WASTE MANAGEMENT
·
2023
·
IF 8.1
Mengxin Lu,Yongjie Xue,Hui Zhao,Xiaoshan Zhang,Teng Wang
Secondary sulfur pollution in dyeing sludge (DS) during drying and incineration is a major environmental problem necessitating in-situ control. To robustly immobilise sulfur during drying–incineration, the authors introduce an electromagnetic induction (EMI) drying method and reveal the corresponding migration and conversion of sulfur in DS. The EMI-drying efficiency reached 10.69%/min, five times that of thermal drying. EMI drying increases the relative sulfoxide ratio from that of thermal drying. In a sludge–sulfur model, the proposed treatment promoted the oxidation and decomposition of organic sulfur without noticeably affecting the inorganic sulfur. The selective oxidation process during EMI drying promotes sulfur stabilisation in dried DS, decreasing the performance and stability of DS combustion. The sulfur-containing pollutants released during the incineration of DS mainly contain H 2 S, followed by CH 3 SH and SO 2 . EMI drying increases the outputs of SO 2 and CH 3 SH but decreases the outputs H 2 S and total sulfur compared with the outputs of thermal drying. Under the sulfur-model conditions, EMI promoted the conversion of inorganic sulfur to sulfur-containing gases (especially H 2 S) during incineration. In contrast, the sulfur stabilised by partial oxidation of organic sulfur in the EMI-dried DS was not easily converted to gaseous sulfur during subsequent combustion. Overall, EMI inhibits the release of sulfur during the combined drying–incineration process of DS.
研究领域:
环境科学
·
化学工程
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产品关联
DOI
PubMed
高影响因子
Advanced Materials Interfaces
·
2021
·Vol. 8
·期 7
·2001947
·
IF 6.147
Wei Chen,Chaoxing Wu,Tailiang Guo,Hailong Hu,Fushan Li
Metals used in the electronics, machinery manufacturing, and construction industry are often chemically reactive and corrosion-prone, while barriers on a metal as a conventional method for anticorrosion always have negative effects including a toxic nature, thickness increase over time, and changes of electrical and optical properties after surface coating. This study employs a benzene solution to induce a rapid formation of a polycrystalline graphene film on copper foils or iron sheet substrates under atmospheric conditions by electromagnetic induction, which is non-toxic and environment-friendly and produces favorable anticorrosive effects. The microscopic analysis shows that the as-grown film is a polycrystalline graphene complex of graphene crystallites. It is revealed that the copper foils or iron sheets with the graphene film is significantly resistant to strong corrosion, with the corrosion current density is one order of magnitude lower when compared with samples without the graphene films. The polycrystalline structure of the graphene film can prevent the electronic conduction of the surface, thereby reducing corrosion and local over-corrosion phenomena when metals are situated in a long-term exposure to corrosive environments.
研究领域:
材料科学
·
化学工程
·
腐蚀与防护
✓ 已验证
DOI
高影响因子
Materials Chemistry Frontiers
·
2024
·
IF 6
Cijun Shuai,Feng Ding,Xiaosong Chen,Huarui Zhou,Hongyi Qian,Yifeng Wang,Yanyan Chen,Fangwei Qi,Xinna Bai
As a photoelectric material, bismuth sulfide (Bi2S3) can convert light signals into electrical signals and thus hold tremendous promise in constructing wireless electrical stimulation to accelerate nerve regeneration. However, the easy recombination of electrons and holes weakens the electrical stimulation effect. Herein, core–shell Bi2S3@PPy nanorods were prepared via the in situ hydrothermal polymerization of conductive polypyrrole (PPy) on Bi2S3 and were then blended into poly-L-lactic acid powder to fabricate a nerve conduit via laser additive manufacturing. Under a rotating magnetic field, conductive Bi2S3@PPy in the conduit could cut the magnetic inductance line to generate induced electromotive force that could drive the electrons and holes of Bi2S3 in opposite directions, thereby achieving efficient separation. Results indicate that the enhanced electron–hole separation boosted photocurrent generation, with an output current of 7.5 μA, which was significantly higher than the photocurrent under light irradiation (5.0 μA) and the induced current under magnetic field (2.5 μA). Immunofluorescent staining demonstrated that the enhanced photocurrent could up-regulate the expression of neuronal markers Nestin and GFAP. Moreover, the intracellular influx of Ca2+ was improved, which indicated that the differentiation of BMSCs into neurons was promoted. Overall, this work provides a potential wireless electrical stimulation strategy for accelerating nerve repair.
