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The study investigated whether both the osteogenic and angiogenic potential of Exos (Exosomes) can be enhanced by overexpression of exosomal miRNA (microRNA) and to confirm whether Exos loaded in HMPs (Hydrogel microparticles) exert long‐term effects during new bone formation. BMSCs and Exos are successfully obtained. In vitro and in vivo experiments confirmed that HDAC4 (Histone deacetylase 4) is...
Complete ethanol oxidation reaction (EOR) in C1 pathway with 12 transferred electrons is highly desirable yet challenging in direct ethanol fuel cells. Herein, PtRh jagged nanowires synthesized via a simple wet‐chemical approach exhibit exceptional EOR mass activity of 1.63 A mgPt−1 and specific activity of 4.07 mA cm−2, 3.62‐fold and 4.28‐folds increments relative to Pt/C, respectively. High proportions...
Proteins exhibit complex and diverse multi‐dimensional structures, along with a wide range of functional groups capable of binding metal ions. By harnessing the unique characteristics of proteins, it is possible to enhance the synthesis of metal‐organic frameworks (MOFs) and modify their morphology. Here, the utilization of biomineralized bovine serum albumin (BSA) protein as a template for synthesizing...
Atomicforce microscopy (AFM)‐based scanning probing techniques, including Kelvinprobe force microscopy (KPFM) and conductive atomic force microscopy (C‐AFM), have been widely applied to investigate thelocal electromagnetic, physical, or molecular characteristics of functional materials on a microscopic scale. The microscopic inhomogeneities of the electronic properties of polycrystalline photovoltaic...
Though Sn‐Pb alloyed perovskite solar cells (PSCs) achieved great progress, there is a dilemma to further increase Sn for less‐Pb requirement. High Sn ratio (>70%) perovskite exhibits nonstoichiometric Sn:Pb:I at film surface to aggravate Sn2+ oxidation and interface energy mismatch. Here, ternary metal alloyed (FASnI3)0.7(MAPb1−xZnxI3)0.3 (x = 0–3%) is constructed for Pb% < 30% perovskite....
Synthesis of green ammonia (NH3) via electrolysis of nitric oxide (NO) is extraordinarily sustainable, but multielectron/proton‐involved hydrogenation steps as well as low concentrations of NO can lead to poor activities and selectivities of electrocatalysts. Herein, it is reported that oxygen‐defective TiO2 nanoarray supported on Ti plate (TiO2−x/TP) behaves as an efficient catalyst for NO reduction...
Electrochemical nitrate (NO3−) reduction reaction (NO3−RR) is a potential sustainable route for large‐scale ambient ammonia (NH3) synthesis and regulating the nitrogen cycle. However, as this reaction involves multi‐electron transfer steps, it urgently needs efficient electrocatalysts on promoting NH3 selectivity. Herein, a rational design of Co nanoparticles anchored on TiO2 nanobelt array on titanium...