JOURNAL OF MATERIALS SCIENCE
·
2018
·Vol. 53
·期 15
·10772-10783
·
IF 2.993
Liu Guangyang,Li Lingyun,Huang Xiaodong,Zheng Shuning,Xu Xiaomin,Liu Zhongxiao,Zhang Yanguo,Wang Jing,Lin Huan,Xu Donghui
In this study, the functional adsorbent metal–organic framework ZIF-8/magnetic multi-walled carbon nanotubes (M-M-ZIF-8) was successfully prepared for removal of eight organophosphorus pesticides from environmental water and soil samples. The M-M-ZIF-8 was characterized and their adsorption capacity was evaluated based on their isothermal adsorption curves. The results suggest that ZIF-8 particles are deposited on the surface of the magnetic MWCNTs via coordination–polymerization strategy. In addition, M-M-ZIF-8 has high static adsorption capacities for organophosphorus pesticides because of its high specific surface area and porous structure. The static adsorption data fit the Freundlich adsorption model better than the Langmuir model. Under the optimized conditions, M-M-ZIF-8 was successfully applied to remove the eight organophosphorus pesticides from environmental water and soil samples. A possible mechanism is valence-electron-driven adsorption by sharing or exchanging of electrons between the organophosphorus pesticide molecules and the vacant active sites of M-M-ZIF-8. Therefore, M-M-ZIF-8 is a promising hybrid adsorbent for adsorption and removal of organic pollutions from the environment.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING RESEARCH & DESIGN
·
2025
·
IF 3.9
Fei Yan,Luao Wu,Yanxin Quan,Wenhui You,Ping Li,Lina Wei,Guangle Zhou,Lidong Wang
In this study, low-crystalline CuCoO x with abundant oxygen vacancies (O v ) were prepared by hydrothermal-calcination method using ZIF-67 as the precursor. Abundant O v in the catalyst enhanced the activation of PMS for bisphenol A (BPA) degradation. The optimum catalyst Cu 1 Co 1 O x -2 completely removed BPA with a high rate constant of 0.544 min −1 , and it remained high activity in a wide pH range of 3–11. EPR analysis, electrochemical tests and quenching experiments revealed that the Cu 1 Co 1 O x -2/PMS system degraded BPA via radical (SO 4 •− , •OH, O 2 •− ), and non-radical ( 1 O 2 , electron trasfer) pathways, with O 2 •− playing a predominant role. The synergistic effect between O v and the bimetal synergy in the catalysts is the key for enhancing PMS activation. DFT analysis confirmed that the surface O v of Cu 1 Co 1 O x -2 enhanced the chemisorption of PMS on neighboring cobalt ions and facilitated the cleavage of the O-O bond of PMS. In addition, O v enhanced the interfacial charge transfer to PMS, hence boosting PMS activation with a lower energy barrier. This method is useful for eliminating refractory organic pollutants in water.
研究领域:
环境化学
·
材料科学
·
催化化学
·
水处理技术
·
纳米材料
·
物理化学
·
污染控制工程
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2021
·
IF 6.953
Dongsheng Fu,Yuanzheng Ding,Ruijie Guo,Jie Zhang,Huifang Wang,Baolong Niu,Hong Yan
ZIF-8, a subclass of metal organic frameworks (MOFs), was employed as the CuO carriers because of its high surface areas and good dispersibility. A novel antibacterial agent CuO@ZIF-8 was synthesized by environmentally-friendly direct calcination strategy, and introduced into the composite double-layer films for packing materials. The double-layer films were prepared via solution casting method with polylactic acid (PLA) and polyvinyl alcohol (PVA)-quaternary ammonium chitosan as the matrix of outer layer and inner layer, respectively; and CuO@ZIF-8 nanoparticles were introduced into the PVA-quaternary ammonium chitosan layer. The double-layer films exhibited superior antibacterial activity resulted from the uniform dispersion of CuO by ZIF-8 carriers. The elongation at break was enhanced and up to 17.13%, about 2.4-fold that of PLA films. Meanwhile, the films provided low water vapor permeability and strong UV-barrier ability which were attributed to the lay-by-layer casting, CuO@ZIF-8 doping and TiO 2 addition. Cherry tomato preservation experiment revealed that the composite films retarded the growth of harmful microorganisms on the fruit surface. MTT assay confirmed the cytocompatibility of the films. The easily fabricated double-layer films presented potential possibility in the field of biodegradable food packaging.
