Aarupherskind4053

The ASC device exhibited excellent capacity retention (94%) after 9000 cycles at 2 A g-1. Also, this device delivered a high energy density of 23.4 Wh kg-1 and a power density of 2103 W kg-1. Finally, several portable electronic devices were successfully tested using the obtained good energy and power density results from the ASC device for energy storage applications.Oral delivery of the protein drug insulin is not currently possible due to rapid degradation of the secondary structure in low pH conditions in the stomach and under the influence of digestive enzymes in the gastrointestinal tract. Effective oral delivery of insulin and other protein- or peptide-based drugs will, therefore, require encapsulation in a material or nanoparticle. Herein we investigate the ability of the lipid bicontinuous cubic phase formed by two lipids, monoolein (MO) and phytantriol (PT), to protect encapsulated insulin from degradation by the enzyme chymotrypsin, typically found in the small intestine. High encapsulation efficiency (>80%) was achieved in both lipid cubic phases with retention of the underlying cubic nanostructure. Release of insulin from the cubic matrix was shown to be diffusion-controlled; the release rate was dependent on the cubic nanostructure and consistent with measured diffusion coefficients for encapsulated insulin. Encapsulation was shown to significantly retard enzymatic degradation relative to that in water, with the protective effect lasting up to 2 h, exemplifying the potential of these materials to protect the encapsulated protein payload during oral delivery.In this work, we demonstrate the fabrication of Mo, W co-doped BiVO4/ZnO nanosphere (Mo, W BVO/ZnO NS) heterostructures using a simple solution dry-out method that uniformly embeds ZnO NSs in Mo, W BVO nanocrystals. Photoelectrochemical (PEC) examination confirmed that Mo, W BVO/ZnO NSs exhibit higher PEC performance than pure Mo, W BVO, and this improved performance of Mo, W BVO/ZnO NSs also depends on decreased ZnO NS size. Moreover, a layered ZnO/Mo, W BVO (ZnO film coated with Mo, W BVO layer) heterostructure was prepared using a simple physical piled method that exhibited far lower PEC performances than those of Mo, W BVO/ZnO NS heterostructures. read more These results clearly revealed that the formation of the Mo, W BVO/ZnO NS heterostructure could increase the charge carrier density and it possessed a much larger contact area. These improvements were favorable for the transfer and transport of photoexcited charge carriers. This work offers an effective strategy to fabricate heterostructures with effective charge separation by a simple solution dry-out method that is suitable for other heterostructure-engineered photoanodes in solar water-splitting applications.CuS materials exhibit excellent near infrared (NIR) photoabsorption and photothermal effect, but they are lack of magnetic resonance imaging (MRI) ability. Fe-based nanomaterials possess MRI capacity, but they usually exhibit poor NIR photoabsorption. In order to solve the above problems, we synthesize three kinds of CuxFeySz samples, including FeS2, CuFeS2 and Cu5FeS4 nanomaterials. With the Cu/Fe ratios increase from 0/1.0 to 1.0/1.0 and 5.0/1.0, the localized surface plasmon resonances (LSPRs) characteristic peaks shift to longer wavelength, and the photothermal transduction efficiencies go up from 24.4% to 36.6% and 45.9%. Thus, Cu5FeS4 is found to be the most excellent sample. Especially, Cu5FeS4 exhibits photothermal-enhanced Fenton effect, which can produce hydroxyl radical (·OH) under a wide pH range (e.g., pH = 5.4-7.4) to realize the chemodynamic effect. In addition, Cu5FeS4 can be employed as an efficient MRI contrast agent. When Cu5FeS4 dispersion is intravenously injected into the mouse, the tumor can be detected by MRI as well as thermal imaging, and eliminated through photothermal-enhanced chemodynamic effect. Therefore, Cu5FeS4 can be used as an efficient "one-for-all" type agent for MRI-guided photothermal-enhanced chemodynamic therapy of tumor.Due to huge volume expansion and poor electrical conductivity, the commercial application of the promising Germanium (Ge) anode is restrained in lithium ion battery (LIB) field. Generally, conductive metals can improve the electron mobility in Ge. In that way, whether active materials or conductive metals account for a higher proportion in the anode is controversial in this field and needs to be clarified urgently. Herein, three Ge-based anodes with different ratios in conductive Ag are fabricated by a facile melt spinning and one-step dealloying method. It is found that Ag nanoparticles embedded three-dimensional nanoporous Ge (Ag/np-Ge) electrode with high active material ratio exhibits the best cycling stability among tested samples, delivering a high capacity of 953 mAh g-1 after 100 cycles at a current density of 100 mA g-1 and an excellent reversible capacity of 522 mAh g-1 after 200 cycles even at the high current density of 1000 mA g-1. The enhanced cycling stability can be attributed to the synergistic effect of nanoporous network-like structure and embedded Ag nanoparticles. A dramatical increase in electrical conductivity and activity of Ge by doping of Ag is confirmed by density functional theory (DFT) calculations. The work provides us an idea to rationally design the three-dimensional structure of active materials assisting with a proper ratio of conductive metals, which may promote the development of promising Ge anodes for LIBs with excellent cycling stability.Online recycling has become an increasingly popular research hotspot. However, few studies have focused on its potential service functions such as online promotion and offline recycling. In this study, considering such service functions, four models, namely, the manufacturer recycling channel (Model A), recycler recycling channel (Model B), online channel recycling (Model C) and manufacturer's self-built platform + recycling channel (Model D), are established, and derived the corresponding profit functions of supply chain members. Game theory was utilized to optimize service quality control strategies and supply chain member profits within the different models. Using numerical simulation, we examined the influence of both the upper recycling incentive limit and market demand on the optimal recycling channel strategies and profits. When the upper limit of the recovery incentive amount λ∈(0,3), the actual price and service quality to consumers under the manufacturer's self-built platform + recycling channel (Model D) are better than other channels, and the optimal manufacturer and online platform profits initially increased and then decreased with increases in the recycling incentive upper limit.