ACS Applied Polymer Materials
·
2026
·
IF 5.2
Huinan Zhang,Jiajun Cao,Kunlong Zhao,Fan Yang,Xinrui Guo,Zhuoheng Li,Shuo Yang,Tingjun Li,Qiaomei Ren,Ting Song,Tingting Wu,Xiaolei Wang,Wenxin Cao,Yu Sun
Alveolar bone defects from periodontitis are common clinical challenges in dentistry. Guided bone regeneration (GBR) proves effective, yet current membranes like Bio-Gide, suffer from inadequate mechanical strength, rapid degradation, and no antibacterial activity, limiting clinical performance. Asymmetric bilayer nanofibrous membranes with functional zoning offer a promising solution. Herein, we fabricated an asymmetric bilayer nanofibrous membrane via coaxial electrospinning, consisting of a dense PLGA-GO/PVA-MgCl2 outer layer and a highly porous PLGA-GO/PVA-MgCl2 inner layer. The dense layer prevents rapid soft-tissue cells invasion into the defect area while providing antibacterial effects. The porous layer facilitates osteoblast adhesion and proliferation. Graphene oxide (GO) and Mg2+ exert synergistic action: GO facilitates initial bacterial attachment, protein adsorption, and cell adhesion, while released Mg2+ disrupts bacterial membrane integrity and metabolic pathways. This results in durable bacterial killing and enhanced osteogenic effects compared to either component alone. The GO-enhanced membrane exhibited a Young’s modulus of 84.8 MPa and a matched degradation rate (23% over 2 months), providing mechanical support while maintaining structural integrity. This property combination addresses the fragility issue of Bio-Gide membranes. In vitro studies demonstrate that the dense layer effectively blocked soft-tissue invasion while permitting cell proliferation. The porous layer, with high porosity and sustained Mg2+ release, promoted MC3T3-E1 migration and differentiation. Furthermore, the membrane exhibited excellent antibacterial activity, cytocompatibility, and osteogenic capacity, as evidenced by significantly enhanced bone regeneration in a rat cranial defect model. These findings indicate the great potential of this multifunctional asymmetric bilayer membrane for clinical applications in alveolar bone defect repair.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Xunzhe Xu,Pengjie Zhong,Jinhua Hu,Manyu Shang,Qianqian Wang,Esmaeil Heydari,Gongxun Bai
Combining GO with Eu-doped SnSe enables exceptional broadband solar absorption and photothermal conversion. • A porous hydrophilic PAM hydrogel substrate facilitates highly efficient water transport and concurrent photon capture. • Excellent salt rejection and water purification capabilities were demonstrated for seawater and dye-containing wastewater. Solar-driven interfacial evaporation technology has attracted considerable attention as a promising strategy to address global freshwater scarcity. However, existing evaporators often suffer from limited solar spectral absorption and unsatisfactory water transport capabilities. Herein, we propose a hydrogel-based evaporator fabricated by incorporating a composite of graphene oxide/europium-doped tin selenide into a polyacrylamide (PAM) hydrogel. The incorporation of europium ions into SnSe, synergistically combined with graphene oxide, enables highly efficient absorption across the solar spectrum. The hydrophilic PAM hydrogel significantly enhances water transport within the evaporator while promoting multiple internal reflections of sunlight, thereby improving light trapping capability. The resulting system exhibits exceptional evaporation performance, achieving an evaporation rate of 2.25 kg m −2 h −1 and an efficiency of 98.9% under one-sun irradiation. It also demonstrates excellent salt rejection performance, exhibiting its superior performance in water treatment and seawater desalination. The strategy presented in this work, characterized by efficient solar absorption and remarkable water transport, paves the way for advancing sustainable freshwater production technologies. Download: Download high-res image (133KB) Download: Download full-size image
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ACS Applied Nano Materials
·
2025
·
IF 5.5
Qianfang Sun,Bingbing Lai,Xiaoyu Wang,Bo Dai,Xuejun Liu,Wenjing Lou
Hydrogels, owing to their outstanding hydrophilicity and remarkable ability to mitigate creep and leakage issues, serve as ideal lubricants. The introduction of nanomaterials such as MXene and graphene oxide (GO) can further enhance the mechanical strength and tribological properties of hydrogels. In this study, MXene/GO-PVA composite hydrogel lubricants were prepared by incorporating the two nanomaterials of MXene and GO into the PVA hydrogel by the chemical cross-linking method, and their tribological properties were systematically investigated. Furthermore, the lubrication mechanism of the MXene/GO-PVA hydrogel was investigated and deduced through multiple analytical techniques. Compared with the base hydrogel and single-component hydrogel, the MXene/GO-PVA hydrogel exhibits the best tribological performance: its coefficient of friction is reduced by 50.68%, and its wear volume is decreased by 63.99% relative to the PVA hydrogel. The inherent low interlayer shear strength and interlayer slip characteristics of MXene and GO, combined with their surface-abundant hydrophilic groups and the synergistic effects generated within the three-dimensional PVA hydrogel network, collectively contribute to the excellent lubrication performance. This study offers insights into the development of high-performance water-based lubricants.
