Article
Chemistry, Multidisciplinary
Agnes Bussmann, Henry Leistner, Doris Zhou, Martin Wackerle, Yucel Congar, Martin Richter, Juergen Hubbuch
Summary: Subcutaneous injection is crucial for treating diseases, especially with automated dosing for better results. Research on MEMS-based drug delivery devices like a 5 x 5 mm² silicon micropump shows high dosing precision and repeatability, laying the foundation for extremely miniaturized patch pumps.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Multidisciplinary
Song Chen, Jie Zhang, Zijian Huang, Liewei Wang, Haidong Liu, Fanxu Meng, Junwu Kan
Summary: A piezoelectric valveless pump with flexible actuators (PVPFA) is introduced, featuring flexible driving, changeable flow direction, and high output performance. The PVPFA consists of three flexible actuators and a pump body, with pumping direction controlled by adjusting the volume of the fluid medium in the hydraulic amplification chamber. Each flexible actuator adopts a hydraulic amplification structure, resulting in improved output performance. Experimental results demonstrate a maximum flow rate of 98.48 ml/min and a maximum pressure of 10.7 kPa for the PVPFA. This innovation offers a new approach for piezoelectric valveless pumps.
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
(2023)
Article
Chemistry, Multidisciplinary
Liu Yu, Mian Yu, Wei Chen, Shengjie Sun, Wenxin Huang, Tianqi Wang, Zhangwen Peng, Zewen Luo, Yixuan Fang, Yongjiang Li, Yang Deng, Meiying Wu, Wei Tao
Summary: This paper reports on a separable cancer vaccine, FeSHK@B-ovalbumin (OVA), based on bioadhesive nanoparticles (BNPs), which targets multi-epitope antigens and exhibits effective cancer immunotherapy. The FeSHK@B-OVA nanorocket initiates satellite-rocket separation in the acidic tumor microenvironment, leading to intracellular oxidative stress amplification. The prolonged drug retention within the tumor tissue triggers immunogenic cell death and enables robust antigen-specific antitumor immunity.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Engineering, Biomedical
Li Huang, Huaqiang Fang, Teng Zhang, Binbin Hu, Shichen Liu, Fanzhen Lv, Zhaoxia Zeng, Huijie Liu, Weimin Zhou, Xiaolei Wang
Summary: Drug-eluting balloon (DEB) angioplasty is an effective treatment for cardiovascular and cerebro-vascular diseases. However, there are concerns about drug loss and rapid metabolization during the procedure. In this study, a new drug-loaded balloon with separable microneedles was developed, and the activation of the microneedles was achieved using a near-infrared ring laser. The slow release of the antiproliferative drug over a long period of time resulted in increased drug delivery efficiency and superior therapeutic effectiveness compared to the standard DEB.
BIOACTIVE MATERIALS
(2023)
Article
Instruments & Instrumentation
Chunhua Zhou, Yang An, Yongkang Yin, Zilong Ye, Fagang Zhao, Rui Liu, Liang Wang, Jianhui Zhang
Summary: A novel bellows-type piezo-hydraulic actuator with simple structure, large displacement, and self-locking when power is off was proposed, manufactured, and tested in this study. The results show that the actuator has maximum average velocities of 17.24 mu ms-1 and 13.9 kHz, maximum output forces of 0.163 N and 0.044 N, and self-locking forces of 0.059 N and 0.009 N for the big and small bellows-type actuators, respectively.
SMART MATERIALS AND STRUCTURES
(2021)
Article
Thermodynamics
Huanlong Liu, Xu Wang, Hao Tian, Shicheng Gan, Jianyi Zhou, Jiawei Wang
Summary: This paper proposes an energy-saving starting method for electro-hydraulic hybrid powertrain, which reduces the starting current and battery consumption by using hydraulic power to restart the electric motor at a certain speed.
