Article
Food Science & Technology
Yahui Li, Yanxiao Li, Jiyong Shi, Zhihua Li, Xin Wang, Xuetao Hu, Yunyun Gong, Xiaobo Zou
Summary: A novel gas sensor based on silk fibroin fibers (SFFs) was proposed for detecting the freshness of pork. The sensor, fabricated through polymerization of polyaniline (PANI) and silver nanowires (AgNWs) on SFFs, showed great potential for applications in detecting the freshness of pork by measuring the total volatile basic nitrogen (TVB-N) index.
Article
Nanoscience & Nanotechnology
Jiabin Shen, Shanshan Xu, Cheng Zhao, Xiaopeng Qiao, Haiquan Liu, Yong Zhao, Jing Wei, Yongheng Zhu
Summary: In this study, a new metal oxide semiconductor gas sensor based on bimetal Au@Pt-modified alpha-Fe2O3 hollow nanocubes was developed for detecting trimethylamine gas. The sensor exhibited faster response time and higher response compared to conventional sensors, and showed promising application prospects in estimating seafood freshness on the spot. The high performance was attributed to the specific hollow morphology with high specific surface area and the synergistic effect of the bimetal Au@Pt.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Xuhan Li, Ling Jin, Anqi Ni, Liqiang Zhang, Lifang He, Hong Gao, Peng Lin, Kui Zhang, Xiangfeng Chu, Suhua Wang
Summary: In this study, a low temperature TMA gas sensor with antifreezing and superior mechanical properties was developed using Au nanoparticle-modified MXene. The MXene@Au hydrogel exhibited excellent antifreezing performance and mechanical properties. The flexible MXene@Au DN hydrogel sensor showed linear relationship between TMA sensitivity and concentration even under deformation, making it suitable for dynamic quality monitoring and prediction of marine fish products in the cold chain.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Applied
Cheng Zhao, Jiabin Shen, Shanshan Xu, Jing Wei, Haiquan Liu, Siqi Xie, Yingjie Pan, Yong Zhao, Yongheng Zhu
Summary: In this study, an efficient trimethylamine gas sensor was developed by loading gold nanoparticles on WO3 nanosheets. The sensor showed high sensitivity, rapid response and recovery time, low detection limit, and selective detection of trimethylamine, making it a promising tool for assessing seafood freshness.
Article
Chemistry, Analytical
Yuli Xu, Zicheng Liu, Jingren Lin, Jintao Zhao, Nguyen Duc Hoa, Nguyen Van Hieu, Alexander A. Ganeev, Victoria Chuchina, Abolghasem Jouyban, Daxiang Cui, Ying Wang, Han Jin
Summary: This research develops an integrated smart gas-tracking device for real-time monitoring of food freshness in refrigerators. By adjusting the oxygen concentration, the sensor demonstrates satisfactory selectivity and sensitivity to different gas species, with a fast response and recovery rate within 24 seconds. The built refrigerator prototype verifies the satisfactory performance of the sensor in discriminating food freshness.
Article
Chemistry, Applied
Lintao Zeng, Xiaoxue Xiao, Huan Ye, Dini Ma, Jinghong Zhou
Summary: In this study, a ratiometric fluorescence sensor was developed for the detection of meat spoilage. The sensor exhibited high sensitivity and fast response to cadaverine, a biomarker for spoiled meat. The test strips fabricated using the sensor showed a noticeable color change, providing a simple and visual method for monitoring beef spoilage. The integration of the test strips with a smartphone allows consumers and suppliers to obtain meat quality information easily.
Review
Food Science & Technology
Deyang Yu, Shasha Cheng, Yu Li, Wentao Su, Mingqian Tan
Summary: This review article summarizes the mechanism, fabrication methodologies, multifunctional applications, and optimization strategies of natural colorants-based intelligent colorimetric indicators. It also discusses the future research opportunities and challenges in this field. Based on the fundamental understanding and the latest research findings, this review article aims to facilitate the development of better, lower cost, and more reliable food freshness evaluation techniques for the modern food industry.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2023)
Article
Chemistry, Analytical
Wei Gong, Hong-Bin Yao, Tao Chen, Yu Xu, Yuan Fang, Hong-Yu Zhang, Bo-Wen Li, Jiang-Ning Hu
Summary: Real-time monitoring of food freshness remains a challenge due to the lack of portable, affordable, and efficient detection devices. In this study, we developed a simple sensing platform based on a smartphone app with a deep-learning model for real-time food freshness monitoring. By constructing colorimetric indicator bars on cellulose paper using gelatin methacryloyl (GleMA) and bromocresol green (BCG), and training a convolutional neural network (CNN) with labeled images, we achieved an overall accuracy of 96.2% in predicting meat freshness. By incorporating VGG 16 architecture and a marked-based watershed algorithm into the app, consumers can recognize meat freshness within 30 seconds by scanning the packaging. This sensing platform is sensitive, automatic, and non-destructive, making it suitable for real-time monitoring of food freshness in both the food industry and for consumers.
