Nature Communications
·
2025
·Vol. 16
·期 1
·1-15
·
IF 15.7
Liu Feihong,Yao Shasha,Li Jia,Huang Kejie,Zhang Dongdong,Wong Tak Man,Tang Ruikang,Yeung Kelvin W. K.,Wu Jun
In the pursuit of replicating the remarkable mechanical properties of natural biological composites like bone and seashell, developing artificial bulk materials that seamlessly integrate rigid inorganic components with ductile organic constituents has been a longstanding challenge. A key hurdle has been the establishment of robust and reliable linkages between these disparate building blocks. Mechanical metamaterials achieved by well-designed chemical structures, however, offer a promising solution to address this challenge. In this study, we demonstrate that the calcium phosphate-based inorganic-organic hybrid metamaterials trapping inorganic nanoparticles within long-chain polymeric networks and anchoring inorganic blocks to these networks via short-chain organic crosslinkers exhibit switchable and tunable high stiffness and elasticity. Additionally, these metamaterials not only exhibit peculiar mechanical characteristics, but also present excellent biocompatibility, as demonstrated by the in vivo tests using male rats and the in vitro tests. These results suggest a wide range of potential clinical applications.
研究领域:
材料科学
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生物医学工程
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机械工程
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PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Lamei Du,Wei Shi,Han Gao,Hongxing Jia,Qiuting Zhang,Mingjie Liu,Ye Xu
Design of mechanical metamaterials with a negative Poisson's ratio (NPR), known as auxetics, is of great importance in the development of flexible electronics and tissue engineering. However, the mechanical performance of conventional auxetic metamaterials is largely hindered by the high porosity and lack of tunability, which restricts their practical engineering applications. Here, this study presents a programmable approach for designing integrated two-phase auxetic composite metamaterials with pore-free structure, robust interfaces, and customized mechanical properties by substituting the vacancy of the auxetic lattices (frame phase) with hydrogel-based soft fillers (matrix phase). Manipulated by two-phase stiffness contrast, integrated composite metamaterials exhibit a functional transition between auxetic and non-auxetic behaviors. Rationally designing Young's modulus ratios in spatial domains endows the programming of composite metamaterials with the desired spatial heterogeneity. Furthermore, the incorporation of temperature-responsive hydrogels to auxetic frames also enbles the development of dynamic programmable composites with the thermo-driven adaptability. As a practical application demonstration, designed programmable composites are used to dynamically tune the phononic bandgaps. The design strategy of integrated two-phase composite metamaterials paves the way for the development of advanced auxetic engineering materials with programmable mechanical properties, providing opportunity for conformal electronic patches, bio-scaffolds, and smart functionality applications.
研究领域:
材料科学
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生物医学工程
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高影响因子
OPTICAL AND QUANTUM ELECTRONICS
·
2017
·Vol. 49
·期 8
·258
·
IF 1.055
Zhang Huo,Li Zhi,Hu Fangrong,Chen Tao,Qin Binyi,Zhao Yonghong
In this thesis, we studied the characteristics and applications of a metamaterials resonator based on ohm-ring. In the range of 0.2–1.4 THz, the resonator exhibited two significant resonant peaks, which were shifted with different surface permittivity. We applied this feature to terahertz (THz) sensing. Under a same THz-TDS transmission system, the terahertz spectra of chlorpheniramine maleate could not reflect the content information at all when the concentration was <1%. But this information could be obtained with the aid of the resonator. Our work demonstrates that metamaterials is a sensitive tool for THz sensing, and have the promising potential for the detection for of small quantities of drug, which was hard to detect by direct THz sensing.
