Nanosensors articles within Nature Communications

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  • Article
    | Open Access

    The authors report a zinc oxide resonant nano-accelerometer with sensitivity up to 16.818 kHz/g, which is attributed to the nano-resonators using zinc oxide nanowires and the optimized microleverages and push-pull structures.

    • Pengfei Xu
    • , Dazhi Wang
    •  & Yan Cui

  • Article
    | Open Access

    Upon stress, plants activate a signaling cascade leading to resistance or stress adaptation. Here, Ang & Saju et al. use sensor multiplexing to elucidate the interplay between H2O2 and SA signaling as plants mount stress-specific defense responses.

    • Mervin Chun-Yi Ang
    • , Jolly Madathiparambil Saju
    •  & Rajani Sarojam

  • Article
    | Open Access

    Exceptional points emerge in systems with loss and gain when loss and gain in the system are balanced. Due to the careful balancing involved, they are highly sensitive to perturbations, making them exceptionally useful for sensors and other devices. Here, Wittrock et al observe a variety of complex dynamics associated with exceptional points in coupled spintronic nano-oscillators.

    • Steffen Wittrock
    • , Salvatore Perna
    •  & Vincent Cros

  • Article
    | Open Access

    Nanodiamonds containing NV centers are promising electron paramagnetic resonance sensors, however applications are hindered by their random orientation. Qin et al. propose a new protocol that makes the technique insensitive to the sensor’s orientation and present a proof-of-principle in situ demonstration.

    • Zhuoyang Qin
    • , Zhecheng Wang
    •  & Jiangfeng Du

  • Article
    | Open Access

    2D biochemical sensors hold potential for monitoring toxic contaminants in water, but they are usually affected by device-to-device variations. Here, the authors propose a scalable fabrication process and quality control procedure to realize graphene field-effect transistor arrays able to simultaneously detect trace amounts of heavy metal ions and bacteria in flowing water.

    • Arnab Maity
    • , Haihui Pu
    •  & Junhong Chen

  • Article
    | Open Access

    A new polarization structure of light is synthesized in a straightforward and robust way. The light field is probed using a levitated nanoparticle as a sensor. Optical angular momentum is used to control the particle in a novel way, with applications in sensing and quantum optomechanics.

    • Yanhui Hu
    • , Jack J. Kingsley-Smith
    •  & James Millen

  • Article
    | Open Access

    One of the possible events signaling a neutrinoless double beta decay is a Xe atom decaying into a Ba ion and two electrons. Aiming at the realisation of a detector for such a process, the authors show that Ba ions can be efficiently trapped (chelated) in vacuum by an organic molecule layer on a surface.

    • P. Herrero-Gómez
    • , J. P. Calupitan
    •  & J. T. White

  • Article
    | Open Access

    Understanding the behaviors of droplets at nanoscales is crucial to many applications, yet it remains experimentally challenging to track them in real time. Here, Sbarra et al. use a miniature optomechanical resonator to probe the evaporation dynamics of attoliter droplets with millisecond resolution.

    • Samantha Sbarra
    • , Louis Waquier
    •  & Ivan Favero

  • Article
    | Open Access

    3D depth sensing with structured light enables simultaneous imaging of multiple objects, but has limited field of view and low efficiency. Here, the authors demonstrate 3D imaging with scattered light from a metasurface composed of periodic supercells, covering a 180° field of view with a high-density dot array.

    • Gyeongtae Kim
    • , Yeseul Kim
    •  & Junsuk Rho

  • Article
    | Open Access

    .Sensitive detection of weak acoustic signals at nanometer scale is challenging. Here, the authors present an acoustic detection system based on a single molecule as a probe, where frequency and amplitude of acoustic vibrations can be extracted from its minute variations in distance to the surface of a plasmonic gold nanorod.

    • Mingcai Xie
    • , Hanyu Liu
    •  & Yuxi Tian

  • Article
    | Open Access

    Strain-induced piezoelectric polarization can be used to modulate the interface electrical transport. Here, the authors achieved a piezotronic tunneling strain sensor at device scale with optimized performance based on the structure of Ag/HfO2/n-ZnO.

    • Qiuhong Yu
    • , Rui Ge
    •  & Yong Qin

  • Article
    | Open Access

    Artificial sodium channels open up the way to new separation technologies but remains highly challenging. In this work, the authors report an artificial sodium-selective ionic device, built on porous crown-ether crystals with a sodium ion selectivity against calcium ions exceeding that one of biological ion channel counterparts.

    • Tingyan Ye
    • , Gaolei Hou
    •  & Jun Gao

  • Article
    | Open Access

    Efficient conversion of microwave photons into electrical current would enable several applications in quantum technologies, especially if one could step outside of the gated-time regime. Here, the authors demonstrate continuous-time microwave photoconversion in double quantum dots with 6% efficiency.

    • Waqar Khan
    • , Patrick P. Potts
    •  & Ville F. Maisi

  • Article
    | Open Access

    Optical readout techniques for nanomechanical force probes usually generate more heat than what can be dissipated through the nanoresonators. Here, the authors use an interferometric readout scheme, achieving large force sensitivity using suspended silicon carbide nanowires at dilution temperatures.

