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The efficiency of CO2 electroreduction has been largely limited by the activity of the catalysts as well as the three‐phase interface. Herein, a multiscale strategy is proposed to synthesize hierarchical nanofibers covered by carbon nanotubes and embedded with cobalt nanoparticles (Co/CNT/HCNF). The confinement effect of carbon nanotubes can restrict the diameter of the cobalt particles down to several...
Conjugated polymer polypyrrole (PPy) with high electrical conductivity and excellent photothermal effect has been adopted as multifunctional surface modifier on ternary metal sulfide (CdIn2S4, CIS) photoanode for photoelectrochemical (PEC) water splitting for the first time. As a p‐type conducting polymer, PPy forms p–n junction with n‐type CIS to relieve the bulk carrier recombination. Besides, the...
Reduced dimension is one of the effective strategies to modulate thermoelectric properties. In this work, n‐type PbSe/SnSe superlattices with quantum‐well (QW) structure are fabricated by pulsed laser deposition. Here, it is demonstrated that the PbSe/SnSe multiple QW (MQW) shows a high power factor of ≈25.7 µW cm−1 K−2 at 300 K, four times larger than that of PbSe single layers. In addition, thermal...
Metal halide perovskite nanostructures have sparked intense research interest due to their excellent optical properties. In recent years, although the green and red perovskite light‐emitting diodes (PeLEDs) have achieved a significant breakthrough with the external quantum efficiency exceeding 20%, the blue PeLEDs still suffer from inferior performance. Previous reviews about blue PeLEDs focus more...
Silicon is considered the most promising candidate for anode material in lithium‐ion batteries due to the high theoretical capacity. Unfortunately, the vast volume change and low electric conductivity have limited the application of silicon anodes. In the silicon anode system, the binders are essential for mechanical and conductive integrity. However, there are few reviews to comprehensively introduce...
Alkaline water electrolysis is an advanced technology for scalable H2 production using surplus electricity from intermittent energy sources, but it remains challenging for non‐noble electrocatalysts to split water into hydrogen and oxygen efficiently, especially for tungsten disulfide (WS2)‐based catalysts. Density functional theory calculations in combination with experimental study are used to establish...
Achieving high sensitivity over a broad pressure range remains a great challenge in designing piezoresistive pressure sensors due to the irreconcilable requirements in structural deformability against extremely high pressures and piezoresistive sensitivity to very low pressures. This work proposes a hybrid aerogel/hydrogel sensor by integrating a nanotube structured polypyrrole aerogel with a polyacrylamide...
The treatment of diabetic wounds remains a major challenge in clinical practice, with chronic wounds characterized by multiple drug‐resistant bacterial infections, angiopathy, and oxidative damage to the microenvironment. Herein, a novel in situ injectable HA@MnO2/FGF‐2/Exos hydrogel is introduced for improving diabetic wound healing. Through a simple local injection, this hydrogel is able to form...
Tissue Engineering
In article number 2106487, Dongryeol Ryu, GeunHyung Kim, and co‐workers propose a microfluidic device with cell‐laden methacrylated gelatin bioink and alginate as a matrix hydrogel to fabricate a functional hybrid structure, which is obtained using a one‐step process, laden with cell‐aggregated microbeads for tissue engineering applications. The cell‐bead‐laden hybrid struts exhibit...
Parenteral vaccines typically can prime systemic humoral immune response, but with limited effects on cellular and mucosal immunity. Here, a subcutis‐to‐intestine cascade for navigating nanovaccines to address this limitation is proposed. This five‐step cascade includes lymph nodes targeting, uptaken by dendritic cells (DCs), cross‐presentation of antigens, increasing CCR9 expression on DCs, and driving...
Food wastage is a critical and world‐wide issue resulting from an excess of food supply, poor food storage, poor marketing, and unstable markets. Since food quality depends on consumer standards, it becomes necessary to monitor the quality to ensure it meets those standards. Embedding sensors with active nanomaterials in food packaging enables customers to monitor the quality of their food in real‐time...
Plasmonic photocatalysis has emerged as a prominent and growing field. It enables the efficient use of sunlight as an abundant and renewable energy source to drive a myriad of chemical reactions. For instance, plasmonic photocatalysis in materials comprising TiO2 and plasmonic nanoparticles (NPs) enables effective charge carrier separation and the tuning of optical response to longer wavelength regions...
The construction of highly effective phosphorescence energy transfer capturing system still remains great challenge in aqueous phase. Herein, a high‐efficiency supramolecular purely organic room temperature phosphorescence (RTP)‐capturing system via a secondary assembly strategy by taking advantage of cucurbit[8]uril (CB[8]) and amphiphilic calixarene (SC4AH) is reported. Comparing with free bromonaphthalene‐connected...
Aiming at regulating and controlling the localized electronic states while maintaining the metal atoms in the isolation form, an in situ adsorbate induced strategy is proposed at a programmed temperature to activate Zr‐based metal–organic framework (MOF) supported single Pd atom catalyst. It is discovered that in situ treatment environments trigger the change of lattice parameters in MOF materials...
To develop methods to generate, manipulate, and detect plasmonic signals by electrical means with complementary metal–oxide–semiconductor (CMOS)‐compatible materials is essential to realize on‐chip electronic–plasmonic transduction. Here, electrically driven, CMOS‐compatible electronic–plasmonic transducers with Al–AlOX–Cu tunnel junctions as the excitation source of surface plasmon polaritons (SPPs)...
Sodium Ion Batteries
Polymer electrodes have been significantly limited by poor reversible specific capacities, where a majority of aromatic C6‐benzene linkages are redox inactive. In article number 2105927, Xiang Zhu, Hao Jiang, and co‐workers show that decreasing steric hindrance of aromatic C6‐benzene rings within a porous organic framework affords a significant improvement in the redox reaction...
Infrared solar cells (IRSCs) can supplement silicon or perovskite SCs to broaden the utilization of the solar spectrum. As an ideal infrared photovoltaic material, PbS colloidal quantum dots (CQDs) with tunable bandgaps can make good use of solar energy, especially the infrared region. However, as the QD size increases, the energy level shrinking and surface facet evolution makes us reconsider the...
Electrochemical CO2 reduction reaction (CO2RR) is a promising approach to convert CO2 to carbon‐neutral fuels using external electric powers. Here, the Bi2S3‐Bi2O3 nanosheets possessing substantial interface being exposed between the connection of Bi2S3 and Bi2O3 are prepared and subsequently demonstrate to improve CO2RR performance. The electrocatalyst shows formate Faradaic efficiency (FE) of over...
Fluorophores with emission in the second near‐infrared (NIR‐II) window have displayed salient advantages for biomedical applications. However, exploration of new luminogens with high NIR‐II fluorescent brightness is still challenging. Herein, based on the “ring‐fusion” strategy, a series of heteroatom‐inserted rigid‐planar cores is proposed to achieve the bathochromic NIR‐II fluorophores with aggregation‐induced...
Helicene‐based therapeutic agents for organelle‐targeted photodynamic therapy (PDT) involving both type I and II are challenging and still underexplored. Herein, water‐soluble nanoparticles containing twisted double [7]carbohelicene (D7H‐NPs) are prepared through self‐assembly with 1,2‐distearoyl‐sn‐glycero‐3‐phosphoethanolamine‐N‐[methoxy(polyethylene glycol)‐2000] by a nanoprecipitation method....
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