Article
Engineering, Electrical & Electronic
Jiaxue Zhu, Xumeng Zhang, Ming Wang, Rui Wang, Pei Chen, Lingli Cheng, Qi Liu
Summary: This letter reports an artificial spiking nociceptor integrating a pressure sensor and a NbOx-based memristor, which can emulate key features of biological nociceptors and is suitable for constructing efficient sensory systems and neural interfaces.
IEEE ELECTRON DEVICE LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Fanfan Li, Rui Wang, Chunyan Song, Momo Zhao, Huihui Ren, Saisai Wang, Kun Liang, Dingwei Li, Xiaohua Ma, Bowen Zhu, Hong Wang, Yue Hao
Summary: The study demonstrates an artificial mechanoreceptor by integrating a resistive pressure sensor and a volatile memristor, mimicking tactile sensation in natural skin and converting external mechanical stimuli into electrical spikes. Enhancement of tactile sensation is achieved by processing pulse frequency characteristics, and the artificial mechanoreceptor provides a simple and efficient strategy for constructing future bio-inspired electronic systems.
Article
Nanoscience & Nanotechnology
Shaoshuai He, Bingyan Guo, Xia Sun, Mingyue Shi, Hong Zhang, Fanglian Yao, Hong Sun, Junjie Li
Summary: Inspired by barnacle proteins, MXene/PHMP hydrogels with strong and repeatable underwater adhesion have been developed in this study. The hydrogels exhibit excellent mechanical properties, high conductivity, and functions as strain and pressure sensors. The potential of hydrogel-based sensors in underwater applications has been demonstrated.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Robotics
Fengyuan Liu, Sweety Deswal, Adamos Christou, Yulia Sandamirskaya, Mohsen Kaboli, Ravinder Dahiya
Summary: Touch is a complex sensing modality that enables us to feel and perceive the world through the large number of receptors in our skin. The touch-sensing capability of current robots is far behind humans, therefore there is a need for neural-like hardware for electronic skin (e-skin). This paper discusses the hardware implementations of various computational building blocks for e-skin and how they can potentially achieve human skin-like or peripheral nervous system-like functionalities.
Review
Engineering, Biomedical
Baoqing Nie, Sidi Liu, Qing Qu, Yiqiu Zhang, Mengying Zhao, Jian Liu
Summary: Learning from nature provides endless inspiration for scientists to invent new materials and devices. This article reviews the state-of-the-art technologies of bio-inspired smart electronic skin (E-skin) and discusses the recent advancements in the development of E-skin and implantable devices.
ACTA BIOMATERIALIA
(2022)
Review
Engineering, Manufacturing
Ashish Kalkal, Sumit Kumar, Pramod Kumar, Rangadhar Pradhan, Magnus Willander, Gopinath Packirisamy, Saurabh Kumar, Bansi Dhar Malhotra
Summary: Three-dimensional (3D) printing technologies are driving the development of wearable (bio)sensors with exciting characteristics such as high stretchability, super flexibility, low cost, ultra-thinness, and lightweight. This advanced manufacturing technology has revolutionized the concept of free form construction and end-user customization, leading to the fabrication of smaller, faster, and more efficient wearable devices. The contribution of 3D printing in developing novel structures for wearable applications using printable soft and functional materials is highlighted, along with the summary of major printing techniques and various (bio)sensing platforms discussed in terms of design specifications and fabrication strategies.