研究领域:
材料科学
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摩擦学
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纳米复合材料
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聚合物水凝胶
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润滑工程
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International Journal of Electrochemical Science
·
2023
·
IF 1.5
Fang Lu,Chunyong Zhang,Jiehong Cheng,Cheng Zhu,Haojing Zhang,Xian Cheng
A direct methanol fuel cell (DMFC) electrode based on the carbon fiber cloth (CFC) modified with wrap-like graphene oxide (GO) decorated with platinum nanoparticles was prepared by multicycle CV method. Also, the Pt/CFC composite and GO/CFC composite were prepared by multicycle CV and potentiostatic method, respectively. The four electrodes (GO-Pt/CFC, Pt/CFC, GO/CFC and CFC) were tested in a fuel cell for electro-oxidation of methanol and were analyzed by scanning electron microscopy (SEM) and X-Ray powder diffraction (XRD). The SEM image indicated that the surface of CFC was covered by a wrap-like graphene oxide (GO) film completely, which increased the contact area with methanol solution and provided more load points. And the Pt nanoparticles supported GO/CFC electrode possessed the ball-like morphology. The electrochemical measurements showed that the electrocatalytic peak current density of methanol oxidation of GO-Pt/CFC electrode (218 mA/cm 2 ) was about 27% higher than Pt/CFC electrode (172 mA/cm 2 ) and the steady-state current density of GO-Pt/CFC electrode was 57.6%, 114.5% and 497.9% higher than that of Pt/CFC, GO/CFC and CFC electrodes, respectively. And this date revealed that the ball-like morphology of Pt nanoparticles and a wrap-like GO film coated on CFC surface were favorable to improve the electrocatalytic oxidation activity of methanol.
研究领域:
材料科学
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电化学
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能源科学
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ANALYTICA CHIMICA ACTA
·
2026
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IF 6.1
Xue Wang,Zhaoyang Zhou,Shuang Jiang,Qi Sun,Xianlu Lei,Yong Xie,Tao Le
Norfloxacin (NOR) has been widely applied in animal husbandry and aquaculture because of its potent antibacterial activity, broad-spectrum efficacy and cost-efficient. Nevertheless, its inappropriate use may result in teratogenic and carcinogenic risks to humans, making the accurate and rapid detection of NOR residues in food critically important. In this study, a strong affinity (Kd = 84 nM) and high selectivity anti-NOR aptamer was obtained by screening with Graphene Oxide Systematic Evolution of Ligands by Exponential Enrichment (GO-SELEX), and a colorimetric aptasensor was fabricated. The limit of detection of the aptasensor was 1.04 ng/mL, and the linear range was 1.56-100 ng/mL. Average recoveries of the aptasensor in shrimp and fish sample analyses ranged from 89.33% to 103.24%, accompanied by coefficients of variation from 3.63% to 9.43%, indicating good analytical precision and accuracy. The aptasensor constructed in this study showed high consistency with the High-Performance Liquid Chromatography (HPLC) for NOR detection, indicating that it is an efficient and promising sustainable strategy for monitoring NOR.
