JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
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2024
·
IF 5.9
Ziqiang Yang,Yingdong Yang,Bin Yang,Mengning Luo,Yue Zhang,Jibin Miao,Shijun Kang,Zhengzhi Zheng,Jiasheng Qian,Ru Xia,Yuchao Ke,Yang Pan
In this work, a non-solvent induced phase separation (NIPS) technique was used to prepare polyvinylidene difluoride (PVDF) lithium battery (LIB) separators. Firstly, vermiculite nanosheets (VNs) coated by polydopamine (PDA), i.e., VNs@PDA, was ultrasonically dispersed in DMAc and PVDF was solution-blended with VNs@PDA with final porous composite films obtained after the extraction of DMAc. Effects of the presence of VNs@PDA on both structure and properties of PVDF films were intensively studied, and the SEM observations further suggested that the addition of VNs@PDA heavily affected the thermodynamic parameters between the polymer and solvent, causing a remarkable enhancement on the thermodynamic instability of the PVDF solution system. The polymer–solvent phase separation by the addition of less nonsolvent tended to induce the formation of long finger-like pores. An incorporation of 7.0 wt% VNs@PDA resulted in an increase in ionic conductivity of the composite membrane from 0.320 mS·cm −1 to 1.515 mS·cm −1 via AC impedance tests. The incorporation of VNs@PDA not only enhanced the hydrophilicity of the composite films (as judged by water contact angle dropping from 112.7° to 74.2°), but also significantly improved both battery performance and mechanical properties. The present study provides a facile way of fabricating LIB separators with sufficiently high safety and superior performance.
研究领域:
材料科学
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能源存储技术
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产品关联
DOI
高影响因子
Advanced Healthcare Materials
·
2023
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IF 10
Zongjia Li,Wei Wei,Miaomiao Zhang,Xinyue Guo,Bailin Zhang,Dapeng Wang,Xiue Jiang,Fangxin Liu,Jilin Tang
Humans are threatened by bacteria and other microorganisms, resulting in countless pathogen-related infections and illnesses. Accumulation of reactive oxygen species (ROS) in infected wounds activates strong inflammatory responses. The overuse of antibiotics has led to increasing bacterial resistance. Therefore, effective ROS scavenging and bactericidal capacity are essential and the advanced development of collaborative therapeutic techniques to combat bacterial infections is needed. Here, this work developes an MXene@polydopamine-cryptotanshinone (MXene@PDA-CPT) antibacterial nanosystem with excellent reactive oxygen and nitrogen species scavenging ability, which effectively inactivates drug-resistant bacteria and biofilms, thereby promoting wound healing. In this system, the adhesion of polydopamine nanoparticles to MXene produced a photothermal synergistic effect and free radical scavenging activity, presenting a promising antibacterial and anti-inflammatory strategy. This nanosystem causes fatal damage to bacterial membranes. The loading of cryptotanshinone further expanded the advantages of the system, causing a stronger bacterial killing effect and inflammation mitigatory effect with desired biosafety and biocompatibility. In addition, combining nanomaterials and active ingredients of traditional Chinese medicine, this work provides a new rationale for the future development of wound dressings, which contributes to eliminating bacterial resistance, delaying disease deterioration, and alleviating the pain of patients.
研究领域:
纳米技术
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材料科学
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生物医学工程
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药学
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传染病学
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伤口护理
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产品关联
DOI
PubMed
高影响因子
CHEMOSPHERE
·
2024
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IF 8.1
Cunkuan Zhang,Xiaolan Zeng,Xiaotang Xu,Wenbo Nie,Brajesh Kumar Dubey,Wenchuan Ding
Anode modification is an effective strategy for enhancing the electrochemical performance of microbial fuel cell (MFC). However, the impacts of the modified materials on anode biofilm development during MFC operation have been less studied. We prepared a novel PDA-Fe 3 O 4 -CF composite anode by coating original carbon felt anode (CF) with polydopamine (PDA) and Fe 3 O 4 nanoparticles. The composite anode material was characterized by excellent hydrophilicity and electrical conductivity, and the anodic biofilm exhibited fast start-up, higher biomass, and more uniform biofilm layer after MFC operation. The MFC reactor assembled with the composite anode achieved a maximum power density of 608 mW m −2 and an output voltage of 586 mV, which were 316.4% and 72.4% higher than the MFC with the original CF anode, respectively. Microbial community analysis indicated that the modified anode biofilm had a higher relative abundance of exoelectrogen species in comparison to the unmodified anode. The PICRUSt data revealed that the anodic materials may affect the bioelectrochemical performance of the biofilm by influencing the expression levels of key enzyme genes involved in biofilm extracellular polymer (EPS) secretion and extracellular electron transfer (EET). The growth of the anodic biofilm would exert positive or negative influences on the efficiency of electricity production and electron transfer of the MFCs at different operating stages. This work expands the knowledge of the role that anodic materials play in the development and electrochemical performance of anodic biofilm in MFCs.
