SEPARATION AND PURIFICATION TECHNOLOGY
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2025
·
IF 9
Alireza Khataee,Samira Jabbarvand Behrouz,Mohadeseh Ashrafian Nansa,Yasin Orooji
Expanding composite nanofiltration membranes with high permeability and antifouling properties for water and wastewater treatment are in the spotlight of researchers. Exploring new inorganic additives with high miscibility in the polymeric membranes could help the development of high-performance composite membranes. In this research, we synthesized the titanium germanium carbide (Ti 3 GeC 2 ) MAX phase using the reactive sintering technique. X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), Fourier-transform infrared spectroscopy, and zeta potential analyses were employed to characterize the Ti 3 GeC 2 MAX phase. These techniques revealed that negatively charged Ti 3 GeC 2 has a hexagonal crystal structure with a morphology of stacked nanolayers. Various amounts of Ti 3 GeC 2 (0–0.75 wt%) were doped into polyethersulfone (PES) membranes using the phase inversion process. SEM, atomic force microscopy (AFM), viscosity, porosity, pore size, and contact angle techniques, along with leaching test, were carried out to study the Ti 3 GeC 2 impact on the properties of PES membranes. The pure water flux (PWF) of 65.19 L/m 2 h and the flux recovery ratio (FRR) of 86.97 % were achieved for the selected 0.25 wt% MAX composite membrane, which is higher than the PWF of 31.80 L/m 2 h and FRR of 69.98 % for the bare PES membrane. The mentioned composite membrane could retain more than 99 % of Direct black 38, Congo red, and Disperse yellow 54 dye solutions, together with an acceptable retention of 76.2 % for Basic violet 1, 69.3 % for Alizarin red S, and 65.4 % for cefixime solutions, respectively. The outcomes highlight the potential of the Ti 3 GeC 2 /PES composite membrane for treating various dyes-contaminated water/wastewater.
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DIAMOND AND RELATED MATERIALS
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2025
·
IF 5.1
Qi Hu,Chenhao Xu,Yulong Hua,Cunkang Qi,Jing Zhang,Yuemin Wang,Chengchun Tang
To explore the improvement of microwave absorption performance of boron nitride nanosheets (BNNSs) after doping with graphene quantum dots (GQDs). Herein, a series of point-layer structure BNNSs supported by GQDs composite absorbing materials were designed and prepared. The influence of the substrate on the wave absorption intensity was investigated by loading the same GQDs with BNNSs of different scales. Among them, the BG-1400 with BNNSs-1400 as the substrate and GQDs as the load has the best microwave absorption performance. Its minimum reflection loss ( RL min ) reaches −60.3 dB and the effective absorption frequency band is 8.5 GHz. In order to further analyze the factors influencing the effective absorption frequency bands of BNNSs/GQDs composites, BNG-1400 and BFG-1400 were prepared by loading N-GQDs and F-GQDs respectively on the BNNSs-1400 substrate, and their RL min and effective absorption frequency bands were -57.3 dB, −57.7 dB and 11.3 GHz, 13.4 GHz, respectively. The effective absorption frequency bands of BNG-1400 and BFG-1400 have been significantly improved compared with BG-1400.This indicates that the substrate size of the BNNSs/GQDs composite material can control its absorption intensity, while different doped elements in GQDs can adjust its effective absorption frequency band. This discovery lays the foundation for the research on the controllable adjustment of the wave absorption performance of BNNSs/GQDs composite absorbing materials.
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BIOSENSORS & BIOELECTRONICS
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2025
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IF 10.5
Zihan Kou,Jiameng Li,Linlin Li,Qianlong Xue,Yuansen Chen,Yikuan Liu,Xiangyan Meng,Haojun Fan
Extracorporeal membrane oxygenation (ECMO) is a life-saving technology for patients with severe cardiopulmonary failure. However, bleeding complications remain a major clinical challenge, largely due to high shear stress-induced Von Willebrand factor (VWF) dysfunction. Existing methods often lack timeliness and sensitivity for VWF detection in early bleeding risk assessment. Here, we proposed an electrochemical biosensor that combined Two-Step Synthesized graphene oxide-gold nanoparticles (rGO@AuNPs) nanocomposites modified screen-printed electrodes and a miniaturized wireless communication circuit for point-of-care testing (POCT) of VWF levels. The introduction of rGO@AuNPs significantly enhanced the sensing performance, achieving a low limit of detection of 0.39 pg/mL for VWF within 15 min. Moreover, there are Pearson correlation coefficients of 0.926 and 0.974 between the VWF biosensor and ELISA for porcine models and clinical samples. Notably, VWF degradation was associated with high shear stress, and VWF depletion was observed at the same time of APTT prolongation, suggesting its utility as a biomarker for bleeding risk. Its rapid, portable, and cost-effective design supports POCT, offering a promising tool for early monitoring and intervention in ECMO-related bleeding.
