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Despite nearly a century of clinical use as a blood thinner, heparin's rapid serum clearance and potential to induce severe bleeding events continue to urge the development of more effective controlled delivery strategies. Subcutaneous depots that steadily release the anticoagulant into circulation represent a promising approach to reducing overdose frequency, sustaining therapeutic concentrations...
In recent years, some experiments and theoretical work have pointed out that diatomic catalysts not only retain the advantages of monoatomic catalysts, but also introduce a variety of interactions, which exceed the theoretical limit of catalytic performance and can be applied to many catalytic fields. Here, the interaction between adjacent metal atoms in diatomic catalysts is elaborated: synergistic...
The pH‐responsive theragnostics exhibit great potential for precision diagnosis and treatment of diseases. Herein, acidity‐activatable nanoparticles of GB@P based on glucose oxidase (GO) and polyaniline are developed for treatment of biofilm infection. Catalyzed by GO, GB@P triggers the conversion of glucose into gluconic acid and hydrogen peroxide (H2O2), enabling an acidic microenvironment‐activated...
The polymerization of 1,4‐benzenediboronic acid (BDBA) on mica to form a covalent organic framework (COF‐1) reveals a dramatic increase in crystallinity when physically confined by exfoliated graphene. COF‐1 domains formed under graphene confinement are highly geometric in shape and on the order of square micrometers in size, while outside of the exfoliated flakes, the COF‐1 does not exhibit long‐range...
The rational design of high‐performance and cost‐effective electrocatalysts to overcome the kinetically sluggish water oxidation reaction is a grand challenge in water electrolysis. Transitional metals with incompletely filled d orbitals are expected to have intrinsic electronic interaction to promote the reaction kinetics, however, the construction of multiple active sites is still a bottleneck problem...
Tissue‐specific natural anisotropic microstructures play an important role in the normal functioning of tissues, yet they remain difficult to construct by current printing techniques. Herein, a stepwise algorithm‐assisted bioprinting technology for the construction of biomimetic tissues with a customizable anisotropic microstructure by combining the Adaptive Mesh Generation algorithm and the Greedy...
Bias‐Free Water Splitting
In article number 2204495, Xin Tong, Lianzhou Wang, Zhiming M. Wang, and co‐workers develop a quantum dots (QDs)‐based photoelectrochemical (PEC) device comprised of tandem Zn‐doped CuInS2 QDs‐decorated metal oxide electrodes (BiVO4 and Cu2O) for bias‐free solar water splitting. Both the ligands capped on QDs and QDs‐electrode heterojunctions are rationally engineered to...
MXene Synthesis
In article number 2203767, Chong‐Min Koo and co‐workers show that a high temperature non‐aqueous synthesis of Ti3C2Tx can significantly enhance the reaction rate and yield of delaminated MXene flakes with high quality. Additionally, Ti3C2Tx prepared by this method is covered with more F‐terminations and exhibits high tensile strength. These findings offer new opportunities towards...
Nucleic acid nanoparticles, or NANPs, rationally designed to communicate with the human immune system, can offer innovative therapeutic strategies to overcome the limitations of traditional nucleic acid therapies. Each set of NANPs is unique in their architectural parameters and physicochemical properties, which together with the type of delivery vehicles determine the kind and the magnitude of their...
To improve the photoelectrochemical (PEC) performance of photocatalysts, the doping strategy through covalent functionalization is often adopted to adjust material electronic structures. By contrast, this work demonstrates that the noncovalent interaction in the case of iodinated graphitic carbon nitride (g‐CN) film can also enhance the PEC performance. Through a facile synthesis method of rapid thermal...
Scale formation is a longstanding and unresolved problem in a number of fields, including power production, petroleum exploration, thermal desalination, and construction. Herein, a high‐temperature scale‐resistant slippery lubricant‐induced surface (HTS‐SLIPS) is developed by one‐step electrodeposition and lubricant infusion. The fractal cauliflower‐like morphology with lubricant oil is conducive...
2D transition metal carbides or nitrides (MXenes) have attracted considerable attention from materials scientists and engineers owing to their physicochemical properties. Currently, MXenes are synthesized from MAX‐phase precursors using aqueous HF. Here, in order to enhance the production of MXenes, an anhydrous etching solution is proposed, consisting of dimethylsulfoxide as solvent with its high...
Tuning the electronic structures of mesocrystals at the atomic level is an effective approach to obtaining unprecedented properties. Here, a lattice‐confined strategy to obtain isolated single‐site Sn atoms in CuO mesocrystals to improve catalytic performance is reported. The Sn/CuO mesocrystal composite (Sn/CuO MC) has ordered Sn–O–Cu atomic interfaces originated from the long‐range ordering of the...
Developing a universal nanoplatform for efficient delivery of various drugs to target sites is urgent for overcoming various biological barriers and realizing combinational cancer treatment. Nanogels, with the advantages of both hydrogels and nanoparticles, may hold potential for addressing the above issue. Here, a dual‐responsive nanogel platform (HPC nanogel) is constructed using β‐cyclodextrin‐conjugated...
Liquid–liquid phase separation of polymer and protein solutions is central in many areas of biology and material sciences. Here, an experimental and theoretical framework is provided to investigate the thermodynamics and kinetics of liquid–liquid phase separation in volumes comparable to cells. The strategy leverages droplet microfluidics to accurately measure the volume of the dense phase generated...
Water contamination resulting from heavy metal ions (HMIs) poses a severe threat to public health and the ecosystem. Attempts are tending to develop functional materials to realize efficient and intelligent adsorption of HMIs. Herein, self‐propelled structural color cylindrical micromotors (SCCMs) with reversible HMIs adsorption capacity and self‐reporting property are presented. The SCCMs are fabricated...
Hydrogenation is a promising technique to prepare black TiO2 (H‐TiO2) for solar water splitting, however, there remain limitations such as severe preparation conditions and underexplored hydrogenation mechanisms to inefficient hydrogenation and poor photoelectrochemical (PEC) performance to be overcome for practical applications. Here, a room‐temperature and rapid plasma hydrogenation (RRPH) strategy...
Power generation by converting energy from the ambient environment has been considered a promising strategy for developing decentralized electrification systems to complement the electricity supply for daily use. Wet gases, such as water evaporation or moisture in the atmosphere, can be utilized as a tremendous source of electricity by emerging power generation devices, that is, moisture‐enabled‐electric...
The tremendous volume change and severe pulverization of micro‐sized Sb anode generate no stable capacity in potassium‐ion batteries (PIBs). The honeycomb‐like porous structure provides free spaces to accommodate its volume expansion and offers efficient ion transport, yet complex synthesis and low yield limits its large‐scale application. Here, a green, scalable template‐free method for designing...
Surface states are one of the crucial factors determining the phase stability of formamidinium‐based perovskites. Compared with other compositions, exclusive lattice strain in FAPbI3 perovskite generates defects at the surface more readily, making them more vulnerable at the surface and easier to trigger the phase transition from α‐phase to the non‐perovskite δ‐phase. In order to regulate the surface...
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