Article
Chemistry, Applied
Guannan Wang, Shaoyun Huang, Hui He, Jiawei Cheng, Tao Zhang, Zhiqiang Fu, Shasha Zhang, Yuzhi Zhou, Houbin Li, Xinghai Liu
Summary: Colorimetric sensing technology was used to monitor food freshness, showing that the sensor accurately reflects ammonia concentration and the freshness of Cod. Using a progress bar indicator can achieve non-destructive, more accurate, and commercially available food quality monitoring.
Article
Chemistry, Analytical
Manivannan Kalavathi Dhinakaran, Barry Lee Smith, Tirayut Vilaivan, Simon Maher, Thanit Praneenararat
Summary: A fluorescent array based on cyanostilbene was synthesized on a cellulose paper surface to rapidly detect biogenic amines released from spoiled meats. The high-throughput nature of this method revealed highly responsive molecules and offered flexibility in sensing applications. This study provides a robust and cost-effective tool for monitoring meat freshness.
Article
Spectroscopy
Muhammad Ameerullah Sahudin, Mohd Sukor Su'ait, Ling Ling Tan, Nurul Huda Abd Karim
Summary: A rapid and simple analytical tool has been developed to detect histamine in food, with the sensor showing good detection performance, selectivity, reproducibility, and successful application in salmon fillet analysis. This strategy has promising potential in food quality assurance and ensuring healthy consumption for consumers.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Analytical
Zongyan Quan, Hui He, Hang Zhou, Yuting Liang, Lei Wang, Songya Tian, Hongxiang Zhu, Shuangfei Wang
Summary: The novel intelligent nanofiber ratiometric fluorescent sensor BAsCNF has high sensitivity for detecting seafood freshness. It shows excellent response performance to biogenic amines, indicating high detection accuracy and broad application prospects.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Review
Food Science & Technology
Danfei Liu, Changfan Zhang, Yumei Pu, Siyuan Chen, Lei Liu, Zijie Cui, Yunfei Zhong
Summary: Recently, there has been a growing interest in intelligent packaging that displays the quality status of food through color changes, due to enhanced consumer awareness of food safety. pH-responsive freshness indicators based on natural food colorants and biodegradable polymers hold promise for monitoring packaged food quality effectively.
Article
Chemistry, Analytical
Matteo Tonezzer
Summary: In this study, a non-invasive, small, and fast device composed of a single semiconductor nanowire resistive sensor was used to monitor food freshness at different temperatures. The sensor, sensitive to ammonia and total volatile basic nitrogen, could distinguish between samples of fish and meat based on their freshness levels with high accuracy.
Article
Nanoscience & Nanotechnology
Yu Cui, Xiang Chen, Pengcheng Ma, Yukai Wang, Xiaoye Liang, Fenfen Zheng, Zheng Cai, Ping-xi Xiao, Lingling Li
Summary: In this study, a highly selective and sensitive colorimetric/SERS dual-mode sensing strategy was developed for the detection of TMAO. The strategy combines target-induced nanoprobe deactivation with a static headspace microextraction strategy. By tracking changes in colorimetric and SERS signals, the quantitative determination of TMAO was achieved. The proposed strategy exhibited a limit of detection of 1.57 μM in colorimetric mode and 5.33 μM in SERS mode. The dual-mode system was successfully applied for TMAO detection in real samples.
ACS APPLIED NANO MATERIALS
(2023)
Article
Engineering, Chemical
Chandrakant R. Sonawane, Kuldeep Tolia, Anand Pandey, Atul Kulkarni, Hitesh Punchal, Kishor Kumar Sadasivuni, Anil Kumar, Mohammad Khalid
Summary: In this paper, a numerical investigation and evaluation of the thermal characteristics of a closed-loop pulsating heat pipe are performed. The volume of fluid method is used to simulate the two-phase flow inside the heat pipe, and the numerical results are compared and validated with experimental data. The study concludes that a filling ratio of 65% is the optimized charge quality for the current configuration of the pulsating heat pipe.
