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| Open AccessUnraveling the synergistic effects of Cu-Ag tandem catalysts during electrochemical CO2 reduction using nanofocused X-ray probes
Combining in situ nanoprobe techniques paves the way for gaining insights into structure-selectivity relations for electrocatalysts. Herein, the dynamic evolution of lattice strain in individual nanoparticles is directly visualized with nanoscale resolution in Cu-Ag tandem catalysts during the electrocatalytic conversion of CO2 into value-added chemicals.
- Marvin L. Frisch
- , Longfei Wu
- & Peter Strasser
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Article
| Open AccessEnhancement of short/medium-range order and thermal conductivity in ultrahard sp3 amorphous carbon by C70 precursor
sp3 amorphous carbon exhibits exceptional mechanical, thermal, and optical properties, but cannot be synthesized using traditional processes. Here authors report a nearly pure sp3−hybridized amorphous carbon synthesized from C70 which shows more short/medium-range order and enhanced thermal conductivity compared to C60.
- Yuchen Shang
- , Mingguang Yao
- & Bingbing Liu
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Article
| Open AccessProton and molecular permeation through the basal plane of monolayer graphene oxide
GO monolayers are presumed to invariably contain a large density of nanoscale pinholes. Here the authors present gas and proton transport measurements which show that GO monolayers can be pinhole-free over micrometer-scale areas.
- Z. F. Wu
- , P. Z. Sun
- & M. Lozada-Hidalgo
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Article
| Open AccessCryogenic multiplexing using selective area grown nanowires
The authors demonstrate a large ensemble of quantum dots which is characterized using a cryogenic multiplexer-demultiplexer circuit based on selective area growth nanowires, establishing the feasibility of scaling future quantum circuits.
- Dāgs Olšteins
- , Gunjan Nagda
- & Thomas S. Jespersen
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Article
| Open AccessLocal probe-induced structural isomerization in a one-dimensional molecular array
Achieving unit-by-unit isomerization within a molecular array poses a significant challenge in chemistry. Here, the authors demonstrate tip-induced stereoisomerization of dehydroazulene and diradical units in three-dimensional organometallic compounds on Ag(111).
- Shigeki Kawai
- , Orlando J. Silveira
- & Adam S. Foster
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| Open AccessThe role of halogens in Au–S bond cleavage for energy-differentiated catalysis at the single-bond limit
Investigation of the reaction process at the single-bond interface is key to understanding the catalytic reaction mechanism. Here, the authors develop a STM-BJ method to monitor the catalytic process from the perspective of single-bond energy.
- Peihui Li
- , Songjun Hou
- & Xuefeng Guo
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Article
| Open AccessSelf-activated superhydrophilic green ZnIn2S4 realizing solar-driven overall water splitting: close-to-unity stability for a full daytime
A superhydrophilic green hollow ZnIn2S4 was fabricated to realize unassisted photocatalytic overall water splitting. This work could provide an innovative aperture for efficient solar-driven green hydrogen production to achieve carbon neutrality.
- Wei-Kean Chong
- , Boon-Junn Ng
- & Siang-Piao Chai
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Article
| Open Access3D bioprinted multilayered cerebrovascular conduits to study cancer extravasation mechanism related with vascular geometry
Geometrical complexities of blood vessels alter biophysical behaviors of circulating tumor cells, influencing cancer metastasis. Here, the authors develop a 3D bioprinted in vitro brain blood vessel-on-a-chip to investigate continuities between vascular geometry and metastatic cancer development.
- Wonbin Park
- , Jae-Seong Lee
- & Dong-Woo Cho
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Article
| Open AccessAutonomous nanorobots with powerful thrust under dry solid-contact conditions by photothermal shock
Optically trapping objects, marked by Nobel Prizes in 1997 and 2018 for applications in vacuum and liquids, remains challenging on solid surfaces. Here, the authors demonstrate a breakthrough by using photothermal-shock tweezers and explore nano-conventional robot applications
- Zhaoqi Gu
- , Runlin Zhu
- & Fuxing Gu
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Article
| Open AccessThermal and electrostatic tuning of surface phonon-polaritons in LaAlO3/SrTiO3 heterostructures
Phonon polaritons are promising for infrared applications while it is difficult to tune the phonon polariton properties. Here, authors report a thermal and electrostatic tuning of surface phonon polaritons in heterostructures of LaAlO3/SrTiO3.
