Perfect Stability Research Articles

Electropolymerization of an Ultra-thin Film on bimetallic nanocomposite: enhanced performance, perfect stability for supercapacitors

Electropolymerization of an Ultra-thin Film on bimetallic nanocomposite: enhanced performance, perfect stability for supercapacitors

An unprecedented sensitive material for detecting trimethylamine derived from polyoxometalates @ bimetallic metal organic frameworks

Polyoxometalates (POMs) and metal organic frameworks (MOFs) have attracted increasing attention in the gas sensor field for the detection of volatile organic compounds. Herein, we present novel sensitive materials (PW12-NiO-ZnO hollow polyhedron) derived from POMs@bimetallic MOFs by using a one-step solvothermal approach. The micro-nano structure, compositions, and other chemical and physical properties of the samples were clarified through characterization such as XRD, SEM, TEM and XPS. Significantly, sensor based on PW12-NiO-ZnO hollow polyhedron presents a notable response value as high as 62.6 toward 100 ppm trimethylamine at 350℃, which is nearly 4.3 times that of pure ZnO. Moreover, we conducted other performance tests on the sensor to verify the high selectivity, good response/recovery properties and perfect long-term stability toward trimethylamine. Importantly, possible products on the surface of sensitive materials were analyzed by in situ diffuse reflectance infrared Fourier transform spectra (DRIFTS). In addition, these improved sensing performances is most benefiting from the incorporation of polyoxometalates and the p-n heterojunction between NiO and ZnO. As a pioneering study, this work provides an effective approach for designing diverse sensitive materials in the sensor applications.

Investigation of the intelligent anti-aging bitumen using microcapsule clean-product secreting waste cooking oil through polyacrylamide-gel in porous-shell structure

The aging of bitumen is an urgent problem in pavement engineering materials. The objective of this work was to fabricate an intelligent anti-aging bitumen using a clean microcapsule product that secretes waste cooking oil through polyacrylamide (PAM)-gel in a porous shell structure. The microcapsule had a composite shell with cross-linked hexamethoxymethylmelamine as a skeleton with a porous structure and gel PAM filled in pores as the channels of the liquid waste cooking oil as core material. Aged bitumen was mixed with various microcapsules, and their physical and chemical properties were investigated. The testing results indicated that shells had successfully microencapsulated the oily rejuvenator without defects and damages. FT-IR results showed that the HMMM had been cross-linked and PAM also deposited in shells. SEM morphology showed that PAM was removed from the shell material after alcohol elution, and the shell still kept the spherical shape with a porous structure. Penetration experiments have demonstrated that PAM in the porous structure of the shell material can serve as a secretion channel for core material. Microcapsules had perfect thermal stability and homogeneous dispersion in bitumen, and there was no interface separation phenomenon. The test results showed that the bitumen/microcapsules samples gradually became softer and increased viscosity based on the viscosity changes, softening point, and penetration parameters. The tensile test also proved that adding microcapsules reduced the tensile strength of aged bitumen and increased the tensile elongation with the extension of time, which was entirely attributed to the action of the secreted rejuvenator molecules. The complex shear modulus (G*) values of bitumen/microcapsules samples gradually decreased with anti-aging time increasing at the same temperature. The phase angle values (δ) show that its value gradually decreases after the anti-aging process, indicating that the elastic composition of bitumen increases.

One-Pot synthesis of amino acid-based functional hyper-crosslinked ionic polymers as heterogeneous catalysts for efficient fixation of CO2 with epoxides

The exploitation of multifunctional heterogeneous catalysts for efficient CO2 fixation has been an urgent task in recent years. Herein, three novel amino acid-based hyper-crosslinked ionic polymers (HIPs) with different pendant groups have been constructed via simultaneously Friedel-Crafts alkylation and quaternization reactions in a one-pot manner. The obtained HIPs showed a luxuriant meso/microporous morphology and perfect thermal and chemical stability that are of great importance for practical application. Furthermore, they also showed an excellent CO2 uptake capacity up to 25.17 cm3/g that benefits from N-rich porphyrin units and the amino pendant in the polymer skeleton. Meanwhile, the obtained amino acid-based HIPs can efficiently catalyze the cycloaddition of various epoxides with CO2 under mild conditions without solvents, cocatalysts, and transition metals. Among them, the HIP-His-1 shows the best performance to achieve 99 % product yield with 99 % selectivity for pure CO2 and can also convert diluted CO2 (15 %CO2 and 85 %N2) with satisfactory performance. Moreover, it also shows an exciting reusability which can maintain 91 % of its catalytic yield and 99 % of the selectivity after 5 cycles. The cooperative effects of hydrogen-bond donors (HBDs) and nucleophilic anions during the catalytic process are proposed based on theoretical calculations and this will provide new inspiration for the design and application of HIPs on CO2 conversion.