研究领域:
环境工程
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微生物学
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电化学
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产品关联
DOI
PubMed
高影响因子
DALTON TRANSACTIONS
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2021
·Vol. 50
·期 40
·14235-14243
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IF 4.39
Qingshan Xiong,Qunling Fang,Kezhu Xu,Guanghui Liu,Min Sang,Yunqi Xu,Lingyun Hao,Shouhu Xuan
Antimicrobial materials are expected to be alternatives for antibiotics against multidrug-resistant bacteria. In this paper, non-spherical α-Fe2O3@Au/PDA core/shell nanoparticles with tunable shapes are synthesized by a one-step in situ oxidation-redox polymerization method toward near infrared light-responsive antibacterial therapy. The thickness and composition of the Au/PDA hybrid shell can be controlled by varying the concentration of HAuCl4 and the dopamine precursor. Owing to the wonderful photothermal characteristics originating from the Au/PDA shell, the spindle α-Fe2O3@Au/PDA core shell nanoparticles exhibit excellent photothermal sterilization effects against both Escherichia coli and Staphylococcus aureus at low concentrations. Meanwhile, the NIR photothermal induced bactericidal performance indicates that α-Fe2O3@Au/PDA hybrid particles with tunable non-spherical shapes possess unique controllable antibacterial effects. As a result, this finding provides a simple strategy for fabricating high performance photothermal antibacterial agents and the final products possess high potential in synergistic antimicrobial therapy.
研究领域:
材料科学
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微生物学
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生物医学工程
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产品关联
DOI
PubMed
高影响因子
Food Science & Nutrition
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2022
·Vol. 10
·期 7
·2224-2235
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IF 3.553
Zhentao Tang,Qingrong Han,Gang Yu,Fei Liu,Yuzhu Tan,Cheng Peng
Magnetic solid-phase extraction (MSPE) strategy based on the Fe 3 O 4 @PDA/MIL-101(Cr) has been proposed to separate and purify five common mycotoxins in licorice, including aflatoxin B 1 , aflatoxin G 1 , sterigmatocystin, zearalenone, and ochratoxin A. Integrating the MSPE and solid–liquid extraction/partitioning, a modified QuEChERS was established to adapt to the complex licorice samples. The Fe 3 O 4 @PDA/MIL-101(Cr) was successfully synthesized and characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and nitrogen adsorption–desorption isotherms. Sorbents with superior advantages for exclusion of matrix interference and extraction of target analytes in a short time were obtained, according to their ability of magnetic separation, high surface area (287.75 m 2 /g), large pore volume (0.61 cm 3 /g), and nanosized structure with mesopores. Prior to analysis with ultrahigh-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS), several key parameters that would affect the sorbents’ extraction efficiency were extensively investigated. Under the optimized conditions, the practicality of the developed method for analysis of mycotoxins in licorice samples was confirmed by adequate linearity ( R 2 ≥ 0.9967), high sensitivity (LODs and LOQs, respectively, in the ranges 0.01–0.09 and 0.02–0.30 μg/kg), acceptable recovery (78.53%–116.28%), satisfactory reusability, and good interbatch precision of the sorbents (RSDs in the ranges 6.70%–11.20% and 6.02%–10.35%, respectively). The results indicated that the established method was feasible and reliable for the environment-friendly and rapid screening of mycotoxins in complex licorice samples.