ADDITIVE MANUFACTURING
(2021)
Article
Chemistry, Physical
Ji-Ho Ryu, Boram Kim, Fayyaz Hussain, Chandreswar Mahata, Muhammad Ismail, Yoon Kim, Sungjun Kim
Summary: In this study, ITO/ZTO/ITO transparent resistive memory with high optical transparency was fabricated using an industrial sputtering process. The electrical properties were found suitable for neuromorphic systems, with transient pulse responses and synaptic characteristics observed. Conductivity changes were confirmed through various analyses, and pattern recognition was demonstrated using conductance values for neuromorphic engineering.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Zhongwei Xu, Chaoxing Wu, Yangbin Zhu, Songman Ju, Fumin Ma, Tailiang Guo, Fushan Li, Tae Whan Kim
Summary: The development of artificial skin, such as electronic skin, is vital for emerging artificial intelligence systems. Current electronic skins lack the ability to regulate themselves and learn from the outside world, despite being mechanically flexible and able to detect various stimuli. Integrating bio-inspired multifunction into a single electronic platform is crucial for the advancement of e-skin systems.
Review
Chemistry, Analytical
Mohamad-Ammar Sayegh, Hammam Daraghma, Samir Mekid, Salem Bashmal
Summary: This paper introduces a class of tactile sensors known as Whisker sensors and discusses their designs, materials, and manufacturing techniques. The article provides detailed information about the technical specifications and performance of these sensors, as well as their potential in various applications. Additionally, it explores the micro and nanoscale fabrication of Whiskers and their contributions to mechanical and thermal behavior. Lastly, the paper highlights research gaps in the field and potential applications of these sensors.
Review
Nanoscience & Nanotechnology
Jiean Li, Ming Xin, Zhong Ma, Yi Shi, Lijia Pan
Summary: This review discusses the recent progress in wearable electronics utilizing nanomaterials and bioinspired designs, with a focus on innovative approaches in interfacial packaging, sensory structure, and signal processing. It also proposes potential development trends for implementing bioinspired electronic devices in multifunctional portable sensors, health monitoring, and intelligent prosthetics.
Article
Chemistry, Analytical
Tareq Assaf
Summary: This study introduces a new prototype for transferring multiple sensor signals on a single wire, aiming to contribute to the development of robotic platforms. Through experimental validation, it has been demonstrated that this new prototype is efficient and reliable in transferring different signals.
Article
Chemistry, Multidisciplinary
Bing Ji, Qian Zhou, Bin Hu, Junwen Zhong, Jun Zhou, Bingpu Zhou
Summary: By developing a novel hybrid dielectric inspired by human skin, high pressure-resolution and sensitivity up to 1000 kPa(-1) can be simultaneously achieved in flexible tactile sensors, ensuring linear behavior across a broad range.
ADVANCED MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Chaeun Kim, Yunseok Lee, Sunghun Kim, Myounggon Kang, Sungjun Kim
Summary: In this article, the bio-inspired synaptic features of the TiN/ZrOx/Pt capacitor structure for neuromorphic engineering are demonstrated. The verification of the chemical and material compositions and layer thicknesses of each layer is done using TEM images and EDS maps. Stable resistive switching with a low set voltage is achieved, along with characteristics of multi-level cells based on compliance current and reset stop voltage. Artificial synapse behaviors such as paired-pulse facilitation, paired-pulse depression, electric excitatory postsynaptic current, and spike-timing-dependent plasticity are emulated using the RRAM device.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Uihoon Jung, Miseong Kim, Jaewon Jang, Jin-Hyuk Bae, In Man Kang, Sin-Hyung Lee
Summary: In this study, flexible neuromorphic systems for complex computations are implemented using organic memristors with bio-mimetic synaptic weights. The cluster-structured filaments achieved by optimizing the polymer conductivity lead to continuous memory states. The systems showed stable computing performances including ternary logic operators and noisy image recognition systems.
Article
Automation & Control Systems
Chao Yang, Xiaoping Wang, Zhanfei Chen, Zilu Wang, Sen Zhang, Zhigang Zeng
Summary: This work proposes a bio-inspired decision-making memristive circuit drawing on Hull's secondary learning system. The circuit can mimic decision-making processes initiated by secondary drive stimuli and shaped by secondary reinforcers through classical conditioning and operant conditioning. It also considers factors influencing decision-making, such as demand states, incentive motivation, and habit strength. The proposed circuit includes modules for classical conditioning, drive regulation, habit memory, incentive generation, and winner-takes-all, designed using a modular hierarchical circuit design method. The circuit utilizes memristors to perform brain-like online learning in an in-memory computing manner, providing power and area advantages. PSPICE-based simulations demonstrate the circuit's strong adaptive decision-making ability, making it applicable to bionic intelligent robots for complex tasks like detection and rescue.
IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Qing Xia, Yuxiang Qin, Peilun Qiu
Summary: This paper demonstrates a BiFeO3-based memristor with Ti-doped indium tin oxide as the top electrode material, exhibiting high performance and low power consumption. Through in-depth research on the electrode effect and current conduction mechanism, it is clarified that Ti-doped ions can improve the performance stability and uniformity of the memristor. This study provides a promising route for achieving low-power, highly uniform information storage and neuromorphic computing technology.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Yanxu Chen, Yuxiang Qin, Xueshuo Zhang, Anbo Zheng, Qing Xia
Summary: This paper reports a sensitive flexible iontronic pressure sensor with highly linear response. By using a hierarchical arete architecture design, the sensor inherits high sensitivity and achieves ultrahigh linearity. The experimental results demonstrate the high sensitivity of the sensor in a broad range and successful applications in the field of human health.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Materials Science, Multidisciplinary
Yuxiang Qin, Yinan Bai, Jing Xie, Haiyang Gui
Summary: The introduction of the orthorhombic SnS phase into a two-dimensional hexagonal SnS2 crystal to form in-plane heterojunctions has shown promising potential in enhancing the sensitivity of SnS2 towards trace gases. This study explores the surface adsorption of SnS and SnS2 and reveals the different effects of their surface electron configurations on ethanol adsorption. The findings provide insights into the design of novel lateral heterostructures and establish a new perspective on the structure-property relationship of 2D tin chalcogenides in gas-sensitive characteristics.
Article
Materials Science, Biomaterials
Qing Xia, Yuxiang Qin, Anbo Zheng, Peilun Qiu
Summary: Biomimetic haptic neuron systems have gained attention in the AI industry for their applications in health monitoring, electronic skin, and human-machine interfaces. This work presents a flexible and low-power artificial tactile neuron based on a sensor and a memristor, which enable perception, memory, and tactile associative learning.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Astronomy & Astrophysics
Zara Abdurashidova, Tyrone Adams, James E. Aguirre, Paul Alexander, Zaki S. Ali, Rushelle Baartman, Yanga Balfour, Rennan Barkana, Adam P. Beardsley, Gianni Bernardi, Tashalee S. Billings, Judd D. Bowman, Richard F. Bradley, Daniela Breitman, Philip Bull, Jacob Burba, Steve Carey, Chris L. Carilli, Carina Cheng, Samir Choudhuri, David R. DeBoer, Eloy de Lera Acedo, Matt Dexter, Joshua S. Dillon, John Ely, Aaron Ewall-Wice, Nicolas Fagnoni, Anastasia Fialkov, Randall Fritz, Steven R. Furlanetto, Kingsley Gale-Sides, Hugh Garsden, Brian Glendenning, Adelie Gorce, Deepthi Gorthi, Bradley Greig, Jasper Grobbelaar, Ziyaad Halday, Bryna J. Hazelton, Stefan Heimersheim, Jacqueline N. Hewitt, Jack Hickish, Daniel C. Jacobs, Austin Julius, Nicholas S. Kern, Joshua Kerrigan, Piyanat Kittiwisit, Saul A. Kohn, Matthew Kolopanis, Adam Lanman, Paul La Plante, David Lewis, Adrian Liu, Anita Loots, Yin-Zhe Ma, David H. E. MacMahon, Lourence Malan, Keith Malgas, Cresshim Malgas, Matthys Maree, Bradley Marero, Zachary E. Martinot, Lisa McBride, Andrei Mesinger, Jordan Mirocha, Mathakane Molewa, Miguel F. Morales, Tshegofalang Mosiane, Julian B. Munoz, Steven G. Murray, Vighnesh Nagpal, Abraham R. Neben, Bojan Nikolic, Chuneeta D. Nunhokee, Hans Nuwegeld, Aaron R. Parsons, Robert Pascua, Nipanjana Patra, Samantha Pieterse, Yuxiang Qin, Nima Razavi-Ghods, James Robnett, Kathryn Rosie, Mario G. Santos, Peter Sims, Saurabh Singh, Craig Smith, Hilton Swarts, Jianrong Tan, Nithyanandan Thyagarajan, Michael J. Wilensky, Peter K. G. Williams, Pieter van Wyngaarden, Haoxuan Zheng