研究领域:
生物医学工程
·
神经科学
·
材料科学
✓ 已验证
产品关联
DOI
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
Materials Today Communications
·
2025
·
IF 4.5
Suwanan Thammarong,Xiaogang Yu,Peinan Yin,Renpeng Yang,Chengwei Wu,Wei Zhang
Magnetic induction hyperthermia has great potential in cancer treatment. However, the low heating efficiency of the magnetic nanoparticles (MNPs) with self-regulated temperature capability limits its clinical application. Here, the self-regulated temperature MNPs of Ca-doped Co-Zn ferrite MNPs (Ca x Co 0.5-x Zn 0.5 Fe 2 O 4 , 0 ≤ x ≤ 0.20), with high heating efficiency, were successfully synthesized by co-precipitation method followed by heat treatment. Noticeably, the x = 0.1 suspension sample can self-stabilize the temperature for high-temperature hyperthermia, whereas x = 0.2 suspension sample can self-stabilize the temperature suitable for conventional hyperthermia under an alternating magnetic field of 32 kA/m and 100 kHz. In vitro cell experiments indicate that the MNPs have good biocompatibility. The results demonstrate that optimized saturation magnetization ( σ S ) and tunable Curie temperature (Tc) enhance both the heating efficiency and thermal safety of the nanoparticles during magnetic induction hyperthermia treatment.
研究领域:
生物医学工程
·
材料科学
·
肿瘤治疗
✓ 已验证
产品关联
DOI
高影响因子
FOOD HYDROCOLLOIDS
·
2025
·
IF 12.4
Xin Jia,Ziyan Wu,Jie Jia,Jiawen Pei,Junlin Ge,Xuebo Liu,Xiang Duan
Conventional heat treatment modification of liquid egg whites (LEW) can irreversibly denature proteins, trigger protein aggregation, impair the interfacial properties of egg white proteins (EWPs), and reduce their foaming ability and textural quality of egg products. Magnetic induction electric field (MIEF) represents a novel physical technology, yet its application in LEW modification remains unreported. In this study, LEW were treated at excitation voltages of 450–650 V. The effects of MIEF on EWP structure, surface properties, apparent viscosity, and foaming characteristics were investigated. The results demonstrated that MIEF treatment significantly increased the surface hydrophobicity and zeta potential of EWPs, while reducing the particle size from 600 nm to 219 nm at 600 V excitation voltage. Scanning electron microscopy corroborated these findings, revealing pore structure formation. Concurrently, enhanced intermolecular interactions promoted dynamically crosslinked mesh structure formation, thus increasing apparent viscosity. Accordingly, MIEF treatment significantly improved both the foaming ability and foam stability of EWP, with a 22.18% increase in foaming ability and a 26.30% increase in foam stability . In conclusion, MIEF induces moderate denaturation of EWPs, achieving a balance between interfacial properties enhancement and avoidance of protein aggregation. These results establish a theoretical and practical foundation for applying MIEF technology to EWP modification in the food industry, offering potential to advance innovation in food processing.
