ENERGY & FUELS
·
2025
·
IF 5.3
Xingyu Lin,Hongsheng Lu,Ruoxin Zhang,Yingjiang Chen,Li Wang,Baiwen Huang
Underground CO2 storage is a key strategy for mitigating climate change by reducing greenhouse gas emissions. However, the heterogeneity of reservoirs poses challenges to effectively storing CO2 in designated spaces. In this study, an environmentally friendly CO2-responsive ionic liquid (IL) DA-Ch was synthesized by choline hydroxide (Ch) and dodecanedioic acid (DA) at a 2:1 mol ratio. The innovative system enhances the sweep efficiency and storage capacity of CO2 by enabling the transition of DA-Ch ILs aqueous solution from low-viscosity liquids (0.5 mPa·s at 0.1 mol/L) to solid microparticles upon CO2 introduction. After CO2 injection, DA precipitated again from the DA-Ch ILs aqueous solution with a volume mean particle size of micrometers, even under high-salinity conditions. This phase transition effectively plugs preferential flow channels, expanding CO2 storage space by 82% compared to conventional CO2 flooding. Our findings propose a novel, sustainable approach to address gas channeling challenges in subsurface CO2 storage, offering dual benefits for carbon sequestration and enhanced oil recovery.
研究领域:
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2016
·
IF 2.101
Liang Zhang,Shuo Chen,Zhi-Min Dang
Polydopamine (PDA) particulates collected from used solutions were applied for preparing surfaces with special wetting behaviors. PDA/Ag microparticles with hierarchical structures were achieved by reduction. On one hand, fluorinated PDA/Ag particles obtained superhydrophobic ability which could withstand variable pHs. On the other hand, PDA/Ag particles modified with mixed thiols could converse from superhydrophobic to superhydrophilic due to pH variation. The results not only indicate the as-formed microparticles could find wide application in oil/water separation, liquid regulation and indicators, but also show one of many possible ways to exploit the use of recycled PDA.
研究领域:
材料科学
·
表面化学
✓ 已验证
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2023
·
IF 4.2
Yao-Yao Su,Da-Wei Pan,Chuan-Fu Deng,Shi-Hao Yang,Yousef Faraj,Rui Xie,Xiao-Jie Ju,Zhuang Liu,Wei Wang,Liang-Yin Chu
A rotation-based microfluidic system with simple device setup and flow manipulation is developed for facile production of controllable emulsion droplets and liquid jets as well as functional microparticles and microfibers. The system consists of a vertically fixed injection tube and a rotating container. This system allows controllable production of single emulsion droplets and single-phase jets with adjustable uniform sizes, and predictable scale-up performance via numbering-up capillary to achieve an enhanced production rate. By flexibly changing the capillary geometry, this system can controllably produce single emulsion droplets with dual-phasic and triphasic morphologies, double emulsion droplets with core–shell and multicore–shell morphologies, and dual-phasic Janus jets. Moreover, this system can controllably fabricate versatile microparticles and microfibers from their droplet and jet templates via fast solidification without microchannel blocking in the open container. This work provides a powerful platform for promoting the wide-scale impact of microfluidics in material science, chemical, and biological fields.
