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A genetic circuit on a single DNA molecule as an autonomous dissipative nanodevice
Achieving genetic circuits on single DNA molecules could have varied applications. Here, authors observed proteins emerging from single DNA molecules through coupled transcription-translation complexes, and show that nascent proteins lingered on DNA, regulating cascaded reactions on the same DNA and allowing the design of a pulsatile genetic circuit.
- Ferdinand Greiss
- , Nicolas Lardon
- & Roy Bar-Ziv
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| Open Access
Switchable unidirectional emissions from hydrogel gratings with integrated carbon quantum dots
Directional emission of photoluminescence is an emerging technique for light-emitting fields and nanophotonics. Here, the authors demonstrate a hydrogel grating with integrated quantum dots for switchable unidirectional emission tuning.
- Chenjie Dai
- , Shuai Wan
- & Zhongyang Li
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Highly loaded bimetallic iron-cobalt catalysts for hydrogen release from ammonia
Inexpensive iron catalysts often exhibit low activity in ammonia decomposition due to a strong iron-nitrogen binding energy. Here the authors demonstrate that combining iron with cobalt to form a Fe-Co bimetallic catalyst overcomes this limitation, presenting a promising solution for enhancing ammonia decomposition efficiency.
- Shilong Chen
- , Jelena Jelic
- & Malte Behrens
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A nanoparticle-based sonodynamic therapy reduces Helicobacter pylori infection in mouse without disrupting gut microbiota
Here, the authors develop a non-antibiotic approach using sonodynamic therapy mediated by a lecithin bilayer-coated poly(lactic-co-glycolic) nanoparticle preloaded with verteporfin, Ver-PLGA@Lecithin, to treat Helicobacter pylori.
- Tao Liu
- , Shuang Chai
- & Lihua Yang
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Non-invasive transdermal delivery of biomacromolecules with fluorocarbon-modified chitosan for melanoma immunotherapy and viral vaccines
Different approaches have been described for the transdermal delivery of drugs. Here the authors report the design of a fluorocarbon modified chitosan-based non-invasive transdermal platform for the delivery of biomacromolecules, such as viral antigens for vaccines or immune checkpoint inhibitors for melanoma immunotherapy.
- Wenjun Zhu
- , Ting Wei
- & Zhuang Liu
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Accurate prediction of the optical properties of nanoalloys with both plasmonic and magnetic elements
The optical properties of nanoalloys are complex and difficult to describe. Here, the authors use density functional and Mie theory to calculate the extinction of Au-Co and other nanoalloys of interest for quantum optics, magnetooptics, catalysis, and metamaterials.
- Vito Coviello
- , Denis Badocco
- & Vincenzo Amendola
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Boosting the electron beam transmittance of field emission cathode using a self-charging gate
Gate-type field emission cathodes based on carbon nanotubes face challenges of achieving high E-beam transmittance to avoid the collision with the gate to form irreversible damages. Here, the authors present a self-charging gate to control the E-beam trajectory by inducing a local electric field.
- Dongyang Xiao
- , Huanhuan Du
- & Peiyi Song
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Photocatalytic ethylene production by oxidative dehydrogenation of ethane with dioxygen on ZnO-supported PdZn intermetallic nanoparticles
The selective oxidative dehydrogenation of ethane is attracting increasing attention as a method for ethylene production. Here, PdZn supported on ZnO affords record-breaking photocatalytic ethane-to-ethylene conversion rate, emphasizing the pivotal role of the interface between PdZn and ZnO in the process.
- Pu Wang
- , Xingyu Zhang
- & Tierui Zhang
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| Open Access
Noise learning of instruments for high-contrast, high-resolution and fast hyperspectral microscopy and nanoscopy
Improving signal to noise ratio of Raman spectra is vital for the application. Here, authors show a noise learning method that learns the noise feature of a spectrometer. This improves the signal to noise ratio and makes deep learning to be instrument dependent instead of sample dependent.
- Hao He
- , Maofeng Cao
- & Bin Ren
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Pulse irradiation synthesis of metal chalcogenides on flexible substrates for enhanced photothermoelectric performance
Here, the authors report a low-temperature pulse irradiation synthesis method to prepare thermoelectric metal chalcogenide (Bi2Se3, SnSe2 and Bi2Te3) thin films on various flexible substrates, showing their application for the realization of broadband photothermoelectric detectors.