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PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 2.8
Lin Qi,Ying Long,Han Liu,Xun Tian,Xueyun Cai,Lindong Luan,Jiawei Wei
Effective hemostasis and pathogenic microorganism clearance are essential primary steps for establishing a stable internal microenvironment during the early stage of wound repair. Therefore, a simultaneous thermal crosslinking-integration strategy was applied to electrospun polyvinylpyrrolidone (PVP) and graphene oxide nanosheets (GO) composite fibers to achieve early-stage intervention for acute wounds. During thermal crosslinking, molecular thermal motion facilitates interactions between PVP and GO via various non-covalent interactions, thereby further stabilizing the macromolecular chains. Specifically, the fabricated PVP-G5 membranes exhibit robust morphological stability in aqueous environments, enabling them to accommodate excessive wound exudate. As a supporting substrate, the fibrous structure of PVP-G5 also facilitates platelet accumulation, thereby providing a favorable physical platform for activating the blood coagulation cascade. Furthermore, the embedded GO nanosheets within the fiber matrix not only ensure biocompatibility but also endow the fibrous membranes with NIR-switched photothermal therapy (PTT), thus achieving broad-spectrum pathogen eradication. These findings demonstrate that the PVP-GO composite fiber membranes, fabricated through the in situ thermal integration strategy during crosslinking, offer significant advantages for managing severe bleeding and infection, with promise for early treatment of acute wounds.
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高影响因子
IRANIAN POLYMER JOURNAL
·
2023
·Vol. 32
·期 10
·1291-1306
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IF 3.1
Bao Cun,Yuan Haikuan,Huang Feili,Shi Jianghuan,Hao Ruiran,Zhang Yadi,Chen Xinyi,Lu Jie
In this work, we proposed a self-assembly method to fabricate a novel pervaporative membrane for desalination. The graphene oxide (GO) layer was deposited on polyacrylonitrile (PAN) ultrafiltration membrane support by vacuum assistance, and then a thin cross-linked sodium alginate (SA) layer was coated on the GO/PAN membrane surface to form a sandwich-like SA–GO/PAN composite membrane. The morphology and physicochemical structure of the composite membrane were characterized using attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR), scanning electronic microscopy (SEM), and atomic force microscopy (AFM) techniques and contact angle measurement. The thin SA layer would stabilize and protect the structure of GO layer of SA–GO/PAN membrane, thus GO layer was not easy to fall off or crack during pervaporation desalination. The effects of SA coating concentration, feed temperature, salt concentration, and multicomponent salt solutions on the desalination performance of the prepared membrane were investigated. SA–GO/PAN membrane showed a good desalination performance for high salt concentration solutions and multicomponent salt solutions. When the feed temperature raised from 30 to 80 °C, the flux of the SA–GO/PAN composite membrane increased from 5.61 to 18.35 kg m −2 h −1 , while the rejection still remained above 99.8%. The experimental results showed that SA–GO/PAN composite membrane performed well in pervaporative desalination of salt solution with excellent long-term stability. Graphical abstract
研究领域:
材料科学
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环境工程
·
化学工程
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FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
·
2020
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IF 1.648
Yongming Zhang,Jing Zou,Yimeng Luo,Fanghui Wang
Ru-Fe bimetallic alloy nanoparticle catalyst (Ru-Fe/GO) was prepared by chemical reduction method on graphene oxide prepared using Hummers modified method. The structure and morphology of both GO and Ru-Fe/GO were analyzed using X-ray diffraction (XRD), Transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS, Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS).The effect of catalyst components on hydrogen generation rate for NaBH4 methanolysis was investigated. When Ru:Fe is 6:1, the catalytic activity is the highest, and the average rate is about 473 mL·min−1·g−1. The effect of temperature, Sodium hydroxide concentration, and sodium borohydride concentration on reaction rate is also discussed, and the activation energy for the methanolysis of sodium borohydride is 59.33 kJ·mol−1 based on the data.
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Desalination and Water Treatment
·
2024
·
IF 1
Xuezhen Feng,Yakun Zhang,Chunyan Liang,Jingang Yu,Xinyu Jiang
A novel adsorbent, poly-(dimethyl diallyl ammonium chloride) (PDDA) functionalized graphene oxide (GO) further decorated with ferro ferric oxide (Fe 3 O 4 ) nanoparticles, has been developed and used for instantaneous Cr(VI) removal from aqueous solution, and a reliable direct filtration-adsorption was achieved. Fourier transform infrared (FTIR) spectroscopy, Raman spectra (Raman), zeta potential measurement, scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS) and differential pulse voltammetry (DPV) were adopted to confirm and investigate the chemical compositions, surface properties, morphological and electrochemical performance of the as-prepared magnetic nanocomposite (denoted as GO/PDDA/Fe 3 O 4 ). The maximum adsorption capacity of GO/PDDA/Fe 3 O 4 for Cr(VI) was 141.68 mg/g at pH = 2, and the desorption-regeneration results exhibited GO/PDDA/Fe 3 O 4 could be a potential prospective nanocomposite used for instaneous filtration-adsorption of Cr(VI) from aqueous solution in real-life situations due to its fast, effective and stable properties.