Article
Chemistry, Multidisciplinary
Lu Fan, Xiaoxuan Zhang, Min Nie, Ye Xu, Yuetong Wang, Luoran Shang, Yongxiang Zhao, Yuanjin Zhao
Summary: This study proposes a new strategy for designing controllably separable microneedle patches by integrating photothermal responsive phase-changing microspheres into conical hydrogel microneedles. These patches can intelligently control the detachment of microneedles and sustainably release drugs, demonstrating practical values for versatile drug delivery and clinical applications.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Automation & Control Systems
Ajit Kumar Pandey, K. Dasgupta, Sanjoy K. Ghoshal
Summary: This work presents a scheme of a dual input-single output closed-circuit hydraulic drive and analyzes its dynamics through modeling and simulation. The study considers non-linear losses and temporal behaviors of rotary actuators, and discusses the effects of parameter changes on the drive's performance. The system model is validated by comparing test data with simulation results, providing useful insights for application engineers in selecting and developing similar drives for mobile equipment.
Article
Chemistry, Physical
Yuan Yang, Huaqing Chu, Yan Zhang, Lingling Xu, Ruizeng Luo, Hui Zheng, Tailang Yin, Zhou Li
Summary: A lidocaine/hyaluronic acid bubble microneedle patch was developed for rapid drug delivery and efficient analgesia, providing a promising alternative for local anesthesia.
Article
Engineering, Biomedical
SeungHyun Park, KangJu Lee, Heekyoung Kang, YeJin Lee, JiYong Lee, Jeong Hun Kim, Hyun Beom Song, WonHyoung Ryu
Summary: The study showed that using a single microneedle injection into the cornea can substitute for the repeated application of eyedrops in the treatment of infectious keratitis, achieving comparable efficacy.
ADVANCED HEALTHCARE MATERIALS
(2021)
Review
Instruments & Instrumentation
Wei Li, Dabing Li, Lipeng He, Yage Wang, De Wang, Lu Qiao
Summary: Valve-less piezoelectric pumps have been widely applied in fields such as fuel supply, chemical analysis, biological fields, drug injection, lubrication, and irrigation due to their advantages of small size, low power consumption, no wear, and reliable performances. The various forms and working processes of valve-less pumps are discussed, along with the advantages and disadvantages of pump characteristics under different driving conditions. The applications and future development of valve-less pumps are also analyzed. This work provides guidance for enhancing output performances and applications.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2023)
Review
Chemistry, Multidisciplinary
Qiufeng Yan, Jiahan You, Wanting Sun, Ying Wang, Hongmei Wang, Lei Zhang
Summary: Piezoelectric jet and atomization devices have significant advantages in terms of simple construction and low cost, and are widely used in various industries. This paper discusses the definition, classification, development history, structural characteristics, advantages and drawbacks of piezoelectric jet and atomization devices, as well as summarizes their research achievements in areas such as cell printing, spray cooling, and drug delivery. Prospects for the future development trends of these devices are also provided.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Biomedical
Fatemeh Mokhtari, Bahareh Azimi, Maryam Salehi, Samaneh Hashemikia, Serena Danti
Summary: Organic piezoelectric biomaterials, especially PVDF-based polymers, have gained significant attention in biomedical devices for their ability to convert physiological movements into electrical signals. These materials show promising applications in controlled drug delivery systems, tissue engineering, microfluidics, and artificial muscle actuators.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Instruments & Instrumentation
Jun Jian Zhang, Min Qian, Qiaosheng Pan, Zhihua Feng
Summary: This study embedded two tubes into a piezoelectric-hydraulic hybrid actuation system for the first time, which acted as mechanical bandstop filters to reduce liquid pulsation rate and minimize the influence of inertial force on the actuator, leading to significant improvement in its output performance.
