Amorphous iron phosphate (FePO4) has attracted enormous attention as a promising cathode material for sodium‐ion batteries (SIBs) because of its high theoretical specific capacity and superior electrochemical reversibility. Nevertheless, the low rate performance and rapid capacity decline seriously hamper its implementation in SIBs. Herein, we demonstrate a sagacious multi‐step templating approach to skillfully craft amorphous FePO4 yolk–shell nanospheres with mesoporous nanoyolks supported inside the robust porous outer nanoshells. Their unique architecture and large surface area enable these amorphous FePO4 yolk–shell nanospheres to manifest remarkable sodium storage properties with high reversible capacity, outstanding rate performance, and ultralong cycle life.

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Limited tumor permeability of therapeutic agents is a great challenge faced by current cancer therapy methods. Herein, a kind of near infrared light (NIR)‐driven nanomotor with autonomous movement, targeted ability, hierarchical porous structure, multi‐drugs for cancer chemo/photothermal therapy is designed, prepared and characterized. Further, we establish a method to study the interaction between nanomotors and cells, along with their tumor permeability mechanism, including 2D cellular models, 3D multicellular tumor spheroids and in vivo models. In vivo tumor elimination results verify that the movement behaviour of the nanomotors can greatly facilitate them to eliminate tumor through multiple therapeutic methods. This work tries to establish systematic research and evaluation models, providing strategies to understand the relationship between motion behaviour and tumor permeation efficiency of nanomotors in depth.

A bamboo-like nanomaterial composed of V2O5/polyindole (V2O5/PIn) decorated onto the activated carbon cloth was fabricated for supercapacitors. The PIn could effectively enhance the electronic conductivity and prevent the dissolution of vanadium. And the activation of carbon cloth with functional groups is conducive to anchoring the V2O5 and improving surface area, which results in an enhancement of electrochemical performance and leads to a high specific capacitance of 535.5 F/g. Moreover, an asymmetric flexible supercapacitor based on V2O5/PIn@activate carbon cloth and reduced graphene oxide (rGO)@activate carbon cloth exhibits a high energy density (38.7 W h/kg) at a power density of 900 W/kg and good cyclic stability (capacitance retention of 91.1% after 5000 cycles). And the prepared device is shown to power the light-emitting diode bulbs efficiently.

In this work, three azole-based ternary deep eutectic solvents (DESs) were designed for highly efficient absorption of NH3 by utilizing the weak acidity of azoles. Specifically, the DESs are composed of choline chloride (ChCl); a model azole compound such as imidazole (ImZ), triazole (TrZ), or tetrazole (TetrZ); and ethylene glycol (EG). The effects of liquid composition, pressure, and temperature on NH3 solubilities in DESs were examined systematically. It is found that ChCl + TetrZ + EG displays obvious chemical behavior for NH3 absorption owing to the relatively stronger acidity of TetrZ, and it exhibits the highest NH3 capacities among the three DESs. The NH3 capacities of ChCl + TetrZ + EG are superior to most absorbents/adsorbents previously reported, especially when compared at low pressures. Recycling experiments demonstrate that the chemical absorption of NH3 in ChCl + TetrZ + EG is reversible, with only partial loss in NH3 capacities during absorption–desorption cycles. Furthermore, theoretical calculations were performed to gain molecular insights into the absorption of NH3 in azole-based DESs.

Keratin based biomaterials have emerged as potential candidates for various biomedical and biotechnological applications due to their intrinsic biocompatibility, biodegradability, mechanical durability, and natural abundance.

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