A five-gene prognosis model based on lysine β-hydroxybutyrylation site genes to predict the survival and therapy response in pancreatic adenocarcinoma

BackgroundPancreatic adenocarcinoma (PAAD) is one of the most malignancy diseases. Lysine β-hydroxybutyrylation (Kbhb) has been reported to involve various metabolism and cancer progression. MethodsData from online databases (TCGA and GEO) were retrieved for the selection of differential expressed Kbhb site genes (DTRGs). Univariate cox and LASSO analysis were performed to identify the prognostic DTRGs. Based on the optimal DTRGs, a prognostic risk score model was established. Kaplan-Meier and Receiver operator characteristic analysis were conducted to evaluate the predicting ability of the prognosis model. Generated with clinical data, independent analysis and nomogram model were performed. Finally, the differences of survival, immune cell levels, immunotherapy response, drug sensitivity between high- and low-risk groups were explored. ResultsA total of 63 DTRGs were identified in PAAD, and these genes were related to cell division and apoptosis biological functions. Through univariate cox regression and LASSO analysis, 30 DTRGs were selected to be related to prognosis and five (KRT18, ANLN, ECT2, RBM5, and RBM6) were identified as the optimal DTRGs in PAAD. Based on the five optimal DTRGs, a prognostic risk score model was constructed, with promising predictive ability in PAAD survival (AUC >0.70). High-risk group showed lower survival rate (P < 0.05). Moreover, based on the risk score, a nomogram model was also established, which possessed perfect stability. Finally, lower risk score was related to higher immune cell levels, indicating an immune activation in low-risk status, which maybe the reason for the better survival in low-risk group. Furthermore, the immunotherapy response and drug sensitivity were all higher than that in low-risk groups (P < 0.05). ConclusionA five-gene prognosis risk model which exhibit promising predictive ability in survival is constructed for patients with PAAD.

Biomass betulin-based porous aromatic frameworks nanomicrospheres as adsorbents for reversible capture of iodine

Betulin with a modifiable hydroxyl group and a rigid backbone is a kind of natural triterpene product that extracted from white barked birch bark with up to 30 % of its dry weight. Herin, we prepared a series of betulin-based porous aromatic frameworks (BEPAFs) nanomicrospheres by [Rh(nbd)Cl]2 polymerization or Sonogashira-Hagihara coupling reaction for iodine vapor capture and adsorption. The resulting BEPAFs nanomicrospheres presented perfect thermal stability and high specific surface areas that up to 324.6 m2 g−1, 506.3 m2 g−1 and 320.5 m2 g−1 for BEPAF-1, BEPAF-2 and BEPAF-3, respectively. Based on the above characteristics, the BEPFAs nanomicrospheres showed an excellent iodine capture performance with the volatile iodine capture ability reached 3.79 g g−1 and iodine adsorption in cyclohexane solution up to 389.9 mg g−1. The iodine capture behavior is consistent with the pseudo-second-order model, indicating that the iodine adsorption process of BEPAFs microspheres belongs to multilayer heterogeneous surface chemical adsorption. Furthermore, the BEPFAs nanomicrospheres could maintained 88.26 % of the absorption capacity after four cycles that endow them a great potential in practical application. This research provides a facile synthesis of biomass porous aromatic framework nanomicrospheres adsorbents based on the natural product.