研究领域:
太赫兹技术
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传感器与传感
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超材料
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药物分析
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高影响因子
SENSORS AND ACTUATORS A-PHYSICAL
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2026
·
IF 5.1
Huo Zhang,Dajun Zhao,Xianhua Yin,Yuee Wang,Tao Chen,Zexi Chen
Designed and fabricated a terahertz metamaterial sensor capable of achieving an EIT-like effect. • Detected NAD at varying concentrations (0.1–500 μmol) using THz-TDS in conjunction with the metamaterial sensor. • Distinguished between NAD and NADH at different concentrations by analysing the enclosed area in radar plots. This study designed and fabricated a terahertz metamaterial sensor for detecting nicotinamide adenine dinucleotide (NAD) at varying concentrations. The sensor is investigated through both simulation and experiment. The top resonator layer and the bottom substrate are made of gold and silicon, respectively. Simulations reveal that the device exhibits an electromagnetically induced transparency - like (EIT-like) effect in its transmission spectrum, featuring a transparency window at 0.762 THz and two transmission valleys at 0.642 THz (Dip 1 ) and 0.894 THz (Dip 2 ). The calculated sensitivities at these three frequencies are 49 GHz/RIU, 68 GHz/RIU, and 63 GHz/RIU, respectively. When NAD solutions with concentrations ranging from 0.1 to 500 μmol were applied to the sensor surface, all three resonance frequencies exhibited concentration-dependent red shifts. Experimental results confirm the feasibility of the proposed metamaterial sensor integrated with terahertz time-domain spectroscopy (THz-TDS) for the rapid, high-sensitivity detection of NAD. This work provides a useful strategy for the rapid and non-destructive detection of trace analytes using terahertz metamaterial sensors. Download: Download high-res image (173KB) Download: Download full-size image
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Device
·
2025
·
IF 8
Wenhui Geng,Ying Zhou,Kang Huang,Yibin Ying,Lijuan Xie
Metamaterials can enhance a local electric field for molecular sensing. However, the difficulty in specifically recognizing target molecules and integrating multiple functionalities restricts their development. Here, we present a hierarchical metamaterial-based colorimetric-bionic sensor (HMm-CBs) using a layer-by-layer assembly method for multimodal molecular sensing. The CBs layers offer molecular recognition ability by enabling the specific perception of analytes, and the HMm layers provide coupling of vibrations between analyte molecules at the terahertz (THz) frequency. The HMm-CBs have broadband adaptability in controlling electromagnetic waves from optical to THz frequency. As a proof of principle, we designed a sensor for analyzing tetracycline hydrochlorides (TCHs). The sensor, in conjunction with a back propagation neural network (BPNN), identifies four types of TCHs. As a demonstration, a multichannel indicator is created for real-time monitoring of shrimp freshness and volatile metabolites.
研究领域:
纳米科技
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生物传感
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分析化学
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人工智能
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高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-14
·
IF 15.7
Wang Liqiang,Yin Di,Surjadi James Utama,Ding Junhao,Fu Huangliu,Zhou Xin,Li Rui,Chen Mengxue,Li Xinxin,Song Xu,Ho Johnny C.,Lu Yang
Developing highly active and robust catalysts remains a critical challenge for the industrial realization and implementation of nitrate reduction. Here, we proposed a screw dislocation-mediated three-dimensional (3D) printing strategy for scalable, integrated manufacturing of metamaterial catalysts. Specifically, screw dislocation was introduced into the 3D printing process to mediate the simultaneous synthesis of 3D architecture and chiral surface nanostructures, effectively eliminating conventional heterointerfaces. Additionally, severe strain effects induced by dislocation multiplication in curved spaces enhance intrinsic catalytic activity by promoting NO 3 − adsorption and lowering the energy barrier of NO 3 − -to-NH 3 conversion. Consequently, the FeCoNi dual-scale shell-lattice metamaterials with high dislocation density achieve a Faraday efficiency of 95.4%, an NH 3 yield rate of 20.58 mg h −1 cm −2 , and long-term stability exceeding 500 hours. A flow-through electrolyzer coupled with an acid absorption unit successfully produced NH 4 Cl fertilizer products. Our work opens a new perspective for advancing 3D printing technology in catalysis applications.