CHEMICAL ENGINEERING COMMUNICATIONS
(2023)
Article
Energy & Fuels
Usha Sengamalai, Palanisamy Ramasamy, Thamizh Thentral, Karthikeyan Balasubramani, Manjunathan Alagarsamy, Suresh Muthusamy, Hitesh Panchal, Mayurappriyan Pudupalayam Sachithanandam, Kishor Kumar Sadasivuni
Summary: This research focuses on the novel 15-level inverter and reducing the number of power switches. By modifying the pulses of the switches and applying a filter, it successfully reduces harmonics, voltage stress, and common-mode voltage. This study is significant for the application of multi-level inverters in renewable energy.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Review
Engineering, Chemical
Prateek Malwe, Bajirao Gawali, Juned Shaikh, Mayur Deshpande, Rustam Dhalait, Shivani Kulkarni, Vaishnavi Shindagi, Hitesh Panchal, Kishor Kumar Sadasivuni
Summary: The increased use of fossil fuels in the industry has led to severe environmental issues, but utilizing waste heat as energy can reduce fuel usage and improve system performance. The Organic Rankine Cycle (ORC) is the most efficient and reliable method of converting low and medium temperature waste heat into usable power. Engineers are using exergy analysis to optimize system performance.
CHEMICAL ENGINEERING COMMUNICATIONS
(2023)
Article
Energy & Fuels
Geetha Anbazhagan, Divya Navamani, Lavanya Anbazhagan, Suresh Muthusamy, Santhiya Pandiyan, Hitesh Panchal, Meenakumari Ramachandran, Suma Christal Mary Sundararajan, Kishor Kumar Sadasivuni
Summary: This article assesses the performance of a 140-kW grid-connected photovoltaic plant installed on the roof of an aerospace hanger block in Tamil Nadu, India. The evaluation includes parameters such as AC and DC energy generated, yield, performance ratio, and capacity factor, providing insights into the practicality and sustainability of solar-powered PV systems in rural and remote areas.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Environmental Studies
Aparna Singh, Akhilesh Kumar Choudhary, Shailendra Sinha, Hitesh Panchal, Kishor Kumar Sadasivuni
Summary: This study aims to optimize vibrations in a single-cylinder variable compression ratio diesel engine driven by Jatropha biodiesel blend, resulting in a biodiesel yield of 81.6% and proposed optimum setting of engine input parameters for B30 blend. The experimental outcome reveals that B30 blend generated root mean square acceleration of 4.46 m/s(2) at above optimized conditions, with error percentage of 2.3356% and 1.3039% for B0 and B30 blend.
ENERGY & ENVIRONMENT
(2023)
Article
Telecommunications
M. Joseph Auxilius Jude, V. C. Diniesh, M. Shivaranjani, Suresh Muthusamy, Hitesh Panchal, Suma Christal Mary Sundararajan, Kishor Kumar Sadasivuni
Summary: This article proposes a delay assisted rate tuning (DART) approach for the vehicular internet of things network to overcome the inherent limitations of the transmission control protocol (TCP) in wireless link congestion control. The approach utilizes the utilization assisted reduction (UAR) algorithm and super linear convergence (SLC) algorithm to improve transmission rate and minimize bandwidth sharing disparity.
WIRELESS PERSONAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Aymen S. Abu Hatab, Yahia H. Ahmad, Muna Ibrahim, Alaa Elsafi Ahmed, Mohd Basyaruddin Abdul Rahman, Siham Y. Al-Qaradawi
Summary: Water electrolysis is a green route for energy generation, but the slow oxygen evolution reaction (OER) increases the reaction overpotential. This study developed Co-based nanomaterials as cost-effective and highly efficient catalysts for OER. Among the synthesized Co-based metal-organic frameworks, Co/MC-2MeIM showed the highest surface area and expressed the best catalytic performance in alkaline medium. The superior performance is attributed to the high content of Co3+ on the surface, high surface area, enhanced electrical conductivity induced by nitrogen doping, and the presence of defects.