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高影响因子
Coatings
·
2025
·Vol. 15
·期 7
·760
·
IF 2.8
Tianyi Yang,Song Xue,Liming Jiang,Jiuming Lei,Wenjing Li,Yiwei Han,Zhijie Wang,Jinlong Zuo,Yuyang Wang
Microbial fuel cells (MFCs) generate electricity through the microbial oxidation of organic waste. However, the inherent electrochemical performance of carbon felt (CF) electrodes is relatively poor and requires enhancement. In this study, nickel oxide (NiO) was successfully loaded onto CF to improve its electrode performance, thereby enhancing the electricity generation capacity of MFCs during the degradation of treated wastewater. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy diffusion spectrometer (EDS) analyses confirmed the successful deposition of NiO on the CF surface. The modification enhanced both the conductivity and capacitance of the electrode and increased the number of microbial attachment sites on the carbon fiber filaments. The prepared CF–NiO electrode was employed as the anode in an MFC, and its electrochemical and energy storage performance were evaluated. The maximum power density of the MFC with the CF–NiO anode reached 0.22 W/m2, compared to 0.08 W/m2for the unmodified CF anode. Under the C1000-D1000 condition, the charge storage capacity and total charge output of the CF–NiO anode were 1290.03 C/m2and 14,150.03 C/m2, respectively, which are significantly higher than the 452.9 C/m2and 6742.67 C/m2observed for the CF anode. These results indicate notable improvements in both power generation and energy storage performance. High-throughput gene sequencing of the anodic biofilm following MFC acclimation revealed that the CF–NiO anode surface hosted a higher proportion of electroactive bacteria. This suggests that the NiO modification enhances the biodegradation of organic matter and improves electricity generation efficiency.
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Journal of Energy Storage
·
2025
·
IF 9.8
Haoran Gu,Hongyi Tian,Xinxu Yuan,Jingbin Lu,Haolin Li,Ke Zhang,Hanxiao Yan,Shuaiwen Yi
To address the low power output issue of Betavoltaic Batteries in practical applications, this paper proposes a novel isotope beta radiation energy conversion and storage system integrating a GaAs-based Betavoltaic Batteries with a low self-discharge lithium metal battery utilizing flake graphite. This system enables simultaneous collection, conversion, and storage of beta radiation energy. In experiments, we fabricated a lithium metal battery employing flake graphite as the cathode, lithium metal as the anode, and LiFSI in DME electrolyte supplemented with 4-n-pentyl-4′-cyanobiphenyl(5CB) additive. This battery was then connected to the GaAs-based Betavoltaic Batteries. Experimental results demonstrate successful energy harvesting from the Betavoltaic Batteries alone, which effecttively powered an LCD display.
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ELECTROPHORESIS
·
2020
·Vol. 41
·期 15
·1326-1332
·
IF 3.081
Zhao-Yu Wu,Hao Zhang,Feng Li,Feng-Qing Yang
Xanthine oxidase (XOD) is a key enzyme in the human body to produce uric acid, and its inhibitor can be used for the treatment of hyperuricemia and gout. In this study, an online CE-based XOD immobilized enzyme microreactor (IMER) was developed for the enzyme kinetics assays and inhibitor screening. After 30 consecutive runs, the XOD activity remained about 95.6% of the initial immobilized activity. The Michaelis–Menten constant ( K m ) of the immobilized XOD was determined as 0.39 mM using xanthine as substrate. The half-maximal inhibitory concentration and inhibition constant of the known inhibitor 4-aminopyrazolo[3,4-d]pyrimidine on XOD were determined as 11.9 and 5.2 μM, respectively. Then, the developed method was applied to evaluate the XOD inhibitory activity of 10 flavonoids, which indicated that dihydroquercetin, quercetin, biochanin A, and epicatechin had significant inhibitory effect on XOD. In addition, molecular docking results verified that the binding energy of the flavonoids with enzyme were in line with their inhibitory activity determined by XOD–IMER. Therefore, the developed XOD–IMER is a potential tool for the primary screening of XOD inhibitors from natural products.