- Yixi Zhou
- , Adrien Waelchli
- & Alexey B. Kuzmenko
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Article
| Open AccessPosition error-free control of magnetic domain-wall devices via spin-orbit torque modulation
For magnetic domain-wall devices, key issue to be addressed is nonstochastic displacement of magnetic domain wall. Here, authors report domain-wall control with a position error-free scheme via spin-orbit torque modulation along nanotrack devices.
- Seong-Hyub Lee
- , Myeonghoe Kim
- & Sug-Bong Choe
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Article
| Open AccessDNA T-shaped crossover tiles for 2D tessellation and nanoring reconfiguration
DNA tiles lay the foundation for programmable self-assembly of diverse DNA nanostructures. Here, the authors present a set of T-shaped crossover DNA tiles for various 2D tessellation and nanoring reconfiguration.
- Qi Yang
- , Xu Chang
- & Fei Zhang
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Article
| Open AccessMicroscopic theory, analysis, and interpretation of conductance histograms in molecular junctions
Conductance histograms are common setups to study molecular junctions, but the dispersion of the signals makes it difficult to interpret at microscopic level. Here the authors develop a physical model of molecular junctions that connects this observable with molecular properties.
- Leopoldo Mejía
- , Pilar Cossio
- & Ignacio Franco
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Article
| Open AccessUltrathin covalent organic overlayers on metal nanocrystals for highly selective plasmonic photocatalysis
Controlling molecular interactions on metal surfaces for selective chemical synthesis remains difficult to achieve. Here, we report thin, porous covalent organic overlayers on metal nanocrystals to improve selectivity through plasmonic activation.
- Anubhab Acharya
- , Trimbak Baliram Mete
- & In Su Lee
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Article
| Open AccessInterfacial alloying between lead halide perovskite crystals and hybrid glasses
MOF glass nanocomposites allow researchers to study lead halide perovskites’ bulk and interfacial regions in relation to their optoelectronic properties. Here authors provide insights for the advancement of stable and efficient perovskite optoelectronic devices design.
- Xuemei Li
- , Wengang Huang
- & Jingwei Hou
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Article
| Open AccessBringing uncertainty quantification to the extreme-edge with memristor-based Bayesian neural networks
Bayesian networks gain importance in safety-critical applications. Authors conducted experiments with a memristor-based Bayesian network trained with variational inference with technological loss, achieving accurate heartbeats classification and prediction certainty.
- Djohan Bonnet
- , Tifenn Hirtzlin
- & Elisa Vianello
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Article
| Open AccessSingle PbS colloidal quantum dot transistors
Colloidal quantum dots remain unexplored for applications in single-electron devices. Here, the authors demonstrate single-electron transistors using single PbS colloidal quantum dot, highlighting their room-temperature operation.
- Kenji Shibata
- , Masaki Yoshida
- & Yoshihiro Iwasa
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Article
| Open AccessDefect-driven nanostructuring of low-nuclearity Pt-Mo ensembles for continuous gas-phase formic acid dehydrogenation
Precise design of bimetallic low-nuclearity catalysts is challenging. Here, the authors report a defect-driven nanostructuring strategy combining defect engineering of nitrogen-doped carbons and sequential metal depositions, yielding a series of platinum and molybdenum ensembles in the sub-nano regime.
- Luyao Guo
- , Kaixuan Zhuge
- & Yunjie Ding
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Article
| Open AccessAmphibious epidermal area networks for uninterrupted wireless data and power transfer
Body area networks represent a wearable technology suitable for applications like virtual reality and health monitoring. Here, the study presents a wireless battery-free channel that works reliably in harsh environments, including underwater. It utilizes stretchable magneto-inductive metamaterials to enable uninterrupted communication.
- Amirhossein Hajiaghajani
- , Patrick Rwei
- & Peter Tseng
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| Open AccessLattice-mismatch-free construction of III-V/chalcogenide core-shell heterostructure nanowires
A versatility growth strategy is developed for the lattice-mismatch-free construction of core-shell heterostructure NWs by adopting the promising III-V semiconductors and amorphous chalcogenide semiconductors using simple chemical vapor deposition.
- Fengjing Liu
- , Xinming Zhuang
- & Zai-xing Yang
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Article
| Open AccessPhase biasing of a Josephson junction using Rashba–Edelstein effect
The authors study transport in Nb-(Pt/Cu)-Nb Josephson junctions (JJ), where Pt/Cu is a Rashba interface. Due to the Rashba–Edelstein effect, a charge current leads to a non-equilibrium spin moment at the Pt/Cu interface, which can be measured from a shift of the Fraunhofer pattern of the JJ.
