ADVANCED ENGINEERING MATERIALS
·
2023
·Vol. 25
·期 16
·2300389
·
IF 3.6
Xiaochang Xing,Lingling Wu,Xiaoyong Tian,Dichen Li
Objects can be identified based on their distinctive scattering signatures in multiple physical areas such as optics, electromagnetics, and thermotics. To ensure comprehensive stealth and camouflage capabilities, antisense devices with multiphysical field coupling are highly desired. Herein, a multifunctional antisense metadevice that achieves stealth in the microwave band while also generating multiple camouflage images from the original object's position during the heat conduction process is proposed and demonstrated. The metadevice combines both antimicrowave detection and camouflage infrared imaging capabilities, resulting in broadband electromagnetic stealth and thermal camouflage effect. Experimental and simulation results confirm the metadevice's ability to achieve these multifunctional capabilities in temperature-dependent cases. The development of such multifunctional devices that span physical fields provides new avenues for the design and preparation of multifunctional structures.
研究领域:
电磁学
·
热传导
·
材料科学
✓ 已验证
DOI
高影响因子
OPTICS COMMUNICATIONS
·
2023
·
IF 2.4
Tingting Lang,JinHui Zhang,Yanqing Qiu,Zhi Hong,Jianjun Liu
In this paper, a flexible terahertz (THz) Metamaterial (MM) with high sensitivity is proposed for the detection of the pesticide imidacloprid. The MM sensor is composed of a polyimide (PI) substrate and a periodic aluminum (Al) split ring resonator array. The sensing performance of the MM is verified by both simulation and experiment. The simulation results show that the refractive index (RI) sensitivity of the proposed MM sensor is 220.7 GHz/RIU, and the figure of merit (FOM) of this MM is 1.52. Then, the sensing performance of the MM sensor is verified by using imidacloprid solutions with different concentrations. The experimental results show that the detection sensitivity of the MM sensor is 12.3 GHz/(mg/ml), and the limit of detection (LOD) is 0.0112 mg/ml. The THz MM sensor proposed in this paper is flexible, simple to make, cost-effective, highly sensitive and has a very broad application prospect in the concentration detection of pesticides such as imidacloprid.
研究领域:
农药检测
·
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
Additive Manufacturing
·
2024
·
IF 10.3
Xinxi Zeng,Pingfan Jia,Desheng Pan,Yunlong Guo,Xiaoqing Xi,Peipei Li,Lingyun Qian,Chaoyang Sun,Ying Li,Bo Li,Ji Zhou
4D printing allows the creation of 3D-printed structures with a variety of new functionalities that respond to external stimuli, including electromagnetic properties, for which research is limited, such as terahertz resonances in ferrite materials; and therefore holding great promise for a wide range of applications. However, the limited physical properties of ferrite materials, including their anisotropic properties and limited material manipulation space, pose significant challenges to the development of ferrite materials designed for progressively increasing terahertz frequencies. Therefore, this paper proposes a platform for overcoming the limitations of terahertz resonance in ferrites through the 4D printing of metamaterials. Both the elastic and viscous moduli of the slurry are sensitive to the applied shear stress; as this stress increases, these moduli sharply decrease by several orders of magnitude, resulting in the transformation of the slurry into a fluid state similar to the liquefaction of ink. Electromagnetic coupling modes between electric dipoles and magnetic dipoles endow these ferrite metamaterials with induction and switching of terahertz resonances due to orientation stimulation. Our work sheds light on the creation of electromagnetic properties and their control by 4D printing.
研究领域:
材料科学
·
电磁学
·
物理学
✓ 已验证
产品关联
DOI
高影响因子
Engineering
·
2022
·
IF 12.834
Xiao-Chang Xing,Yang Cao,Xiao-Yong Tian,Lingling Wu
Metamaterials have attracted increasing attention in recent years due to their powerful abilities in manipulating electromagnetic (EM) waves. However, most previously reported metamaterials are unable to actively control full-band EM waves. In this paper, we propose a thermo-tunable broadband metamaterial (T-TBM) using paraffin-based composites (PD-Cs) with different phase transition temperatures. Active control of the T-TBM reflection loss peaks from low to high frequency is realized by manipulating the solid–liquid state of the PD-Cs at different phase transition temperatures. The absorption peak bandwidth (where the reflection loss value is less than −30 dB) can be changed, while the broad bandwidth absorption (where the reflection loss value is less than −10 dB) is satisfied by adjusting the temperature of the T-TBM. It is shown that the stagnation of the phase transition temperature of the PD-Cs in the T-TBM provides a time window for actively controlling the EM wave absorption response under different thermal conditions. The device has a broad application prospect in the fields of EM absorption, intelligent metamaterials, multifunctional structural devices, and more.
