CHEMICAL ENGINEERING JOURNAL
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2024
·
IF 13.3
Jianhua Zeng,Libo Chen,Tianzhao Bu,Ziyue Wang,Likun Gong,Zhi-Bin Zhang,Junqing Zhao,Zhong Lin Wang,Chi Zhang
Stretchable synaptic devices with adaptability to elastic deformation, sensing environmental stimuli, and unique information processing functions are of great significance for the development of the next generation of artificial nervous systems. Here, an intrinsically stretchable tribotronic mechanoplastic artificial synapse (STMAS) is proposed, which is integrated by a triboelectric nanogenerator and an electrolyte-gated transistor with ion-gel as dielectric layer. The STMAS can be modulated by the triboelectric potential induced by mechanical stimulation without the need to apply an external gate voltage, achieving an active mechanical tuning of synaptic plasticity such as excitatory postsynaptic current, paired-pulse facilitation, short-term plasticity, and long-term plasticity. The STMAS exhibits stable synaptic plasticity under 0–50% stretcher strain in parallel and vertical to channel directions, respectively. Furthermore, the International Morse code triggered by mechanical signals has been successfully mimicked. This work has achieved an intrinsically stretchable tribotronic artificial synapse with mechanically tuned synaptic behavior, which will help promote the development of artificial nervous systems and expand the applications of artificial synapses in intelligent robotics, artificial limbs and human–machine interaction.
研究领域:
神经科学
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材料科学
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生物医学工程
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产品关联
DOI
高影响因子
Advanced Electronic Materials
·
2022
·Vol. 8
·期 7
·2101402
·
IF 7.633
Rongxue Ji,Guangdi Feng,Chunli Jiang,Bobo Tian,Chunhua Luo,Hechun Lin,Xiaodong Tang,Hui Peng,Chun-Gang Duan
Optoelectronic synapses integrating synaptic and sensing functions have great potential in visual information processing and neuromorphic computing. Here, an artificial optoelectronic synapse based on copper-phthalocyanine (CuPc) and poly(vinylidene fluoridetrifluoroethylene) (P(VDF-TrFE)) is reported. The fabricated two-terminal device exhibits bidirectional responses to light pulses with different wavelengths, which endows the device the capability to implement both excitatory and inhibitory synaptic behaviors in an optical pathway. The introduction of P(VDF-TrFE) greatly improves the performance of the device as an artificial synapse, because the ferroelectric polarization of P(VDF-TrFE) can control the relaxation behavior of the device. After mimicking some basic functions of biological synapses, the device is successfully applied to simulate the action and relaxation process of nociceptors when suffering from external harmful stimuli.
研究领域:
生物医学工程
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材料科学
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神经科学
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DOI
高影响因子
Advanced Quantum Technologies
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2025
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IF 4.3
Jiaming Wu,Wenle Tan,Xianfeng Qiao,Yuguang Ma,Dongge Ma
Organic high electron spin states, such as quintet state, can be used as multiple quantum bits for implementing quantum information. However, the practical quintet state via singlet fission is generally observed in strict conditions. Achieving long-term quantum coherence of quintets at room temperature is still challenging. Here, quantum coherence in electron quintet states up to 505 ns at room temperature is observed, enabling quantum operations up to 54 times. Detailed investigations show that two Rabi oscillations from the multiple levels of the quintet are detectable at room temperature, with frequencies of 1.69 ± 0.01 and 1.39 ± 0.01 times of that of triplet states, respectively. More importantly, this quintet derived from singlet fission process can be realized via a simple co-melting technology with amorphous form of 6,13-bis(triisopropylsilylethynyl)pentacene dopped 1,3,5-tri(1-naphthyl)benzene (TIPS-Pn:TNB). The organic TNB host with light elements is helpful for achieving long decoherence time. This study not only proves a simple method for preparing controllable quintet state at room temperature, but also emphasizes the opportunities of organic high electron spin states in quantum information science for working at low-cost and friendly condition.