研究领域:
食品科学
·
生物物理学
·
食品加工
✓ 已验证
产品关联
DOI
高影响因子
Biosensors-Basel
·
2024
·Vol. 14
·期 5
·240
·
IF 4.9
Dongpeng Luo,Limin Xu,Lifeng Jia,Lianglun Cheng,Ping Tang,Jinyun Zhou
Cashmere and wool are both natural animal fibers used in the textile industry, but cashmere is of superior quality, is rarer, and more precious. It is therefore important to distinguish the two fibers accurately and effectively. However, challenges due to their similar appearance, morphology, and physical and chemical properties remain. Herein, a terahertz electromagnetic inductive transparency (EIT) metasurface biosensor is introduced for qualitative and quantitative identification of cashmere and wool. The periodic unit structure of the metasurface consists of four rotationally symmetric resonators and two cross−arranged metal secants to form toroidal dipoles and electric dipoles, respectively, so that its effective sensing area can be greatly improved by 1075% compared to the traditional dipole mode, and the sensitivity will be up to 342 GHz/RIU. The amplitude and frequency shift changes of the terahertz transmission spectra caused by the different refractive indices of cashmere/wool can achieve highly sensitive label−free qualitative and quantitative identification of both. The experimental results show that the terahertz metasurface biosensor can work at a concentration of 0.02 mg/mL. It provides a new way to achieve high sensitivity, precision, and trace detection of cashmere/wool, and would be a valuable application for the cashmere industry.
研究领域:
材料科学
·
纺织工程
·
传感技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF FOOD ENGINEERING
·
2020
·
IF 4.499
Gaoshang Wang,Zhili Wan,Xiaoquan Yang
It is a challenge to pasteurize higher-viscosity and heat-sensitive foodstuffs via traditional convective heat transfer. Herein, we demonstrate the potential application of magnetic induction heating (MIH) as a novel uniform heating method applied in the pasteurization of liquid whole eggs (LWEs). Upon exposure to an alternating magnetic field (AMF), the magnetic microbeads with a large size (50 μm) generated heat via the magnetic hysteresis effect, providing accurate and homogeneous heating due to the high specific absorption rate (SAR) of 3108.4 ± 30.6 W/(g Fe) and a homogeneous particle dispersion in high-viscosity food media. A 7.6 log reduction of Salmonella Enteritidis could be achieved in LWEs treated by MIH at 68 °C and 60 s, which was comparable to the inactivation performance of the convective heating protocol at 60 °C and 210 s (6.0 log reduction). Importantly, MIH showed a critical temperature-time regime to prevent the coagulation of egg proteins, thus maintaining the quality attributes associated with fresh LWEs. The obtained results suggested that MIH could be a potential alternative to conventional convective heating for pasteurization applications.
研究领域:
食品科学
·
微生物学
✓ 已验证
产品关联
DOI
高影响因子
Advanced Sensor Research
·
2024
·
IF 0
Yuanzhe Liang,Ziyi Dai,Sen Ding,Yuan Zhang,Yinning Zhou,Bingpu Zhou
Detection of liquid viscosity is important from chemical engineering to daily safety. To match the emergence of internet of things, precise and fast viscosity determination is attracting intention in the society. However, most miniature viscometers face limitations such as high operation frequency, moving component, and non-linear sensing, etc. Herein, a flexible viscometer is developed via coupling the electromagnetic induction with inherent oscillation of a magnetized oscillator. The mechanism allows vibration of the oscillator to be electrically reflected using damping signals. By analyzing the damping factor from viscosity-dependent voltage profiles, viscosity of an unknown liquid can be accurately obtained. Furthermore, the 3D structures is developed with a dual-template method, which enables convenient and high-throughput preparations of devices with complex 3D structures. Via optimizing the structural and physical parameters, the “sphere” oscillator enables a linear relationship between the damping factor and the square root of viscosity for quantitative sensing in range of 0.01809–24.7 mPa s. The principle of electromagnetic induction renders the viscometer with superiorities of low operating frequency, remote sensing, self-powered and chemical stability. It is expected that the methodology and damping dominant mechanism will serve as a promising platform for cost-effective, portable and convenient viscosity detection for applications in diverse fluids.
