JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Yuning Shi,Xueai Li,Jinjin Yang,Kexin Jin,Wanchun Guo,Kesong Tian,Chunsheng Wang,Yahui Wang,Haiyan Wang
Carbon derived from polymers as microwave absorbing materials (MAMs) has been extensively explored owing to amelioration of balance between impedance matching and dielectric loss by strategies of morphology, nano-microstructure and intrinsic structure. Nevertheless, it is difficult to discern contribution between ohmic loss and polarization relaxation on microwave attenuation due to lack of methods to control the electrical conductivity at a certain value with distinct dipole polarization. Herein, pseudo-graphite proportion in amorphous carbon was controlled by the degree of polymerization of the precursor that was determined by the oligomerization reaction rate. The close electrical conductivities of amorphous carbon with an appropriate range of pseudo-graphite proportion provided a guarantee for impedance matching while avoiding the disparate effects of ohmic loss, thus, the synthetic amorphous carbon with a controllable pseudo-graphite proportion can be used to investigate the impact of polarization loss on the dissipation of microwave. The relative lower pseudo-graphite proportion within limits provided abundance of defects, provoking dipole polarization loss to achieve enhancement of microwave attenuation. The synthetic amorphous carbon with an appropriate proportion of pseudo-graphite phase exhibited excellent microwave absorption with an effective absorption bandwidth (EAB) of 6.64 GHz at a thickness of 2.2 mm over the whole Ku band. This work provided an efficient method to research the contribution of dipole polarization on electromagnetic response and found an effective direction to achieve broad bandwidth response at low thickness for carbon MAMs.
研究领域:
材料科学
·
电磁学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Yu Zheng,Guizhen Lin,Weixian Zhou,Luyao Wei,Jie Liu,Shenglong Shang,Ping Zhu
Textiles that can repeatedly change color in the presence of external stimuli have attracted great interest. Effectively designing to produce such functional textiles is essential, yet there remain challenges like producing stable coloration, rapid response, and reverse color changing. Here, the preparation of a magnetic field response (MFR) textile with a fast magnetic field response, brilliant structural coloration, and mechanical robustness is reported. The MFR textile is knitted by incorporating magnetic particles’ ethylene glycol (EG) suspension within polydimethylsiloxane (PDMS)-based fibers. A surface modification strategy is designed to prevent EG from seeping out along the PDMS polymer chains. A PDMS fiber is encapsulated in waterborne polyurethane, and a polydopamine joint layer is used. The MFR textile demonstrates magnetic field-triggered structural colors, and the breaking strength and elongation at break of each composite fiber are improved. In addition, multishaped patterns can be printed on the MFR textile with the help of the photo etching technology, which enhances the applications of the new functional textiles.
研究领域:
材料科学
·
纺织工程
·
生物仿生学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2020
·
IF 8.758
Jianing Li,Xuegang Lu,Yin Zhang,Fei Cheng,Yanlin Li,Xiaoxiang Wen,Sen Yang
Smart optical materials are drawing more and more attention because of their wide application in energy conservation, wearable sensors, optical tuning, and medical devices. However, current smart optical materials, including electroresponsive, thermoresponsive, and mechanoresponsive materials, are greatly restricted in practical applications because of their long response time, complicated preparation, and high cost. This study develops a novel, magnetically tunable, smart optical material with swift and high-contrast optical switching based on one-dimensional (1D) Fe3O4@SiO2 nanochains (NCs), which have the large shape anisotropy of the 1D structure and the superparamagnetic properties of Fe3O4 particles. The material exhibited a clear transparent state when NCs were arranged parallel to the viewing direction under an applied magnetic field, whereas it showed good shielding effect when the NCs were randomly oriented upon removal of the field. The light transmittance could be dynamically adjusted over the wide range of 20–80% through a small applied magnetic field of 50–100 Oe, which is superior to most of the currently reported systems. This swift, sensitive, and reversible response is attributed to the good responsivity of magnetic NCs. Also, an effective model was proposed to explain the transmittance modulation scheme and forecast its optical potential. The large tunable range and the low triggered field make Fe3O4@SiO2 NCs an advantageous candidate for application in smart windows, optical switchers, and other fields.
