Article
Engineering, Electrical & Electronic
Chao Qi, Naohiro Sugita, Tadahiko Shinshi
Summary: This paper reports on the development of a soft electromagnetic microactuator using a flexible coil made of conductive polymer composite. The coil is able to move with the polymer membrane without affecting its flexibility. The resistivity of the coil can be improved through surface treatment and thermal annealing. The prototype actuator demonstrates a large range of displacements and stability.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Multidisciplinary
Ruijia Xu, Yu-Sheng Lin
Summary: An actively tunable optical metadevice is proposed in this work to achieve multifunctional applications by integrating self-assembly electrothermal actuator (ETA) and magnetic metamaterial. The metadevice provides high robustness and controllability, allowing manipulation of the incident electromagnetic response through driving external electromagnetic fields and magnetic forces.
Article
Chemistry, Multidisciplinary
R. Karimi-Chaleshtori, A. H. Nassajpour-Esfahani, M. R. Saeri, P. Rezai, A. Doostmohammadi
Summary: A simple, fast, and ecofriendly method for synthesizing silver nanowires with high aspect ratios was presented, with thorough investigation of the effects of reaction parameters on the synthesis process. The fabricated polymer nanocomposites showed a combination of flexibility, transparency, and high electrical conductivity, making them potential candidates for lab-on-a-chip and biosensing applications.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Polymer Science
F. J. Vazquez-Perez, C. Gila-Vilchez, J. D. G. Duran, A. Zubarev, L. Alvarez de Cienfuegos, L. Rodriguez-Arco, M. T. Lopez-Lopez
Summary: The field of soft actuators is currently shifting towards hydrogels as a promising material that can overcome the limitations of elastomers and expand the applications of soft actuators. Research on the mechanical actuation of hydrogels is challenging but holds potential for novel developments in the field.
Article
Engineering, Electrical & Electronic
Mohammadreza Lalegani Dezaki, Mahdi Bodaghi
Summary: Magnetorheological elastomer (MRE) composite actuators have the advantages of remote control, swift movement, adaptation to rough surfaces, and secure interaction with humans. This paper proposes a new conceptual design for bi-stable MRE-based electroactive composite actuators with high performance by combining MRE composites and 4D printing of conductive shape memory polymers. Experimental results demonstrate the immense potential of the developed composite actuators as mechanical and biomedical devices.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Materials Science, Composites
Xichen Jia, Bin Shen, Jiali Chen, Guoqing Wang, Zhouping Sun, Wenge Zheng
Summary: This study presents the fabrication of lightweight and flexible thermoplastic polyurethane composite foams with highly conductive cotton-derived 3D carbon networks and microporous elastic TPU skeleton by freeze-drying method. These foams exhibit high shielding effectiveness, thermal-insulation performance, and low-voltage driven joule-heating capability, as well as good recyclability and long-term durability.
COMPOSITES COMMUNICATIONS
(2022)
Article
Materials Science, Composites
Zhenhua Wang, Jingze Wang, Jizhe Wang, Boyu Zhang, Yuan Yao, Nanjia Zhou, Weicheng Cui
Summary: In this study, a novel 3D printing technology called Sequential Multimaterial Embedded 3D Printing (SME3P) is used to fabricate soft composite actuators with complex external geometries and internal structures. Various composite sensors and actuators are successfully fabricated to demonstrate the feasibility of SME3P for real-life applications.
COMPOSITES COMMUNICATIONS
(2023)
Article
Engineering, Mechanical
Kim Tien Nguyen, Han -Sol Lee, Jayoung Kim, Eunpyo Choi, Jong -Oh Park, Chang- Sei Kim
Summary: This study proposes a novel electro-permanent magnetic actuator with a composite core structure that significantly improves the magnetic field and field gradient, enabling high-precision manipulation of micro-/nanorobots.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Polymer Science
Houmin Jiang, Youzhang Zhu, Guofeng Zhao, Anwei Tian, Hengrong Li, Jian Li, Shuai Zhao, Guangfa Zhang, Ailin Gao, Jian Cui, Yehai Yan
Summary: By using highly conductive silvered aramid microfibers and conductive porous PDMS composite foams, absorption-dominated electromagnetic interference (EMI) shielding materials with high conductivity and lightweight characteristics were developed. These materials can be used in special constructions, aerospace, military equipments, and transportation, providing effective EMI shielding properties.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Engineering, Environmental
Manjeet Singh, V. G. Abhijitha, B. R. K. Nanda, Deval Pareek, Satyapriya Nath, Sharmistha Anwar, Avijit Kumar, Prasant K. Nanda, Subash Chandra Sahoo
Summary: The transfer of strong photomechanical effect from dynamic crystals to hybrid polymer composites has great potential for actuation and photo-switch development. A synthesized nitropentaamminecobalt(III) complex showed fast photomechanical motions under UV light, attributed to the formation of metastable nitrito-coordinated species. Composite films using photoactive crystals with different polymers exhibited excellent photo-actuation, with the ability to be deflected up to 90 degrees within a few seconds of UV light onset. The dynamical transfer of photomechanical energy from crystal to composite films enables the assembly of a prototype photoswitch.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Bingfang Zou, Shiyun Lou, Jie Duan, Shaomin Zhou, Yongqiang Wang
Summary: Magnetic-based microfluidic SERS biosensors have great potential in biological analyses due to their easy manipulation, miniaturization, and ultrasensitivity. However, collecting reliable SERS nanoprobe signals for quantitative analysis is challenging due to the irregular aggregation of magnetic carriers. In this study, magnetic/plasmonic hybrid nanostirrers embedded with a Raman reporter are developed to improve the reliability of microfluidic SERS biosensors. Experimental results showed that SERS signals from the magnetic hybrid nanostirrers could serve as microenvironment beacons, and a signal filtering method was proposed to eliminate the influence of irregular aggregation on the SERS nanoprobe.