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DIAMOND AND RELATED MATERIALS
·
2022
·
IF 3.806
L.L. Xie,J.H. Chu,X.J. Li,D.N. Zou,L.B. Tong
Epoxy resin (EP) coating has high hydrophilicity and poor long-term corrosion resistance . In order to improve its protection ability, an EP-graphene oxide (GO)/SiO 2 multifunctional coating is fabricated on Mg-Zn-Ca alloy in this study, through a spin/spray assisted self-assembly technique. The morphologies and microstructures of the coated samples were observed using scanning electron microscopy (SEM), Fourier infrared spectrometer (FTIR) and atomic force microscope (AFM). Hydrophobicity and self-cleaning property of the composite coating were tested by an optical contact angle meter and black graphite powders . The stability of the superhydrophobic surface was tested by rubbing with sandpaper and immersing in corrosion solution. The corrosion resistance of coated samples was tested in 3.5 % NaCl solution using electrochemical impedance spectroscopy (EIS). The GO sheets are uniformly dispersed in EP coating. EP-GO acts as a dense bottom layer, effectively promoting its adhesion with the superhydrophobic SiO 2 coating, and the water contact angle (WCA) values range from 158° to 168°. After stability testing, the WCA value of the superhydrophobic coating remains at a high level (115°–155°). The R ct of this composite coating was remarkably increased to 1.0 × 10 22 Ω/cm 2 , implying that the corrosion resistance was improved by eighteen orders of magnitude compared to bare substrate. These results show that the combination of the labyrinth effect and the hydrophobic surface extend the corrosion path and reduce the contact area of the corrosion solution with the coating, which strengthens the barrier effect of the composite coating. The composite coating exhibits superior corrosion resistance durability and self-cleaning property.
研究领域:
材料科学
·
腐蚀工程
·
表面化学
·
纳米复合材料
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高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.9
Cong Liu,Tong Lu,Bo Cheng,Rong Chen,Yong Huang,Hao Yang
This study presents the development of a durable, superhydrophobic composite cotton fabric with enhanced photothermal antibacterial properties. Graphene oxide (GO) was first deposited onto cotton fabric to create an anchoring layer, followed by the in-situ growth of ZIF-67 nanoparticles. The fabric was further modified with polydimethylsiloxane (PDMS) to impart a low-surface-energy coating, enhancing both hydrophobicity and stability. GO not only significantly enhanced photothermal conversion efficiency, but also improved the dispersivity and adhesion of the nanoparticles. The resultant GO/ZIF-67/PDMS composite fabric exhibited excellent photothermal performance, reaching 103.2°C within one minute under near-infrared (NIR) irradiation (0.6 W/cm 2 ). The antibacterial activity of the composite was evaluated against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli . Under NIR irradiation for 5 min, the survival rates of E. coli and S. aureus were reduced to 0.01% and 9.35%, respectively. Moreover, the fabric maintained both photothermal and hydrophobic properties even after 10 washing cycles in sodium dodecyl sulfate (SDS) solution or 100 abrasion cycles, demonstrating outstanding durability. These results highlight the potential of GO/ZIF-67/PDMS composite fabric in antibacterial textile with self-cleaning property, particularly in the photothermal antibacterial application.
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高影响因子
Materials Today Communications
·
2026
·
IF 4.9
Qinhui Ren,Li Hu,Fuhua Wei,Wei Shang,Min Li,Zhao Liang
The Zn/Mn-MOFs/GO composites were synthesized via a solvothermal method, and their structural characteristics were investigated using XRD, SEM, and FT-IR techniques for the adsorption study of Minocycline and Orange IV. The experimental results show that when the concentration of the minocycline solution is 30 ppm and 150 mg of GO/Zn/Mn - MOF composites is added, the maximum removal rate can reach 94.4%. When the concentration of the Orange IV solution is 30 ppm and 150 mg of GO/Zn/Mn - MOF composites is added, the maximum removal rate can reach 99.7% within 30 min. The influence of pH on the adsorption performance of these composites for Minocycline and Orange IV was thoroughly examined. The adsorption effect is better under acidic conditions. In summary, the Zn/Mn-MOFs/GO composite demonstrates excellent capability in removing Minocycline and Orange IV, offering significant implications for the management of organic pollutants.
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