Themed collection Nanoscale and Nanoscale Horizons: Nanodevices
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Flexible two-dimensional MXene-based antennas
This minireview summarizes the recent cutting-edge works of 2D MXene-based flexible antennas, discusses the existing bottlenecks, and provides some guidelines for the future development of this promising field.
Nanoscale Horiz., 2023,8, 309-319
https://doi.org/10.1039/D2NH00556E
Progress in the design of portable colorimetric chemical sensing devices
Developement of portable colorimetric devices for detection of heavy metals, anions, biomolecules, pesticides, drugs, and other substances is vital across clinical, environmental, and food safety domains.
Nanoscale, 2023,15, 19016-19038
https://doi.org/10.1039/D3NR03803C
Memristor-based neural networks: a bridge from device to artificial intelligence
This paper reviews the research progress in memristor-based neural networks and puts forward future development trends.
Nanoscale Horiz., 2023,8, 716-745
https://doi.org/10.1039/D2NH00536K
In vivo applications of micro/nanorobots
This review discusses the current status of micro/nanorobotic applications by focusing on preclinical studies conducted with animal models.
Nanoscale, 2023,15, 8491-8507
https://doi.org/10.1039/D3NR00502J
Mercury chalcogenide colloidal quantum dots for infrared photodetection: from synthesis to device applications
A comprehensive review on Hg chalcogenide colloidal quantum dot infrared photodetectors, with the essential progress of synthesis methods, property control, device engineering, focus plane array integration and innovative applications.
Nanoscale, 2023,15, 6476-6504
https://doi.org/10.1039/D2NR07309A
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
Chronic full-band recordings with graphene microtransistors as neural interfaces for discrimination of brain states
Graphene-based transistors (gSGFETs) enabled stable full-band brain recordings for 5+ months, allowing precise brain state identification and prediction, which is critical both in brain science and neurology.
Nanoscale Horiz., 2024,9, 589-597
https://doi.org/10.1039/D3NH00440F
Insights into synaptic functionality and resistive switching in lead iodide flexible memristor devices
Neuromorphic platforms are gaining popularity due to their superior efficiency, low power consumption, and adaptable parallel signal processing capabilities, overcoming the limitations of traditional von Neumann architecture.
Nanoscale Horiz., 2024,9, 438-448
https://doi.org/10.1039/D3NH00505D
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
Electrochemical rewiring through quantum conductance effects in single metallic memristive nanowires
In this work, Milano et al. reported on quantum conductance effects in memristive nanowires, unveiling the origin of deviations of conductance levels from integer multiples of the conductance quantum and analyzing conductance fluctuations over time of memristive devices.
Nanoscale Horiz., 2024,9, 416-426
https://doi.org/10.1039/D3NH00476G
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
Phenethylammonium bromide interlayer for high-performance red quantum-dot light emitting diodes
Phenethylammonium bromide as an interlayer showed great potential to reduce trap states, balance charge carrier injection, and thus maximize the electroluminescent efficiency of quantum-dot LED.
Nanoscale Horiz., 2024,9, 465-471
https://doi.org/10.1039/D3NH00495C
Microelectromechanical system for in situ quantitative testing of tension–compression asymmetry in nanostructures
A novel on-chip microelectromechanical system (MEMS) is used for in situ quantitative testing of asymmetric mechanical properties of nanostructures, with potential applications in nanotechnology research.
Nanoscale Horiz., 2024,9, 254-263
https://doi.org/10.1039/D3NH00407D
Linear conductance update improvement of CMOS-compatible second-order memristors for fast and energy-efficient training of a neural network using a memristor crossbar array
The linear conductance update of a CMOS-compatible HfO2 memristor is improved by introducing a second-order memristor effect and connecting a voltage divider to the device, which makes the memristor crossbar array more energy- and time-efficient.
Nanoscale Horiz., 2023,8, 1366-1376
https://doi.org/10.1039/D3NH00121K
Protein redox by a piezoelectric acousto-nanodevice
We present a novel acousto-nanodevice as redox agents triggered by ultrasound. With a piezoelectric nanoparticle with a half-gold surface, it induces protein oxidation via unidirectional electron transfer due to alternating electric polarization.