    • Francesco Fogliano
    • , Benjamin Besga
    •  & Olivier Arcizet

  • Article
    | Open Access

    The Gauge factor (GF) enhancement in strain sensors remains a key challenge. Here the authors leverage the piezoelectric and photoelectric effects in a class of van der Waals materials to tune the GF, and obtain a record GF up to 3933 for a SnS2-based strain sensor.

    • Wenjie Yan
    • , Huei-Ru Fuh
    •  & Han-Chun Wu

  • Article
    | Open Access

    Integrated photodetectors are essential for scalable photonic platforms, yet most efforts are concerted on the developing devices operating at infrared telecommunication wavelengths. Here, the authors report a monolithically integrated avalanche photodetector for visible light based on doped-Si rib waveguide with end-fire input coupling to a silicon nitride waveguide.

    • Salih Yanikgonul
    • , Victor Leong
    •  & Leonid Krivitsky

  • Article
    | Open Access

    The NV center in diamond has been used extensively in sensing; however single shot readout of its spin remains challenging, requiring complex optical setups. Here, Irber et al. demonstrate a more robust scheme that achieves single-shot readout even when using inefficient detection optics.

    • Dominik M. Irber
    • , Francesco Poggiali
    •  & Friedemann Reinhard

  • Article
    | Open Access

    Designing efficient nanowire chip-based electrical and optical devices remains a challenge. Here, the authors present an axial p-n junction GaAs nanowire X-ray detector that enables achieving a spatial resolution of 200 nm; probing the internal electrical field and observing hot electron effects at the nanoscale.

    • Maximilian Zapf
    • , Maurizio Ritzer
    •  & Carsten Ronning

  • Article
    | Open Access

    Designing bioinspired perceptual system remains a challenge. Here, the authors report a bimodal artificial sensory neuron, integrating a resistive pressure sensor, a perovskite-based photodetector, a hydrogel-based ionic cable, and a synaptic transistor, to implement the visual-haptic fusion for motion control and patterns recognition.

    • Changjin Wan
    • , Pingqiang Cai
    •  & Xiaodong Chen

  • Article
    | Open Access

    The use of one dimensional devices in nanomechanical mass spectrometry leads to a trade-off between analysis time and resolution. Here, the authors report single-particle mass spectrometry using integrated optomechanical resonators, impervious to particle position, stiffness or shape.

    • Marc Sansa
    • , Martial Defoort
    •  & Sébastien Hentz

  • Article
    | Open Access

    Integrated devices are useful for applications like sample stabilization, microscopy, adaptive optics, and acceleration sensors. Here the authors demonstrate a fully integrated chip-scale light-based displacement sensor using Huygens dipole scattering of light.

    • Ankan Bag
    • , Martin Neugebauer
    •  & Peter Banzer

  • Article
    | Open Access

    Programmable mechanochromic systems hold important roles in designing advanced bionic robots and colorimetric devices. Herein, the authors report the development of magnetic-plasmonic hybrid nanorods that can be integrated into thin polymer films with controlled orientations to display programmable mechanochromism.

    • Zhiwei Li
    • , Jianbo Jin
    •  & Yadong Yin

  • Article
    | Open Access

    Label-free trapping of nanoparticles via dielectophoretic forces is traditionally done with electrodes in a horizontal gap layout. Here, the authors present a vertical nanogap architecture, which allows for precise capture and spatiotemporal manipulation of nanoparticles and molecular assemblies.

    • Eui-Sang Yu
    • , Hyojin Lee
    •  & Yong-Sang Ryu

  • Article
    | Open Access

    Bolometers are highly sensitive instruments that can detect radiant energy. Here, authors report micro-bolometers based on suspended graphene nano-electromechanical membranes that can detect light at room-temperature with a NEP coefficient of 2 pW/Hz^1/2 and bandwidth up to 1.3 MHz.

    • Andrew Blaikie
    • , David Miller
    •  & Benjamín J. Alemán

  • Article
    | Open Access

    Identification of gas molecules is crucial in healthcare and security applications. Here the authors achieve label-free identification of SO2, NO2, N2O, and NO gas molecules by detecting their rotational-vibrational modes using graphene nanoribbon plasmons.

    • Hai Hu
    • , Xiaoxia Yang
    •  & Qing Dai

  • Article
    | Open Access

    Understanding the dynamics of nanomechanical probes is important for improving high-sensitivity force field sensing. Here, the authors study the vibrations of a suspended nanowire in the presence of a rotational optical force field which breaks the orthogonality of the nanoresonator eigenmodes.

    • Laure Mercier de Lépinay
    • , Benjamin Pigeau
    •  & Olivier Arcizet

  • Article
    | Open Access

    Plasmon rulers can be used for resolving ultrasmall material changes. Here, the authors show how cavity plasmons in a metal nanowire-on-mirror setup can be used to probe vertical dimensional changes with sub-picometer differential resolution using two carefully chosen material systems.