Summary: We present the most sensitive upper limits to date on the 21 cm epoch of reionization power spectrum using Phase I of the HERA. Our analysis techniques improve the previous limits by a factor of 2.1 and 2.6 at z = 7.9 and z = 10.4 respectively. These limits are consistent with thermal noise and validate our results using statistical tests and pipeline simulations. We also find constraints on the astrophysics of reionization and cosmic dawn, ruling out cold reionization scenarios and requiring heating driven by evolved low-metallicity stars.
ASTROPHYSICAL JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Yuxiang Qin, Bo Gao, Yanxu Chen, Qing Xia
Summary: In this study, a flexible pressure sensor with ultra-high sensitivity and superior capability of identifying transverse shear force and temperature signals is designed and constructed. The sensor is based on a porous fiber network of multi-walled carbon nanotubes (MWCNTs)-polydimethylsiloxane (PDMS) and exhibits a wide detection range and adjustable nanoscale contacts. It also maintains a relatively stable performance even after more than 10,000 pressure cycles.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Anbo Zheng, Yuxiang Qin, Qing Xia, Xueshuo Zhang, Yanxu Chen
Summary: To meet the demand for sustainable development and ecofriendliness, hydrogels based on biopolymers have gained attention for developing flexible pressure sensors. Natural globular proteins have potential for developing biobased pressure sensors due to their advantages. However, creating protein hydrogel-based sensors with toughness for pressure sensing remains a challenge.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Yuxiang Qin, Yanxu Chen, Xueshuo Zhang, Anbo Zheng, Qing Xia
Summary: In recent years, hydrogels have become a popular choice for flexible sensors due to their high stretchability and biocompatibility. However, the limitations of hydrogels, such as drying out and poor reusability, hinder their applications. This study presents a double-network (DN) organohydrogel with improved mechanical properties, conductivity, and antidrying characteristics. The DN organohydrogel shows excellent performances as a pressure sensor and NH3 sensor, making it suitable for diverse scenarios.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Yuxiang Qin, Xiaoxuan Liu, Jing Xie
Summary: SnS/CQDs nanocomposite with a unique heterogeneous structure was prepared by modifying SnS with carbon quantum dots (CQDs) containing hydroxyl and carboxyl groups. The hydrothermally prepared SnS/CQDs sensor showed a much higher response to NH3 at ppb level and a 4.78-fold higher response to 10 ppm NH3 compared to pure SnS. Moreover, it exhibited a humidity-enhanced effect with a 1.44 times higher response to 2.5 ppm NH3 at 97% RH. The study provides a feasible approach to explore the application potential of SnS-based nanocomposites in high humidity environments.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Yuxiang Qin, Anbo Zheng, Qing Xia, Xueshuo Zhang, Yanxu Chen
Summary: This study focuses on developing a high-performance flexible pressure sensor based on a biobased protein hydrogel. The sensor exhibits excellent mechanical performance, flexibility, and adhesion properties, making it suitable for monitoring physiological signals. Moreover, it can be used for various practical applications and integrated into a contactless delivery system for low-risk commodity distribution during the COVID-19 pandemic.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Qin Yuxiang, Xie Jing, Bai Yinan
Summary: This study reports a new SnS/Ti3C2Tx nanocomposite for gas sensing applications, which consists of vertically aligned SnS nanoflakes and modulated conductivity. By functionalizing the surface of SnS with alkaline treatment, the sensitivity towards trace NH3 was further improved. This research opens up new possibilities for microstructure construction and ultra-low concentration gas detection of black phosphorus-like materials.