SMART MATERIALS AND STRUCTURES
(2023)
Review
Biophysics
Nur Farrahain Nadia Ahmad, Nik Nazri Nik Ghazali, Yew Hoong Wong
Summary: The review discusses advanced stimuli-responsive approaches and the evolution of wearable patch pumps, highlighting key challenges and future development trends in controllable transdermal drug delivery systems. Various advanced delivery strategies and mechanisms, including mechanical, electrical, light, thermal, acoustic, and glucose-responsive approaches, are summarized with representative examples.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Thermodynamics
Junwu Kan, Jin Wang, Fanxu Meng, Chenyang He, Shengjie Li, Shuyun Wang, Zhonghua Zhang
Summary: This study proposes a Downwind-Vibrating Piezoelectric Energy Harvester under the disturbance of a downstream baffle (DVPEH) to improve the structure reliability and electric output of traditional Piezoelectric Wind-induced Vibration Energy Harvesters (PWVEHs). The DVPEH utilizes a downstream baffle to adjust working characteristics and enhance power generation capacity. Theoretical investigation, simulation, fabrication, and experimental testing confirm the feasibility and effectiveness of the DVPEH.
Article
Engineering, Electrical & Electronic
Junwu Kan, Yaqi Wu, Shengjie Li, Shuyun Wang, Zhonghua Zhang
Summary: This paper presents a tunable rotational energy harvester that utilizes magnetic interaction force to enhance robustness and environmental adaptability. The harvester has the simultaneous functionality of frequency tuning and amplitude limiting. An analytical model is established and simulated to analyze the influence of structural parameters on output characteristics. Experimental results verify the feasibility of the proposed harvester, which demonstrates multiple effective rotational speeds and adjustable resonant frequency to adapt to different rotational speed ranges. The maximum power of 9.95 mW is achieved with a matched load resistance of 200 kΩ.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Thermodynamics
Jin Wang, Junwu Kan, Yiqun Gu, Chenyang He, Zongjin Ren, Fanxu Meng, Shuyun Wang, Zhonghua Zhang
Summary: A piezoelectric wind energy harvester with a double-bluffbody exciter (DE-PWEH) is proposed to improve the reliability and operating bandwidth of existing wind energy harvesters. The DE-PWEH, with a downwind structure and indirect excitation, demonstrated high reliability and broad working bandwidth. Experimental results showed that the relative size and position of the adjustable plate and cylindrical shell significantly affected the output and operating bandwidth.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Thermodynamics
Zhonghua Zhang, Shijie Lin, Yiqun Gu, Li Zhang, Shuyun Wang, Shijie Zhai, Junwu Kan
Summary: This study proposes a novel deformation-controllable piezoelectric vibration energy harvester (D-CPVEH) that uses a wedge cam to limit the maximum deformation of the cantilevered piezoelectric vibrator. The results show that the D-CPVEH has high reliability and voltage output.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Engineering, Electrical & Electronic
Zhenzhong Song, Jianming Wen, Nen Wan, Jijie Ma, Yili Hu, Yu Zhang, Zengfeng Gao, Miao Zheng, Jianping Li
Summary: Electrical impedance tomography (EIT) is a novel industrial monitoring technology that offers safety, inexpensiveness, and real-time monitoring. A new optimization algorithm called H-GVSPM based on the Hadamard product is proposed in this study to reduce artifacts and improve image quality in EIT. Simulation and experimental results show that H-GVSPM effectively reduces artifacts in reconstructed images and increases the correlation coefficient compared to GVSPM and TV methods. This study provides a reference method for improving image quality and contributes to the future application of EIT in industry, biomedicine, and other fields.
IEEE SENSORS JOURNAL
(2023)
Article
Automation & Control Systems
Qitao Lu, Jijie Ma, Xiaohui Lin, Yili Hu, Jianping Li, Jianming Wen
Summary: In this article, a novel piezoelectric inchworm actuator with magnetorheological elastomer as clamping material is proposed. The actuator achieves high positioning accuracy and large output force through two cam mechanisms for driving and clamping actions. Experimental results demonstrate the great application potential of this actuator in the invasive brain-computer interface.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Automation & Control Systems
Jianping Li, Shichu Chen, Lidong He, Jiwen Jian, Yili Hu, Jianming Wen, Song Chen, Junwu Kan
Summary: This article proposes a bionic type piezoelectric actuator based on the walking motion of L-shaped flexure mechanisms, which can improve motion efficiency and achieve large working stroke with high output load. By eliminating backward motion and using two flexure mechanisms for bionic walking motion, the motion speed and maximum load can be significantly improved.