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COLLOIDS AND SURFACES B-BIOINTERFACES
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2025
·
IF 5.6
Tao Gong,Ruolan Feng,Huirui Zhu,Moxuan Zhao,Baofeng Yu,Na Wang,Hongqin Wang,Rui Guo
Wound infections impede healing, exacerbate discomfort, and risk severe complications. Therefore, it is urgent to develop an innovative wound dressing that combines hemostasis, antibacterial and wound healing. This study presented a composite multifunctional hydrogel dressing (GA-CP@LVN) based on Poly(N-isopropylacrylamide) (PNIPAM), chitosan (CS), silver nanoparticles-modified graphene oxide (GO-Ag NPs), and levofloxacin (LVN). In vitro and in vivo studies demonstrated GA-CP@LVN’s biocompatibility, photothermal properties, high LVN encapsulation efficiency, and sustained release. Moreover, GA-CP@LVN exhibited superior antibacterial and hemostatic functionalities. Notably, GA-CP@LVN showed potent synergy in hemostasis, bacteriostasis, and cell proliferation, significantly enhancing wound healing in S. aureus -infected murine models. Thus, GA-CP@LVN emerges as a promising novel dressing for infected wound repair.
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ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Fangli Xiao,Ruiqi Wang,Lingke Li,Yanan Zheng,Shilong Dong,Wenqiang Ai,Jinnuo Yang,Jiahui Lv,Lei Zu,Huiqin Lian
In the field of lithium-ion battery (LIB) research, black phosphorus (BP) emerges as a promising anode material due to its high electrical conductivity and capacity. However, its significant volume expansion during cycling can lead to electrode pulverization and rapid capacity fade. In this study, a novel network binary polymer binder composed of carboxymethyl cellulose (CMC) and β-cyclodextrin (β-CD) is developed. Intermolecular forces crosslink CMC and β-CD, while strong intermolecular forces connect CMC and β-CD to BP. Graphite (G) is bonded to BP through P–C and P–O–C linkages, forming a composite anode. Research indicates that this intricate network structure effectively accommodates the volume changes of black phosphorus during charging and discharging, preserving the electrode structural integrity and enabling high reversible capacity. The CMC-β-CD electrode exhibits excellent cycle stability, maintaining a capacity retention rate of 70.3% after 300 cycles at 2 A g −1 , which is significantly higher than the electrodes using CMC (40.8%) and PVDF (40.6%) binders.
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JOURNAL OF CATALYSIS
·
2025
·
IF 6.5
Zhen Zhang,Quanxiao Dong,Yingqi Cui,Dan Wu,Armin Rezayan,Tianliang Lu,Renfeng Nie,Xiaoqin Si,Jianshe Wang,Chunbao Xu,Yongsheng Zhang
Catalytic oxidative depolymerization of lignin is an important strategy for producing valuable oxygen-functionalized monoaromatic compounds. However, this process is less efficient over heterogeneous catalysts due to the slow rate-determining step of selective oxidation of secondary alcohol (C α -OH to C α =O) in β-O-4 lignin linkages. Herein, a facile and efficient Ru(OH) x /C catalyst was developed for the oxidative depolymerization of lignin model compounds and real lignin in aqueous phase using molecular oxygen as oxidant. Extensive characterizations revealed that molecular oxygen abstracts electrons from the conductive carbon matrix to generate superoxide radicals (•O 2 – ), which are subsequently converted to hydroperoxide radicals (HOO•) in the presence of water. The C α -OH in the β-O-4 linkages first reacts with Ru-OH to form a Ru-O-C(H)- metal alkoxide intermediate, which then undergoes β-H elimination with the help of HOO• to generate H 2 O 2 and surface Ru-O-C•- species. Hydrolysis of Ru-O-C•- leads to the generation of C α =O products and the regeneration of Ru-OH sites. Different from the traditional Ru(OH) x -catalyzed alcohol dehydration mechanism in which Ru abstracts β-H to form Ru-H, in this case, the β-H in the Ru-alkoxide intermediate is eliminated by the hydroperoxide radicals rather than Ru, avoiding the formation of inert Ru-H species, thereby accelerating the dehydrogenation of C α -OH to C α =O. Electrochemical measurements further confirmed the charge transfer from Ru(OH) x to carbon during alcohol oxidation, demonstrating that electron donation by alcohol occurs on Ru(OH) x , while electron abstraction by O 2 occurs on the carbon. The free-radical-involved β-H elimination reaction pathway endows Ru(OH) x /C with superior catalytic oxidation activity in the aqueous phase compared with traditional metal oxides supported Ru(OH) x (e.g. SiO 2 , Al 2 O 3 , TiO 2 ), and provides a fundamental basis for the rational design of aqueous phase oxidation catalysts.
