Article
Materials Science, Multidisciplinary
Qifeng Lu, Yizhang Xia, Fuqin Sun, Yixiang Shi, Yinchao Zhao, Shuqi Wang, Ting Zhang
Summary: The realization of a neuromorphic system with high power efficiency and flexibility is of great significance in constructing bionic interaction systems. However, current hardware-based systems face challenges in device performance and stability under deformation, making them incompatible with biological systems. To overcome these issues, an in situ growth method to synthesize dielectric materials on flexible substrates is proposed. The method improves the interface quality and device stability, while the resulting device exhibits continuous conductance states. Proof-of-concept experiments show that the proposed artificial synapse has great potential in neuromorphic system applications, achieving high recognition accuracy even with 30% conductance states.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Automation & Control Systems
Sungjun Oh, Hyungjin Kim, Seong Eun Kim, Min-Hwi Kim, Hea-Lim Park, Sin-Hyung Lee
Summary: Organic memristors show promise as flexible synaptic components for wearable intelligent systems. Efforts have been made to develop organic transient memristors for eco-friendly flexible neural networks. However, achieving flexible memristors with biorealistic synaptic plasticity for energy efficient learning processes in transient neural networks is still challenging.
ADVANCED INTELLIGENT SYSTEMS
(2023)
Article
Chemistry, Multidisciplinary
Lin Yang, Mriganka Singh, Shin-Wei Shen, Ke-Yun Chih, Shun-Wei Liu, Chih- Wu, Chih-Wei Chu, Hao-Wu Lin
Summary: This study demonstrates a highly transparent and flexible artificial synapse with a two-terminal architecture that emulates photonic synaptic functionalities, exhibiting characteristics such as paired-pulse facilitation, short/long-term memory, and synaptic behavior analogous to that of the human eye. The ability to detect deep red light without impacting synaptic behavior indicates dual-mode operation potential, contributing to higher integration density of transparent 3D stacking memristors and potential applications in optical learning, memory, computing, and visual recognition.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Jie Qiu, Jie Cao, Xusheng Liu, Pei Chen, Guan Feng, Xumeng Zhang, Ming Wang, Qi Liu
Summary: Researchers have developed a flexible organic electrochemical transistor-based synaptic device that can directly respond to biological neurotransmitters, exhibiting both short-term and long-term synaptic behaviors. The device shows reliable synaptic response and excellent mechanical flexibility under both flat and bending conditions, providing a promising approach for direct integration with soft biological tissues.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Zhiping Zhu, Yifei Pei, Chao Gao, Hongwei Wang, Xiaobing Yan
Summary: This study compares the electrical characteristics of Cu/Hf0.5Zr0.5O2 (HZO)/GeS/Pt and Cu/GeS/Pt devices, finding that inserting HZO layer in the double-layer memristor can achieve higher resistance ratio, reliability, and speed. The memristor devices can simulate biological synapses and plasticity, which is significant for the development of artificial synapses.
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
(2021)
Review
Chemistry, Multidisciplinary
Geonyeop Lee, Ji-Hwan Baek, Fan Ren, Stephen J. Pearton, Gwan-Hyoung Lee, Jihyun Kim
Summary: Neuromorphic systems, which mimic neural functionalities of a human brain using artificial synapses and neurons, have advantages of high energy efficiency and fast computing speed. 2D materials, with unique surface properties and excellent crystallinity, have emerged as promising candidates for neuromorphic computing hardware due to uncontrollable defects in bulk material-based devices.
Article
Materials Science, Multidisciplinary
Jinling Lan, Gang Cao, Jingjuan Wang, Xiaobing Yan
Summary: The study focused on a memristor with an Al/TiO2/Pt structure, showcasing its ability to simulate synaptic functions and verify pain behaviors of real nociceptors. This work highlights the potential application of TiO2-based devices in next-generation neuromorphological systems.
SCIENCE CHINA-MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Sailesh Rajasekaran, Firman Mangasa Simanjuntak, Sridhar Chandrasekaran, Debashis Panda, Aftab Saleem, Tseung-Yuen Tseng
Summary: The Ta2O5/WO3 double-layer wearable memristor synapse shows excellent recognition accuracy after a small number of training epochs. It has outstanding durability, withstanding extreme bending, high temperature, and water resistance.