研究领域:
量子物理
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凝聚态物理
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量子信息科学
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有机电子学
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自旋电子学
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产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Xuhong Wang,Yuan Gao,Heyan Meng,Xian Zhao,Baoqing Sun
The exponential growth of data from sensors and internet-connected devices has challenged traditional electronic computing, particularly in processing speed and power efficiency. Optical information processing, with its inherent high speed and parallelism, offers a promising solution. Moreover, optical processing is vital for developing all-optical networks, where all-optical imaging is essential. In this paper, a novel all-optical imaging technique that leverages in situ anion exchange reactions between perovskite nanocrystals to create an array of pixels with tunable emission wavelengths is proposed. This method enables the conversion of UV light, whether transmitted or reflected by an object, into the visible spectrum, thereby establishing a direct correlation between spectral and spatial information. By employing wavelength division multiplexing (WDM), the approach reduces the dimensionality of information acquisition from two dimensions to one, enhancing imaging speed. This innovation paves the way for significant advancements in all-optical imaging and image processing, offering new possibilities for faster and more efficient imaging technologies.
研究领域:
光学工程
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纳米技术
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成像科学
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材料科学
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光子学
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产品关联
DOI
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-9
·
IF 14.7
Cao Mengnan,Ren Yiran,Wu Yue,Shen Jingjie,Li Shujun,Yu Zhen-Qiang,Liu Shouxin,Li Jian,Rojas Orlando J.,Chen Zhijun
There is interest in developing sustainable materials displaying circularly polarized room-temperature phosphorescence, which have been scarcely reported. Here, we introduce biobased thin films exhibiting circularly polarized luminescence with simultaneous room-temperature phosphorescence. For this purpose, phosphorescence-active lignosulfonate biomolecules are co-assembled with cellulose nanocrystals in a chiral construct. The lignosulfonate is shown to capture the chirality generated by cellulose nanocrystals within the films, emitting circularly polarized phosphorescence with a 0.21 dissymmetry factor and 103 ms phosphorescence lifetime. By contrast with most organic phosphorescence materials, this chiral-phosphorescent system possesses phosphorescence stability, with no significant recession under extreme chemical environments. Meanwhile, the luminescent films resist water and humid environments but are fully biodegradable (16 days) in soil conditions. The introduced bio-based, environmentally-friendly circularly polarized phosphorescence system is expected to open many opportunities, as demonstrated here for information processing and anti-counterfeiting.
研究领域:
材料科学
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可持续材料
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光学
·
化学
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产品关联
DOI
PubMed
高影响因子
Matter
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2022
·
IF 19.967
Xiao Wei,Hao Li,Wenjing Yue,Song Gao,Zhenxiang Chen,Yang Li,Guozhen Shen
Summary Developing e-skins that can perceive stimuli with high sensitivity and material recognition functionality at low cost is of great importance to intelligent perception. Here, a hybrid e-skin (PTES) consisting of a triboelectric nanogenerator in tandem with a piezoresistive pressure sensor (PPS) is reported by using an eggshell membrane and infiltration method, which effectively perceives static and dynamic tactile information, such as human physiological information, manipulator tactile sensation, and human walking state. By integrating PTES with a high-speed data collector and machine learning, a material perception system capable of recognizing 12 materials in real time within one touch is established. A PTES array that can detect material property and location further demonstrates the feasibility of simultaneously processing multidimensional information. Additionally, by paralleling with a thin-film resistor, the PPS achieves an ultra-high sensitivity that can also be linearly adjusted. This PTES can open a new avenue for practical intelligent perception and realization of prominent applications.
研究领域:
机器人技术
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材料科学
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机器学习
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传感技术
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生物医学工程
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DOI
高影响因子
ADVANCED MATERIALS
·
2022
·Vol. 34
·期 37
·2203956
·
IF 32.086
Mengjia Cen,Jiawei Wang,Jianxun Liu,Huilin He,Ke Li,Wenfeng Cai,Tun Cao,Yan Jun Liu
Chiral metasurfaces can exhibit a strong circular dichroism, but it is limited by the complicated fabrication procedure and alignment errors. Here, a new type of self-aligned suspended chiral bilayer metasurface with only one-step electron beam lithography exposure is demonstrated. A significant optical chirality of 221° µm −1 can be realized using suspended metasurfaces with a thickness of 100 nm. Furthermore, this study experimentally demonstrates that such a structure is capable of label-free discrimination of the chiral molecules at zeptomole level, exhibiting a much higher sensitivity (orders of magnitude) compared to the conventional circular dichroism spectroscopy. The fundamental principles for chiral sensing using molecules–metasurfaces interactions are explored. Benefiting from the giant chiroptical response, the proposed metadevice may offer promising applications for ultrathin circular polarizers, chiral molecular detectors, and asymmetry information processing.