研究领域:
材料科学
·
食品科学
·
高分子化学
·
包装工程
·
农业工程
✓ 已验证
DOI
高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Jinjie Wei,Qiang Yu,Hui Zhang,Jinbi Che,Qiao Wan,Zhengming Dai,Zhen Chen,Changming Li,Yuanyuan Zhang
In this study, a template-assisted method was successfully employed to derive NiCo layered double hydroxide nanoflowers (NiCo-LDH NFs) with a size of 400–600 nm from cobalt-zeolitic imidazolate framework (Co-ZIF) grown on carbon nanotubes (CNTs). These nanoflowers self-assembled on the CNTs into a distinctive three-dimensional (3D) lamellar architecture, resulting in the NiCo-LDH NFs/CNTs nanocomposite material, which was further leveraged to develop a novel nanozyme-based electrochemical glucose biosensor. The precise regulation of Ni2+ concentration facilitated the directional formation of NiCo-LDH into a 3D lamellar nanoflowers structure, effectively precluding the formation of disordered stacking configurations and thereby endowing it with a high specific surface area and abundant electrochemical active sites. In addition, the synergy between NiCo-LDH NFs and CNTs promoted efficient electron transfer during electrocatalysis, leading to excellent catalytic oxidation ability for glucose. With these merits, the NiCo-LDH NFs/CNTs showed a significant current response to various concentrations of glucose within the detection ranges of 0.5–1000 and 1000–5000 μM, having sensitivities of 1151 and 928.8 μA·mM–1·cm–2, respectively, with a limit of detection of 0.092 μM (S/N = 3). Moreover, the NiCo-LDH NFs/CNTs biosensor was successfully applied to the glucose detection of actual human serum samples, demonstrating the applicability of the biosensor and showing broad application prospects.
研究领域:
纳米技术
·
电化学
·
生物传感器
·
材料科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2022
·
IF 8.025
Zhan Shu,Cencen Zhang,Lizhao Yan,Haoqi Lei,Caixing Peng,Shuang Liu,Lihong Fan,Yingying Chu
Repair of periodontal and maxillofacial bone defects is a major challenge in clinical. Guided bone regeneration (GBR) is considered one of the most effective methods. However, the efficacy of currently available GBR membranes for repair is frequently limited by their poor osteogenic potential and lack of antibacterial activity. The first step in this investigation was to construct a zinc-based zeolite-imidazolate framework loaded with copper ions ( [email protected] ). Following that, a novel polycaprolactone/polylactic acid/nano-hydroxyapatite/ [email protected] (PCL/PLA/n-HA/ [email protected] ) GBR membrane was developed using a simple porogen with nonsolvent-induced phase separation (NIPS) approach. The produced membrane with asymmetric porous structure (one smooth side and one rough side) possesses hydrophilicity corresponding to the roughness of its two sides. The superior mechanical property, stability of degradation, and ion release capability of the membrane all contribute to the clinical feasibility. Additionally, in vitro biological experiments demonstrated that the PCL/PLA/n-HA/ [email protected] membrane had favorable osteogenic and antibacterial properties, which suggests the high potential for application in the GBR procedure.
研究领域:
牙科材料
·
生物材料
·
组织工程
·
生物医学工程
✓ 已验证
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Li Ding,Yiwen Xie,Xinrui Bai,Liang Qiu,Zharykbasov E,Z. Kakimova,Gang Wu,Jianlong Wang,Yuxia Song,Rong Wang
Here, we report a general ultrasound-assisted photodynamic strategy that overcomes this challenge by employing hypocrellin B (HB), originally a narrow-spectrum agent initially effective against Gram-positive bacteria, to eradicate Gram-negative bacteria. By applying exogenous ultrasound (US), we induce interfacial electron movement and leverage the cavitation effect to disrupt the lipid bilayer structure of the outer membrane (OM). Consequently, 200 μg mL −1 of HB@ZIF-8 (ZHB) achieves an almost 7-log reduction in Escherichia coli counts within 20 min, which is sixfold higher compared to the antibacterial activity exhibited by HB alone. Molecular dynamics simulations combined with 1.3-fold increase in fluorescence signals in OM permeability experiments confirm that the synergy of ultrasound and photodynamic treatment promotes OM permeability, facilitating rapid diffusion of ROS and HB into inner membrane and intracellular regions. Furthermore, the ZHB exhibited superior inhibition of bacterial proliferation, remarkably extending Shine Muscat grapes shelf life by up to 15 days. Therefore, the sonodynamic interfacial-assisted photosensitizer ZHB prepared in this work was found effective in enhancing the antimicrobial effect against foodborne pathogens.