研究领域:
材料科学
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化学工程
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纳米技术
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电化学
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三维打印
·
催化
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PubMed
高影响因子
OPTICS EXPRESS
·
2018
·Vol. 26
·期 13
·17056-17065
·
IF 3.356
X. X. Zeng,R. Wang,X. Q. Xi,B. Li,J. Zhou
Terahertz (THz) radiation excites electronic and optical modes of many materials, and controlling interaction of these materials with THz pulses provides a fascinating avenue to achieve unprecedented functionalities in return. Here, woodpile-structured rare-earth orthoferrite metamaterials built with 3-D direct ink writing technology are proposed and experimentally demonstrated. Polarization-independent THz refraction and switching of resonances by varying the number of layers in the structure, as well as the structural parameters and specimen support angle are achieved. Such all-rare-earth-orthoferrite dielectric metamaterials are easy to fabricate and can be very promising in developing efficient and low cost THz functional metadevices.
研究领域:
材料科学
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光学工程
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纳米技术
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PubMed
高影响因子
APPLIED PHYSICS LETTERS
·
2018
·Vol. 113
·期 8
·
IF 3.495
Zeng Xinxi,Wang Rong,Xi Xiaoqing,Li Bo,Zhou Ji
The integration of terahertz waves with metamaterials has become a key goal in modern photonics. In this work, we designed grating-structured metamaterials and face-centered-cubic (fcc) metamaterials based on TbFeO 3 dielectric ceramics and built these materials using 3D direct writing technology. To simulate the behavior of the designed TbFeO 3 metamaterials, the dielectric constant of TbFeO 3 dielectric ceramic materials was determined. The desired strong electric and magnetic resonances were excited in the designed TbFeO 3 metamaterials. The grating-structured metamaterials showed increased polarization-dependent transmittance as the line spacing decreased, while the fcc metamaterial showed a deep transmission dip at low frequencies and an electromagnetically induced increase in transmittance at higher frequencies. An increase in the electrical resistance contributed to the increase in the transmission properties of the fcc TbFeO 3 metamaterial as its temperature decreased, while a reduction in the dielectric constant of TbFeO 3 simultaneously caused a blueshift in this metamaterial. When combined with 3D direct writing technology, TbFeO 3 , with its high dielectric constant and low loss characteristics, represents an inexpensive and promising step towards the production of the next generation of low-cost, easy-to-fabricate, all-dielectric metamaterials.
研究领域:
光学
·
材料科学
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高影响因子
Nano-Micro Letters
·
2022
·Vol. 14
·期 1
·1-14
·
IF 23.655
Zhou Rui,Wang Yansong,Liu Ziyu,Pang Yongqiang,Chen Jianxin,Kong Jie
Abstract Combining 3D printing with precursor-derived ceramic for fabricating electromagnetic (EM) wave-absorbing metamaterials has attracted great attention. This study presents a novel ultraviolet-curable polysiloxane precursor for digital light processing (DLP) 3D printing to fabricate ceramic parts with complex geometry, no cracks and linear shrinkage. Guiding with the principles of impedance matching, attenuation, and effective-medium theory, we design a cross-helix-array metamaterial model based on the complex permittivity constant of precursor-derived ceramics. The corresponding ceramic metamaterials can be successfully prepared by DLP printing and subsequent pyrolysis process, achieving a low reflection coefficient and a wide effective absorption bandwidth in the X-band even under high temperature. This is a general method that can be extended to other bands, which can be realized by merely adjusting the unit structure of metamaterials. This strategy provides a novel and effective avenue to achieve “target-design-fabricating” ceramic metamaterials, and it exposes the downstream applications of highly efficient and broad EM wave-absorbing materials and structures with great potential applications.
研究领域:
材料科学
·
电磁学
·
先进制造
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PubMed
高影响因子
ADVANCED MATERIALS
·
2023
·Vol. 35
·期 23
·2300116
·
IF 29.4
Yaowu Li,Peiyan Sun,Jian Chen,Xiuling Zha,Xueqing Tang,Zhiwei Chen,Yanan Zhang,Shan Cong,Fengxia Geng,Zhigang Zhao
The introduction of metamaterials into electrochromic (EC) displays has recently inspired a great breakthrough in the EC field, as this can offer a variety of new attractive features, from a very wide gamut of colors to very fast switching times. However, such metamaterial-based EC displays still face significant constraints when developing from single electrodes to full devices, because other supportive components in devices, such as counter electrodes and electrolytes, significantly affect light propagation and the subsequent perceived color quality in metamaterial-based EC devices. Herein, a new, cost-effective device design structured around a new type of porous metamaterial is reported to circumvent the critical problem in metamaterial-based EC displays. Owing to its unique design, the metamaterial-based EC device achieves good color quality with no drop in brightness or shift in color chromaticity when compared with a single electrode. Moreover, the porous-metamaterial-based EC device can exhibit non-iridescence and be viewed from a wide range of angles (5°–85°) and has fast switching response (2.4 and 2.5 s for coloration and bleaching, respectively), excellent cycling performance (at least 2000 cycles), and extremely low power consumption (4.0 mW cm −2 ).