Polyaniline/Graphene oxide composite as an Ultra-Sensitive humidity sensor

This paper investigated the humidity-sensing response of polyaniline/Graphene oxide (PGO) composites. Graphene oxide (GO) was synthesised using the improvised hummers method, and polyaniline (PANI) was synthesised using the chemical in-situ polymerisation process. By adding different weights per cent (wt%) of Graphene oxide (GO) to the polymer matrix, PGO composites were prepared. Structural and morphological properties of GO were confirmed by XRD, RAMAN, FTIR, SEM, EDX, and HR-TEM (elementary mapping) characterisations. The XRD, FTIR SEM and EDX proficiencies were employed to characterise the PGO composites. To experience the humidity response performance, the film of PANI, GO, and PGO samples was groomed by wedging the sample on an IDT substrate using a drop casting technique. Among the samples, the PGO-3 composite (polyaniline/Graphene oxide 15 wt%) depicted a maximum sensing response (SH) of 93.4 % with a dynamic timing behaviour of 4 s and 7 s. The Nobel characters, such as low accurate Sensing response, fewer detection limits (LOD), negligible hysteresis and perfect stability, were observed in the PGO-3 composite. The physical properties such as porosity, water content, and degree of swelling have been outstandingly enhanced in the PGO-3 composite compared to PANI and GO. The mechanism for sensing the PGO-3 composites was deliberately explained based on establishing superficial physisorption, chemisorption layers, and later capillary condensation.

Enhancing Na-storage property of Na3V2(PO4)3 via porous structure Design：From the perspective of carbon source optimization

The inborn low electronic conductivity of NASCION-type Na3V2(PO4)3 (NVP) restricts its widespread commercial applications. Traditionally carboreduction method could add a thin carbon-layer on the surface of the particles and enhance its conductivity to some extent, while the underlying mechanism about the reducing agent categories is blurred. In this paper, the mechanism of various frequently-selected carbon sources in the carbothermal process has been explored in detail, and the Na-storage property of NVP has been optimized focusing on the categories of the carbon sources. Owning to the acid etching effect of citric acid, carbon-coated NVP (NVP@C) particles synthesized via adopting citric acid as carbon source display tiny particle size as well as porous Na-storage structure. The construction of porous Na-storing structure, coupled with evenly carbon-coating, upgrades the dynamics of ion and electron transportation effectively, enhancing its Na-storing performances. The optimal experiments indicates that NVP@C prepared with citric acid with the overdose coefficient of 125 % (CR125%-NVP) exhibits the optimal electrochemical performances. In detail, CR125%-NVP showcased the initial discharging specific capacities of 116.2 and 101.3 mAh g−1 at 0.1C and 10 C, respectively. It also performed perfect cycle stability, with a capacity retention of 88.9 % after 500 cycles at 10 C rate.

Highly Efficient and Thermally Stable Broadband NIR Phosphors with Superlong Afterglow Performance and their Multifunctional Applications

AbstractNear‐infrared (NIR) phosphor‐converted light‐emitting diodes (pc‐LEDs) are considered as promising next‐generation light sources for optoelectronic and biomedical applications. Nevertheless, NIR phosphors with large bandwidths, long emission peaks, high external quantum efficiencies (EQEs) and valuable thermal stabilities are challenging to develop. Herein, this study reports a novel gallium germanate host, Ga3Al3Ge2O13 (GAGO), with a large bandgap and rigid host lattice for Cr3+ ion doping. The blue LED excitable GAGO:0.012Cr3+ phosphor can produce broadband NIR emission with a maximum intensity at 816 nm and a full‐width at half‐maximum (FWHM) of 187 nm. Notably, the phosphor also exhibits an excellent EQE of 35.8% and perfect thermal stability (I423 K/I298 K = 67.4%). Moreover, an attractive NIR afterglow duration of more than 24 h is achieved in the GAGO:0.004Cr3+ phosphor. The type and origin of the traps are discussed, and a possible long persistent luminescent (LPL) mechanism is proposed. Finally, an NIR pc‐LED based on a GAGO:0.012Cr3+ phosphor is fabricated. The results demonstrate that the obtained phosphors show great potential for use in night vision, nondestructive detection, bioimaging and information encryption. This study provides new insight into the development of broadband NIR luminescent materials with high efficiency, good thermal stability and extraordinary afterglow performance.