Nanoscale, 2023,15, 12889-12893
https://doi.org/10.1039/D3NR01523H
Two dimensional NbSe2/Nb2O5 metal–semiconductor heterostructure-based photoelectrochemical photodetector with fast response and high flexibility
Two dimensional (2D) metal–semiconductor heterostructures are promising for high-performance optoelectronic devices due to fast carrier separation and transportation.
Nanoscale Horiz., 2023,8, 1113-1121
https://doi.org/10.1039/D3NH00172E
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A light-operated integrated DNA walker–origami system beyond bridge burning
Integrating rationally designed DNA molecular walkers and DNA origami platforms is a promising route towards advanced nano-robotics of diverse functions.
Nanoscale Horiz., 2023,8, 827-841
https://doi.org/10.1039/D2NH00565D
Transverse magnetoconductance in two-terminal chiral spin-selective devices
In the transverse CISS measurement geometry, the magnetization is normal to the current. Transverse spin polarization has been found, even in the absence of electromagnetochiral effects. The CISS signal also satisfies Onsager's reciprocity.
Nanoscale Horiz., 2023,8, 320-330
https://doi.org/10.1039/D2NH00502F
Microbatteries with twin-Swiss-rolls redefine performance limits in the sub-square millimeter range
Twin Swiss-roll microelectrodes are built up on a chip delivering a high energy density of 458 μW h cm−2, which redefines the performance limit in the sub-0.1 square millimeter range.
Nanoscale Horiz., 2023,8, 127-132
https://doi.org/10.1039/D2NH00472K
Effects of thermal annealing on analog resistive switching behavior in bilayer HfO2/ZnO synaptic devices: the role of ZnO grain boundaries
Schematic illustration of the transition mechanism during the conductive filamentary formation in bilayer HfO2/ZnO synaptic devices (a) without and (b) with thermal annealing.
Nanoscale, 2024,16, 4609-4619
https://doi.org/10.1039/D3NR04917E
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Direct observation of carbon slurry flow behavior and its effect on electrochemical performance in a microfluidic electrochemical flow capacitor
A transparent microfluidic electrochemical flow capacitor platform allows for probing the hydrodynamic effects on the electrochemical performance of flowable electrodes.
Nanoscale, 2024,16, 1807-1816
https://doi.org/10.1039/D3NR04391F
Magnetic-ferroelectric synergic control of multilevel conducting states in van der Waals multiferroic tunnel junctions towards in-memory computing
Multilevel nonvolatile storage and in-memory computing can be achieved simultaneously in one unit of the TiTe2/Mn2Se3/bilayer-In2S3/Mn2Se3/TiTe2 multiferroic tunnel junction.
Nanoscale, 2024,16, 1331-1344
https://doi.org/10.1039/D3NR04712A
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
Steerable acoustically powered starfish-inspired microrobot
We introduce a soft acousto-magnetic microrobot leveraging acoustic streaming for propulsion and mixing. The manipulation strategy exploits the distinct advantages of each applied field, precise magnetic orientation, and powerful acoustic propulsion.
Nanoscale, 2024,16, 1125-1134
https://doi.org/10.1039/D3NR03516F
A new triboelectric nanogenerator based on a multi-material stacking structure achieves efficient power conversion from discrete mechanical movement
A PFP-TENG based on a three-tribo-layer structure is proposed. It combines the advantages of elastic and inelastic triboelectric materials, which result in a high power density of 145.3 W m−3 and the ability to drive more than 1400 LEDs.
Nanoscale, 2024,16, 848-855
https://doi.org/10.1039/D3NR04060G
TMDC ternary alloy–based triboelectric nanogenerators with giant photo-induced enhancement
The photosensitive triboelectric nanogenerator exhibits an outstanding photoresponsivity (45.5 V mW−1) and enhanced energy harvesting ability under visible light illumination, and this wearable TENG is promising for smart device technology.
Nanoscale, 2023,15, 17398-17408
https://doi.org/10.1039/D3NR02791K
Moving dynamics of a nanorobot with three DNA legs on nanopore-based tracks
Powered by charge gradient along the nanopore distribution, the nanorobot with three DNA legs can autonomously walk on nanopore-based track.
Nanoscale, 2023,15, 15794-15809
https://doi.org/10.1039/D3NR03747A
Nanopore actuation of a DNA-tracked nanovehicle
We theoretically designed a DNA-tracked nanovehicle and investigated its working and turning movements by controlling the nanopore charge density.