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IONICS
·
2025
·
IF 2.6
Song Jie,Zhang Yunyan,Xu Shimei,Wu Yiqian,Xiao Rengui,Ke Xiang
Dual-ion batteries have got significant attention in recent years due to their efficient ion insertion mechanism, abundant electrode material options, and chemical stability, showcasing advantages such as high operating voltage, low cost, and enhanced safety. Organic electrode materials are often used in dual-ion batteries due to their designability and high theoretical capacity. However, the compatibility between organic electrode materials and current collectors affects the cycling and capacity performance of dual-ion batteries. In this paper, a novel thin film structure of sulfuric acid-doped polyaniline composite copper oxide is electropolymerized on the surface of copper foil current collector. The synergistic effect of electropolymerization-driven oxidation and copper oxide templating facilitates the formation of doped polyaniline nanoparticles, transforming the polymer into long-range ordered crystalline structures with a particle size of 10 nm. Because of the crystalline nanostructure of doped polyaniline and copper oxide, there is an interface change between the anode and active material during charge–discharge cycles, reducing the internal charge transfer resistance from 112 to 40 Ω. While the dual-ion battery shows a significant improvement at high rates, experiments show that the dual-ion battery still retains a capacity of 44 mAh g −1 after 2000 cycles at 5 C, with a capacity retention rate of 69.7%, but the capacity of dual-ion battery without the modification current collectors is only 12 mAh g −1 after 2000 cycles at 5 C. The paper discusses the mechanism of the smallest size composite polyaniline material and the influence mechanisms on the performance of dual-ion batteries. Graphical
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ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2024
·Vol. 31
·期 32
·44759-44769
·
IF 0
Wu Rui,Song Xi,Tian Guanghui
Highly active Fe 3 O 4 /GO/Au composite nanomaterial was fabricated as a substrate of surface-enhanced Raman spectroscopy (SERS) and applied for pesticide residue detection. The three-layer multifunctional Fe 3 O 4 /GO/Au nanoparticles (NPs) were designed by facile method, with high hotspots, and were characterized by various techniques, including ultraviolet spectrophotometry (UV), X-ray diffraction (XRD), infrared absorption spectrometer (IR), and transmission electron microscopy (TEM). The performance of Fe 3 O 4 /GO/Au was evaluated by Raman spectroscopy with R6G as a probe molecule to verify its enhancement effect. It exhibited a strong Raman signal with 10 −6 M of R6G. Furthermore, the presence of Fe 3 O 4 /GO/Au nanohybrid enabled the SERS-based method to detect mancozeb and showed an excellent linear relationship in the range of 0.25–25 ppm, with a low limit of detection (0.077 ppm), satisfactory EF, stability, and repeatability. In addition, the mechanism of SERS enhancement with electromagnetic mechanism (EM) and chemical mechanism (CM) was discussed in detail. Therefore, the proposed SERS approach holds promise as an auxiliary technique for screening contaminated agricultural products, environmental sample, and food in the future.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Rumeng Shao,Fanglin Liu,Chuanbo Li,Yang Wang
The human skin possesses the capability to detect thermal and mechanical stimuli simultaneously. Ingenious flexible sensors have been explored to mimic such functionalities by integrating multiple sensing elements or adopting multimodal sensing principles. However, the widespread application of these sensors has faced obstacles such as complicated manufacturing processes, signal mismatches between different components, and high power consumption. Here, we report a single-mode self-powered flexible sensor capable of simultaneously detecting both temperature and pressure stimuli through the seamless integration of complementary and compatible thermoelectric and triboelectric sensing mechanisms. The resulting hybrid thermoelectric–triboelectric sensor exhibits unique features that are difficult to achieve with existing approaches, including single-mode output (voltage signal only), significantly simplified operation (single-measurement device), ultralow power consumption, adaptive response behavior, and excellent discriminative capability for complex stimuli. Additionally, a deep learning regression model has been implemented to dispose of the single-mode signals, achieving an impressive accuracy of 94.7% in distinguishing contact objects. This work presents an innovative design that substantially simplifies both fabrication and operation while simultaneously enhancing the functionality and energy efficiency of next-generation flexible sensing systems.
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危险品化学品经营许可证（带存储）