Local hypoxia in tumors results in undesirable impediments for the efficiencies of oxygen‐dependent chemical and photodynamic therapy (PDT). Herein, a versatile oxygen‐generating and pH‐responsive nanoplatform is developed by loading MnO2 nanodots onto the nanosystem that encapsulates g‐C3N4 and doxorubicin hydrochloride to overcome the hypoxia‐caused resistance in cancer therapy. The loaded MnO2 nanodots can react with endogenous acidic H2O2 to elevate the dissolved oxygen concentration, leading to considerably enhanced cancer therapy efficacy. As such, the as‐prepared nanoplatform with excellent dispersibility and satisfactory biocompatibility can sustainably increase the oxygen concentration and rapidly release the encapsulated drugs in acid H2O2 environment. In vitro cytotoxicity experiments show a higher therapy effect by the designed nanoplatform, when compared to therapy without MnO2 nanodots under hypoxia condition, or chemical and photodynamic therapy alone with the presence of MnO2 nanodots. In vivo experiments also demonstrate that 4T1 tumors can be very efficiently eliminated by the designed nanoplatform under light irradiation. These results highlight that the MnO2 nanodots‐based nanoplatform is promising for elevating the oxygen level in tumor microenvironments to overcome hypoxia limitations for high‐performance cancer therapy.

By rational in situ crystallization, HKUST-1 embedded in a chitosan film exhibits reduced cytotoxicity and restricted copper release, inducing enhanced infectious wound therapy.

The selective adsorption by suitable substrate materials is considered one of the most economical methods. In this work, an all-inorganic bimetallic Mo-Fe-S cluster is facilely achieved through in situ chemical fixation of tetrathiomolybdate (TTM) on FeO nanoparticles (NPs) at room temperature (donated as FeMoS NPs). The bimetallic building blocks on the obtained FeMoS NPs possess a monovacancy species of sulfur, endowing FeMoS NPs with a selectivity order of Zn, Mn, Ni < Cd ≪ Cu < Pb for metal-ion adsorption, a novel application for the Mo-Fe-S clusters. Particularly, with the highest selectivity for Pb (K ≈ 10), which is about 3 × 10-1 × 10 times higher than those for other ions and has exceeded that of a series of outstanding sorbents reported for Pb, FeMoS NPs can efficiently reduce the concentration of Pb from ∼10 ppm to an extremely low level of ∼1 ppb. This facile and rational fabrication of the Mo-Fe-S cluster with FeO represents a feasible approach to cheaply develop novel and efficient materials for the selective removal of lead(II).

Although ZIF-based adsorbents are promising for environmental remediation, their performance is limited by their large crystal size, intrinsic fragility, and poor processability and reusability. To this end, in this work, highly dispersed and small sized (14.95 nm) metal−organic frameworks (MOFs), via the restriction of overgrowth and agglomeration on carbon nitride (C 3 N 4 ) nanosheets, are integrated into agar aerogel, forming a flexible and efficient aerogel absorbent with photocatalytic activity. This separationfree hybrid aerogel mantaining the crystal structure of zeolitic imidazolate framework (ZIF-8) with smaller size exhibits a 1.44 times greater adsorption capacity for dye than that of pristine bulk ZIF-8. Most importantly, the introduction of C 3 N 4 nanosheets not only regulates the growth of ZIF-8 crystals but also enables the hybdrid aerogel with stable reusability throughout five consecutive adsorption−degradation cycles, obtained via solar irradiation. This ecofriendly, regeneration technology provides a convenient and sustainable approach to reduce the cost and eliminate the use of hazardous substances for environmental remediation. Dramatically, for practical use under sunlight, attributed to the photocatalysis effect of the uniquely designed adsorbent, the active adsorption sites of the aerogel are continuously provided, resulting in enhanced dye removal ability. Therefore, this work establishes an innovative, low-cost, convenient, solar-triggered, sustainable solution for the management of water contamination by a MOF-based aerogel decontaminant.

This article determines the quality factors which improve the satisfaction of logistics services, and the specific evaluation items that customers value. Moreover, this study verifies the moderating effect of consumers on the perceived importance of last-mile logistics services, and its impact on logistics service satisfaction. Through a literature review, the conceptual model is determined, and measurement scales are developed. Furthermore, we collect data through online surveys and employ structural equation modeling, hierarchical regression analysis, and importance–performance analysis methods in order to analyze the collected data, and to test the research hypotheses. The findings of this study are as follows. First, the qualities of personal contact, timeliness, and empathy in the fresh food e-commerce logistics service quality evaluation system have a significant positive impact on the fresh food e-commerce logistics service consumer satisfaction, but the delivery quality and information quality are not significant. Second, consumers’ perceived importance of last-mile logistics services has a positive and significant impact on the consumer satisfaction of fresh food e-commerce logistics services. Moreover, as a moderating variable, its moderating effect has limitations: it only affects the relationship between information quality, timeliness quality, empathy quality, and consumer satisfaction. Finally, in the three evaluation dimensions of information quality, timeliness quality, and empathy quality, specific items that need to be further improved are identified. This study enriches and supplements the empirical research in the field of fresh food e-commerce logistics, and provides academic literature with a reference value for fresh food e-commerce logistics enterprises.