IEEE-ASME TRANSACTIONS ON MECHATRONICS
(2023)
Article
Materials Science, Multidisciplinary
Junwu Kan, Li Zhang, Shuyun Wang, Xinyue Kan, Yiqun Gu, Zemeng Yang, Zhonghua Zhang
Summary: A wheel-type cantilevered piezoelectric rotational energy harvester (wheel-type PREH) was presented to harvest energy from rotational motion. The performance of the wheel-type PREH was affected by multiple parameters, including rotary speeds, proof mass and piezo-cantilever mass, number of exciting magnets, and cylindrical sleeve materials. The optimal load resistance for maximal power output varied with rotary speeds.
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
(2023)
Article
Engineering, Mechanical
Zhonghua Zhang, Yiqun Gu, Shuyun Wang, Jin Wang, Shengjie Li, Fanxu Meng, Junwu Kan
Summary: This paper proposes a low-frequency piezoelectric energy harvester that uses secondary excitation of pressured fluid to scavenge low-frequency vibration energy in ambient environments. By transferring the pressure energy of pressured liquid medium, this harvester indirectly converts vibration into electric energy. Simulations and experiments demonstrate the good performance and feasibility of this novel structure in low-frequency high-intensity vibration. The results show that the diameter of damping orifice, initial system backpressure, and proof mass significantly affect the resonance frequency and output voltage.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Thermodynamics
Lipeng He, Yuhang Han, Lei Sun, Hongxin Wang, Zhonghua Zhang, Guangming Cheng
Summary: In this paper, a hybrid energy harvester (HEH) with a combination of piezoelectric and electromagnetic mechanisms is proposed for energy conversion. Experimental tests show that when the prototype is assembled with optimal structural parameters, the maximum output voltages of a single PEH and EMH are 56.24 V and 1.016 V, and the maximum output power of HEH is 22.78mW, which is significantly higher than that of PEH and EMH. Subsequent underwater and application tests demonstrate that HEH can easily power sensors and small electronic devices, providing a new power supply scheme for monitoring equipment in deep-sea and ocean environments.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Thermodynamics
Guocheng Shen, Yili Hu, Jianping Li, Jianming Wen, Jijie Ma
Summary: This paper proposes a piezo-triboelectric nanogenerator (PE-TENG) that integrates TENG and PENG via charge pumping strategy to solve the problem of continuous power supply for sensor nodes. The strategy achieves direct coupling of the outputs from two different types of nanogenerators, significantly improves the power integration efficiency, and reduces the establishing time of PE-TENG to the millisecond level. The PE-TENG achieves a maximum peak power of 5.9 mW and an average power of 2.1 mW at a low drive frequency of 2.5 Hz, successfully powering some electronic devices.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Thermodynamics
Song Chen, Wentao Cheng, Zijian Huang, Ruibin Wang, Yiqun Gu, Zhonghua Zhang, Jiantao Wang, Junwu Kan
Summary: With the continuous development of information technology and electronic components, the heat dissipation needs of electronic chips are constantly increasing. In this study, a miniature atomization-air-cooled heat sink for electronic chips (MAHSEC) is proposed, which combines a cooling fan and piezoelectric ultrasonic atomizer to improve the utilization of micro droplets and enhance heat dissipation performance. Experimental results demonstrate that under specific driving voltage and frequency, MAHSEC reduces the temperature of electronic chips significantly, indicating its excellent thermal management performance.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Green & Sustainable Science & Technology
Gang Yu, Lipeng He, Hongxin Wang, Lei Sun, Zhonghua Zhang, Guangming Cheng
Summary: This paper presents a rotating piezoelectric energy harvester (PEH) designed for automotive motion. The output performance of the harvester is optimized through a mechanical tuning method, which involves changing the tip mass of the piezoelectric cantilever beam and the base mass. The motion state and natural frequency are analyzed through simulation, and an electromechanical coupling model is established to theoretically analyze the movement state of the PEH. Experimental tests are conducted to evaluate the power generation performance of the PEH under different environmental excitations, and the impact of self-excited vibration on its power generation performance is investigated. The experiments show that the harvester can achieve an output power of 6.25 mW under specific operating conditions.
