Yongfeng Mei
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View article: An Active, Multimodal Neural Interface for Real‐Time Monitoring of Cortical Electrical, Thermal, and Optical Dynamics
An Active, Multimodal Neural Interface for Real‐Time Monitoring of Cortical Electrical, Thermal, and Optical Dynamics Open
Chronic neurophysiological monitoring devices facilitate the timely diagnosis and treatment of episodic or recurrent neurological disorders. Compared with passive electrodes, silicon‐based active transistors provide intrinsic signal amplif…
View article: Waveguide Photoactuators: Materials, Fabrication, and Applications
Waveguide Photoactuators: Materials, Fabrication, and Applications Open
Waveguide photoactuators direct light through optical fibers or planar waveguides to stimuli‐responsive materials, converting optical energy into precise mechanical motion without the alignment constraints or undesired scattering of free‐s…
View article: Conformal integration of multifunctional nanomembranes on fibers towards intelligent optical platform
Conformal integration of multifunctional nanomembranes on fibers towards intelligent optical platform Open
Integrating materials onto optical fibers, enabling optical signal tuning during low-loss light transmission, is essential in optical communications, biosensors, and implantable devices. Such tuning, based on light-matter interaction, requ…
View article: Development of a Chip-Scale Optical Gyroscope with Weak Measurement Amplification Readout
Development of a Chip-Scale Optical Gyroscope with Weak Measurement Amplification Readout Open
The design of an integrated optical chip is proposed containing a rotation sensing ring resonator (optical gyroscope) coupled to an inverse weak value amplified Sagnac interferometer that amplifies the signal containing the phase informati…
View article: Giant nonlinearity in epitaxial graphene moiré superlattices for RF energy harvesting
Giant nonlinearity in epitaxial graphene moiré superlattices for RF energy harvesting Open
The nonlinear Hall effect (NLHE) in two-dimensional moiré superlattice materials offers promising opportunities for radio frequency (RF) energy harvesting, but challenges persist in achieving both room-temperature controllable NLHE and sca…
View article: MXene-enhanced hydrogel cardiac patch with high electrical conductivity, mechanical strength, and excellent biocompatibility
MXene-enhanced hydrogel cardiac patch with high electrical conductivity, mechanical strength, and excellent biocompatibility Open
View article: A Review on Reactor Design and Surface Modification of Atomic Layer Deposition for Functional Nanoparticles
A Review on Reactor Design and Surface Modification of Atomic Layer Deposition for Functional Nanoparticles Open
Atomic layer deposition (ALD) has emerged as a promising method for surface modification of functional nanoparticles, enabling the versatile applications in energy, catalysis, and human health. The self‐limiting surface chemistry of ALD al…
View article: Technology Roadmap of Micro/Nanorobots
Technology Roadmap of Micro/Nanorobots Open
Inspired by Richard Feynman's 1959 lecture and the 1966 film Fantastic Voyage, the field of micro/nanorobots has evolved from science fiction to reality, with significant advancements in biomedical and environmental applications. De…
View article: Terrestrial locomotion of microscopic robots enabled by 3D nanomembranes with nonreciprocal shape morphing
Terrestrial locomotion of microscopic robots enabled by 3D nanomembranes with nonreciprocal shape morphing Open
Microscopic robots exhibit efficient locomotion in liquids by leveraging fluid dynamics and chemical reactions to generate force asymmetry, thereby enabling critical applications in photonics and biomedicine. However, achieving controllabl…
View article: Massive discovery of crystal structures across dimensionalities by leveraging vector quantization
Massive discovery of crystal structures across dimensionalities by leveraging vector quantization Open
Discovering new functional crystalline materials through computational methods remains a challenge in materials science. We introduce VQCrystal, a deep learning framework leveraging discrete latent representations to overcome key limitatio…
View article: Seeking to Collide: Online Safety-Critical Scenario Generation for Autonomous Driving with Retrieval Augmented Large Language Models
Seeking to Collide: Online Safety-Critical Scenario Generation for Autonomous Driving with Retrieval Augmented Large Language Models Open
Simulation-based testing is crucial for validating autonomous vehicles (AVs), yet existing scenario generation methods either overfit to common driving patterns or operate in an offline, non-interactive manner that fails to expose rare, sa…
View article: Ultra-flexible graphene-metal nanomembrane for wireless applications
Ultra-flexible graphene-metal nanomembrane for wireless applications Open
The advancement of wireless communication raises the demand for flexible, high-performance RF antennas for wearable electronics and flexible communication devices. Traditional approaches focused on reducing the thickness of metal films to …
View article: Abnormal beam steering with kirigami reconfigurable metasurfaces
Abnormal beam steering with kirigami reconfigurable metasurfaces Open
View article: Transformer-generated atomic embeddings to enhance prediction accuracy of crystal properties with machine learning
Transformer-generated atomic embeddings to enhance prediction accuracy of crystal properties with machine learning Open
Accelerating the discovery of novel crystal materials by machine learning is crucial for advancing various technologies from clean energy to information processing. The machine-learning models for prediction of materials properties require…