研究领域:
材料科学
·
电磁学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Yisong Qiu,Hongfei Ye,Shuaiqi Zhang,Hongwu Zhang,Yonggang Zheng
Soft network metamaterials are widely used in fields such as flexible electronics, tissue engineering, and biomedicine due to their superior properties including low density, high stretchability, and high breathability. However, the prediction and customization of the nonlinear mechanical behavior of soft network metamaterials remain a challenging problem. In this study, a family of hydrogel-based network metamaterials with biological tissue-like mechanical properties are developed based on a machine learning-driven optimization design method. Numerical and experimental results explain the relationship between the mechanical properties of the designed metamaterials and their microstructural features and stretching ratios. The results indicate that the hydrogel-based network metamaterials exhibit J-shaped stress-deformation (σ–λ) behavior similar to biological tissues. This phenomenon arises from the transition of the deformation mode of metamaterials from bending-dominated to stretching-dominated as the stretching ratio increases. Based on the proposed design scheme, the Poisson’s ratio of metamaterials can be adjusted within a remarkably wide range of −1.06 to 1.34. Furthermore, through optimizing the design parameters of the metamaterial, the customization of network metamaterials with biological tissue-like zero Poisson’s ratio behavior and stress response is achieved. The potential applications of hydrogel-based network metamaterials are demonstrated through artificial skin and LED integrated device. This research offers novel insights into predicting, designing, and fabricating the mechanical behavior of soft network metamaterials.
研究领域:
生物医学工程
·
材料科学
·
柔性电子学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Advanced Science
·
2023
·Vol. 10
·期 19
·2301170
·
IF 15.1
Yifan Wang,Jiarong Niu,Xin Jin,Xiaoming Qian,Changfa Xiao,Wenyu Wang
Electromagnetic (EM) metamaterial is a composite material with EM stealth properties, which is constructed by artificially reverse engineering metal split resonance rings (SRR). However, the greatest limitation of EM metamaterials is that they can only stealth at a fixed and lower frequency of EM waves, and modern processing techniques still cannot meet the accuracy requirements to fabric nano-size structural unit. Nano-sized and even ultra-small SRR at molecular level are promising arrays to realize the ability of EM stealth function at a higher frequency, although it has proven challenging to synthesize long, straight, connected molecular SRR, and also difficult to arrange those molecular SRR into a strict array. Here, the study overcomes this challenge and demonstrates that the fabric of polypyrrole molecular SRR achieves an ultra-small inner diameter of 2.49 Å and realizes the arrays arrangement at molecular level. Furthermore, the study exploits the EM stealth function and verifies that such arrays of molecular SRR with 2.49 Å have the ability to reach high-performance EM stealth in the range of 10 6 –10 16 Hz. This design concept opens a pathway for developing new metamaterials with broadband EM wave stealth and also serves the wider range of new applications.
研究领域:
材料科学
·
电磁学
·
纳米技术
✓ 已验证
DOI
高影响因子
Micromachines
·
2022
·Vol. 13
·期 11
·1902
·
IF 3.523
Yuke Han,Xiaomeng Bian,Misheng Liang,Tianshu Li,Lianqing Zhu,Xiaoguang Zhao,Rui You
An enzyme-free terahertz uric acid sensor based on a metallic slot array metamaterial was proposed and realized both theoretically and experimentally. The sensing model was verified in simulation and femtosecond laser processing technology was employed to ablate slots in the copper plate to fabricate metamaterials. Analytes were tested with liquid phase deposition on the metamaterial by a terahertz frequency domain spectroscopy system. Gradient concentrations of uric acid, ascorbic acid, and a mixture of them were measured separately with a good linear response. A significant decrease in sensitivity was observed in the ascorbic acid assay compared with the uric acid assay. The test results of the mixture also proved that our device is resistant to ascorbic acid. It is a simple and effective method for monitoring uric acid concentrations and the strategy of eliminating interference while modulating the resonance peak location mentioned here can be rationally projected for the development of other sensors.Keywords:uric acid detection;terahertz metamaterial;biosensor;enzyme-free detection
研究领域:
生物医学工程
·
传感技术
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
InfoMat
·
2022
·Vol. 4
·期 12
·e12349
·
IF 24.798
Hong Zhou,Dongxiao Li,Zhihao Ren,Xiaojing Mu,Chengkuo Lee
Metamaterials have proven their ability to possess extraordinary physical properties distinct from naturally available materials, leading to exciting sensing functionalities and applications. However, metamaterial-based sensing applications suffer from severe performance limitations due to noise interference and design constraints. Here, we propose a dual-phase strategy that leverages loss-induced different Fano-resonant phases to access both destructive and constructive signals of molecular vibration. When the two reverse signals are innovatively combined, the noise in the detection system is effectively suppressed, thereby breaking through the noise-related limitations. Additionally, by utilizing loss optimization of the plasmon-molecule coupling system, our dual-phase strategy enhances the efficiency of infrared energy transfer into the molecule without any additional fabrication complex, thereby overcoming the trade-off dilemma between performance and fabrication cost. Thanks to the pioneering breakthroughs in the limitations, our dual-phase strategy possesses an overwhelming competitive advantage in ultrasensitive vibrational spectroscopy over traditional metamaterial technology, including strong signal strength (×4), high sensitivity (×4.2), effective noise suppression (30%), low detection limit (13 ppm), and excellent selectivity among CO 2 , NH 3 , and CH 4 mixtures. This work not only opens the door to various emerging ultrasensitive detection applications, including ultrasensitive in-breath diagnostics and high-information analysis of molecular information in dynamic reactions, but also gains new insights into the plasmon-molecule interactions in advanced metamaterials.