Review
Instruments & Instrumentation
Yuhang Han, Lipeng He, Lei Sun, Hongxin Wang, Zhonghua Zhang, Guangming Cheng
Summary: This article reviews the research progress of P-EHEH at the application level, focusing on its application in human body devices, monitoring sensors, and power supply devices. The development status of back-end electronic modules and interface circuits is also summarized, and the future challenges and development prospects of P-EHEH are anticipated.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2023)
Article
Computer Science, Information Systems
Jijie Ma, Junhao Li, Xiaohui Lin, Xinsheng He, Yili Hu, Jianping Li, Jianming Wen
Summary: This study proposes a dual mode piezoelectric actuator for cell injection, which integrates stick-slip and inchworm modes. Experimental results show that this actuator can achieve fast positioning and accurate cell puncturing.
Article
Engineering, Electrical & Electronic
Kehao Feng, Zhenghua Zhang, Guohua Bai, Xiuyuan Fan, Rongzhi Zhao, Xuefeng Zhang
Summary: This paper proposes a new method to accurately evaluate the high-frequency power loss of soft magnetic materials. Through a two-step calibration, the system is able to compensate for the phase angle discrepancy between the exciting current and induced voltage, enabling a higher power loss measurement frequency.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Mingfang Kang, Tong Liu, Hongmei Sun, Lin Li, Keliang Wang
Summary: In this study, the absorption performance of ambient nitrogenous toxic gases on a monolayer of blue phosphorus phase germanium selenide (GeSe) was investigated using density-functional theory calculations. The results showed that GeSe monolayer exhibits higher sensitivity and selectivity for the hazardous gas NO.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Yaqiong Niu, Zhicheng Zou, Longsheng Cheng, Chaofeng Ye
Summary: This paper proposes a novel method to stabilize the laser diode output using a close-loop control with two feedbacks. The proposed method performs better for long-time operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jiajie Li, Ying Liu, Zhen Chai, Qian Cao, Renjie Li, Yueyang Zhai
Summary: This study proposed an efficient and high-quality beam-splitting method based on a diffractive optical element, enabling multichannel SERF atomic magnetometers to achieve ultra-high consistency and sensitivity. It has significant applications in array biomagnetic measurement systems.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
E. Oliveira, C. Doering, H. Fouckhardt
Summary: With the development of Lab on a chip technology, fluid management using dispersed droplets has become an important approach. Electrowetting on dielectric (EWOD) is one method for droplet actuation, but it requires prior definition of droplet positions. Optoelectrowetting (OEW) goes further by allowing changes in electrical parameters through impinging light spots, without the need for predefined droplet positions. This study re-evaluates the key parameters of OEW and explores their effects on droplet actuation using numerical optimization methods.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Haipeng Wang, Zhiguo Wang, Gancheng Zhu, Shuai Zhang
Summary: A novel capacitive proximity skin was developed to improve the performance of robotics in handling liquid-filled containers. This skin features a flexible structure that can adapt to different grippers and seamlessly integrate with Robot Operating System. Experimental results demonstrated that this proximity skin achieved data-lossless detection and contactless measurement of liquid level, making it suitable for grasping operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Tsenguun Byambadorj, Xiangyu Zhao, Yutao Qin, Yogesh B. Gianchandani
Summary: In this research, a monolithically microfabricated Knudsen pump (KP) without suspended membranes was presented. These pumps offer improved mechanical robustness, wider process window, and simplified microfabrication process compared to previous designs. The experimental results matched the modeling results well, indicating the potential for monolithic integration onto complex lab-on-a-chip systems.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Hamed Karami, Saeed Karami Chemeh, Vahid Azizi, Hooman Sharifnasab, Jose Ramos, Mohammed Kamruzzaman