研究领域:
材料科学
·
光学工程
✓ 已验证
DOI
高影响因子
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
·
2020
·
IF 1.701
Ning Sun,Qiuhong Li,Qiuyan Jiang,Aixiang Li,Weimeng Si,Weiwei Wang
Pickering emulsion stabilized by Fe3O4 nanoparticles and ferrocene derivates via the self-assembly route exhibited good stability and the stability can be modulated by redox and applying magnetic field. The Fe3O4 nanoparticles modified by oxided ferrocene derivates (Fc+H) were used as emulsifier to prepare Pickering emulsions. The structure and properties of the emulsifier particles and emulsions were characterized by contact angle analyzer, Zeta potential meter, Fourier transform infrared spectrometer, X-ray diffraction analyzer and polarizing microscope. It was found that the conditions for obtaining stable emulsions were 41.0% molar percentage of Fc+H modified Fe3O4 nanoparticles. Moreover, the stability of emulsions can be modulated by redox and magnetic fields.
研究领域:
化学工程
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材料科学
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界面科学
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2019
·
IF 6.044
Yuankun Wang,Wenyuan Xie,Defeng Wu
Two kinds of anisotropic cellulosic nanoparticles, cellulose nanocrystal (CNC) and nanofiber (CNF), were used as additives for the aqueous carbonyl iron particles (CIPs) based magnetorheological (MR) fluids, aiming at disclosing effect of nanocelluloses on the magneto-responsive behavior and stability of MR fluids. Both CNC and CNF can stabilize MR fluids, and improve their sensitivity to alterations of magnetic field strengths. Relative to electrostatic repulsion, physical hindrance is more important to the stability improvement. Thus, CNF is the better option because it has higher aspect ratio and surface charge. Moreover, the presence of cellulosic nanoparticles hinders coalescence of CIP chains to stronger columns, and hence the nanoparticles stabilized MR fluids show thixotropy evidently. At the comparative concentration (0.3 wt%), the presence of CNF even enhances the magneto-responsive levels because the percolated CNF network acts as stress amplifier. This work opens up a new door for applications of nanocelluloses in MR fluids.
研究领域:
材料科学
·
胶体化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Extreme Mechanics Letters
·
2018
·
IF 0
Xin Wang,Bin Han,Run-Pei Yu,Fei-Chen Li,Zhen-Yu Zhao,Qian-Cheng Zhang,Tian Jian Lu
Fe 3 O 4 nanoparticle-infiltrated chromatography paper is prepared using a low-cost blending method. Upon characterizing the basic material properties of the Fe 3 O 4 /paper nanocomposite , beam-, accordion- and star-shaped actuators are constructed using the nanocomposite and the corresponding actuation performance is investigated experimentally. The beam-shaped actuator exhibits a reversible flexural deformation due to low magnetic hysteresis loop of the Fe 3 O 4 /paper nanocomposite, maintaining a stable response after 100 cycles. The accordion-shaped actuator can reach a maximum strain of 100% while the star-shaped actuator can capture a spitball twice heavier than itself.