Tri‐reforming of Methane over a Hydroxyapatite Supported Nickel Catalyst

AbstractFor the first time, a catalyst containing 5 wt. % Ni supported on a hydroxyapatite support (HAP) has been synthesized and evaluated in tri‐reforming of methane (TRM) for synthetic gas (syngas) production. Nickel nanoparticles could be easily formed on HAP surface by using the conventional incipient wetness impregnation technique. In TRM, under unfavorable reaction conditions from the thermodynamic point of view (e. g. medium reforming temperature of 700–800 °C, low steam‐to‐carbon ratio, etc.), this catalyst showed high methane conversion (up to 90 %), however, some deactivations took place. The latter could be explained by both the thermal sintering of nickel nanoparticles and the solid carbon formation. The impact of the main operational parameters has been studied. Increasing the reaction temperature, the molar ratios of oxygen‐to‐carbon and steam‐to‐carbon are favorable for the methane conversion and mostly for the stability of the catalyst. High methane conversion of ca. 90 % with a perfect catalytic stability during 300 hours‐on‐stream could be achieved at 800 °C and 1.4 bar, using a mixture containing low ratio of oxidant‐to‐carbon (molar ratio of CH4/CO2/H2O/O2/N2=1.0/0.67/0.9/0.1/0). These results offer the opportunity to further design an optimal Ni/HAP catalyst by improving metal‐support interaction and downsizing nickel nanoparticles.

Electrochemical sensor based on PEDOT/CNTs-graphene oxide for simultaneous determination of hazardous hydroquinone, catechol, and nitrite in real water samples

Hydroquinone (HQ), catechol (CC) and nitrite (NT) are considered aquatic environmental pollutants. They are highly toxic, harm humans’ health, and damage the environment. Thus, in the present work we introduce a simple and efficient electrochemical sensor for determination of HQ, CC, and NT simultaneously in wastewater sample. The sensor is fabricated by modifying the surface of a glassy carbon electrode (GCE) by two successive thin films from poly(3,4-ethylenedioxythiophene) (PEDOT) and a mixture of carbon nanotubes-graphene oxide (CNT-GRO). Under optimized conditions the HQ, CC, and NT are successfully detected simultaneously in wastewater sample with changing their concentrations in the ranges (0.04 → 100 µM), (0.01 → 100 µM) and (0.05 → 120 µM), the detection limits are 8.5 nM, 3.8 nM and 6.1 nM, respectively. Good potential peak separations: 117 mV and 585 mV are obtained between the HQ-CC, and CC-NT. The sensor has an excellent catalytic capability toward the oxidation of HQ, CC, and NT due to good synergism between its composite components: PEDOT, GRO and CNTs. The features of the sensor are large active surface area, good electrical conductivity, perfect storage stability, good reproducibility, anti-interference capability and accepted recovery rate for HQ, CC, and NT determination in wastewater sample.

Interaction of Skating Agility Tests and Postural Stability in Hockey Players

Study purpose. In this work, we point out the interaction of complex postural stability (CPS) and skating agility tests among pupils in the hockey club HK Nové Zámky. We determined postural stability using the SEBT and agility with skating tests. We expected a significant interaction between performance in skating agility tests and CPS for both standing legs, which was most closely identified with the eight-item SEBT test. Materials and methods. The level of CPS was characterized by descriptive statistics. Laterality between right and left standing leg was assessed by t-test and Cohen’s “d”. The relationships between CPS and skating agility tests were determined by Pearson’s correlation coefficient “r”. Predictors were selected by stepwise regression. Statistical significance of differences and relationships was assessed at the 5% significance level. Results. The results showed no differences in the laterality of the CPS between the right and left standing leg. Correlation analysis demonstrated the interactions of the left and right standing leg with all skating agility tests. Stepwise regression was used to select the tests that were most identified with the performance on the eight-item SEBT test in terms of their skating expression. The Illinois test has the most significant informational power for CPS. Conclusions. The presence of positive interactions between skating agility and CPS in hockey players point to the importance of a balanced and stable stance of both legs in all directions. The perfect balance and stability of hockey players eliminates the fluctuations caused by skating movement in all directions and facilitates their execution without major changes in dynamic performance. The chance of shortening the activation time of the muscle chains involved in the technique of performing the test also increases significantly, or in the very structure of technique – the economics of ice hockey players’ skating.