- Yuxuan Zhang
- , You Meng
- & Johnny C. Ho
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| Open Access
Toward grouped-reservoir computing: organic neuromorphic vertical transistor with distributed reservoir states for efficient recognition and prediction
Existing neuromorphic hardware, focusing mainly on shallow-reservoir computing, is challenged in providing adequate spatial and temporal scales characteristic for effective computing. Here, Gao et al. report an ultra-short channel organic neuromorphic vertical transistor with distributed reservoir states.
- Changsong Gao
- , Di Liu
- & Huipeng Chen
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| Open Access
Powering AI at the edge: A robust, memristor-based binarized neural network with near-memory computing and miniaturized solar cell
The authors present an AI engine with 32,768 memristors powered by a miniature solar cell. This circuit exploits near-memory computing, naturally adjusting its accuracy depending on the illumination level, and paves the way for self-powered AI.
- Fadi Jebali
- , Atreya Majumdar
- & Jean-Michel Portal
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Giant tunnelling electroresistance in atomic-scale ferroelectric tunnel junctions
The authors report ferroelectric tunnel junctions based on samarium-substituted layered bismuth oxide, which show tunnelling electroresistance of 7 × 105 and high endurance over 5 billion cycles, even when the film is down to one nanometer.
- Yueyang Jia
- , Qianqian Yang
- & Rui Yang
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Alkali metal bilayer intercalation in graphene
Here, the authors report a study of the structural properties of intercalated alkali metals in bilayer graphene and graphite via low-voltage scanning transmission electron microscopy, providing mechanistic insights for the development of energy storage applications.
- Yung-Chang Lin
- , Rika Matsumoto
- & Kazu Suenaga
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Atomic-scale manipulation of polar domain boundaries in monolayer ferroelectric In2Se3
Here, the authors realize controllable manipulation of polar domain boundaries in a two-dimensional ferroelectric material In2Se3. It reveals the origin of distinct behaviors for different domain boundaries in combination with density functional theory calculations.
- Fan Zhang
- , Zhe Wang
- & Chenggang Tao
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Magnetoresistive-coupled transistor using the Weyl semimetal NbP
L. Rocchino et al. experimentally demonstrate a magnetic field effect transistor based on the Weyl semimetal NbP as the active channel material. A gate magnetic field is generated by current flowing in an integrated superconductor NbN. The device operation relies on the extreme magnetoresistance of the NbP.
- Lorenzo Rocchino
- , Federico Balduini
- & Cezar B. Zota
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Robust multiferroic in interfacial modulation synthesized wafer-scale one-unit-cell of chromium sulfide
2D multiferroic materials have garnered broad interests due to their magnetoelectric properties and multifunctional applications. Here, the authors discover a multiferroic feature in interfacial modulation synthesized wafer-scale one-unit-cell Cr2S3.
- Luying Song
- , Ying Zhao
- & Jun He
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| Open Access
Ratiometric fluorescent sensing of pyrophosphate with sp³-functionalized single-walled carbon nanotubes
Inorganic pyrophosphate is a key molecule in many biological processes. Here, the authors develop an optical sensor that enables its ratiometric detection in the near infrared with functionalized single-walled carbon nanotubes.
- Simon Settele
- , C. Alexander Schrage
- & Jana Zaumseil
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Ultrafast hot-carrier dynamics in ultrathin monocrystalline gold
Progress has been made in the development of low-loss monocrystalline plasmonic metals, opening up opportunities for ultrathin nanophotonic architectures. Here, the authors reveal differences in hot-electron thermalisation dynamics between ultrathin monocrystalline and polycrystalline gold films.
- Can O. Karaman
- , Anton Yu. Bykov
- & Anatoly V. Zayats
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DNA mechanocapsules for programmable piconewton responsive drug delivery
The mechanical dysregulation of cells is associated with several diseases and strategies to deliver drugs based on the “mechanical phenotype” of a cell are desirable. Here, the authors design and characterize DNA mechanocapsules comprised of DNA tetrahedrons that are force responsive, and showed they can encapsulate macromolecular cargo and release it upon application of force.