Nanoscale, 2023,15, 14659-14668
https://doi.org/10.1039/D3NR02633G
Highly stretchable hydroxyapatite bionanocomposite for high-performance triboelectric nanogenerators
Here, we present a highly stretchable hydroxyapatite bionanocomposite for use in triboelectric nanogenerators with excellent performance output.
Nanoscale, 2023,15, 14205-14214
https://doi.org/10.1039/D3NR02849F
Experimental observation of the role of countercations in modulating the electrical conductance of Preyssler-type polyoxometalate nanodevices
We highlight the key role of counterions in modulating the conductance of the molecular junctions of polyoxometalate monolayers self-assembled on flat gold electrodes, connected by the tip of a conductive atomic force microscope.
Nanoscale, 2023,15, 10634-10641
https://doi.org/10.1039/D3NR02035E
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Exploring the intra-4f and the bright white light upconversion emissions of Gd2O3:Yb3+,Er3+-based materials for thermometry
Upconversion broadband white light emission driven by low-power near-infrared lasers has been reported for many materials, but the mechanisms and effects related to this phenomenon remain unclear.
Nanoscale, 2023,15, 9993-10003
https://doi.org/10.1039/D3NR01764H
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
Nanoscale temperature sensing of electronic devices with calibrated scanning thermal microscopy
Nanoscale thermal sensing of devices with calibrated scanning thermal microscopy. The calibration allows converting the electrical response of thermo-resistive probes into temperature and considers variable probe-sample thermal exchange processes.
Nanoscale, 2023,15, 7139-7146
https://doi.org/10.1039/D3NR00343D
A curtain purification system based on a rabbit fur-based rotating triboelectric nanogenerator for efficient photocatalytic degradation of volatile organic compounds
Efficient removal of air pollution caused by volatile organic compounds (VOCs) and particulate matter (PM) through distributed energy collected from the environment is an effective strategy to achieve both energy conservation and better air quality.
Nanoscale, 2023,15, 6709-6721
https://doi.org/10.1039/D3NR00507K
A flexible and stretchable triboelectric nanogenerator based on a medical conductive hydrogel for biomechanical energy harvesting and electronic switches
A flexible and stretchable single-electrode triboelectric nanogenerator based on a medical conductive hydrogel has been fabricated for biomechanical energy harvesting and electronic switches.
Nanoscale, 2023,15, 6812-6821
https://doi.org/10.1039/D2NR05706A
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On the switching mechanism and optimisation of ion irradiation enabled 2D MoS2 memristors
Kinetic Monte Carlo simulations reveals non-filamentary switching in 2D planar memristors, and provides optimization strategies for variability, resistance ratio, and scalability.
Nanoscale, 2023,15, 6408-6416
https://doi.org/10.1039/D2NR06810A
Point-of-care (POC) SARS-CoV-2 antigen detection using functionalized aerosol jet-printed organic electrochemical transistors (OECTs)
The continuous spread of coronavirus disease 2019 (COVID-19) has highlighted the need for simple and reliable diagnostic technologies for point-of-care (POC) virus detection applications.
Nanoscale, 2023,15, 5476-5485
https://doi.org/10.1039/D2NR06485E
Room-temperature spin-valve devices based on Fe3GaTe2/MoS2/Fe3GaTe2 2D van der Waals heterojunctions
A room-temperature spin-valve effect was observed in Fe3GaTe2/MoS2/Fe3GaTe2 2D van der Waals (vdW) heterojunction devices.
Nanoscale, 2023,15, 5371-5378
https://doi.org/10.1039/D2NR06886A
Combining negative photoconductivity and resistive switching towards in-memory logic operations
We demonstrate that a material exhibiting a negative photoconductivity and resistive switching can manifest in-memory OR logic gate operations. We have considered devices based on silver-bismuth-iodide rudorffites for this function.
Nanoscale, 2023,15, 5001-5010
https://doi.org/10.1039/D3NR00278K
Fractal structured charge-excitation triboelectric nanogenerators for powering portable electronic devices
A fractal switched-capacitor-converter combined with a TENG can greatly improve the output charge/current without reverse starting. The TENG can be integrated with a yoga mat for harvesting human-body motion energy to power portable electronics.
Nanoscale, 2023,15, 2820-2827
https://doi.org/10.1039/D2NR06328J
About this collection
This online collection from Nanoscale and Nanoscale Horizons showcases some of the recent nanodevice papers published in the journals.
We hope you enjoy reading these articles!