研究领域:
纳米技术
·
抗菌治疗
·
生物物理学
·
食品科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2021
·
IF 10.588
Keng Xuan,Juan Wang,Zhiheng Gong,Xuegang Wang,Jun Li,Yadan Guo,Zhanxue Sun
In this work, nanoscale hydroxyapatite (HAP)-modified ZIF-67 composite, HAP/ZIF-67, with abundant functional groups for uranium(VI) binding was synthesized via a facile ultrasound-assisted synthesis method. The prepared HAP/ZIF-67 was characterized by XRD , SEM, TEM , BET, FT-IR and XPS techniques, and was applied to eliminate uranium(VI) from aqueous solutions under various conditions, i.e., pH, coexisting ions, temperature and contact time. The results indicate that the abundant Co-OH, -C N- and -NH- binding groups originating from the ZIF-67 and the Ca-OH and PO 4 3- derived from loaded nanoscale HAP synergistically endowed HAP/ZIF-67 with the excellent U(VI) adsorption capacity of 453.1 mg/g, which is 2.55 and 1.78 times that of pristine HAP and ZIF-67. HAP/ZIF-67 showed high adsorption selectivity toward U(VI), and the U(VI) elimination efficiency for real wastewater by HAP/ZIF-67 reached 97.29%. The adsorption kinetics and isotherms were well simulated by the pseudo-second-order model and Langmuir isotherm model, respectively, suggesting that U(VI) adsorption was an endothermic monolayer chemisorption process. The adsorption mechanism of U (VI) by HAP/ZIF-67 was dominated by surface complexation process. This work is expected to provide an effective strategy for developing HAP-modified MOFs absorbent to be used for the highly efficient elimination of radionuclides from wastewater.
研究领域:
环境科学
·
材料科学
·
核化学
·
水污染控制
·
吸附技术
·
功能材料
·
放射性核素去除
✓ 已验证
DOI
高影响因子
Nano Select
·
2021
·Vol. 2
·期 6
·1225-1232
·
IF 0
Ziqi Zhang,Yan Zhang,Yingqi Liu,Siqi Zhang,Kaida Yao,Yueqiu Sun,Yang Liu,Xiangzhi Wang,Weimin Huang,Jun Lu
Cerium has been used as an implanted alloy additive for many years for it can enhance the mechanical properties of the alloy and restrain the corrosion of the implant. Moreover, cerium oxide nanoparticles are often used as an antibacterial material. However, there were few researches focusing on the antibacterial properties of Ce 3+ and Ce 4+ ions, instead of their corresponding oxide, as potential antibacterial coatings. Thus in this work, we loaded Ce ions into the porous structure of the ZIF-8 nanoparticles and co-deposited them with hydroxyapatite as a composite coating onto anodized titanium dioxide nanotubes array in order to test whether it can improve the anti-corrosion and antibacterial properties of the materials without affecting the biocompatibility.
研究领域:
生物材料学
·
纳米医学
·
表面工程
·
骨科植入物
·
抗菌材料
·
生物医学工程
✓ 已验证
DOI
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2025
·
IF 4.6
Wei Zhang,Kuang Luo,Wenjie Chen,Min Chen,Ning Cai,Jumei Li
In surface-enhanced Raman scattering (SERS) measurements, the creation of “hot spots” and the effective concentration of analytes in these areas are crucial for enhancing detection sensitivity. In this work, a novel composite with highly SERS activity, Ag nanospheres decorated Ag nanostar/ZIF-8 composite (Ag NS/ZIF-8/Ag) was achieved via first coating the Ag nanostars with the metal-organic framework ZIF-8, known for its strong molecular adsorption capabilities, followed by the electrostatic self-assembly of Ag nanospheres. The composites produce numerous hotspots due to the abundant plasmonic nanogaps, including the interstitial space between the Ag nanostar and Ag nanospheres, as well as internanogaps between neighboring Ag nanospheres, resulting in outstanding SERS performance. It was successfully applied for the quantitative and simultaneous detection of diquat and thiram in fruit juice, achieving detection limits of 5.0 × 10 −8 mol/L and 1 × 10 −8 mol/L, respectively, with recovery rates ranging from 86.6 % to 118.4 %. Notably, under UV light exposure, the composite was able to degrade pesticides efficiently within 80 min. Additionally, its reusability was demonstrated by sustaining strong SERS activity over five continuous detection cycles. These results emphasize the capability of Ag NS/ZIF-8/Ag composites for sensitive pesticide detection via SERS.