ENVIRONMENTAL SCIENCE-NANO
(2022)
Article
Engineering, Electrical & Electronic
Yuxiang Qin, Shuhan Chen, Yinan Bai
Summary: Group-IV monochalcogenides MX show great potential in gas-sensing applications, especially with their two-dimensional heterostructures. In this work, a SnS/SnS2 in-plane heterostructure was prepared, which exhibited plentiful grain boundaries and lattice defects for strong adsorption of methanol molecules and significant modulation on electron transport. The sensor based on this heterostructure showed a 7.1 times enhancement in sensing response and the capability to detect low concentrations of methanol vapor.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Materials Science, Biomaterials
Izabela Stupka, Artur P. Biela, Bernard Piette, Agnieszka Kowalczyk, Karolina Majsterkiewicz, Kinga Borzecka-Solarz, Antonina Naskalska, Jonathan G. Heddle
Summary: Artificial protein cages, such as TRAP-cages, have potential applications in vaccines and drug delivery. TRAP-cages have the ability to control the disassembly conditions by modifying the interface between their building blocks. By using TRAP rings with different numbers of monomers, it is possible to predict the formation of other cages.
JOURNAL OF MATERIALS CHEMISTRY B
(2024)
Article
Materials Science, Biomaterials
Guo Zhang, Yu Wang, Hua Qiu, Lei Lu
Summary: This study presents a one-pot synthesis method for flower-like AMPs@EAMP particles by combining antimicrobial peptides with ellagic acid, offering enlarged surface area, excellent biocompatibility, and broad-spectrum antibacterial activity. In vivo studies indicate their potential for tissue repair and immune barrier reconstruction.
JOURNAL OF MATERIALS CHEMISTRY B
(2024)
Article
Materials Science, Biomaterials
Jiamei Zhang, Lingshuang Wang, Cheng Xu, Yingui Cao, Shengsheng Liu, Rui L. Reis, Subhas C. Kundu, Xiao Yang, Bo Xiao, Lian Duan
Summary: Pluronic F127 modified silk fibroin film with different types of antibacterial agents could accelerate wound recovery by promoting fibroblast adhesion, eradicating bacteria, and facilitating angiogenesis and re-epithelialization.
JOURNAL OF MATERIALS CHEMISTRY B
(2024)
Article
Materials Science, Biomaterials
Yinsheng Liu, Mingyue Wang, Yinfei Hui, Lei Sun, Yanrui Hao, Henlong Ren, Hao Guo, Wu Yang
Summary: In this study, a rare-earth hybrid luminescent material was developed for the detection of a biomarker for anthrax. The material showed excellent selectivity and high sensitivity, allowing for the determination of the biomarker in saliva and urine. Additionally, a convenient point-of-care testing method using fluorescent test paper and a smartphone was established for the initial diagnosis of anthrax.
JOURNAL OF MATERIALS CHEMISTRY B
(2024)
Review
Materials Science, Biomaterials
Wenshuai Yang, Jingsi Chen, Ziqian Zhao, Meng Wu, Lu Gong, Yimei Sun, Charley Huang, Bin Yan, Hongbo Zeng
Summary: Injectable hydrogels with shear-thinning and/or in situ formation properties offer distinct advantages in bioengineering applications, as they can be directly delivered to target sites, possess self-healing abilities, and simplify the implantation process.
JOURNAL OF MATERIALS CHEMISTRY B
(2024)