研究领域:
材料科学
·
化学
·
生物学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
·
2016
·Vol. 27
·期 11
·1-9
·
IF 2.272
Shi Yunfeng,Xiong Zhipeng,Lu Xuefei,Yan Xin,Cai Xiang,Xue Wei
Abstract We describe an electrostatic droplet generation method to prepare a novel carboxymethyl chitosan−graphene oxide hybrid particles for delivery purpose. Under an adjustable electrostatic field, graphene oxide and carboxymethyl chitosan mixed solution was sprayed as uniform micro-droplets, which were solidified as particles in CaCl 2 solution. Such hybrid particles are wished to have excellent stability in saline solution, and better delivery properties than pristine carboxymethyl chitosan particles. The effects of micro-droplets generation conditions on particles formation were systematically investigated. At conditions of 40 mg/ml of carboxymethyl chitosan, 2 mg/ml of graphene oxide, 3 ml/h of feed speed, electrostatic field parameters was 9 kV and 20 cm, uniformly sized carboxymethyl chitosan–graphene oxide particles in the diameter range of 250–300 μm was successfully prepared. In NaCl saline, these particles could maintain stable for at least a week, while pristine carboxymethyl chitosan particles quickly collapsed within an hour. The results of loading experiments showed that carboxymethyl chitosan–graphene oxide particles could effectively adsorb gatifloxacin, ofloxacin, bovine serum albumin, lysozyme, doxorubicin hydrochloride. And gatifloxacin was chosen as a model drug to study the exact effect of graphene oxide content on the loading and release properties. In 40:2 group, the highest loading capacity of 0.45 ± 0.19 mg/mg was achieved, and also a good sustained release was available. Above all, we believed that carboxymethyl chitosan–graphene oxide particles as a versatile carrier, has great potential in Medicine and Pharmacy. Graphical Abstract
研究领域:
生物材料学
·
药剂学
·
医学工程
✓ 已验证
DOI
PubMed
高影响因子
RESOURCES CONSERVATION AND RECYCLING
·
2020
·
IF 8.086
Zhe Huang,Mi Lin,Ruijun Qiu,Jie Zhu,Jujun Ruan,Rongliang Qiu
With the rapid growth of lithium ion batteries (LIBs) market, large Numbers of LIBs are nearing the end of their life cycle. At the same time, large number of magnetic energy metals (MEMs) demand is difficult to meet. It is an urgent demand to recover micro magnetic particles from spent LIBs . However, the aggregates formed by micro particles make it difficult to be separated by mechanical technologies. Existing mechanical separating technologies are limited by strict particle size of larger than 0.075 mm. Chemical technologies can recover micro metallic particles without considering particle size but take the risks of environmental pollution . We developed a technology of ultrasonic dispersion and waterflow-magnetic separation to recover micro magnetic particles from mixed micro particles aggregates. By analyzing the relationship between aggregation energy and size of aggregates, the key factors to destroy the aggregation of micro particles were determined. The optimal parameters of ultrasonic dispersion were obtained by experiments. Under the condition of 20 min ultrasonic time, 200 W ultrasonic power, the maximum recovery rate of cobalt particles was 99.63% ± 0.62% and the purity of cobalt particles was 93.15% ± 0.56%. Combining with the trajectory of particles in waterflow-magnetic separation, key parameters influencing recovery effect were determined. This study provided a new technology for the separation of micro MEMs particles and aggregates.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS CHEMISTRY
·
2011
·Vol. 22
·期 4
·1445-1452
·
IF 5.101
Na Wang,Xianfeng Wang,Bin Ding,Jianyong Yu,Gang Sun
A novel airborne particulate filtration medium, consisting of a two-tier composite structure, i.e., a nano-fiber/net (NFN) top layer and a conventional nonwoven microfibrous support, was demonstrated for highly efficient and low pressure drop filtration for the first time. The polyamide-66 (PA-66) NFN structured top layer, which is composed of traditional electrospun nanofibers and two-dimensional (2D) spider-web-like nano-nets, was electro-spinning/netting (ESN) deposited on the nonwoven polypropylene (PP) scaffold for constructing this new concept of filter. The morphology of NFN architecture, including fiber diameter, coverage rate, pore-width and layer-by-layer packing structure of the nano-nets, can be finely controlled by regulating the solution properties and several ESN process parameters. Taking advantage of several fascinating features such as extremely small diameter, high porosity, controllable coverage rate, nano-nets bring to the NFN/nonwoven composite filtration medium several excellent filtration features such as high filtration efficiency (up to 99.9%), low pressure drop, facile filters cleaning, and more lightweight.