研究领域:
材料科学
·
光学工程
·
显示技术
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DOI
PubMed
高影响因子
TRIBOLOGY INTERNATIONAL
·
2026
·
IF 7.6
Guanliang He,Chuang Zhu,Yuze Shi,Yingjia Yu,Yi Wu,Mengzhe Bao,Hanzhang Xu,Sergey Chizhik,Xuqing Liu
Self-lubricating aramid/PTFE fabric composites used in joint bearings can suffer from frictional heating because their through-thickness thermal transport is limited, which destabilizes friction and accelerates wear under high pressure–velocity (PV) conditions at elevated temperatures. Here, a polydopamine (PDA)-bridged ultrasonicated MXene (UT-MXene)/ carbon nanotube (CNTs)/ MoS₂ hybrid (MCM) was engineered to build a hierarchical thermo-tribological network within phenolic-bonded aramid/PTFE fabrics. Ultrasonication delaminated and fragmented Ti₃C₂Tₓ into UT-MXene nanofragments, while PDA served as an interfacial adhesive to anchor CNTs and MoS₂ and promote uniform integration in the composite. The optimized composite (7 wt% MCM, 6 h sonication) delivered an approximately twofold improvement in through-thickness thermal conductivity/thermal diffusivity and an increased tensile modulus. In severe dry pin-on-disk tests from room temperature to 150 °C, the MCM composite exhibited reduced and weakly temperature-dependent friction together with ultralow wear on the 10⁻¹ ⁶ m³ N⁻¹ m⁻¹ level. At 150 °C, the mean coefficient of friction decreased from 0.173 (Pure FC) to 0.137, while the wear rate dropped from 7.950 × 10⁻¹ ⁶ to 3.660 × 10⁻¹ ⁶ m³ N⁻¹ m⁻¹ . SEM/EDS analyses revealed a continuous transfer film enriched with UT-MXene nanofragments/CNTs/MoS₂, suggesting improved transfer-film integrity and heat dissipation under harsh sliding.
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高影响因子
Advanced Optical Materials
·
2026
·Vol. 14
·期 8
·e03858
·
IF 7.2
Hongbing Shi,Mengcheng Wang,Xiaole Ma,Di Wu,Li Jiang,Zhijuan Su,Faheng Zang
(Optical metamaterials like metalenses and metasurfaces show great potential for light manipulation. Their fabrication via integrated-circuit-compatible processes enables applications in quantum information processing, super-resolution imaging, and AR/VR displays, though most realized integrated metamaterials remain passive. Here, we report an active dynamic optical metamaterial that enables real-time tuning of the metamaterial's optical properties via thermal effects such as the thermal reflow effect, facilitating non-contact temperature monitoring on object surfaces. This study utilizes PDMS-assisted nanoimprint lithography to integrate diffractive optical elements (DOEs) on the chip. Differential light efficiencies across various diffraction orders are obtained when the sample is heated above the diffractive grating material's glass transition temperature. Specifically, the ratio of ±first-order diffraction efficiencies shift from 5:1 to 1:1, while the 0 th -order diffraction efficiency exhibits a 70% change. Thermal imaging mapping is subsequently conducted employing dynamically generated two-dimensional (2-D) diffraction patterns, facilitating large-scale, real-time, and precise non-contact temperature monitoring of objects. This work has provided an alternative route for real-time mapping of surface temperature without the need for characterization of material's thermal emission coefficient. It can potentially be used in studying the thermal distribution of a packaged semiconductor chip as well as monitoring the threshold temperature of any DOE-integrated industrial surfaces).
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高影响因子
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