- Arventh Velusamy
- , Radhika Sharma
- & Khalid Salaita
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Miniaturized spectrometer with intrinsic long-term image memory
Recent studies have reported miniaturized spectrometers based on van der Waals heterostructures. Here, the authors demonstrate multifunctional SnS2/ReSe2 heterojunction spectrometers providing photodetection, spectrum reconstruction, spectral imaging, long-term image memory, and signal processing capabilities.
- Gang Wu
- , Mohamed Abid
- & Han-Chun Wu
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| Open Access
Surface-confined alternating copolymerization with molecular precision by stoichiometric control
Conventional sequence-controlled copolymerization often suffers from strict requirements on reaction kinetics of comonomer pairs and tedious synthetic processes. Here, the authors demonstrate a sequence-controlled alternating copolymerization with molecular precision on a Ag(111) surface under thermodynamic control of the polymerization selectivity.
- Lingbo Xing
- , Jie Li
- & Kai Wu
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| Open Access
Microwave quantum diode
Quantum devices exhibiting non-reciprocal behaviour have been attracting attention for fundamental studies and applications. Here the authors report a microwave quantum diode based on a superconducting flux qubit coupled to two resonators, which has the advantage of compactness and scalability.
- Rishabh Upadhyay
- , Dmitry S. Golubev
- & Jukka P. Pekola
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Broadband miniaturized spectrometers with a van der Waals tunnel diode
Here, the authors report a high-performance broadband spectrometer based on a van der Waals heterostructure tunnel diode containing MoS2 and and black phosphorus, leveraging their electrically tunable photoresponse and advanced computational algorithms for spectral reconstruction.
- Md Gius Uddin
- , Susobhan Das
- & Zhipei Sun
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Differential perovskite hemispherical photodetector for intelligent imaging and location tracking
Differential spectrometers recognise different wavelength via their differential photodetector responsivity. The authors combine an 8-pixel hemispherical perovskite photodetector with neural network algorithms to realise 3D trajectory tracking and 2D location tacking with colour classification.
- Xiaopeng Feng
- , Chenglong Li
- & Haotong Wei
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Reconfiguring nucleation for CVD growth of twisted bilayer MoS2 with a wide range of twist angles
Twisted bilayers of 2D semiconductors are being intensively investigated due to their emergent physical properties, but their controlled bottom-up synthesis remains challenging. Here, the authors report a confined-space chemical vapour deposition strategy to synthesize MoS2 bilayers with twist angles ranging from 0° to 120°.
- Manzhang Xu
- , Hongjia Ji
- & Wei Huang
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Synthesis of inter-[60]fullerene conjugates with inherent chirality
Inter-fullerene conjugates are non-naturally occurring carbon allotropes. Here the authors report on the chemical synthesis and solid-state structure of three inter-[60]fullerene hybrids with inherent chirality.
- Yoshifumi Hashikawa
- , Shu Okamoto
- & Yasujiro Murata
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Flexible switch matrix addressable electrode arrays with organic electrochemical transistor and pn diode technology
Organic neural implants hold considerable promise for biocompatible neural interfaces. Here, the authors employ polymer-based organic electrochemical diodes and transistors to develop neuron-sized complex circuits, enabling multiplexing without crosstalk and demonstrate that, when integrated onto ultra-thin plastic, these circuits achieve high performance while maintaining minimal invasiveness.
- Ilke Uguz
- , David Ohayon
- & Kenneth L. Shepard
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Lithiated porous silicon nanowires stimulate periodontal regeneration
Prelithiation can introduce controllable amounts of lithium within porous silicon, however it yields a highly reactive material unsuitable for biomedicine. In this study, the authors present a strategy to lithiate porous silicon nanowires, resulting in a biocompatible and bioresorbable material.
- Martti Kaasalainen
- , Ran Zhang
- & Ciro Chiappini
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Ultrasmall single-layered NbSe2 nanotubes flattened within a chemical-driven self-pressurized carbon nanotube
The chemical-driven large pressure arising inside carbon nanotubes creates energetically stable, flattened, single-layered NbSe2 nanotubes with enhanced intermolecular electronic interactions, suggesting a chemical approach to produce materials with tailored structural and electronic properties.