- Tapas Senapati
- , Ashwin Kumar Karnad
- & Kartik Senapati
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Article
| Open AccessTopotactically transformable antiphase boundaries with enhanced ionic conductivity
Antiphase boundaries (APBs) have been considered major obstacles to optimizing the ionic conductivity of conductors. Here authors reveal that ionic conductivity can be enhanced through engineering APBs by topotactical transformation at the atomic scale.
- Kun Xu
- , Shih-Wei Hung
- & Jing Zhu
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| Open AccessAccelerating multielectron reduction at CuxO nanograins interfaces with controlled local electric field
Controlling the kinetics and thermodynamics of electrochemical processes is essential to achieve high-performance multielectron reduction. Here, the authors report laser-induced copper bipyramids with abundant nanograins and controlled tip angles for enhanced multielectron CO2 and nitrate reduction.
- Weihua Guo
- , Siwei Zhang
- & Ruquan Ye
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Article
| Open AccessEngineering chirality at wafer scale with ordered carbon nanotube architectures
Methods for generating macroscopic chiral matter struggle with limited scalability. Here, the authors show two vacuum filtration methods - twist stacking and mechanical rotation - to align carbon nanotubes into chiral structures at wafer scale with tunable circular dichroism.
- Jacques Doumani
- , Minhan Lou
- & Weilu Gao
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Article
| Open AccessMultiplexed detection of viral antigen and RNA using nanopore sensing and encoded molecular probes
Fast discrimination of SARS-CoV-2 variants in clinical samples remains a challenge. Here, authors report on single molecule nanopore sensing combined with DNA molecular probes to simultaneously detect various antigens and RNA mutations of SARS-CoV-2 variants in patient samples.
- Ren Ren
- , Shenglin Cai
- & Joshua B. Edel
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Article
| Open AccessA robotic sensory system with high spatiotemporal resolution for texture recognition
Artificial sensory systems are typically limited by their performance and response to static and dynamic stimuli. Here, Bai et al. propose an iontronic slip-sensor, which responds to both static pressure and high-frequency vibrations up to 400 Hz, achieving high spatiotemporal resolution for texture recognition.
- Ningning Bai
- , Yiheng Xue
- & Chuan Fei Guo
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Article
| Open AccessNanomedicine-based co-delivery of a calcium channel inhibitor and a small molecule targeting CD47 for lung cancer immunotherapy
Lung cancer is characterized by an immunosuppressive microenvironment, limiting responses to immunotherapies. Here the authors report the design of a pH-responsive nanomedicine for the co-delivery of a T-type calcium channel inhibitor and of a small molecule targeting CD47, promoting anti-tumor immune responses in orthotopic lung cancer preclinical models.
- Yuedong Guo
- , Qunqun Bao
- & Jianlin Shi
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Article
| Open AccessDiatomic iron nanozyme with lipoxidase-like activity for efficient inactivation of enveloped virus
Enveloped viruses encased within a lipid bilayer membrane are highly contagious and cause diseases like influenza and COVID-19, so strategies for their prevention and inactivation are needed. Here, the authors develop a diatomic iron nanozyme with lipoxidase-like activity for the inactivation of enveloped viruses, where the diatomic iron sites destroy the viral envelope via lipid peroxidation.
- Beibei Li
- , Ruonan Ma
- & Yadong Li
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Article
| Open AccessDynamic construction of refractive index-dependent vibrations using surface plasmon-phonon polaritons
Molecular vibrations serve as valuable signatures for the constituent elements and bonding in compounds. Here, using Surface-Enhanced Infrared Absorption spectroscopy, the authors study refractive index dependent vibrations of surface phonon polaritons and surface plasmon platform, targeting dynamic biomonitoring.
- Hong Zhou
- , Zhihao Ren
- & Chengkuo Lee
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Article
| Open AccessCondensation of preformed charge density waves in kagome metals
The mechanism of the charge density wave in AV3Sb5 kagome metals is still actively discussed. Using large-scale molecular dynamics simulations, the authors propose a mechanism of the transition based on the condensation of preformed charge-ordered states and resolve several outstanding experimental issues.