Article
Engineering, Electrical & Electronic
Sakib Mahmud, Amith Khandakar, Muhammad E. H. Chowdhury, Mohammed AbdulMoniem, Mamun Bin Ibne Reaz, Zaid Bin Mahbub, Kishor Kumar Sadasivuni, M. Murugappan, Mohammed Alhatou
Summary: This study reports the development of a smart insole based on Fiber Bragg Gratings (FBG) that can simultaneously measure plantar pressure and temperature. The developed insole outperforms a commercially available system in terms of cost, precision, and real-time data display of foot pressure and temperature.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Materials Science, Multidisciplinary
Vijayalakshmi Jagadeesan, Dinesh Venkatachalam, Vibin Mammen Vinod, Ashok Kumar Loganathan, Suresh Muthusamy, Mahendran Krishnamoorthy, Kishor Kumar Sadasivuni, Mithra Geetha
Summary: A metamaterial sensor antenna is designed and tested to detect breast cancer by utilizing the electrical characteristics of breast cancer cells. The antenna is designed using the Minkowski fractal curve and a ring-shaped Split Ring Resonator (SRR), providing a simple and efficient solution. Through numerical investigations, it is found that the third iteration of the Minkowski fractal curve yields the best performance. The fabricated antenna resonates at frequencies of 2.35, 2.42, and 2.52 GHz for different dielectric constants and conductivity, demonstrating its effectiveness and selectivity with different cancer cell lines.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Biotechnology & Applied Microbiology
Partha Kumbhakar, Mizaj Shabil Sha, Chandra Sekhar Tiwary, Asan G. A. Muthalif, Somaya Al-maadeed, Kishor Kumar Sadasivuni
Summary: For many biomedical applications, high-precision CO2 detection with a rapid response is crucial. 2D materials are particularly important for electrochemical sensors due to their superior surface-active characteristics. The liquid phase exfoliation method of 2D Co2Te3 production is used for electrochemical sensing of CO2. The Co2Te3 electrode outperforms other CO2 detectors in terms of linearity, low detection limit, and high sensitivity.
Article
Chemistry, Multidisciplinary
Baleeswaraiah Muchharla, Moumita Dikshit, Ujjwal Pokharel, Ravindranath Garimella, Adetayo Adedeji, Kapil Kumar, Wei Cao, Hani Elsayed-Ali, Kishor Kumar Sadasivuni, Naif Abdullah Al-Dhabi, Sandeep Kumar, Bijandra Kumar
Summary: This study examines the performance of reduced silver (rAg) and reduced copper (rCu) catalysts in selective electrochemical hydrogenation (ECH) reactions. The rAg catalyst exhibits more than double the yield and selectivity for the desired product compared to Ag film, making it a promising catalyst for low-energy and high-yield ECH processes.
FRONTIERS IN CHEMISTRY
(2023)
Article
Food Science & Technology
Surya Devarajan, Mizaj Shabil Sha, Mithra Geetha, Johaina Khalid Alahmad, Mohammed Shoaib Taufeeq Shaikh, Suresh Muthusamy, Kamal Kumar Kushwah, Kishor Kumar Sadasivuni
Summary: This study explores the use of three dyes (cresol red, chlorophenol red, and bromocresol green) to analyze the presence of sodium sulfite (SS) in a low-cost, disposable paper sensor with a visible detection limit of 0.05 M. The visual paper sensor shows high selectivity and sensitivity in detecting sodium sulfite at room temperature. An IoT-based sensor was also developed to practically apply the method, offering a rapid and cost-effective alternative to heavy-duty instruments. These sensors have significant implications for food quality monitoring and the detection of sodium sulfite in medicinal items.
JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION
(2023)
Article
Engineering, Electrical & Electronic
Anbarasan Palani, Venmathi Mahendran, Krishnakumar Vengadakrishnan, Suresh Muthusamy, Om Prava Mishra, Ponarun Ramamoorthi, Muni Raj Maurya, Kishor Kumar Sadasivuni
Summary: The article presents a new power conversion method for parallel-operated wind energy conversion systems. This method utilizes new multilevel inverter (MLI) topologies with reduced switch counts, lowered conduction losses and a very good output voltage spectrum. The power conversion using a novel multilevel DC to AC converter has been proven to have better efficiency, voltage utilization and power quality.
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF ELECTRICAL ENGINEERING
(2023)
Review
Environmental Sciences
Mithra Geetha, Sumalatha Bonthula, Somaya Al-Maadeed, Hamad Al-Lohedan, Jothi Ramalingam Rajabathar, Selvaraj Arokiyaraj, Kishor Kumar Sadasivuni
Summary: Numerous conventional methods are available for analyzing various water quality parameters to determine the water quality index. Ongoing surveillance is necessary for large bodies of water to support a robust surface and groundwater ecosystem. This review paper provides an overview of water quality monitoring, modeling, numerous sensors used, and various artificial intelligence approaches to predict the water quality index.
Article
Engineering, Civil
Ponnusamy Kulanthaivel, Ammapalyam Ramasamy Krishnaraja, Suresh Muthusamy, Om Prava Mishra, Mizaj Shabil Sha, Kishor Kumar Sadasivuni
Summary: The environmental impacts of petroleum-contaminated clay have intensified, but the use of precipitated silica has proved to be an effective solution. A series of experiments were conducted to compare the soil characteristics of the contaminated clay with and without the treatment of precipitated silica. The results showed that a dosage of 6% resulted in the optimum strength and improved stiffness and strength parameters.
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF CIVIL ENGINEERING
(2023)
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)