- Yaxin Jiang
- , Hao Xiong
- & Fei Wei
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Unusual flexibility of transparent poly(methylsilsesquioxane) aerogels by surfactant-induced mesoscopic fiber-like assembly
Aerogels are mechanically friable despite their attractive properties such as visible-light transparency and low thermal conductivity. Here the authors show mechanically flexible, highly transparent aerogels based on fiber-like pore skeletons.
- Ryota Ueoka
- , Yosuke Hara
- & Kazuyoshi Kanamori
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| Open Access
Hydrogen evolution with hot electrons on a plasmonic-molecular catalyst hybrid system
Direct participation of plasmon-induced hot electrons in the photoelectrocatalytic synthesis of hydrogen. This report solves a long-lasting contentious issue surrounding plasmonic materials on catalytic applications.
- Ananta Dey
- , Amal Mendalz
- & Jacinto Sá
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Overcoming the permeability-selectivity challenge in water purification using two-dimensional cobalt-functionalized vermiculite membrane
Clean water and sanitation are major global challenges. Here, Prof. Zhang’s group developed a two-dimensional cobalt-functionalized vermiculite membrane, which overcame the persistent membrane permeability-selectivity trade-off in water purification.
- Mengtao Tian
- , Yi Liu
- & Zhenghua Zhang
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Scalable nano-architecture for stable near-blackbody solar absorption at high temperatures
Nanostructures are generally unstable above 850 °C in air, limiting their use in high-temperature solar thermal applications. Here, a scalable ceramic nano-architecture layer can significantly enhance and stabilise the absorption of an arbitrary solar absorber.
- Yifan Guo
- , Kaoru Tsuda
- & Juan F. Torres
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| Open Access
Tunable quantum interferometer for correlated moiré electrons
Gate-defined superconducting moiré devices offer high tunability for probing the nature of superconducting and correlated insulating states. Here, the authors report the Little–Parks and Aharonov–Bohm effects in a single gate-defined magic-angle twisted bilayer graphene device.
- Shuichi Iwakiri
- , Alexandra Mestre-Torà
- & Klaus Ensslin
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| Open Access
Large electronegativity differences between adjacent atomic sites activate and stabilize ZnIn2S4 for efficient photocatalytic overall water splitting
Solving component homogeneity and sulfur instability of metal sulfides is crucial for photocatalytic overall water splitting. Here, the authors develop a distortion evoked cation site oxygen doping to create electronegativity differences between adjacent atom and enhance photocatalytic activity
- Xu Xin
- , Yuke Li
- & Xuanhua Li
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| Open Access
Biomimetic Bouligand chiral fibers array enables strong and superelastic ceramic aerogels
Ceramic aerogels are limited by poor mechanical stability under thermal shock. Here, the authors report a compositional and structural engineering strategy to develop strong and superelastic ceramic aerogel with chiral fibers array resembling biomimetic Bouligand structures.
- Wang Hongxing
- , Longdi Cheng
- & Bin Ding
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| Open Access
Multiresistance states in ferro- and antiferroelectric trilayer boron nitride
Here, the authors use three-layer boron nitride to construct interfacial ferro- and antiferroelectric tunnel junctions and find that the polarization is flipped in a layer-by-layer way, resulting in multiresistance states.
- Ming Lv
- , Jiulong Wang
- & Jiamin Xue
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| Open Access
Compact and wideband nanoacoustic pass-band filters for future 5G and 6G cellular radios
This work addresses the fundamental challenge of the frequency up-scaling of microacoustic devices. The manuscript presents the first bank of on-chip multi-frequency, low-loss, wideband, and compact passband filters for mobile 5G and 6G applications.
- Gabriel Giribaldi
- , Luca Colombo
- & Matteo Rinaldi
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| Open Access
Operando formation of highly efficient electrocatalysts induced by heteroatom leaching
Stability of catalyst dopant species under working conditions is often unexplored. Here, the authors reveal that the dopant sites tend to collapse when the applied potential is too negative or too positive and describe a protocol for the in-situ formation of highly efficient active sites via the leaching of dopants.