Article
Chemistry, Analytical
Shuhai Jia, Jun Peng, Jiaming Bian, Shuo Zhang, Shunjian Xu, Bao Zhang
Summary: A MEMS electromagnetic swing-type actuator for an optical fiber switch is proposed in this paper. The actuator features a compact size, high output torque, and fast response time.
Article
Automation & Control Systems
Simon Duque Tisnes, Laurent Petit, Christine Prelle, Frederic Lamarque
Summary: This article presents the modeling and experimental validation of a digital actuator array used in a microfactory transportation system. The experimental results demonstrate the system's good conveyance performance, suggesting it as an interesting alternative to conventional conveyance systems.
IEEE-ASME TRANSACTIONS ON MECHATRONICS
(2021)
Review
Chemistry, Physical
Rajesh Kumar, Sumanta Sahoo, Ednan Joanni, Rajesh K. Singh, Wai Kian Tan, Kamal K. Kar, Atsunori Matsuda
Summary: The demand for electromagnetic interference (EMI) shielding has risen significantly due to rapid developments in the electronics industry. New materials like carbon-based nanostructures, polymers, and MXene-based 2D layered materials are being explored as alternatives to conventional metal sheets for EMI shielding, offering advantages such as low weight, cost-effectiveness, and good thermal/electrical properties. Composite materials combining polymers with conducting carbon fillers have potential as EM wave absorbers, while MXene-based materials have garnered attention for their application in EMI shielding.
Article
Materials Science, Composites
Jiulong Shi, Yajie Zhang, Tingting Shan, Rongrui Chen, Juan Guo, Chaojun Gao, Guoqiang Zheng
Summary: Soft actuators based on bilayered film architecture, consisting of PVDF/LDPE layers and CNTs as an electrode layer, were successfully fabricated via blow film molding. With the swelling ability of PVDF in acetone vapor as a driving force, the PVDF/LDPE/CNTs films showed rapid self-powered sensing property and excellent sensing durability. Combined with a paper doll, the films demonstrated highly efficient energy conversion and sensing ability.
COMPOSITES COMMUNICATIONS
(2023)
Review
Polymer Science
Rhonira Latif, Mimiwaty Mohd Noor, Jumril Yunas, Azrul Azlan Hamzah
Summary: This paper reviews the use of mechanical energy harvesters and microphone sensors in totally implanted hearing systems, highlighting the advantages and potential of polymer-based piezoelectric transducers.
Review
Chemistry, Analytical
Nurkhaizan Zulkepli, Jumril Yunas, Mohd Ambri Mohamed, Azrul Azlan Hamzah
Summary: Thermoelectric generators (TEGs) directly transform thermal energy into electrical energy using the Seebeck effect. However, the high-temperature condition limits their potential implementation, leading to research focusing on TEGs operating at low temperatures.
Article
Chemistry, Multidisciplinary
Lilik Hasanah, Adryan Ashidiq, Roer Eka Pawinanto, Budi Mulyanti, Chandra Wulandari, Ahmad Rifqi Md. Zain
Summary: This paper studies the optimization of perovskite solar cells with a two-dimensional nanodisk photonic crystal and an organic-inorganic lead-iodide perovskite as the absorber layer. Through finite-difference time-domain simulation, the optimal lattice constant and photonic crystal radius are determined, resulting in an absorption performance improvement of over 94% of incident light.
APPLIED SCIENCES-BASEL
(2022)
Article
Biochemistry & Molecular Biology
Norliana Yusof, Badariah Bais, Jumril Yunas, Norhayati Soin, Burhanuddin Yeop Majlis
Summary: This study presents the microfabrication of an LC wireless MEMS pressure sensor that utilizes a PMMA-Graphene membrane to increase sensitivity. Experimental results showed good sensor sensitivity and quality factor, indicating potential in biomedical sensor applications.