IEEE ELECTRON DEVICE LETTERS
(2022)
Article
Chemistry, Physical
Qifeng Lu, Fuqin Sun, Yanbing Dai, Yingyi Wang, Lin Liu, Zihao Wang, Shuqi Wang, Ting Zhang
Summary: The development of a gas sensory system with perceptual learning inspired by the biological olfaction system is presented. The system, using H2S gas stimulation, consists of a gas sensor, a flexible oscillator, and an artificial synapse, with learning ability implemented through a KNN algorithm.
Article
Nanoscience & Nanotechnology
Jianhua Zeng, Junqing Zhao, Tianzhao Bu, Guoxu Liu, Youchao Qi, Han Zhou, Sicheng Dong, Chi Zhang
Summary: A flexible tribotronic artificial synapse (TAS) with bioinspired neurosensory behavior is developed, which demonstrates a series of synaptic behaviors by external stimuli and remains stable under strain conditions. Furthermore, Pavlovian conditioning has been successfully mimicked. This research has significant implications for the practical application of artificial limbs, robotics, and bionics in the future.
NANO-MICRO LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Jihoon Yang, Aram Yoon, Donghyun Lee, Seunguk Song, I. L. John Jung, Dong-Hyeok Lim, Hongsik Jeong, Zonghoon Lee, Mario Lanza, Soon-Yong Kwon
Summary: This work demonstrates the wafer-scale synthesis of highly polycrystalline 2H-MoTe2 films and their use in fabricating memristors with improved resistive switching uniformity and multilevel resistance states. The polycrystalline 2H-MoTe2 memristors also exhibit linear analog synaptic plasticity and can achieve high accuracy in image classification simulation-based learning.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Qian Ding, Wenyao Jiao, Haiting Wang, Xuzhao Zhang, Shujing Gao
Summary: Inspired by the excellent characteristics of TPU, skin-like flexible electronic devices were constructed. Different functions were realized through adjusting the electrode type and studying their electrical characteristics. The devices showed abrupt resistance change, synaptic plasticity behaviors, and fundamental synaptic functions even under tensile strain of 50%.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Chemistry, Multidisciplinary
Zehui Peng, Ziqiang Cheng, Shanwu Ke, Yongyue Xiao, Zhaoer Ye, Zikun Wang, Tongyu Shi, Cong Ye, Xin Wen, Paul K. Chu, Xue-Feng Yu, Jiahong Wang
Summary: A flexible memristor using 2D cadmium phosphorus trichalcogenide nanosheets as the functional layer was fabricated and showed excellent resistive switching performance under different radius and over 10(3) bending times. The device mechanism was systematically investigated, and synaptic plasticity including paired-pulse facilitation and spiking timing-dependent plasticity were observed. Additionally, the linear conductance modulation capacity of the flexible memristor was utilized for decimal operation, achieving successful addition, subtraction, multiplication, and division of decimal calculation. These results demonstrate the potential of metal phosphorus trichalcogenide in novel flexible neuromorphic devices, which accelerate the application process of neuromorphic computing.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Kaihui Chen, Zhen Fan, Jingjing Rao, Wenjie Li, Deming Wang, Changjian Li, Gaokuo Zhong, Ruiqiang Tao, Guo Tian, Minghui Qin, Min Zeng, Xubing Lu, Guofu Zhou, Xingsen Gao, Jun-Ming Liu
Summary: This study demonstrates the feasibility of constructing neuronal and synaptic devices based on SrFeOx material system, achieving nonvolatile and volatile resistive switching behavior by controlling the phase transition between different phases of SrFeOx. Fully memristive SNNs are constructed using SFO-based synapses and neurons and show good performance in unsupervised image recognition.