研究领域:
光学
·
材料科学
·
传感技术
✓ 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
APPLIED PHYSICS LETTERS
·
2021
·Vol. 118
·期 18
·
IF 3.791
Yin Feng,Yan Kelan,Shen Liming,Bao Ningzhong
Random metamaterial with negative electric permittivity ( ε < 0) and negative magnetic permeability ( μ < 0) is a group of attractive alternatives to ordered double negative metamaterials (DNMs) with periodic unit cells; however, the preparation of random DNMs with a relatively convenient preparation process and their electromagnetic property adjustment are of challenge. Here, we report the preparation of metallic ferromagnetic selenospinel composites, x CdCr 2 Se 4 ·(1− x )CuCr 2 Se 4 , from metallic powders by using a simple solid-state reaction process, and double negative ε and μ have been observed in the frequency range of 120–650 MHz for 0.2CdCr 2 Se 4 ·0.8CuCr 2 Se 4 and 73–520 MHz for 0.4CdCr 2 Se 4 ·0.6CuCr 2 Se 4 . The negative ε is owing to the plasmonic state of delocalized carriers in the metallic ferromagnetic CuCr 2 Se 4 , which can be described with the Drude model. The suppression of the magnetic resonance induced by the eddy current has been alleviated by the proper addition of the paramagnetic semiconductor CdCr 2 Se 4 . A theoretical model deduced from Maxwell's equation has been constructed based on the skin effect to elucidate the magnetic resonance-dependent negative permeability. Our work introduces the metallic ferromagnetic chalcospinels into the field of random DNMs and sheds light on the theoretical understanding and tuning mechanism on the double negative properties.
研究领域:
材料科学
·
电磁学
·
理论物理
✓ 已验证
产品关联
DOI
高影响因子
Matter
·
2024
·
IF 17.3
Jinhu Zhang,Nana Zhou,Erqian Dong,Chuang Zhang,Zhongchang Song,Sheng Liu,Chen Yang,Xiaochun Su,Shujia Wang,Yu Zhang
Dolphins utilize soft forehead tissues for dynamic detection by efficiently transmitting and manipulating broadband acoustic waves. Imparting high acoustic transparency, gradient refractive index, and softness to acoustic functional materials can significantly enhance sound wave manipulation. Conventional metamaterials, consisting of solid and impedance-mismatched meta-atoms, have limitations in achieving acoustic transparency and flexibility. Here, we overcome these constraints with a new class of acoustic soft bio-metamaterials (SBMs) composed of solid microparticles or liquid microdroplets dispersed in a hyper-elastomer. The SBMs exhibit an extraordinary combination of high acoustic transparency with transmission coefficients near 1, a gradient refractive index above 1.25, and a low elastic modulus under 100 kPa comparable to biological tissues. Furthermore, we developed a dolphin-inspired tunable subwavelength acoustic beamformer using SBMs, which can dynamically modulate acoustic beam patterns through mechanical stretching. SBMs offer a new design paradigm for acoustic soft metamaterials and have potential applications in underwater monitoring and biomedical ultrasound.
研究领域:
生物医学工程
·
声学材料
·
超材料
·
生物仿生学
·
医学超声
·
柔性电子
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry C
·
2024
·Vol. 12
·期 21
·7644-7651
·
IF 5.7
Zechao Xu,Weiyi Lu,Kelan Yan,Runhua Fan,Ningzhong Bao
Single-phase metamaterials are a group of attractive alternatives to ordered double negative metamaterials (DNMs) that exhibit negative permittivity (ε < 0) and negative permeability (μ < 0) with periodic unit cells. However, achieving double negative electromagnetic properties in a single-phase material in the radio-frequency range is challenging. This study presents the synthesis of the single-phase metamaterial, selenospinel CuxZn1−xCr2Se4, from metallic powders through a simple solid-state reaction process. The double negative values of ε and μ were observed in the frequency range of 484–1000 MHz for Cu0.8Zn0.2Cr2Se4 (x = 0.2) and 638–1000 MHz for Cu0.6Zn0.4Cr2Se4 (x = 0.4). The negative value of ε is attributed to the plasmonic state of delocalized carriers in the metallic ferromagnetic CuCr2Se4 and can be described using the Drude model. The suppression of magnetic resonance induced by the eddy current was alleviated through appropriate doping of the Zn element. Based on the skin effect, a theoretical model was constructed to elucidate the magnetic resonance-dependent negative permeability. In this study, metallic ferromagnetic chalcospinels are introduced into the field of single-phase DNMs, which significantly broadens the range of metamaterials. Furthermore, this study contributes to the theoretical understanding and tuning mechanism of double negative properties.
研究领域:
材料科学
·
物理学
✓ 已验证
DOI
高影响因子
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