View article: Remote epitaxy and exfoliation of vanadium dioxide via sub-nanometer thick amorphous interlayer
Remote epitaxy and exfoliation of vanadium dioxide via sub-nanometer thick amorphous interlayer Open
View article: Recent Progress of Soft and Bioactive Materials in Flexible Bioelectronics
Recent Progress of Soft and Bioactive Materials in Flexible Bioelectronics Open
Materials that establish functional, stable interfaces to targeted tissues for long-term monitoring/stimulation equipped with diagnostic/therapeutic capabilities represent breakthroughs in biomedical research and clinical medicine. A funda…
View article: ScRNA-seq and Experimental Analyses Unveil Lrg1 Regulating the Oxidative Phosphorylation Pathway to Affect Neutrophil Accumulation after Cerebral Ischemia-Reperfusion
ScRNA-seq and Experimental Analyses Unveil Lrg1 Regulating the Oxidative Phosphorylation Pathway to Affect Neutrophil Accumulation after Cerebral Ischemia-Reperfusion Open
View article: Optimization of Pulsed Plasma Arc Welding Parameters for High-Quality Joints in 2024 Aluminum Alloy Thin Sheets
Optimization of Pulsed Plasma Arc Welding Parameters for High-Quality Joints in 2024 Aluminum Alloy Thin Sheets Open
View article: Atomic Layer Deposition of Alumina and Zinc Oxide Nanofilms on Ceria Nanoparticles Using a Custom Fluidized Bed Reactor for Tunable Ultraviolet Blocking Property
Atomic Layer Deposition of Alumina and Zinc Oxide Nanofilms on Ceria Nanoparticles Using a Custom Fluidized Bed Reactor for Tunable Ultraviolet Blocking Property Open
View article: MXene-Enhanced Hydrogel Cardiac Patch with High Electrical Conductivity, Mechanical Strength, and Excellent Biocompatibility
MXene-Enhanced Hydrogel Cardiac Patch with High Electrical Conductivity, Mechanical Strength, and Excellent Biocompatibility Open
View article: Flexible bioelectronic systems with large-scale temperature sensor arrays for monitoring and treatments of localized wound inflammation
Flexible bioelectronic systems with large-scale temperature sensor arrays for monitoring and treatments of localized wound inflammation Open
Continuous monitoring and closed-loop therapy of soft wound tissues is of particular interest in biomedical research and clinical practices. An important focus is on the development of implantable bioelectronics that can measure time-depen…
View article: Graphene Readout Silicon‐Based Microtube Photodetectors for Encrypted Visible Light Communication
Graphene Readout Silicon‐Based Microtube Photodetectors for Encrypted Visible Light Communication Open
The implementation of an advanced light receiver is imperative for the widespread application of visible light communication. However, the integration of multifunctional and high‐performance visible light receivers is still limited by devi…
View article: Soft wearable electronics for evaluation of biological tissue mechanics
Soft wearable electronics for evaluation of biological tissue mechanics Open
Flexible wearable devices designed to evaluate the biomechanical properties of deep tissues not only facilitate continuous and effective monitoring in basic performance but also exhibit significant potential in broader disease assessments.…
View article: Ultrathin crystalline silicon–based omnidirectional strain gauges for implantable/wearable characterization of soft tissue biomechanics
Ultrathin crystalline silicon–based omnidirectional strain gauges for implantable/wearable characterization of soft tissue biomechanics Open
Monitoring soft-tissue biomechanics is of interest in biomedical research and clinical treatment of diseases. An important focus is biointegrated strain gauges that track time-dependent mechanics of targeted tissues with deforming surfaces…
View article: VQCrystal: Leveraging Vector Quantization for Discovery of Stable Crystal Structures
VQCrystal: Leveraging Vector Quantization for Discovery of Stable Crystal Structures Open
Discovering functional crystalline materials through computational methods remains a formidable challenge in materials science. Here, we introduce VQCrystal, an innovative deep learning framework that leverages discrete latent representati…
View article: Publisher Correction: Single-crystalline metal-oxide dielectrics for top-gate 2D transistors
Publisher Correction: Single-crystalline metal-oxide dielectrics for top-gate 2D transistors Open
View article: CMOS-compatible reconstructive spectrometers with self-referencing integrated Fabry–Perot resonators
CMOS-compatible reconstructive spectrometers with self-referencing integrated Fabry–Perot resonators Open
Miniaturized reconstructive spectrometers play a pivotal role in on-chip and portable devices, offering high-resolution spectral measurement through precalibrated spectral responses and AI–driven reconstruction. However, two key challenges…
View article: Single-crystalline metal-oxide dielectrics for top-gate 2D transistors
Single-crystalline metal-oxide dielectrics for top-gate 2D transistors Open
View article: Atomic layer deposition of Al-doped ZnO nanomembrane with <i>in situ</i> monitoring
Atomic layer deposition of Al-doped ZnO nanomembrane with <i>in situ</i> monitoring Open
Due to shortcomings such as poor homogeneity of Al doping, precisely controlling the thickness, inability to conformally deposit on high aspect ratio devices and high pinhole rate, the applications of Al-doped ZnO (AZO) nanomembrane in int…
View article: Enhanced photothermoelectric conversion in self-rolled tellurium photodetector with geometry-induced energy localization
Enhanced photothermoelectric conversion in self-rolled tellurium photodetector with geometry-induced energy localization Open
Photodetection has attracted significant attention for information transmission. While the implementation relies primarily on the photonic detectors, they are predominantly constrained by the intrinsic bandgap of active materials. On the o…