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
Materials Today Physics
·
2023
·
IF 11.5
Zhaolong Wang,Haoyong Song,Mingzhu Xie,Ziheng Zhan,Junkai Zhao,Yongping Chen
Capillary force has been extensively investigated to drive the construction of complex microstructures, though most of those previous self-assembled microstructures were on flat surfaces. In this study, we propose a capillary-force-driven self-assembly strategy working for bionic three-dimensional (3D) functional surfaces. Precisely printed micropillar arrays with an extremely large format using projection micro-stereolithography (PμSL) 3D printing technique are assembled into periodic layered structures with the assistance of ethanol evaporation induced capillary force, though the capillary-force-driven self-assembly micropillars are strongly depend on their spatial arrangement and geometric parameters . Also, large-scale programmable capillary-force-driven self-assembly of micropillars can be achieved by tailoring the arrangements of them for various patterns. We further demonstrate the functions of programmable self-assembly micropillars for the selective capture and release of microparticles . Most significantly, we extend the programmable capillary-force-driven self-assembly of micropillars on 3D bionic curved surfaces with various applications, including the mimicked patterns and selective capturing of microparticles.
研究领域:
材料科学
·
生物工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2021
·
IF 8.067
Lianbo Wang,Shilong Xing,Zizhen Shen,Huabing Liu,Chuanhai Jiang,Vincent Ji,Yuantao Zhao
In current work, Ni-Ti-CeO 2 nanocomposite coatings were achieved by co-adding Ti microparticles and CeO 2 nanoparticles. Designed experiments and COMSOL computer simulation were applied to reveal the synergistic role of Ti microparticles and CeO 2 nanoparticles in tailoring the spatial microstructures and properties of Ni-Ti-CeO 2 nanocomposite coating. Unilaterally, the conductive Ti microparticles conducted the growth behavior of Ni grains by current density concentration, distorting electronic field lines and heterogeneous nucleation. Individual domains consisting of inner nanograins and outer radial columnar grains surrounded Ti microparticles, where Ti microparticles acted as seeds. Ti microparticles tended to be aggregated, leading to spatial heterogeneity of microstructures. Ni deposits buried the Ti microparticles in forms of “covering model”, contributing to the formation of inside voids and rough surface and aggregation of Ti microparticles; on the other hand, the non-conductive CeO 2 microparticles hardly changed the distribution of current density and electronic field lines on the cathode surface. Ni deposits buried the CeO 2 microparticle in forms of “stacking model”, avoiding the inside voids and aggregation of particles. The incorporation of CeO 2 microparticle brought in microstructure evolutions only on its top side without disturbing the growth behavior of Ni grains on its lateral side or bottom, suggesting the limited effects. This was correlated with the presence of current concentration above the CeO 2 microparticle at the last stage of burying CeO 2 microparticle. The co-addition of Ti microparticles and CeO 2 nanoparticles into Ni deposits exploited the complementary action of the two particles, which gave birth to satisfied spatial microstructures and improved hardness. Ti microparticles took major responsibility for microstructure evolutions, while the CeO 2 nanoparticles were mainly in charge of the microstructure homogeneity.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL POLLUTION
·
2025
·
IF 7.3
Yu Han,Xingzhou Yu,Yanan Liu,Min Zhang,Xianke Huang,Yinan Zhang,Hangjun Zhang
As the metabolic center of crustacean invertebrates, hepatopancreas plays a crucial role in metabolic detoxification and nutrient storage. Although sulfamethoxazole (SMX) and tire micro-particles (TMPs) are emerging marine pollutants, their combined hepatotoxic effects on lipid metabolism in crustaceans remain poorly understood. In this study, Litopenaeus vannamei were exposed to SMX and TMPs for 14 days. Hepatopancreatic lesions, lipid metabolism parameters, SMX bioaccumulation, and transcriptomic analysis were evaluated. Results revealed that SMX and TMPs co-exposure induced: (1) significant histological damage to hepatopancreas, accompanied by elevated levels of hepatopancreatic lesion markers; (2) a marked increase in lipid accumulation and altered fatty acid composition in hepatopancreas; (3) enhanced activities of lipid synthesis enzymes, increased triglyceride and total cholesterol levels, and reduced lipase activity; (4) dysregulation of metabolic pathways, characterized by upregulation of fatty acid synthesis-related pathways and downregulation of fatty acid decomposition-related pathways, alongside disruption of oxidative stress and detoxification pathways. Comparative analysis illustrated that SMX and TMPs co-exposure exhibited more toxicity than individual treatments. These findings demonstrated that SMX and TMPs synergistically impair hepatopancreatic function via lipid metabolism disruption and bioaccumulation, posing a potential threat to crustacean health and significant ecological risks in marine environments.