- Changwon Park
- & Young-Woo Son
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Article
| Open AccessVisualizing ultrafast photothermal dynamics with decoupled optical force nanoscopy
Diving deep into material insights, the authors introduce the ‘Decoupled Optical Force Nanoscopy’. This innovation uncovers the physical origins of light induced forces and captures dynamic thermal details with unparalleled nanometer precision.
- Hanwei Wang
- , Sean M. Meyer
- & Yang Zhao
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Article
| Open AccessUnraveling the optoelectronic properties of CoSbx intrinsic selective solar absorber towards high-temperature surfaces
The efficiency of CoSbx (where 2 < x < 3) as a selective solar absorber is investigated. Here, authors demonstrate that CoSbx endows broadband solar absorption (0.96) and simultaneous low emissivity (0.18), making it a promising material for use in solar energy systems.
- Anastasiia Taranova
- , Kamran Akbar
- & Alberto Vomiero
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Article
| Open AccessSphingomyelin-derived nanovesicles for the delivery of the IDO1 inhibitor epacadostat enhance metastatic and post-surgical melanoma immunotherapy
Epacadostat is a selective IDO1 inhibitor shown to promote anti-tumor immune responses in preclinical models, however it has failed in a Phase III clinical trial for treating metastatic melanoma. Here the authors design a sphingomyelin-derived nanovesicle system for epacadostat delivery with improved pharmacokinetics and anti-tumor activity when combined with a PD-1 inhibitor in melanoma preclinical models.
- Zhiren Wang
- , Wenpan Li
- & Jianqin Lu
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Article
| Open Access2D quasi-layered material with domino structure
Interlayer coupling strength classifies 2D materials into layered and non-layered types. Here authors introduce the concept of quasi-layered domino-structured materials, the interlayer of which have a synergistic blend of vdW forces and covalent bonds.
- Haihui Lan
- , Luyang Wang
- & Lei Fu
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Article
| Open AccessLocal control of superconductivity in a NbSe2/CrSBr van der Waals heterostructure
Two-dimensional magnets and superconductors are emerging as tunable building blocks for quantum computing and superconducting spintronic devices. Here, Jo et al. demonstrate NbSe2/CrSBr van der Waals superconducting spin valves that exhibit infinite magnetoresistance and nonreciprocal charge transport, arising from a unique metamagnetic transition in CrSBr.
- Junhyeon Jo
- , Yuan Peisen
- & Luis E. Hueso
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Article
| Open AccessSpatial exosome analysis using cellulose nanofiber sheets reveals the location heterogeneity of extracellular vesicles
Extracellular vesicles (EVs) are known to be heterogeneous intravitally. Here, we present cellulose nanofiber sheets which capture EVs with high purity from trace volumes of biofluids and enable analysis of location-dependent heterogeneity to enhance understanding of pathological mechanisms and enable diagnostic readouts.
- Akira Yokoi
- , Kosuke Yoshida
- & Takao Yasui
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Article
| Open AccessMultipole engineering by displacement resonance: a new degree of freedom of Mie resonance
Mie resonances are typically manipulated through varying nanostructure shape/size. Here, authors found that Gaussian beam displacement excites higher-order multipolar modes, not accessible by plane wave, featuring maximal linear and nonlinear scattering efficiency when the focus is misaligned.
- Yu-Lung Tang
- , Te-Hsin Yen
- & Shi-Wei Chu
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Article
| Open AccessProbabilistic computing with NbOx metal-insulator transition-based self-oscillatory pbit
Probabilistic computing has recently emerged as a promising energy-based computing system for solving non-deterministic polynomial-time-hard (NP-hard) problems. Here the authors develop a novel pbit unit, using NbOx volatile memristor, in which a self-clocking oscillator harnesses noise-induced metal-insulator transition, enabling high-performance probabilistic computing.
- Hakseung Rhee
- , Gwangmin Kim
- & Kyung Min Kim
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Article
| Open AccessAccessible hotspots for single-protein SERS in DNA-origami assembled gold nanorod dimers with tip-to-tip alignment
The identification of individual proteins is highly desirable in diagnostics. Here, the authors report on DNA-origami assembled dimers of gold nanorod with accessible hotspots to capture and identify single proteins from solution by SERS.
- Francis Schuknecht
- , Karol Kołątaj
- & Theobald Lohmueller
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Article
| Open AccessHigh-speed mapping of surface charge dynamics using sparse scanning Kelvin probe force microscopy
Dynamic mapping of charge motion across multiple length- and timescales is essential for understanding a variety of phenomena. Here, the authors introduce sparse scanning KPFM, which enables fast nanoscale charge mapping at 3 frames per second to track ion migration.