研究领域:
分析化学
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食品安全
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中药学
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DOI
高影响因子
Materials Today Communications
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2024
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IF 3.7
Tianlu Li,Aixian Tian,Wei Li,Yun Zhao,Minfang Chen
A one-step hydrothermal method was used to deposit a in situ composite coating on a magnesium alloy by adding ZIF-8 nanoparticles modified by polydopamine (PDA) (PDA@ZIF-8) as a photoabsorbing agent and growing Mg-Al double-layer hydroxide (LDH). The results showed that PDA@ZIF-8 nanoparticles had significant influence on the corrosion resistance, antibacterial properties, and biocompatibility of the LDH coating, and improved the compactness and crystallinity of LDH by regulating the growth of its lamella. Compared with the LDH coating, the corrosion current density of the composite coating by adding PDA@ZIF-8 nanoparticles was reduced from 2.28×10 -5 to 1.86×10 −6 A·cm -2 . And its immersion corrosion rates were 0.89 ± 0.05 mm·year −1 in SBF solution for 8 days. Meanwhile, it had antibacterial efficacy of 99.99% and 99.99% against Escherichia coli and Staphylococcus aureus , respectively, with the in vitro photothermal conversion efficiency of 29.77%. Moreover, besides greatly improving osteogenic activity and biocompatibility in vitro, the composite coating with the addtion of PDA@ZIF-8 nanoparticlescan also drive M1-type macrophages to M2-biased phenotypes after exposure to 808 nm NIR light, changing in macrophage secretion for tissue regeneration, and fulfill the excellent antibacterial properties in vivo antibacterial implantation test. This method can provide an effective way and strategy for regulating and enhancing the antibacterial functionalization and improving the corrosion resistance of the double-layer hydroxide coating on the surface of magnesium alloys.
研究领域:
材料科学
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生物医学工程
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腐蚀科学
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产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2024
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IF 2.7
Jiahuan Liu,Xiaowan Li,Shangyu Xie,Ruirui Ma,Hongfei Wang,Shu-Rong Ban,Chengwu Zhang,Lixia Guo
Titanium has been widely used as a bone implant material due to its high mechanical strength and good biocompatibility. However, implant-related infections and insufficient osteogenic activity can lead to implant failure or delay patient recovery. With that in mind, we fabricated one multifunctional implant coating material, PDA-NOate@CuS. In the as developed material, CuS, deposited in the outermost layer, not only significantly improved the photothermal properties of polydopamine (PDA), but also released Cu ion to effectively prevent bacterial adhesion. The NO-donor (NOate) with near-infrared irradiation, generated NO which strenthened antibacterial effect of materials. The in vitro antibacterial experiments proved that PDA-NOate@CuS displayed excellent S.aureus and E. coli inhibitory effect. MC3T3-E1 cells experiments results showed that PDA-NOate@CuS promoted cell adhesion, growth and mineralization. Moreover, in vivo study demonstrated that titanium implant coated with Ti@PDA-NOate/CuS markedly enhanced osseointegration, inhibited infection, with good biocompatibility. Present study paves ways for developing novel materials for implant modification, which would benefit the treatment of orthopedic disease.
研究领域:
生物材料
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骨科
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生物医学工程
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材料科学
✓ 已验证
DOI
高影响因子
Desalination and Water Treatment
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2024
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IF 1
Lujun Wang,Taiheng Zhang,Huiwen Meng,Tao Yan,Guoqing Zhao,Caifeng Li,Feipeng Jiao,Jian Huang
With the aggravation of environmental pollution caused by oil and chemical leakages, oil-water separation has attracted much attention from both academia and industry. In this paper, a cost effective immersion method based on the modification of polyurethane sponge has been developed in the application field of oil/water separation. Octadecanethio and polydopamine were used to grafted onto PU sponge which was roughened by etching method. The morphology, composition and surface properties of prepared Ota-PDA-PU sponges were characterized by various techniques. The characterization results of the modified sponge exhibited rough surface structure, excellent flexibility, and possessed super-hydrophobic characteristic with a high water contact angle (WAC) of 155 ± 1°. The as-prepared sponge displayed high absorption selectivity for different organic solvents and oils, the absorption capacity for sesame oil attained 40 times of its own weight. Meanwhile, the absorption selectivity has no decrease after 10 cycles of absorption-desorption process. More importantly, the as-prepared sponge could be used as a filter for oil-water separation.
研究领域:
环境科学
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材料科学
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化学工程
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表面工程
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DOI
高影响因子
LANGMUIR
·
2024
·
IF 3.7
Xianmin Gong,Yi He,Liping Yan,Huilian Zhou,Yiling He,Kaijun Wei,Quangang Chen,Shijun Xu
In this study, vanadium carbide (VC) was used as the raw material to synthesize PDA-functionalized VC (P-VC). VC and P-VC were added as nanoreinforced materials to the Ni–W–B coating. The effects of the two nanomaterials on the morphology, wear resistance, and corrosion resistance of the Ni–W–B coatings were investigated and compared. The experimental results show that the surface of the Ni–W–B/P-VC coating is denser and more uniform than that of the Ni–W–B and Ni–W–B/VC coatings, and there are no obvious defects on the surface. According to the hardness test, the Ni–W–B/P-VC coating reaches the highest microhardness of 887.1 HV. According to the friction and wear tests, the Ni–W–B/P-VC coating has the shallowest scratches, the lowest average friction coefficient (COF = 0.274), and the lowest wear rate (9.578 × 10–8 mm2/N). The corrosion resistance is the best, the corrosion rate is 0.0456 mm/y, and the impedance value Rt reaches 14,501 Ω·cm2.
