoformulations with the tumor microenvironment (TME) activated diagnostic...
Magnesium‐ion batteries (MIB) have gradually attracted attention owing to their high theoretical capacity, high safety, and low cost. A bimetallic metal–organic framework self‐sacrificing template and a co‐assembly strategy are used to prepare a high‐performance, stable cycling NiSe2‐CoSe2@TiVCTx (NCSe@TiVC) heterostructure MIB cathode that can be used as a flexible integrated unit to power future...
Ultralight and highly flexible aerogel sensors, composed of reduced graphene oxide cross‐linked by sustainable‐macromolecule‐derived carbon, are prepared via facile freeze‐drying and thermal annealing. The synergistic combination of cross‐linked graphene nanosheets and micrometer‐sized honeycomb pores gives rise to the exceptional properties of the aerogels, including superior compressibility and...
Catalase Nanocrystals
In article number 2103569, Tymish Y. Ohulchanskyy, and co‐authors introduce catalase protein nanocrystals as drug nanocarriers producing molecular oxygen within hypoxic tumors. A prolonged catalytic activity of the nanocrystals enables continuing reaction between catalase and endogenous H2O2, which generates oxygen, while the nanocrystal porosity allows for soaking with the photosensitizer...
Photodynamic therapy (PDT) is a well‐known method for cancer therapy in the clinic. However, the inherent hypoxia microenvironment of solid tumors enormously restricts the PDT efficiency. Herein, catalase nanocrystals (CatCry) are introduced as in situ oxygen (O2)‐generating system to relieve tumor hypoxia and enhance PDT efficiency for solid tumors. After loading with photosensitizer methylene blue...
3D incident light confinement by radical electromagnetic fields offers a facile and novel way to break through the performance limit of inorganic perovskite CsPbBr3 quantum dots (QDs). Herein, metallic nanoparticles decorated anodic aluminum oxide (AAO) hybrid plasmonic nanostructures with geometric control are first proposed for cyclic light utilization of perovskite photodetectors, enabled by spatially...
Ultraviolet (UV) light can be used in versatile applications ranging from photoelectronic devices to biomedical imaging. In the development of new UV light sources, in this study, stable UV emission at ≈350 nm is unprecedentedly obtained from carbon nanospheres (CNSs). The origin of the UV fluorescence is comprehensively investigated via various characterization methods, including Raman and Fourier...
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