Article
Materials Science, Ceramics
Aini Ayuni Mohd Raub, Jumril Yunas, Mohd Ambri Mohamed, Badariah Bais, Azrul Azlan Hamzah, Jaenudin Ridwan, Jamal Kazmi, Muhamad Azuddin Hassan
Summary: Zinc oxide nanorods coated with graphene oxide were synthesized using the spray coating method in order to enhance photocatalytic activity. Through optimization of the synthesis parameters, the researchers were able to achieve successful coating and improve the photodegradation of organic contaminants. Various analytical techniques were employed to analyze the structural and optical properties of the nanorods, confirming the successful coating of graphene oxide. The experimental results demonstrated that the coating of graphene oxide enhanced the photocatalytic activity of the zinc oxide nanorods.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Electrical & Electronic
Farahdiana Wan Yunus, Nur Mas Ayu Jamaludin, Muhamad Ramdzan Buyong, Jumril Yunas, Abdul Halim Abdul Gafor, Burhanuddin Yeop Majlis, Azrul Azlan Hamzah
Summary: In this study, a nanoporous silicon membrane with embedded dielectrophoresis (DEP) electrodes was introduced to reduce blood clotting on the surface of an artificial kidney. The results showed that the performance of the ultrafiltration membrane was improved, and the coagulation of red blood cells on the membrane surface was effectively reduced.
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
(2023)
Article
Polymer Science
Aini Ayunni Mohd Raub, Ida Hamidah, Asep Bayu Dani Nandiyanto, Jaenudin Ridwan, Mohd Ambri Mohamed, Muhamad Ramdzan Buyong, Jumril Yunas
Summary: This paper presents the development of ZnO NRs/rGO-based photocatalysts integrated into a polymer-based microfluidic reactor for efficient photodegradation of water contaminants. The reactor system consists of a photocatalytic reactor, tree-branched microfluidic channels, and ZnO nanorods coated with reduced graphene oxide (rGO) on a glass substrate. The microfluidic system is made of PDMS and fabricated using soft lithography. The microfluidic platform aims to bring the nanostructured photocatalyst into close proximity to the water flow channel, reducing interaction time and providing effective purification performance. The functionality test showed a degradation efficiency of 23.12% within a residence time of less than 3 seconds.
Review
Multidisciplinary Sciences
Ida Hamidah, Roer Eka Pawinanto, Budi Mulyanti, Jumril Yunas
Summary: The research on MEMS energy harvester has been rapidly growing, with a focus on analyzing the impact of research activities in the field. The study identified China as the leading country in conducting projects related to MEMS energy harvesters, while the Journal of MEMS and Journal of Micromechanics and Microengineering are the top journals publishing reports on research progress in this area. The analysis highlights potential future research areas, including the use of new materials, new structures, and optimization of vibration concepts for MEMS energy harvesters.
Article
Engineering, Multidisciplinary
Jumril Yunas, Nur Indah, Hisyamudin M. Hanifah, Ida Hamidah, Doni F. Ramadhan, Iin Mustagisin, Badariah Bais, Azrul A. Hamzah
JOURNAL OF ENGINEERING SCIENCE AND TECHNOLOGY
(2020)
Article
Materials Science, Multidisciplinary
Rhonira Latif, Muhammad Fahmi Jaafar, Mohd Faizal Aziz, Ahmad Rifqi Md Zain, Jumril Yunas, Burhanuddin Yeop Majlis
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2020)
Article
Engineering, Multidisciplinary
Roni Sumantri, Lilik Hasanah, Mohammad Arifin, Yuyu Rachmat Tayubi, Chandra Wulandari, Dadi Rusdiana, Cahya Julian, Roer Eka Pawinanto, P. Susthita Menon, Siti Kudnie Sahari, Budi Mulyanti
JOURNAL OF ENGINEERING SCIENCE AND TECHNOLOGY
(2020)
Article
Engineering, Multidisciplinary
Budi Mulyanti, Eris Rifaldi, Gandi Sugandi, Arjuni Budi Pantjawati, Lilik Hasanah, Roer Eka Pawinanto, Asep Bayu Dani Nandiyanto, Jumril Yunas
JOURNAL OF ENGINEERING SCIENCE AND TECHNOLOGY
(2020)
Proceedings Paper
Engineering, Multidisciplinary
R. D. Purnomo, A. B. Pantjawati, L. Hasanah, R. E. Pawinanto, G. Sugandi, B. Mulyanti
INTERNATIONAL CONFERENCE ON INNOVATION IN ENGINEERING AND VOCATIONAL EDUCATION 2019 (ICIEVE 2019), PTS 1-4
(2020)
Article
Engineering, Multidisciplinary
Lilik Hasanah, Budi Mulyanti, Roer E. Pawinanto, Asep B. D. Nandiyanto, Yuski M. R. Faozan, Arjuni B. Pantjawati, Harbi S. Nugraha, Ahmad R. Md Zain, Janulis P. Purba
JOURNAL OF ENGINEERING SCIENCE AND TECHNOLOGY
(2020)
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)