JOURNAL OF MATERIOMICS
(2022)
Article
Chemistry, Multidisciplinary
Chang-Hsun Huang, Chia-Yi Wu, Yen-Fu Lin, Yi-Chia Chou, Ko-Tao Lee
Summary: By utilizing wet etching, nanowire-based memristors using nitride materials have been developed and shown advantages of low power consumption and high integrated memristive capabilities, which have promising applications in bio-inspired artificial synapses.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Textiles
Liyun Ma, Ronghui Wu, Hao Miao, Xuwei Fan, Lingqing Kong, Aniruddha Patil, Xiang Yang Liu, Jun Wang
Summary: The article introduces a fibrous capacitive humidity sensor prepared using domestic winding fabrication facility and sputtering technique, exhibiting good repeatability and responsiveness performance.
TEXTILE RESEARCH JOURNAL
(2021)
Article
Chemistry, Physical
Shuihong Zhu, Yonghua Tang, Changxu Lin, Xiang Yang Liu, Youhui Lin
Summary: The latest advances in patterning natural polymers using nanofabrication techniques have been discussed, offering new opportunities for applications in tissue engineering, flexible electronics, and other fields in the future.
Article
Chemistry, Multidisciplinary
Yifan Zhang, Caifeng Chen, Ye Qiu, Liyun Ma, Wu Qiu, Rui Yu, Weidong Yu, Xiang Yang Liu
Summary: This study introduces a unique strategy of mesoscopic functionalization starting from silk fibroin materials to fabricate meso flexible SF electronic skin. By incorporating wool keratin and carbon nanotubes into the mesostructures of silk fibroin, the cocoon silk demonstrated robust mechanical and electric performance, showing a tunable sensitivity for passive wireless e-skin monitoring human subject pulses and evaluating blood vessel hardening and real-time blood pressure.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Chenyang Shi, Fan Hu, Ronghui Wu, Zijie Xu, Guangwei Shao, Rui Yu, Xiang Yang Liu
Summary: By mesoscopically reconstructing the hierarchical structures of silk fibroin materials, novel and enhanced properties can be achieved, leading to the fabrication of various flexible SF devices.
ADVANCED MATERIALS
(2021)
Editorial Material
Chemistry, Physical
Xiang-Yang Liu, Chaoyong Yang, Dawang Zhou
Article
Biochemistry & Molecular Biology
Mingfei Zhao, Kacper J. Lachowski, Shuai Zhang, Sarah Alamdari, Janani Sampath, Peng Mu, Christopher J. Mundy, Jim Pfaendtner, James J. De Yoreo, Chun-Long Chen, Lilo D. Pozzo, Andrew L. Ferguson
Summary: This study utilized molecular dynamics simulations and experimental observations to reveal the assembly mechanism of amphiphilic diblock peptoids in organic solvent/water mixtures, confirming the formation of 1D helical rods and 2D crystalline sheets during assembly. The findings establish new principles and understanding for the design of peptoid-based nanomaterials.
Article
Chemistry, Multidisciplinary
Madison Monahan, Micaela Homer, Shuai Zhang, Renyu Zheng, Chun-Long Chen, James De Yoreo, Brandi M. Cossairt
Summary: Self-assembled organic nanomaterials and inorganic nanoparticles can be combined to form hybrid structures. The assembly pathways and structural outcomes in these hybrid systems can be controlled by changing the solubility and size of the components. Quantum dots (QDs) and reversibly binding peptoids were used as the components in this study. In aqueous conditions, QDs stabilized certain morphologies of peptoid intermediates and generated multilayers of small peptoid sheets linked by QDs. In organic solvents, the assembly was facilitated or inhibited by the relative hydrophobicity of the QD surface ligands. Increasing the size of the QDs led to large hybrid sheets with highly ordered square-packed QDs. Additionally, binary hybrid lattices could be created by integrating smaller QD species. These findings provide design principles for controlling the structure and structural evolution of hybrid peptoid-QD assemblies.