研究领域:
分析化学
·
纳米技术
·
表面科学
·
环境监测
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Sustainable Materials and Technologies
·
2025
·
IF 9.2
Hui Li,Ronghao Wu,Long Zhou,Zuliang Chen
In this study, a novel C-ZIF-8@Fe/REEs composite, fabricated from one-step pyrolysis using ZIF-8@Fe adsorbed with rare earth elements (REEs) as precursors was successfully used to activate peroxymonosulfate (PMS) for efficient oxidation of Bisphenol A (BPA). The as-prepared C-ZIF-8@Fe/REEs exhibited high PMS activation performance, with an BPA removal efficiency exceeding 95 % within 120 min. Characterizations revealed that the REEs introduction increased the exposure of active sites, and facilitates the electron transfer. Electron paramagnetic resonance analysis and quenching tests confirmed that both radical (·OH, ·SO 4 − ) and non-radical ( 1 O 2 , high-valent metals, and electron transfer) pathways were involved in BPA degradation. Reasonable BPA degradation pathways were proposed by analyzing the results of LC-MS and DFT calculations. Additionally, toxicity assessments demonstrated a significant reduction in the toxicity of degradation products. Finally, the synthesized composite exhibited excellent reusability and stability in real wastewater fixed column bed experiments, with the removal efficiency still be higher than 70 % after 11 h operation. These findings demonstrate that the recovery REEs from mining wastewater is an effective strategy in developing a highly efficient Fenton-like catalysts, and also highlight the promising role of using C-ZIF-8@Fe/REEs in wastewater treatment, particularly for the removal of organic contaminants.
研究领域:
环境科学
·
材料科学
·
化学工程
·
环境污染控制
·
催化化学
·
水处理技术
✓ 已验证
产品关联
DOI
高影响因子
Frontiers in Bioengineering and Biotechnology
·
2025
·
IF 4.8
Bo Zhou,Chen Zhang,Sheng Dai,Jin Zhao,Huaiyu Li,Yanbin Peng,Yunfeng Chu,Zhong Chen,Haotian Qin,Hui Zeng
Background: Chronic diabetic wounds remain a major clinical challenge due to persistent ischemia, oxidative stress, and impaired angiogenesis. Injectable hydrogels capable of adapting to irregular wound beds and delivering bioactive cues offer promising therapeutic potential for enhancing tissue regeneration.Methods: We developed a multifunctional injectable hydrogel by incorporating cinnamaldehyde-loaded ZIF-8 nanoparticles (CA@ZIF-8) into a gallic acid–grafted gelatin (GGA) matrix, followed by transglutaminase-mediated crosslinking. The physicochemical characteristics, drug release behavior, and mechanical performance of the CA@ZIF-8/GGA hydrogel were systematically evaluated. In vitro assays using human umbilical vein endothelial cells (HUVECs) were conducted to assess cytocompatibility and angiogenic activity. A full-thickness skin wound model in streptozotocin-induced diabetic rats was employed to evaluate in vivo wound healing efficacy and biocompatibility.Results: The CA@ZIF-8/GGA hydrogel exhibited favorable injectability, enhanced mechanical strength, and sustained release of both cinnamaldehyde and Zn2+. In vitro, the hydrogel significantly promoted HUVEC proliferation, migration, and tube formation, accompanied by upregulated expression of CD31 and VEGF. In vivo, CA(0.6)@ZIF-8/GGA-treated wounds demonstrated accelerated closure, enhanced granulation tissue formation, increased neovascularization, and re-epithelialization compared with control groups. No histological abnormalities were observed in major organs, indicating good systemic biocompatibility.Conclusion: This study presents an injectable CA@ZIF-8/GGA composite hydrogel that effectively promotes angiogenesis and diabetic wound regeneration. The synergistic integration of MOF-based controlled release and polyphenol-enhanced bioactivity highlights its potential as a clinically translatable platform for chronic wound management.
研究领域:
生物材料
·
再生医学
·
创伤修复
·
纳米医学
·
糖尿病并发症
·
药用高分子
·
血管生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2025
·
IF 6.2
Jing Yu,Jialong He,Yanghong Liu,Jiaheng Li,Chenhao Zhang,Yaling Liu,Rongji Liu,Chen Xu,Kai Dong,Yingping Wang
In this study, we successfully fabricated an eco-friendly nanopesticide with synergistic antifungal efficacy by loading the botanical fungicide osthole (OS) into ZIF-8-derived nanozymes (ZnSA) for microenvironment-enhanced control of ginseng seedling blight. The nanopesticide (OS@ZnSA) exhibited significant photostability and storage stability. Compared with OS technique concentrate, the inhibitory effect on Rhizoctonia solani was increased by 28%. Plant experiments revealed that OS@ZnSA not only promoted the growth of ginseng seedlings but also markedly enhanced the expression of its defense enzymes. Safety evaluation showed that OS@ZnSA had no significant effect on soil microbial community, seed germination, and human immortalized epidermal cells (HaCaT), demonstrating its favorable biosafety profile. Overall, the eco-friendly and microenvironment-enhanced nanopesticides would provide a new perspective for synergistic control of plant disease.
研究领域:
植物病理学
·
农业科学
·
纳米生物学
✓ 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）