- Marti Checa
- , Addis S. Fuhr
- & Liam Collins
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Article
| Open AccessPathogenesis-adaptive polydopamine nanosystem for sequential therapy of ischemic stroke
Reperfusion is a main strategy for restoring blood supply after ischemic stroke, but it induces neuroinflammation that undergoes dynamic progression, hindering the treatment of ischemic stroke. Here, the authors report a pathogenesis-adaptive nanosystem for sequential and on-demand regulation of reperfusion-induced dynamic neuroinflammation for ischemic stroke therapy.
- Di Wu
- , Jing Zhou
- & Zhong Chen
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Article
| Open AccessBioinspired porous three-coordinated single-atom Fe nanozyme with oxidase-like activity for tumor visual identification via glutathione
It is needed yet difficult to achieve a strategy for synthesizing single-atom nanozymes that integrate atomic metal dispersion, elevated mass transport and tailorable coordination environment. Here, the authors address this issue by developing a biomimetic synthetic strategy and demonstrate the application of the resultant single-atom Fe nanozymes for tumor visual identification.
- Da Chen
- , Zhaoming Xia
- & Yongquan Qu
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Article
| Open AccessMonolithic three-dimensional integration of RRAM-based hybrid memory architecture for one-shot learning
Designing efficient 3D artificial neural networks chip remains a challenge. Here, the authors report a M3D-LIME chip with monolithic three-dimensional integration of hybrid memory architecture based on resistive random-access memory, which achieves a high classification accuracy of 96% in one-shot learning task while exhibiting 18.3× higher energy efficiency than GPU.
- Yijun Li
- , Jianshi Tang
- & Huaqiang Wu
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Article
| Open AccessDeveloping Ni single-atom sites in carbon nitride for efficient photocatalytic H2O2 production
Here, the authors explore how Ni single-atom sites on carbon nitride evolve under photocatalytic conditions. They show that this evolution plays a pivotal role in enhancing photocatalytic H2O2 production.
- Xu Zhang
- , Hui Su
- & Kun Zheng
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Article
| Open AccessA computational model for structural dynamics and reconfiguration of DNA assemblies
Computational frameworks for structural dynamics are in continuous need of being developed. Here the authors present a a computational framework based on Langevin dynamics to analyze structural dynamics and reconfiguration of DNA assemblies, offering a rational method for designing responsive and reconfigurable DNA machines
- Jae Young Lee
- , Heeyuen Koh
- & Do-Nyun Kim
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Article
| Open AccessTunable Tamm plasmon cavity as a scalable biosensing platform for surface enhanced resonance Raman spectroscopy
The researchers present a scalable Tamm plasmon cavity using phase change material with large resonance tunability and demonstrated tunable SERS by matching the plasmonic resonance with the molecule absorption for sensitivity enhanced biosensing.
- Kandammathe Valiyaveedu Sreekanth
- , Jayakumar Perumal
- & Jinghua Teng
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Article
| Open AccessRealizing reversible phase transformation of shape memory ceramics constrained in aluminum
Achieving reversible phase transformation of shape memory ceramics (SMCs) in a densified composite can have scientific and technological impacts, but is challenging. Here, the authors demonstrate the reversible martensitic transformation of SMCs confined in aluminum without destructive impact.
- Wangshu Zheng
- , Yan Shi
- & Qiang Guo
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Article
| Open AccessDispersion engineered metasurfaces for broadband, high-NA, high-efficiency, dual-polarization analog image processing
Here the authors demonstrate a path to design metasurfaces that perform broadband, high-NA, high-efficiency and dual-polarization edge detection without using bulky 4 f systems. This work introduces new approaches towards passive, ultra-compact optical computing and image processing.
- Michele Cotrufo
- , Akshaj Arora
- & Andrea Alù
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Article
| Open AccessThe ultra-thin, minimally invasive surface electrode array NeuroWeb for probing neural activity
Minimal invasiveness and robust signal detection are required in neural probes. Here, the authors develop NeuroWeb, an ultra-thin, minimally invasive surface electrode array. In vivo electrophysiological and optogenetic experiments show single-unit activity of neurons with high signal-to-noise ratio.
- Jung Min Lee
- , Young-Woo Pyo
- & Hong-Gyu Park