研究领域:
光学
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材料科学
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纳米技术
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分析化学
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DOI
PubMed
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-12
·
IF 15.7
Yang Yaqian,Ran Wenhao,Li Ying,Chen Yancheng,Chen Di,Shen Guozhen
Biological vision system-inspired optoelectronic synapses integrate sensing, memory, and processing for external information perception. However, most efforts focus on spatial expansion while overlooking critical dimensions like polarization and temporal evolution, which are critical for information extraction in complex environments. Inspired by the polarization-sensitive properties of kingfisher vision, we develop a polarization-sensitive optoelectronic synapse array device based on PEA 2 SnI 4 microwires array. Their anisotropic properties ensure polarization recognition, achieving a dichroic ratio of 1.38. And the asymmetric electrode designs create differentiated contact barriers, facilitating efficient charge storage and erasure under low power consumption. By employing four polarization-state-dependent convolutional kernels, the device demonstrates edge extraction capabilities even under 50% salt pepper noise. Furthermore, it enables high-precision in-sensor reservoir computing, with 100% accuracy in extracting fish trajectories under complex light environments. This work demonstrates motion perception in complex environments and provides a foundation for developing multi-dimensional, time-resolved visual systems for intelligent sensing and recognition.
研究领域:
神经形态工程
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光电子学
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人工智能
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传感器技术
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材料科学
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计算机视觉
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信息处理
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanoscale
·
2016
·Vol. 8
·期 34
·15681-15688
·
IF 7.76
Siqi Zhang,Kun Wang,Congcong Huang,Zhenyu Li,Ting Sun,De-Man Han
A series of multiple logic circuits based on magnetic beads and DNA are constructed to perform resettable nonarithmetic functions, including a digital comparator, 4-to-2 encoder and 2-to-3 decoder, 2-to-1 encoder and 1-to-2 decoder. The signal reporter is composed of a G-quadruplex/NMM complex and a AuNP-surface immobilized molecular beacon. It is the first time that the designed DNA-based nonarithmetic nanodevices can share the same DNA platform with a reset function, which has great potential application in information processing at the molecular level. Another novel feature of the designed system is that the developed nanodevices are operated on a simple DNA/magnetic bead platform and share a constant threshold setpoint without the assistance of any negative logic conversion. The reset function is realized by heating the output system and the magnetic separation of the computing modules. Due to the biocompatibility and design flexibility of DNA, these investigations may provide a new route towards the development of resettable advanced logic circuits in biological and biomedical fields.
研究领域:
分子生物学
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纳米技术
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生物医学工程
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信息处理
✓ 已验证
DOI
PubMed
高影响因子
Advanced Optical Materials
·
2021
·Vol. 10
·期 5
·2102512
·
IF 9.926
Ping Chen,Xin Feng,Dongyan Li,Lejing Pi,Zexin Li,Xiang Xu,Haoyun Wang,Xing Zhou,Tianyou Zhai
Light manipulation has promoted applications in all-optical processing. 2D anisotropic rare earth (RE) materials are promising for light modulation to realize information transmission and encryption due to the unique optical behaviors of RE ions. Here, image transmission and encryption have been realized by using 2D anisotropic RE material Eu 2 O 3 . The polarized photoluminescence (PL) of Eu 2 O 3 has been innovatively applied for information transmission by switching the on/off states. The opposite two modes of polarization-dependent PL have been applied to grayscale-resolved image transmission and encryption with high security. This novel approach, polarization manipulation on the PL of 2D anisotropic RE materials, will shed light on the development of information processing, all-optical switch, and all-optical computation.
研究领域:
光学
·
材料科学
·
信息处理
✓ 已验证
DOI
高影响因子
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