JOURNAL OF ALLOYS AND COMPOUNDS
·
2018
·
IF 3.779
Tianlong Yu,Shixiang Lu,Wenguo Xu
The coral-like bismuth coated iron mesh (BCIM) was fabricated via chemical etching, immersion replacement and anneal. The resulting sample exhibited remarkable superhydrophobic/superoleophilic property with water contact angle of 163° and oil contact angle almost 0°. Visually, the water and hexane droplet could separately roll off and penetrate into the BCIM surface. Various oil-water (hexane, benzene, toluene, kerosene, bean oil, chloroform, tetrachloride, and water) separations were performed to investigate the separating performance. The initial separation efficiency of hexane-water reached 98.7% and it could maintain over 96% after 20 runs. The BCIM could also act as a scavenger to eliminate the floating or underwater oil. Moreover, it exhibited marvel buoyancy, desired stability and wear resistance.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMOSPHERE
·
2022
·
IF 8.943
Gongbo Li,Jiacheng Li,Shuo Zhang,Xiaoshu Hou,Xiang Liu,Qingchun Yu,Miao Li
The recovery and reuse of adsorbents is crucial for the effectiveness and sustainability of mitigation methods for groundwater pollution. Considering the difficulty in recovering powder materials and the low mechanical strength of membrane materials, we developed a sheet material with good recyclability and certain mechanical strength. In this study, an in situ synthesized MIL-100(Fe) film sample was produced by hydrothermal reaction using a commercially available iron mesh as the substrate. The MIL-100(Fe) samples were characterized by SEM , XRD, XPS , and FT-IR. The experiments showed that the material presented excellent removal ability toward Cr(VI) and good recovery performance. In the fourth cycle test, the Cr(VI) removal rate reached more than 95%. The material characterization and adsorption kinetics indicated that the removal mechanism was oxidation-reduction reaction and electrostatic adsorption. The removal experiments at different pH values and with different co-existing ions demonstrated that the material can maintain good removal capacity at pH values between 2 and 8, and common ions in groundwater can promote the removal of Cr(VI) under neutral conditions. The recycling test demonstrated that the sample can be reused. After the sample was recovered and calcined in an inert environment, a network sample containing zero-valent iron was obtained, and it removed Cr(VI) from water at a low pH in 20 min. This study provides a new alternative for the practical removal of Cr(VI) from groundwater.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
GREEN CHEMISTRY
·
2019
·Vol. 21
·期 18
·5080-5089
·
IF 9.405
Jin Zhang,Lu Zhang,Jianguo Zhao,Wenshan Qu,Zhenxing Wang
Underwater superoleophobic and underoil superhydrophobic materials have distinct advantages for switchable oil–water separation. Although some strategies have been developed to fabricate these materials, harsh conditions such as high temperature and pressure, abundant harmful organic solvents and complicated devices are usually needed, limiting their practical applications. Moreover, due to the high adhesion properties of some oils such as crude oil, the anti-viscous oil-fouling performance of usual superwetting material is still unsatisfactory. Herein, based on the corrosion process and mussel-inspired surface coating, we have developed a mild and eco-friendly route to transform iron meshes into underwater superoleophobic and underoil superhydrophobic materials for switchable high viscosity oil–water separation. The corrosion process can generate microsphere-nanosheet structures (MNS) composed of microspheres and abundant nanosheet arrays on the iron mesh surface, while the subsequent mussel-inspired surface coating can form a compact layer to protect the MNS from damage, finally endowing the resultant mesh with durable underwater superoleophobicity and underoil superhydrophobicity. Significantly, the resultant mesh exhibits excellent anti-crude oil-fouling properties, and can separate various oil–water mixtures with high efficiency (all above 98%). Moreover, after immersion in acidic or basic solutions, the wetting properties of the mesh showed no apparent variation, demonstrating that the mesh possesses a desirable environmental stability. According to the dual superlyophobic properties of the as-prepared mesh in water–oil systems, a dual-channel device has been designed to realize the continuous separation of the crude oil–water mixture with high efficiency (above 93% after 30 cycles). This strategy may open a new avenue to prepare high-performance separation materials for viscosity oil–water separation.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY
·
2022
·
IF 5.062
Haozhan Feng,Minlan Li,Zifeng Xing,Xiao-kun Ouyang,Junhong Ling
Fucoxanthin (FX) is a natural carotenoid pigment that exhibits antitumor activity and is found primarily in brown seaweed. However, its effectiveness as a therapeutic agent varies owing to low bioavailability, poor water solubility, and poor physicochemical stability. The acidic nature of the tumor microenvironment may be utilized to design and construct a targeted magnetic, acid-labile nano-carrier (FX@Fe 3 O 4 -mSiO 2 -TA) with improved FX bioactivity. A nano-drug delivery system composed of magnetic mesoporous silica coated with a tannic acid–iron network (TA/Fe 3+ ) was designed and constructed to improve FX bioactivity based on pH and magnetic targeting in a tumor microenvironment. The external magnetic field guided the carrier to the tumor site. TA/Fe 3+ in the outer coating of the carrier was decomposed, resulting in FX release, which was attributed to the low pH of the tumor microenvironment. Drug release was sustained and pH-dependent in vitro , which significantly improved the stability and bioavailability of FX. The simplicity of its preparation and efficacy of the targeted therapeutic suggest the potential of this nano-carrier for application in tumor therapy.
研究领域:
药剂学
·
肿瘤学
·
材料科学
✓ 已验证
DOI
高影响因子
ADVANCED MATERIALS
·
2025
·
IF 26.8
Dazhi Chen,Li Yang,Shulan Ni,Chaofan Jin,Chunyi Xu,Xingjie Zan,Yang Wang,Hong Zhu
Developing high-payload systems that dynamically respond to physiological fluctuations is crucial not only for improving the precision, safety, and efficacy of protein therapies but also for addressing biosafety concerns associated with carriers, reducing administration frequency, minimizing infection risks, and enhancing patient compliance. However, achieving precise control over protein release in the high-payload carriers remain a major challenge. In this study, a physiology-responsive, high-payload insulin (Ins) granule is engineered for long-term glucose management, using Ins as a model—an essential hormone that must be released in response to blood glucose changes for effective glycemic control in diabetic patients. The [(Ins&GOx)@Zn]@[TA&Fe] granules achieve an Ins loading capacity (LC%) exceeding 80%, significantly higher than the previously reported maximum of ≈40%. These granules extend the glucose-regulating effect of free Ins, typically limited to 3 h, to 6 days with a single injection, without any observed risk of hypoglycemia. Long-term administration (28 days, 4 injection cycles, 7 days injection −1 ) shows no significant physiological toxicity or immune response. This approach offers a promising strategy for developing intelligent, high-payload delivery systems for protein-based therapeutics, advancing more precise, safe, and patient-compliant treatments.
研究领域:
生物医学工程
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药物递送系统
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纳米医学
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糖尿病研究
·
蛋白质治疗
✓ 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）