Metal-organic-framework-derived Fe, Co, N-tri-dopped porous carbon as oxygen electrocatalysts for Zn-air batteries

To commercialize the rechargeable zinc-air (Zn-air) battery, it is desirable but challenging to design highly active, low-cost, stable, and earth-rich bifunctional electrocatalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) to replace rare, expensive, and unstable noble-metal electrocatalysts. Herein, two MOFs are combined under electrostatic interaction and pressure by the way of Ball milling. Then, after post-processing including calcination, acid pickling, and N doping, the bimetal (Fe and Co) and N triple-doped porous carbon electrocatalyst (MIL/ZIF-4-700 °C-NH3) is prepared. Noteworthily, the MIL/ZIF-4-700 °C-NH3 has bimetallic active sites, high contents of pyridine N and graphite N, large surface area, mesoporous structure, and conductive carbon skeletons, which decide the excellent ORR performance. For ORR, the half-wave potential (E1/2 = 0.902 V vs. RHE) of MIL/ZIF-4-700 °C-NH3 is 27 mV higher than that of 20 wt% Pt/C (E1/2 = 0.875 vs. RHE). And the catalyst has also excellent methanol tolerance and stability. The Zn-air battery with MIL/ZIF-4-700 °C-NH3 as cathode catalyst has higher peak power density (176.5 mW cm−2) than that with 20 wt% Pt/C (141.8 mW cm−2) and 20 wt% Pt/C + RuO2 (94.4 mW cm−2) as cathode catalyst. Meanwhile, the Zn-air battery with MIL/ZIF-4-700 °C-NH3 as cathode catalyst exhibits perfect charge-discharge stability (longer than 540 h).

From Classroom to Portfolio: Examining the Link Between Financial Education, Financial Literacy, and Risk-taking

This paper examines a panel dataset spanning the years 2010 to 2020 across ten countries, investigating the intricate relationship between financial assets and financial literacy. Two prominent trends surface:First, an intriguing inverse association is observed between higher rates of tertiary education attainment within a nation's population and individual financial assets. Second, an upsurge in the employment rate among individuals aged 25-64 corresponds with a decline in individual financial assets. These findings defy conventional research and call for comprehensive exploration within the framework of economic principles and broader economic awareness. As educational attainment and employment rates rise, heightened labor market competition, especially among individuals holding undergraduate or advanced degrees, leads to relatively reduced wages for those with similar qualifications, impacting their financial assets. Furthermore, this study corroborates that while increased income aligns with greater risk aversion, risk preferences display dynamic fluctuations over time and in response to personal experiences, contradicting neoclassical economic theory's concept of perfect stability. These findings underscore the necessity for a nuanced understanding of financial behavior. In summary, this research challenges established assumptions concerning the determinants of individual financial assets, highlighting the significance of multifaceted socio-economic variables and evolving risk perceptions in comprehending contemporary financial behaviors.

Fabrication of thin(∼2 μm) pure Ni and Pd–Ni alloy composite membranes by the organic-inorganic activation method for hydrogen separation

In this study, we have reported a new strategy to prepare metal/ceramic membranes that can be used as an alternative to conventional high-cost palladium membranes. For the first time, a uniform Ni layer was deposited using the organic-inorganic activation method via the ELP technique. Although, alloying Pd–Ni resulted in a defect-free thin membrane layer (2 μm). The H2 permeation flux of the composite membrane was 1.43 × 10−2 mol m−2 s−1 at 450 °C and TMP of 100 kPa with infinite H2/N2 selectivity. Stage cut effect as a function of transmembrane pressure (TMP) was assessed in binary mixtures at 450 °C. The prepared composite membrane indicated perfect long-time permeance stability for 145 h at 450 °C and TMP of 100–300 kPa. The results showed that solution-diffusion is the dominant mechanism in the hydrogen transport through the composite membranes.