研究领域:
海洋污染毒理学
·
无脊椎动物病理学
·
脂质代谢
·
分子生态毒理学
·
生物蓄积研究
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2019
·Vol. 9
·期 31
·17623-17630
·
IF 3.049
Yuanyue Liu
Preparing monodisperse, reproducible and functionally sophisticated microparticles is challenging but important for biomedical applications. Droplet microfluidics is a microparticle generation method that can precisely control the geometry and composition of microparticles. Droplet microfluidics generally produces only one type of microparticle at a time. Here, we report a simple and controllable method to simultaneously prepare four distinct types of microparticles by combining droplet generation with a gradient generator. The method can be more widely applied and with higher productivity than other microparticle generation methods due to the integration of dispersed phases which paves the way for the application to regenerative medicine. Different sizes, heterogenous and anisotropic microparticles are generated by manipulating the poly(lactic-co-glycolic acid) concentration gradient, the poly(ε-caprolactone)/poly(lactic-co-glycolic acid) ratio gradient, and the dimethyl carbonate/dichloromethane ratio gradient. This straightforward preparation of microparticles will promote their application in drug delivery agents, identifiers for biological assays, microsensors and tissue engineering.
研究领域:
生物医学工程
·
再生医学
·
药物递送系统
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2017
·
IF 4.9
Xin Qin,Shuwen Fang,Lei Zhao,Penghui Shi,Jinchen Fan,Yulin Min,Qunjie Xu,Weifeng Yao
Cobalt super-microparticles anchored on nitrogen-doped graphene (Co–NG) were prepared using an inexpensive method and were tested for heterogeneous oxidation of aniline with peroxymonosulfate (PMS) in aqueous solutions. The crystal structure, morphology, and textural properties of Co–NG hybrids were investigated by various characterization techniques, such as X-ray diffraction, Raman spectroscopy , dark-field scanning transmission electron microscopy and X-ray photoelectron spectroscopy. Electron paramagnetic resonance and classical quenching tests were conducted to investigate the mechanism of PMS activation and aniline oxidation. The catalyst Co–NG exhibits an unexpectedly high catalytic activity in the degradation of aniline in water by advanced oxidation technology based on sulfate radicals (SO 4 − ), and 100% decomposition can be achieved in 10 min. This paper offers new insights on heterogeneous catalysis.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MATERIALS & DESIGN
·
2016
·
IF 3.997
Tianqi Hu,Hongtao Chen,Mingyu Li
This paper presents a novel die attach material that withstands high working temperatures of up to 676 °C after < 40 min of reflow at 250 °C. The die attach material was preform compressed with Cu@Sn core-shell structured microparticles . When the reflow temperature reached 232 °C, the outer Sn layer melted and connected the inner Cu cores. After reflow soldering at 250 °C for 8 min, the outer Sn completely transformed into network-like Cu-Sn intermetallic compounds (IMCs), which have a higher remelting temperature than Sn (415 °C for Cu 6 Sn 5 and 676 °C for Cu 3 Sn). Consequently, the inner Cu cores were interconnected by the formed network-like Cu-Sn IMCs with a high remelting temperature of at least 415 °C. If the sample was reflowed at 250 °C for 40 min, the outer Cu 6 Sn 5 layer completely transformed into Cu 3 Sn, and the resulting bondline could sustain a higher temperature. The shear strengths of the resulting bondlines after reflow soldering at 250 °C for 8 and 40 min were 29.35 and 18.78 MPa at 400 and 500 °C, respectively.
研究领域:
材料科学
·
电子工程
·
冶金学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）