Summary: Aroma is a significant quality trait for pharmaceutical plants and their products, indicating the quality of the raw material. An electronic nose is an efficient approach for identifying and evaluating the aroma of essential oils. In this study, tarragon was dried at different temperatures and air velocities, and the purity of tarragon essential oil was evaluated using an electronic nose. Multivariate data analysis and artificial neural networks modeling were employed to quantify and classify the obtained essential oils.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Xiaoyang Duan, Dan Xu, Wenjun Jia, Ran Li, Bohao Sun, Ruitian Yan, Wenjie Zhao
Summary: Flower-like WO3/WS2 heterojunction materials constructed via a low-temperature in-situ oxidation method exhibit significant improvements in the detection of NO2 gas in gas sensors, along with good selectivity and reproducibility.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Peng Yu, Mengyang Zhang, Manqi You, Yuxi Gao, Landong Xiao, Yan Peng, Jingxia Lai, Zhouzhao Shi, Siwei Luo, Gencai Guo, Gang Guo
Summary: Recent studies have shown that two-dimensional Janus transition metal dichalcogenides (TMDs) have great potential for applications in gas sensors. By conducting first principles calculations, this study explores the potential application of Pd-doped monolayer HfSeS as gas sensor materials for detecting CO, CO2, NH3, and NO. The results demonstrate the good thermodynamical stability and reversible adsorption of these molecules on both pristine and Pd-doped HfSeS, with Pd-doped HfSeS showing higher sensitivity towards NO due to its metallic behavior upon NO adsorption.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jinlan Yang, Linjiao Li, Jun Huang, Quan Zhang, Hiba Affane
Summary: This study proposes a method for large-scale aggregation of micro-particles by creating a vortex region using low-frequency oscillation. Experimental results show that this method can achieve a large aggregation area and has the advantages of low cost and low power consumption.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Jitendra Singh, Saurabh Kumar Gupta, Vinita
Summary: In this investigation, a Surface Acoustic Wave (SAW) formalin gas sensor was explored for low-level formalin gas sensing applications. The sensor showed stable response and high sensitivity to formalin gas concentration, making it a reliable and useful sensor for room temperature operations.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Junyao Wang, Yahao Liu, Huan Liu, Qi Hou, Jianxin Xu, Hongxu Pan, Jingran Quan, Yansong Chen, Hanbo Yang, Lixiang Li
Summary: A flexible electrode with a serpentine-shaped tetra-chiral structure was designed to improve the mechanical properties and prevent mechanical fracture of flexible electrodes. The research demonstrated that this structure reduced the maximum tensile stress by 87.19% compared to the existing tetra-chiral structure. The flexible electrode remained conductive even at a strain of 70% and showed resistance values of 5 ohm and 4.4 ohm at a bending angle of 180 degrees and after 1000 fold cycles. Furthermore, the flexible electrodes showed great potential in biological signal monitoring, particularly in collecting ECG and pulse signals.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
Taihao Chen, Yong Fang, Mengru Zhu, Zhiwei Zhao, Wei Lei, Zhuoya Zhu, Helong Jiang
Summary: Flexible dual-spectral carbon nanodots/flexible n-silicon heterojunction photodetectors with high responsivity and detectivity are reported. These detectors show photo response in UV illumination and only in forward bias under visible illumination. The photocurrent of the device remains high even under bending strain.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Engineering, Electrical & Electronic
M. S. Sikandar Bathusha, Israr Ud Din, Rehan Umer, Kamran A. Khan
Summary: Graphene-based nanomaterials are used as embedded sensors to monitor fracture behavior in composite structures. This study investigates the in-situ crack propagation and fracture behavior in a glass fiber reinforced polymer composite using embedded reduced graphene oxide coated fabrics and highly conductive graphene nanoplatelet paper.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
