Rechargeable aqueous zinc-ion batteries are highly desirable for grid-scale applications due to their low cost and high safety; however, the poor cycling stability hinders their widespread application. Herein, a highly durable zinc-ion battery system with a NaVO·1.63HO nanowire cathode and an aqueous Zn(CFSO) electrolyte has been developed. The NaVO·1.63HO nanowires deliver a high specific capacity of 352 mAh g at 50 mA g and exhibit a capacity retention of 90% over 6000 cycles at 5000 mA g, which represents the best cycling performance compared with all previous reports. In contrast, the NaVO nanowires maintain only 17% of the initial capacity after 4000 cycles at 5000 mA g. A single-nanowire-based zinc-ion battery is assembled, which reveals the intrinsic Zn storage mechanism at nanoscale. The remarkable electrochemical performance especially the long-term cycling stability makes NaVO·1.63HO a promising cathode for a low-cost and safe aqueous zinc-ion battery.

The association between non-steroidal anti-inflammatory drugs (NSAIDs) use and breast cancer has remained controversial. Therefore, an overall quantitative estimate of the association needs to be studied. A systematic review and meta-analysis was executed to explore the pooled estimate for relative risk (RR) and 95% confidence interval (CI) using random or fixed effects models based on heterogeneity analysis. Overall 26 studies with 528,705 participants were included. The RR of NSAIDs use and the incidence of breast cancer was 0.94 (95% CI: 0.88-1.00) with random effects model. A slight reduction of breast cancer by taking aspirin and ibuprofen was both observed with pooled RR of 0.91 (95% CI: 0.83-0.98) and 0.81 (95% CI: 0.67-0.97), respectively. Our results indicate that NSAIDs use is associated with a slight decrease for the development of breast cancer with a marginally statistical significant difference. The associations are slightly more obvious in aspirin and ibuprofen use.

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Our results indicate that both the total intake of vitamin A and retinol could reduce breast cancer risk. However, associations between other vitamins and breast cancer seem to be limited.

Water splitting using electricity generated by wind or solar power has been proposed as an effective strategy for sustainable hydrogen production. [1][2][3] Among the family of hydrogen In the hydrogen evolution reaction (HER), energy-level matching is a prerequisite for excellent electrocatalytic activity. Conventional strategies such as chemical doping and the incorporation of defects underscore the complicated process of controlling the doping species and the defect concentration, which obstructs the understanding of the function of band structure in HER catalysis. Accordingly, 2H-MoS 2 and 1T-MoS 2 are used to create electrocatalytic nanodevices to address the function of band structure in HER catalysis. Interestingly, it is found that the 2H-MoS 2 with modulated Fermi level under the application of a vertical electric field exhibits excellent electrocatalytic activity (as evidenced by an overpotential of 74 mV at 10 mA cm −2 and a Tafel slope of 99 mV per decade), which is superior to 1T-MoS 2 . This unexpected excellent HER performance is ascribed to the fact that electrons are injected into the conduction band under the condition of back-gate voltage, which leads to the increased Fermi level of 2H-MoS 2 and a shorter Debye screen length. Hence, the required energy to drive electrons from the electrocatalyst surface to reactant will decrease, which activates the 2H-MoS 2 thermodynamically.