研究领域:
材料科学
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表面工程
·
涂层技术
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产品关联
DOI
PubMed
高影响因子
ACS Applied Energy Materials
·
2021
·
IF 6.024
Rui Wang,Congzhen Xie,Shoukang Luo,Huasong Xu,Bin Gou,Jiangang Zhou,Hao Yang
Polymer-based dielectric materials with high energy storage performance have become an important part of electric power and electronic systems. But due to the low intrinsic dielectric constant of polymers, it is usually needed to mingle high dielectric constant nanofillers to improve their dielectric properties. However, the addition of nanoparticles often results in higher dielectric loss and lower breakdown strength. Herein, using a simple method of surface modification of BaTiO3, silica and polydopamine are coated on the surface of BaTiO3, significantly improving the dielectric properties of the polymer. Meanwhile, the composite with a sandwich structure is prepared by using BaTiO3@SiO2@PDA/PVDF as the central layer and pure PVDF as the two outer layers, achieving an ultrahigh breakdown strength (633 MV/m). The sandwich-structured composite with 1 wt % BaTiO3@SiO2@PDA has the highest discharge energy density (15.4 J/cm3). The simulation results reveal that the sandwich structure not only acts as an interface carrier barrier but also optimizes the electric field concentration inside the composite, which reduces the probability of electric breakdown. This work can broaden the way for dielectric films to be used in the field of high energy density, and the modification strategy can also provide ideas for other fields.
研究领域:
材料科学
·
电气工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry B
·
2021
·Vol. 9
·期 44
·9204-9212
·
IF 6.331
Xinyue Guo,Zongjia Li,Sitong Liu,Miaomiao Zhang,Yanxue Guan,Juan Qin,Xiaomeng Li,Bailin Zhang,Jilin Tang
Studying the influence of nanomaterials on the microstructure and mechanical properties of cells is essential to guide the biological applications of nanomaterials. In this article, the effects of the first synthesized PDA@CeO2 nanoparticles (NPs) with multiple ROS scavenging activities on cell ultra-morphology and mechanical properties were investigated by atomic force microscopy (AFM). After the cells were exposed to PDA@CeO2 NPs, there was no obvious change in cell morphology, but the Young's modulus of the cells was increased. On the contrary, after the cells were damaged by H2O2, the secreted molecules appeared on the cell surface, and the Young's modulus was decreased significantly. However, PDA@CeO2 NPs could effectively inhibit the reduction of the Young's modulus caused by oxidative stress damage. PDA@CeO2 NPs could also protect F-actin from oxidative stress damage and maintain the stability of the cytoskeleton. This work investigates the intracellular antioxidant mechanism of nanomaterials from the changes in the microstructure and biomechanics of living cells, providing a new analytical approach to explore the biological effects of nanomaterials.
研究领域:
纳米技术
·
生物物理学
·
细胞生物学
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材料科学
✓ 已验证
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
·
2025
·
IF 5.6
Peixuan Zou,Yusong Pan,Wenjie Luo,Run Huang,Xiuling Lin,Yinghai Xie
Chemo-photothermal synergistic therapy is an effective method for tumor treatment. Herein, the CuS/HKUST-1@PDA drug carrier was successfully prepared by a simple combination of in-situ partial vulcanization and in-situ polymerization technologies. The micro-structure, morphology, and functional groups of the prepared samples were characterized by XRD, SEM, TEM, BET, and FTIR technologies. The drug loading experiment verified that the CuS/HKUST-1@PDA possesses an excellent doxorubicin (DOX) drug loading capacity, whose drug loading capacity is as high as 88.7 %. The drug release indicated that CuS/HKUST-1@PDA drug carrier inherited pH-responsive drug release behavior, which it can release DOX in acidic conditions resembling the tumor microenvironment, while effectively containing the drug within the PDA coating under neutral conditions. The CuS/HKUST-1@PDA drug carrier demonstrated outstanding biocompatibility, sustaining cell viability above 80 % across a concentration range of 1.5–15 μg/mL. Moreover, the drug carrier realized chemo-Photothermal synergistic therapy triggered by near-infrared light in tumor treatment, reducing tumor cell viability to 28 % during in vitro cellular experiments. The innovative design and effective tumor treatment ability of the CuS/HKUST-1@PDA drug carrier highlight its significant potential in anticancer therapy.
研究领域:
材料科学
·
肿瘤学
·
纳米医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）