    • Wen Chen
    • , Shunping Zhang
    •  & Hongxing Xu

  • Article
    | Open Access

    Optomechanics has recently moved into the quantum regime. Here, Tavernarakis et al. demonstrate that a hybrid optomechanical device made up of a carbon nanotube with a metal nanoparticle at its tip can push force measurements towards the quantum regime at room temperature.

    • A. Tavernarakis
    • , A. Stavrinadis
    •  & P. Verlot

  • Article
    | Open Access

    The capability of positioning target molecules onto the edges of patterned graphene nanostructures is highly desirable. Here, the authors demonstrate that the atomically sharp edges of graphene can be used as dielectrophoretic tweezers for gradient-force-based trapping applications.

    • Avijit Barik
    • , Yao Zhang
    •  & Sang-Hyun Oh

  • Article
    | Open Access

    Plasmons in sub-nm cavities can enable chemical processes within plasmonic hotspots. Here the authors use surface-enhanced Raman spectroscopy to track hot-electron-induced chemical reduction processes in aromatic molecules, thus enabling observation of redox processes at the single-molecule level.

    • Bart de Nijs
    • , Felix Benz
    •  & Jeremy J. Baumberg

  • Article
    | Open Access

    State-of-the-art methods for sensing weak AC fields are only efficient in the low frequency domain. Here, Stark et al. demonstrate a sensing scheme that is capable of probing high frequencies through continuous dynamical coupling by applying it to a nitrogen-vacancy centre in diamond.

    • Alexander Stark
    • , Nati Aharon
    •  & Fedor Jelezko

  • Article
    | Open Access

    Dynamical decoupling protocols can enhance the sensitivity of quantum sensors but this is limited to signal frequencies below a few MHz. Here, Joas et al. use the Mollow triplet splitting in a nitrogen-vacancy centre to overcome this limitation, enabling sensitive detection of signals in the GHz range.

    • T. Joas
    • , A. M. Waeber
    •  & F. Reinhard

  • Article
    | Open Access

    The spatial organisation of nanostructures is fundamental to their function. Here, the authors develop a non-destructive, proximity-based method to record extensive spatial organization information in DNA molecules for later readout.

    • Thomas E. Schaus
    • , Sungwook Woo
    •  & Peng Yin

  • Article
    | Open Access

    Resonant driving of a nanoscale quantum system coupled to a microscopic mechanical resonator may have uses in precision sensing and quantum information. The authors realize this by tailoring the geometry of a semiconductor nanowire embedding a quantum dot, detecting sub-picometre displacements.

    • Mathieu Munsch
    • , Andreas V. Kuhlmann
    •  & Richard J. Warburton

  • Article
    | Open Access

    Nitrogen vacancy centres can be used for nanoscale nuclear magnetic resonance detection but this typically involves strong microwave control pulses, making practical realizations difficult. Here the authors demonstrate a microwave-free spectroscopic protocol that can detect spins in external samples.

    • James D. A. Wood
    • , Jean-Philippe Tetienne
    •  & Lloyd C. L. Hollenberg

  • Article
    | Open Access

    Single spin defects can allow high-resolution sensing of molecules under an applied magnetic field. Here, the authors propose a protocol for three-dimensional magnetic resonance imaging with angstrom-level resolution exploiting the dipolar field of a spin qubit, such as a diamond nitrogen-vacancy.

    • V. S. Perunicic
    • , C. D. Hill
    •  & L.C.L. Hollenberg

  • Article
    | Open Access

    High-refractive-index nanoantennas support magnetic and electric resonances that can be excited with structured light. Here, the authors exploit the interference of such resonances to achieve strong lateral directionality of the emission and utilize this effect for nanoscopic position sensing.

    • Martin Neugebauer
    • , Paweł Woźniak
    •  & Peter Banzer

  • Article
    | Open Access

    Sensors based on localized surface plasmon resonance suffer from low figures of merit. Here, the authors achieve high refractive index sensitivities and figures of merit by introducing a chiral shape and the idea of engineering the material dispersion function.

    • Hyeon-Ho Jeong
    • , Andrew G. Mark
    •  & Peer Fischer

  • Article
    | Open Access

    Nanomechanical resonators are sensitive to tiny changes in their mass. Here, the authors demonstrate a method for quickly measuring many resonator modes and use it to analyse the mass and position of multiple nanoparticles flowing in a fluid channel with a precision of 40 attograms and 150 nm, respectively.

    • Selim Olcum
    • , Nathan Cermak
    •  & Scott R. Manalis

  • Article
    | Open Access

    By incorporating magnetic materials into periodic nanostructures, additional control over the magneto-optical response of the system can be introduced. Kataja et al. show that arrays of magnetic nanoparticles exhibit Fano-type surface plasmon resonances with cross-coupling tuned by the lattice symmetry.

    • M. Kataja
    • , T. K. Hakala
    •  & P. Törmä

  • Article |

    Nanopore sensors provide a useful way of analysing single molecules, such as DNA. Here, the authors present a nanopore-based single-molecule reactor, into which DNA can be fed and removed, and which also acts as an entropic cage allowing for DNA chemical modifications.

    • Xu Liu
    • , Mirna Mihovilovic Skanata
    •  & Derek Stein

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