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Anti‐Tumor Immunity
An “ABC” ternary membrane‐derived nanosystem blended from antigen‐presenting mature dendritic cell membranes (“A”), bacterial E. coli cytoplasmic membranes (“B”), and cancer cell membranes (“C”), shows great promise for use as a personalized tumor nanovaccine. ABC nanovaccine elicits immune responses on patient‐derived dendritic cells (DCs) by homologous vaccines and promotes recovery...
The use of orally‐administered therapeutic proteins for treatment of inflammatory bowel disease (IBD) has been limited due to the harsh gastrointestinal environment and low bioavailability that affects delivery to diseased sites. Here, a nested delivery system, termed Gal‐IL10‐EVs (C/A) that protects interleukin 10 (IL‐10) from degradation in the stomach and enables targeted delivery of IL‐10 to inflammatory...
Cancer vaccines generally are limited by insufficient tumor‐specific cellular immunogenicity. Herein, a potent “ABC” ternary membrane‐derived vaccine system blended from antigen‐presenting mature dendritic cell membranes (“A”), bacterial E. coli cytoplasmic membranes (“B”), and cancer cell membranes (“C”) is developed using a block‐copolymer micelle‐enabled approach. The respective ABC membrane components...
Oxygen evolution reaction (OER) is one of the important half‐reactions in energy conversion equipment such as water‐spitting devices, rechargeable metal‐air batteries, and so on. It is beneficial to develop efficient and low‐cost catalysts that understand the reaction mechanism of OER and analyze the reconstruction phenomenon of transition metal sulfide. Interestingly, copper sulfide and cuprous sulfide...
Heterojunctions coupled into micro‐mesoscopic structures is an attractive strategy to optimize the light harvesting and carrier separation of semiconductor photocatalysts. A self‐templating method of ion exchange is reported to synthesize an exquisite hollow cage‐structured Ag2S@CdS/ZnS that direct Z‐scheme heterojunction photocatalyst. On the ultrathin shell of the cage, Ag2S, CdS, and ZnS with Zn‐vacancies...
Because of the instability and Fenton reactivity of non‐precious metal nitrogen‐carbon based catalyst when processing the oxygen reduction reaction (ORR), seeking for electrocatalysts with highly efficient performance becomes very highly desired to speed up the commercialization of fuel cell. Herein, chromium (Cr)‐N4 electrocatalyst containing extraterrestrial S formed axial S1‐Cr1N4 bonds (S1Cr1...
Electrochemical nitrate reduction to ammonia (NRA) provides an efficient, sustainable approach to convert the nitrate pollutants into value‐added products, which is regarded as a promising alternative to the industrial Haber–Bosch process. Recent studies have shown that oxygen vacancies of oxide catalysts can adjust the adsorption energies of intermediates and affect their catalytic performance. Compared...
Surface strains are necessary to optimize the oxygen adsorption energy during the oxygen reduction reaction (ORR) in the four‐electron process, but the surface strains regulation for ORR in the two‐electron process to produce hydrogen peroxide (H2O2) is rarely studied. Herein, it is reported that the tensile strained B‐doped Ni nanoparticles on carbon support (Ni‐B@BNC) could enhance the adsorption...
Solar‐driven production of hydrogen peroxide (H2O2), as an important industrial chemical oxidant with an extensive range of applications, from oxygen reduction is a sustainable alternative to mainstream anthraquinone oxidation and direct hydrogenation of dioxygen methods. The efficiency of solar to hydrogen peroxide over semiconductor‐based photocatalysts is still largely limited by the narrow light...
Electrochemical sodium‐ion storage has come out as a promising technology for energy storage, where the development of electrode material that affords high volumetric capacity and long‐term cycling stability remains highly desired yet a challenge. Herein, Ti3C2Tx (MXene)‐based films are prepared by using sulfur (S) as the mediator to modulate the surface chemistry and microstructure, generating S‐doped...