研究领域:
化学工程
·
传感器技术
·
材料科学
·
物理电子学
✓ 已验证
DOI
Nature Communications
·
2024
·Vol. 15
·期 1
·1-9
·
IF 14.7
Chen Donglin,Sha Juncheng,Mei Xudong,Ye An,Zhao Zhengping,Qiu Xunlin,Liu Xiaoyun,Niu Yueping,Zuo Peiyuan,Zhuang Qixin
As integrated circuits have developed towards the direction of complexity and miniaturization, there is an urgent need for low dielectric constant materials to effectively realize high-fidelity signal transmission. However, there remains a challenge to achieve ultralow dielectric constant and ultralow dielectric loss over a wide temperature range, not to mention having excellent thermal conductivity and processability concurrently. We herein prepare dual-linker freestanding covalent organic framework films with tailorable fluorine content via interfacial polymerization. The covalent organic framework possesses an ultralow dielectric constant (1.25 at 1 kHz, ≈1.2 at 6 G band), ultralow dielectric loss (0.0015 at 1 kHz) with a thermal conductivity of 0.48 Wm −1 K −1 . We show high-fidelity signal transmission based on the large-sized (>15 cm 2 ) COF films, far exceeding the most commercially available polyimide-based printed circuit board. In addition, the covalent organic framework also features excellent electret properties, which allows for active high-temperature electromechanical sensing. The electrode nanogenerator maintains 90% of the output voltage at 120 °C, outperforming the traditional fluorinated ethylene propylene electret. Collectively, this work paves the way for scalable application of ultralow dielectric constant covalent organic framework thin films in signal transmission and electromechanical sensing.
研究领域:
材料科学
·
电子工程
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
·
2023
·
IF 2.7
Ala R. Al-Areqi,Xiaogang Yu,Renpeng Yang,Chao Wang,Chengwei Wu,Wei Zhang
ZnFe 2 O 4 particles have drawn much attention due to their low toxicity and soft ferrite nature, but the low saturation magnetization limits their bio-applications. Herein, the heat treatment was employed to improve the saturation magnetization of ZnFe 2 O 4 particles synthesized by hydrothermal method. After heat treatment, the saturation magnetization of ZnFe 2 O 4 increases from 11.1 emu/g to 126.0 emu/g after heat treatment at 1200 °C, which is the maximum one reported up to now. The XRD and XPS analyses suggest that the increment in saturation magnetization may result from the migration of Zn 2+ from A -site to B -site incurred by the heat treatment. According to the results of the magnetic heating studies, the saturation magnetization enhancement increased ZnFe 2 O 4 heating efficiency. The in vitro cell experiments demonstrate the obtained ZnFe 2 O 4 magnetic particles exhibit negligible cytotoxicity to HaCaT cells.
研究领域:
材料科学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
·
2024
·
IF 2.5
Xiaogang Yu,Md Mostafezur Rahman,Renpeng Yang,Chengwei Wu,Abdelhakim Bouyahya,Wei Zhang
Magnetic induction hyperthermia with self-regulated temperature is an advanced technology capable of automatically regulating hyperthermia temperature through a magnetic phase transition, which has a promising application prospect. This paper investigated the effects of Al 3+ doping on the magnetic properties and Curie temperature of Zn-Mn ferrite. The specific saturation magnetization and Curie temperatures of Zn 0.5 Mn 0.5 Al x Fe 2-x O 4 (0 ≤ x ≤ 0.6) nanoparticles decrease linearly with increment of Al 3+ content. The magnetic heating experiments exhibit that the synthesized nanoparticles can raise the temperature of agar phantom to above 42 °C and self-regulate the temperature below their Curie temperatures, demonstrating their potential for self-regulated temperature hyperthermia. Additionally, in vitro cell experiments confirm the nanoparticles’ good biocompatibility.
研究领域:
材料科学
·
生物医学工程
·
纳米医学
✓ 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）