研究领域:
材料科学
·
智能材料
·
纳米技术
✓ 已验证
产品关联
DOI
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Lu Pengpeng,Fu Xue,Li Xin,Xu Li,Yong Fan,Jie Zhao,Limei Tian,Jiyu Sun,Luquan Ren
An anticorrosive coating with randomly distributed passive barriers and regionally enriched active corrosion inhibitors is developed by integrating mica nanosheets (MNSs) and magnetic-responsive core–shell mesoporous nanoparticles with 2-mercaptobenzothiazole (Fe3O4@mSiO2/MBT) under magnetic field incubation. The bottom enriched Fe3O4@mSiO2/MBT rapidly releases the MBT to form a passivation layer on corrosion sites, enhancing the corrosion inhibition efficiency by 30.36% compared with the control (NP0.7EP-R). The impedance modulus |Z|0.01 Hz of the sample (NP0.7/MNS0.5/EP) increases by five orders of magnitude compared with that of its control (NP0.7/MNS0EP) after 30 days of corrosion immersion. NP0.7/MNS0.5/EP exhibited the lowest corrosion rate (3.984 × 10–5 mm/year) as compared to the other samples. Notably, the coating in a fractured state still maintains superior corrosion inhibition even after 40 day salt spray testing. The differentiated distribution of nanofillers was well confirmed by optical microscopy and SEM-EDS, and the synergistic effect of the active/passive integrated anticorrosive coating with merits of both comprehensive protection and fast responsiveness was systematically explored.
研究领域:
材料科学
·
腐蚀与防护
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纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2023
·
IF 6.6
Potao Sun,Chaolu Niu,Wenxia Sima,Tao Yuan,Ming Yang,Mingke Zhao,Zheng Fang,QiChang Liu,Qin Deng
Polymer insulation materials are subjected to a combination of electromagnetic fields, mechanical stresses, long-term light exposure, ambient temperature and other operating conditions that produce mechanical and electrical tree damage which lead to insulation failure. Self-healing technology is a fundamental solution to this problem. However, effective long-term self-healing of mechanical and electrical tree damage to insulating materials is extremely challenging. To address this issue, this work reports a magnetic field dual responsive blueberry-like microsphere (MFDR-BLMS) that makes a breakthrough in the long-term self-healing of mechanical and electrical damage. The microspheres are attracted to the vulnerable area of the insulating material by the directional magnetic field. When the damage come into contact with the microspheres, the high thermal conductivity microspheres as a whole rapidly melt and fill the damage channels under the action of electromagnetic induction heating. This method achieves a magnetically dual-action, non-contact, long-term effective self-healing of mechanical and electrical tree damage after photothermal aging of insulation materials. This is expected to eliminate the requirement for human contact during the repair process under live conditions and provides a new technological idea for the industrial application of self-healing materials for electrical insulation.
研究领域:
材料科学
·
电气工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Xiaoyu Wang,Yan Zhao,Huanchen Liu,Bo Dai,Xiaobo Wang,Wenjing Lou,Jun Yang
Solvent-free nanofluids were synthesized by grafting an organic oligomer shell onto the nanomaterial core, demonstrating significant liquid flow behavior at room temperature without any solvents. The synergistic effect within the solid–liquid combination found in solvent-free nanofluids positions them as potential lubricant candidates. In this study, solvent-free MXene@Fe3O4 nanofluids (MXene@Fe3O4 NFs) were successfully synthesized by loading Fe3O4 nanoparticles in situ onto MXene nanosheets, followed by covalent grafting with a silane coupling agent and a flexible long-chain polyetheramine. Its magnetic response properties were then assessed, highlighting its potential for recyclability. The tribological performance of MXene@Fe3O4 NFs as lubricants was examined under varying operating conditions with a focus on the morphology and chemical composition of the worn surface to elucidate the lubrication mechanism. The results reveal that MXene@Fe3O4 NFs, compared to MXene NFs and Fe3O4 NFs, exhibit optimal tribological performance. Additionally, even under severe loads, temperatures, or frequencies, MXene@Fe3O4 NFs show superior friction-reduction and wear-resistant properties. This phenomenon can be attributed to the fluidity endowed by the organic shell layer coupled with the synergistic tribological effects between MXene nanosheets and Fe3O4 nanoparticles. As solid–liquid lubricants with magnetic responsivity, MXene@Fe3O4 NFs present an effective strategy for high-performance lubricants synthesis.