In-situ synthesis of conductive Fe-MOFs on the carbon nanotubes/carbon cloth as high-performance catalyst for alkaline oxygen evolution

In the electrolysis of water, the efficiency is heavily constrained by the slow kinetic process of the oxygen evolution reaction (OER) at the anode. Herein, by a simple hydrothermal method for the in-situ growth of Fe3(HHTP)2 on the open three-dimensional nanostructured substrate, Co-anchored carbon nanotubes/carbon cloth (Co/CNT/CC), Fe3(HHTP)2@Co/CNT/CC was prepared and acted as an OER electrocatalyst. The combination of carbon nanotubes (CNTs) and carbon cloth not only enhanced the substrate conductivity, but also facilitated the uniform loading of Fe3(HHTP)2. The in-situ growth, on the other hand, allowed the Fe3(HHTP)2 to connect with the conductive substrate tightly, thus enhancing the stability of the interfacial contact, improving the electron transfer efficiency and providing enough catalytically active sites. In addition, the construction of self-supported electrodes could effectively avoid the use of binders and improve the stability of the composites during electrolysis. The Fe3(HHTP)2@Co/CNT/CC displayed excellent properties in alkaline electrolytes as an efficient OER catalyst, achieving a current density of 50 mA cm−2 at an overpotential of only 1.60 V and perfect stability in long-term tests. Herein, the present work provides a rational tactics for developing self-supporting electrodes with plentiful active sites and high stability to enhance the electrochemical efficiency of water splitting.

Crystal structure, Hirshfeld surface analysis, optical properties and stability of organic-inorganic compound (C6H5CH2NH3)2(CH3CH3NH2)3Bi2Br11

A novel bismuth-based zero-dimensional organic-inorganic hybrid material (C6H5CH2NH3)2(CH3CH3NH2)3Bi2Br11 was synthesized by a hydrothermal method. The crystal structure, intermolecular interactions, chemical groups, chemical bond characterization, optical and thermal stability of the sample were systematically investigated by single crystal X-ray diffraction, powder X-ray diffraction, Hirshfeld surface analysis, field scanning electron microscopy, Fourier transform infrared spectrometer, Raman spectra, thermogravimetric analysis, and Ultraviolet–visible diffuse reflectance spectra. The results indicated that the (C6H5CH2NH3)2(CH3CH3NH2)3Bi2Br11 crystal displayed a triclinic crystal system with a P-1 space group at room temperature with a = 8.5290(4) Å, b = 14.2484(10) Å, c = 18.9386(10) Å, α = 94.418(5) °, β = 102.260(4) °, γ = 106.595(5) °, V = 2131.9(2) Å3, Z = 2, R1 = 0.0936, wR2 = 0.1536. The compound displayed typical zero-dimensional consisting of two benzylamine organic [C6H5CH2NH3]+ cations, three dimethylamine organic [CH3CH3NH2]+ cations and a corner-sharing dimer unit [Bi2Br11]5–. Infrared and Raman vibrational study indicates the presence of [CH3CH3NH2]+. The 2D fingerprint plot of Hirshfeld surface analysis shows that H⋯Br/Br⋯H (56.8 %) and H⋯H (31.4 %) are major contributions to the intermolecular contact of (C6H5CH2NH3)2(CH3CH3NH2)3Bi2Br11. The sample presented relatively perfect thermal stability up to 240 °C and a wide band gap of about 2.75 eV. It provides some reference value for exploring organic-inorganic hybrid materials with low toxicity and high thermal stability.

Identification of disulfidptosis-related subtypes, characterization of tumor microenvironment infiltration, and development of a prognosis model in breast cancer.

