Opto-Electronic Advances, Год журнала: 2025, Номер 0(0), С. 240280 - 240280
Опубликована: Янв. 1, 2025
Язык: Английский
Advanced Science, Год журнала: 2024, Номер 11(26)
Опубликована: Май 7, 2024
Abstract Electromagnetic (EM) metamaterials have garnered considerable attention due to their capacity achieve negative parameters, significantly influencing the integration of natural materials with artificially structural media. The emergence carbon aerogels (CAs) offers an opportunity create lightweight EM metamaterials, notable for promising shielding or absorption effects. This paper introduces efficient, low‐cost method fabricating CAs without requiring stringent drying conditions. By finely tuning ZnCl 2 /lignin ratio, porosity is controlled in CAs. control leads epsilon‐negative response radio‐frequency region, driven by intrinsic plasmonic state 3D network, as opposed traditional periodic building blocks. approach yields a tunable and weakly response, reaching order magnitude −10 3 under MHz frequencies. Equivalent circuit analysis highlights inductive characteristics CAs, correlating significant dielectric loss at low Additionally, simulations are performed evaluate distribution electric field vector showcasing potential effective shielding. lignin‐derived, hold promise pioneering new directions broadening application diverse extreme
Язык: Английский
Процитировано
43
ACS Nano, Год журнала: 2025, Номер unknown
Опубликована: Янв. 13, 2025
Optical metasurfaces, arrays of nanostructures engineered to manipulate light, have emerged as a transformative technology in both research and industry due their compact design exceptional light control capabilities. Their strong light–matter interactions enable precise wavefront modulation, polarization control, significant near-field enhancements. These unique properties recently driven application biomedical fields. In particular, metasurfaces led breakthroughs imaging technologies, such achromatic imaging, phase extended depth-of-focus imaging. They also advanced cutting-edge biosensing featuring high-quality factor resonators As the demand for device miniaturization system integration increases, are expected play pivotal role development next-generation devices. this review, we explore latest advancements use applications, with particular focus on sensing. Additionally, discuss future directions aimed at transforming field by leveraging full potential provide compact, high-performance solutions wide range applications.
Язык: Английский
Процитировано
10
Advanced Composites and Hybrid Materials, Год журнала: 2024, Номер 7(3)
Опубликована: Май 27, 2024
Язык: Английский
Процитировано
17
Advanced Materials, Год журнала: 2024, Номер 36(31)
Опубликована: Май 27, 2024
Abstract A crucial aspect in shielding a variety of advanced electronic devices from electromagnetic detection involves controlling the flow waves, akin to invisibility cloaks. Decades ago, exploration transformation optics heralded dawn modern cloaks, which has stimulated immense interest across various physical scenarios. However, most prior research is simplified low‐dimensional and stationary hidden objects, limiting their practical applicability dynamically changing world. This study develops 3D large‐scale intelligent cloak capable remaining undetectable even non‐stationary conditions. By employing thousand‐level reconfigurable full‐polarization metasurfaces, this work achieved an exceptionally high degree freedom sculpting scattering waves as desired. Serving core computational unit, hybrid inverse design enables cloaked vehicle respond real‐time, with rapid reaction time just 70 ms. These experiments integrate perception‐decision‐control‐execution system evaluate its performance under random static positions dynamic travelling trajectories, achieving background matching up 93.3%. findings establish general paradigm for next generation meta‐devices real‐world settings, potentially paving way era “Electromagnetic Internet Things.”
Язык: Английский
Процитировано
17
ACS Nano, Год журнала: 2024, Номер 18(34), С. 22734 - 22751
Опубликована: Авг. 15, 2024
Recent years have witnessed tremendous advances in machine learning techniques for wearable sensors and bioelectronics, which play an essential role real-time sensing data analysis to provide clinical-grade information personalized healthcare. To this end, supervised unsupervised algorithms emerged as powerful tools, allowing the detection of complex patterns relationships large, high-dimensional sets. In Review, we aim delineate latest advancements sensors, focusing on key developments algorithmic techniques, applications, challenges intrinsic evolving landscape. Additionally, highlight potential machine-learning approaches enhance accuracy, reliability, interpretability sensor discuss opportunities limitations emerging field. Ultimately, our work aims a roadmap future research endeavors exciting rapidly area.
Язык: Английский
Процитировано
16
Nano-Micro Letters, Год журнала: 2024, Номер 17(1)
Опубликована: Окт. 17, 2024
The incidence of large bone defects caused by traumatic injury is increasing worldwide, and the tissue regeneration process requires a long recovery time due to limited self-healing capability. Endogenous bioelectrical phenomena have been well recognized as critical biophysical factors in remodeling regeneration. Inspired bioelectricity, electrical stimulation has widely considered an external intervention induce osteogenic lineage cells enhance synthesis extracellular matrix, thereby accelerating With ongoing advances biomaterials energy-harvesting techniques, electroactive self-powered systems biomimetic approaches ensure functional recapitulating natural electrophysiological microenvironment healthy tissue. In this review, we first introduce role bioelectricity endogenous electric field summarize different techniques electrically stimulate Next, highlight latest progress exploring hybrid such triboelectric piezoelectric-based nanogenerators photovoltaic cell-based devices their implementation engineering. Finally, emphasize significance simulating target tissue's propose opportunities challenges faced bioelectronics for repair strategies.
Язык: Английский
Процитировано
15
Surfaces and Interfaces, Год журнала: 2024, Номер 48, С. 104223 - 104223
Опубликована: Апрель 5, 2024
Язык: Английский
Процитировано
10
Rare Metals, Год журнала: 2025, Номер unknown
Опубликована: Март 27, 2025
Язык: Английский
Процитировано
1
Nano Research, Год журнала: 2024, Номер 17(10), С. 8926 - 8941
Опубликована: Июнь 20, 2024
Язык: Английский
Процитировано
9
Advanced Science, Год журнала: 2024, Номер unknown
Опубликована: Сен. 24, 2024
Abstract Detection and anti‐detection with multispectral camouflage are of pivotal importance, while suffer from significant challenges due to the inherent contradiction between detection conflict microwave infrared (IR) stealth mechanisms. Here, a strategy is proposed asymmetrically control transmitted wavefront under radar‐IR bi‐stealth scheme using composite metasurface. It engineered composed layer (IRSL), absorbing (MAL), asymmetric transmissive structure (AMTS) polarization conversion top bottom. Therein, IR emissivity, reflectivity, transmissivity simultaneously modulated by elaborately designing filling ratio ITO square patches on IRSL, which ensures both efficient transmission camouflage. Furthermore, full‐polarized backward achieved MAL transmitting microwaves x ‐ y polarization, respectively, forward controlled precise curvature phase compensation AMTS according ray‐tracing technology. For verification, proof‐of‐concept metadevice numerically experimentally characterized. Both results coincide well, demonstrating spiral detective manipulation ‐polarized wave excitation effective reduction radar cross section within 8–18 GHz low emissivity (<0.3) for detection. This provides new paradigm integration
Язык: Английский
Процитировано
7