Article
Chemistry, Multidisciplinary
R. Greg Felsted, Anupum Pant, Alexander B. Bard, Xiaojing Xia, Danika R. Luntz-Martin, Siamak Dadras, Shuai Zhang, A. Nick Vamivakas, Peter J. Pauzauskie
Summary: In this paper, a novel hydrothermal synthesis method was used to grow hexagonal NaYF crystals with the ability to achieve optical cavities. Optomechanical laser-refrigeration devices were constructed using these crystals, and significant laser refrigeration effects were observed.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Multidisciplinary Sciences
Shuai Zhang, Robbie Sadre, Benjamin A. Legg, Harley Pyles, Talita Perciano, E. Wes Bethel, David Baker, Oliver Rubel, James J. De Yoreo
Summary: This study directly observes and quantifies the rotational dynamics of protein nanorods on solid-water interfaces using high-speed atomic force microscopy and machine learning techniques. The findings reveal the characteristics of transitions between different angular states and provide insights into the self-assembly and other orientationally anisotropic outcomes of biomolecules at these interfaces.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Chemistry, Physical
Robert G. Alberstein, Jesse L. Prelesnik, Elias Nakouzi, Shuai Zhang, James J. De Yoreo, Jim Pfaendtner, F. Akif Tezcan, Christopher J. Mundy
Summary: Understanding templated molecular assembly on solid surfaces requires understanding the aqueous response to the surface under different solution conditions. In this study, we investigate the molecular-scale response to different mica surfaces and identify distinct solvent orientations that create directional potentials for macromolecule adsorption. We correlate this directionality with the epitaxial alignment of designed proteins on the surfaces and confirm our findings through atomic force microscopy experiments. Our work provides insights into the electrolyte response near mineral interfaces and highlights the role of solvent in predicting hierarchical material assembly on mineral surfaces.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Biochemistry & Molecular Biology
Mingfei Zhao, Shuai Zhang, Renyu Zheng, Sarah Alamdari, Christopher J. Mundy, Jim Pfaendtner, Lilo D. Pozzo, Chun-Long Chen, James J. De Yoreo, Andrew L. Ferguson
Summary: In this study, the mechanical properties of amphiphilic diblock peptoids were investigated using molecular dynamics simulations and atomic force microscopy. The computational predictions were found to be in good agreement with experimental measurements. Additionally, a theoretical model was developed to analyze the stability of nanotubes.
Article
Chemistry, Multidisciplinary
Susrut Akkineni, Gregory S. Doerk, Chenyang Shi, Biao Jin, Shuai Zhang, Stefan Habelitz, James J. De Yoreo
Summary: The study demonstrates how the supramolecular structures of matrix proteins can be synthetically directed into predetermined patterns while retaining their functionality. They used block copolymer lamellar patterns to direct the assembly of peptide nanoribbons, which template calcium phosphate nucleation by creating a low-energy interface. The results show that the patterned nanoribbons maintain their structure and function, and successfully direct the formation of calcium phosphate with high fidelity.
Article
Chemistry, Multidisciplinary
Shuai Zhang, Jeevapani J. J. Hettige, Yuhao Li, Tengyue Jian, Wenchao Yang, Yun-Chiao Yao, Renyu Zheng, Zhixing Lin, Jinhui Tao, James J. J. De Yoreo, Marcel Baer, Aleksandr Noy, Chun-Long Chen
Summary: Finding a stable and highly selective artificial membrane is crucial for solving global crises such as water scarcity. The co-assembly of carbon nanotube porins (CNTPs) and peptoids into 2D membrane nanosheets offers a promising solution with superior crystallinity and robustness.
Article
Chemistry, Multidisciplinary
Kacper J. Lachowski, Huat Thart Chiang, Kaylyn Torkelson, Wenhao Zhou, Shuai Zhang, Jim Pfaendtner, Lilo D. Pozzo
Summary: This study investigates the temporal control of growth processes in the synthesis of thin 2D metal nanoparticles and demonstrates the importance of lattice selectivity and binding free energy in controlling the growth pathway of nanoparticles. The substitution of isoleucine for methionine in a gold-binding peptide is shown to increase the anisotropy of gold nanoparticle growth. Dynamic intervention through the addition of a peptide allows for control over the size and stability of plate-like particles.
Review
Astronomy & Astrophysics
Ye MeiDan, Yu Rui, Lin YouHui, Liu XiangYang, Guo WenXi
Summary: Protein materials in nature have abundant chemical components, controllable properties, excellent biocompatibility and degradability, but their poor chemical stability and uncontrollable mechanical flexibility make it difficult to apply traditional processing technologies, limiting their use in the development of flexible electronic devices.
SCIENTIA SINICA-PHYSICA MECHANICA & ASTRONOMICA
(2021)