Breast cancer (BC) is now the most common type of cancer in women. Disulfidptosis is a new regulation of cell death (RCD). RCD dysregulation is causally linked to cancer. However, the comprehensive relationship between disulfidptosis and BC remains unknown. This study aimed to explore the predictive value of disulfidptosis-related genes (DRGs) in BC and their relationship with the TME. This study obtained 11 disulfidptosis genes (DGs) from previous research by Gan etal. RNA sequencing data of BC were downloaded from the Cancer Genome Atlas (TCGA) and Gene Expression Omnibus database (GEO) databases. First, we examined the effect of DG gene mutations and copy number changes on the overall survival of breast cancer samples. We then used the expression profile data of 11 DGs and survival data for consensus clustering, and BC patients were divided into two clusters. Survival analysis, gene set variation analysis (GSVA) and ss GSEA were used to compare the differences between them. Subsequently, DRGs were identified between the clusters used to perform Cox regression and least absolute shrinkage and selection operator regression (LASSO) analyses to construct a prognosis model. Finally, the immune cell infiltration pattern, immunotherapy response, and drug sensitivity of the two subtypes were analyzed. CCK-8 and a colony assay obtained by knocking down genes and gene sequencing were used to validate the model. Two DG clusters were identified based on the expression of 11DGs. Then, 225 DRGs were identified between them. RS, composed of six genes, showed a significant relationship with survival, immune cell infiltration, clinical characteristics, immune checkpoints, immunotherapy response, and drug sensitivity. Low-RS shows a better prognosis and higher immunotherapy response than high-RS. A nomogram with perfect stability constructed using signature and clinical characteristics can predict the survival of each patient. CCK-8 and colony assay obtained by knocking down genes have demonstrated that the knockdown of high-risk genes in the RS model significantly inhibited cell proliferation. This study elucidates the potential relationship between disulfidptosis-related genes and breast cancer and provides new guidance for treating breast cancer.

Adsorption property and mechanism of vanadium(V) by supported bifunctionalized ionic liquid

This study aims to investigate the adsorption behavior of supported bifunctionalized ionic liquids (SBILs) polystyrene [1-butyl-3-methylimidazolium][bis(2,4,4-trimethylpentyl)phosphinate] (PS[C4mim][C272]) for vanadium(V). PS[C4mim][C272] was synthesized through anion exchange using [PS][C4mim][Cl] and bis(2,4,4-trimethylpentyl) phosphine acid (Cyanex272) as precursors. The prepared SBILs were characterized by Fourier transform infrared (FTIR), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) to illustrate the successful loading of [C272]− onto SBILs. The results demonstrate that PS[C4mim][C272] adsorb V(V) by ionic conjugation. Under the preferred adsorption conditions, the equilibrium adsorption capacity of PS[C4mim][C272] reached 303.36 mg/g. The adsorption behavior of PS[C4mim][C272] for V(V) is more consistent with the Langmuir isotherm model, indicating that V(V) is adsorbed as monolayer. The adsorption process of PS[C4mim][C272] is consistent with the pseudo-second-order kinetic adsorption model, implying that the adsorption process is mainly chemical adsorption. Thermodynamics showed that the adsorption process of PS[C4mim][C272] was endothermic and spontaneous. The desorption of loaded V(V) and regeneration of PS[C4mim][C272] can be accomplished using 3 mol/L NH3·H2O solution one step. After 10 cycles, the adsorption capacity of PS[C4mim][C272] remains 96.58% of the initial value, implying the perfect adsorption stability of PS[C4mim][C272]. Meanwhile, PS[C4mim][C272] could effectively separate vanadium(V) from Fe(III) and Al(III) ions.

Study on the hydrogen evolution performance of RuNi/TiO2-oxMWCNT catalyst in alkaline media

Hydrogen, as a clean and pollution-free energy with high calorific value, is one of the best alternatives to fossil fuels. Hydrogen evolution reaction (HER), as a half reaction of electrochemical water splitting, has also received extensive attention. At present, the development of low-cost and high-performance hydrogen evolution catalysts still faces enormous challenges. In this work, we synthesized a series of RuNi/TiO2-oxMWCNT catalysts with different Ru and Ni ratio. After optimizing the composition and proportion, RuNi/TiO2-oxMWCNT with Ru:Ni=4:6 has the optimal hydrogen evolution performance. High HER performance of extremely low 14.8 mV overpotential at 10 mA·cm−2 and 38.4 mV·dec−1 Tafel slope with perfect stability is achieved, which is superior to most reported ruthenium-based catalysts and even commercial Pt/C. XPS and UPS indicates that there is a metal synergistic effect of Ru and Ni and a strong SMSI between Ru and TiO2 in the RuNi/TiO2-oxMWCNT catalyst, which helps to improve hydrogen evolution performance. This study provides a pathway for the rational design of multi-component nanostructured catalysts for HER.