- Cong Liu
- , Bingbao Mei
- & Weilin Xu
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| Open Access
Angiogenesis-on-a-chip coupled with single-cell RNA sequencing reveals spatially differential activations of autophagy along angiogenic sprouts
The functional heterogeneity of autophagy in endothelial cells during angiogenesis remains incompletely understood. Here, the authors apply a 3D angiogenesis-on-a-chip coupled with single-cell RNA sequencing to find distinct autophagy functions in two different endothelial cell populations during angiogenic sprouting.
- Somin Lee
- , Hyunkyung Kim
- & Noo Li Jeon
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| Open Access
Injectable hydrogel electrodes as conduction highways to restore native pacing
No preventive treatment addresses the underlying condition that leads to cardiac arrest. Here, researchers developed an injectable hydrogel electrode that achieves pacing that mimics physiological conduction with the potential to eliminate lethal arrhythmias and provide painless defibrillation.
- Gabriel J. Rodriguez-Rivera
- , Allison Post
- & Elizabeth Cosgriff-Hernandez
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| Open Access
Ultrashort vertical-channel MoS2 transistor using a self-aligned contact
The simultaneous scaling down of the channel length and gate length of 2D transistors remains challenging. Here, the authors report a self-alignment process to fabricate vertical MoS2 transistors with sub-1 nm gate length and sub−50 nm channel length, exhibiting on-off ratios over 105 and on-state currents of 250 μA/μm at 4 V bias.
- Liting Liu
- , Yang Chen
- & Yuan Liu
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| Open Access
Parity-conserving Cooper-pair transport and ideal superconducting diode in planar germanium
M. Valentini et al. study superconducting quantum interference devices (SQUIDs) where the weak link of the Josephson junctions is a germanium 2D hole gas. They report signatures of the tunneling of pairs of Cooper pairs. For a particular microwave drive power, they observe a 100% efficient superconducting diode effect.
- Marco Valentini
- , Oliver Sagi
- & Georgios Katsaros
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| Open Access
A stabilization rule for metal carbido cluster bearing μ3-carbido single-atom-ligand encapsulated in carbon cage
Trimetallic carbido clusterfullerenes (CCFs) represent the simplest metal carbido complexes with the ligands being only carbon atoms, but the formation prerequisite is unclear. Herein, the authors report the syntheses of three novel vanadium(V)-based CCFs featuring high vanadium valence state and propose a supplemental Octet Rule
- Runnan Guan
- , Jing Huang
- & Su-Yuan Xie
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| Open Access
High throughput intracellular delivery by viscoelastic mechanoporation
Scalability of mechanoporation strategies for intracellular delivery remains challenging. Here, the authors demonstrate a microfluidic approach for delivering mRNA and CRISPR-Cas systems to over 250 million cells per minute.
- Derin Sevenler
- & Mehmet Toner
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| Open Access
A light-activatable theranostic combination for ratiometric hypoxia imaging and oxygen-deprived drug activity enhancement
Monitoring the level of hypoxia in a tumour is of use when treating by chemotherapy or photodynamic therapy, but can be challenging. Here, the authors report the development of a theranostic combination for light activated hypoxia imaging and modulation, and prodrug activation.
- Lei Ge
- , Yikai Tang
- & Xiqun Jiang
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| Open Access
Elastocapillarity-driven 2D nano-switches enable zeptoliter-scale liquid encapsulation
In this work, authors demonstrate programmable nanostructures using two-dimensional materials for nanoscale liquid manipulation. The nanoswitches and capsules can hold zeptoliter liquid volumes, enabling active nanofluidics circuits and confined reactors.
- Nathan Ronceray
- , Massimo Spina
- & Slaven Garaj
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| Open Access
Biomimetic chiral hydrogen-bonded organic-inorganic frameworks
Assembly is an interesting strategy to build chiral hierarchies with premade properties and functionalities. Here, the authors present assembled chiral hydrogen-bonded organic-inorganic frameworks with dynamical chiroptical activities and employ them as powerful and recoverable platforms for enantioselective recognition of chiral aliphatic substrates.
- Jun Guo
- , Yulong Duan
- & Yi Liu
Enhancing antibody responses by multivalent antigen display on thymus-independent DNA origami scaffolds