研究领域:
材料科学
·
纳米技术
·
摩擦学
✓ 已验证
产品关联
DOI
高影响因子
Droplet
·
2025
·
IF 9.1
Yutong Wang,Shenghao Yang,Chonglei Hao,Binhong Dou,Lei Zhang,Yongle Feng,Shichuan Wang,Fuzhou Niu,Ran Tao,Sen Wang,Bing Li,Zuankai Wang
Soft robots based on stimuli-responsive materials, such as those responsive to thermal, magnetic, or light stimuli, hold great potential for adaptive locomotion and multifunctionality in complex environments. Among these, liquid crystal elastomers (LCEs) and magnetic microparticles have emerged as particularly promising candidates, leveraging their thermal responsiveness and magnetic controllability, respectively. However, integrating these modes to achieve synergistic multimodal actuation remains a significant challenge. Here, we present the thermo-magnetic petal morphing robot, which combines LCEs with embedded magnetic microparticles to enable reversible shape morphing via remote light-to-thermal actuation and high-speed rolling locomotion under external magnetic fields. The robot can achieve rapid deformation under near-infrared light, transitioning from a closed spherical to an open cross-like configuration with consistent shape recovery across multiple cycles, and demonstrates a maximum locomotion speed of 30 body lengths per second, outperforming many state-of-the-art soft robots. Moreover, the robot's performance remains robust across dry, wet, and underwater conditions, with adjustable magnetic particle concentrations allowing tunable actuation performance. Our work addresses the need for soft robots with enhanced versatility and adaptability in complex environments, paving the way for applications in areas such as targeted drug delivery and industrial material handling.
研究领域:
机器人技术
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材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
Smart Materials and Structures
·
2025
·Vol. 34
·期 3
·035063
·
IF 3.8
Bin Xue,Shu Huang,Hang Zhang,Youqing Zhang,Zhengqi Qian,Jie Sheng,Junhui Zhang,Emmanuel Agyenim-Boateng,Mingliang Zhu
In order to address the limitations of traditional acoustic metamaterials in sound absorption selectivity as well as their inadequate flexibility and adaptability for noise reduction, a honeycomb-thin-film acoustic absorbing metamaterial was developed in this study via 4D printing. By incorporating soft magnetic particles, the structure was enabled to obtain a remote magnetic response, thereby facilitating adaptive sound absorption capabilities. The mechanical properties, shape memory characteristics, and sound absorption performance of both the matrix material and the printed structure were independently evaluated and analyzed. The results indicated that the shape memory polymer containing 10 wt% Fe3O4 exhibited exceptional properties, with a shape fixation rate of 100%, and a shape recovery rate of 97%; the honeycomb-thin-film structure could revert to its original shape within 120 s. The tuning ranges for the two absorption frequencies (sound insulation and sound absorption) were determined to be 68 Hz and 53 Hz, respectively. This study introduces a novel approach to the development of smart acoustic materials with adaptive sound absorption properties.
研究领域:
材料科学
·
声学工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Yaxin Du,Xu Yan,Wenshu Wu,Baoqiang Cao,Jinlong Hu,Jingzhe Xue,Yang Lu
Thermal ablation is frequently combined with systemic chemotherapy for treating hepatocellular carcinoma (HCC). However, the side effects of systemic chemotherapy on normal tissues limit its clinical application. Herein, we report a magnetic and pH dual-responsive colloidal gel assembled by doxorubicin (DOX)-loaded magnetic ZIF-8 and gelatin nanoparticles for HCC. The magnetic colloidal gel shows improved injectability and high functional particle loading, which could be injected through a 27G needle with an injection force as low as 8.8 N at 150 mg/mL solid content. Meanwhile, this colloidal gel could be magnetically heated and accelerated release DOX under tumor microenvironment, which presents a synergistic therapeutic effect by combining magnetic hyperthermia and localized chemotherapy. Furthermore, this colloidal gel could be manually injected interventional under ultrasound-guidance, exhibiting effective deep tumor treatment effect. Due to the high solid content, suitable injectability, and mechanical properties, the colloidal gel is also a promising embolic agent for transarterial embolization in HCC treatment.
研究领域:
肿瘤学
·
材料科学
·
药剂学
✓ 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）