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Xiao P, Chen X, Cao D, Yuan Y, Dai Y, Ukrainczyk N, Koenders E. Mathematical Modeling of Initial Exothermic Behavior and Thixotropic Properties in Nanoclay-Enhanced Cementitious Materials. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1502. [PMID: 38612016 PMCID: PMC11012808 DOI: 10.3390/ma17071502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 03/19/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024]
Abstract
In the realm of cementitious materials, integrating nanoclay shows promise in enhancing properties relevant to additive manufacturing. This paper presents a novel mathematical model that combines simple empirical dissolution/nucleation Avrami-like kinetics with a thixotropic kinetics equation. To analyze the initial exothermic peak, two sets of the calculation parameter function are built to describe the exothermic rate as a function of time, following an exponential pattern. This allows for the prediction of the changes in cumulative heat and heat rate during hydration, considering different concentrations of nanoclay. In the rheological aspect, the relationship between shear stress, shear rate, and time is modeled as a combination of exponential dependencies. This enables the prediction of the variations in shear stress with one variable while holding the other constant (either time or shear rate). By integrating these aspects, this model effectively describes both the first exothermal peak and the rheological behavior during cement hydration with the inclusion of nanoclay. Validated against experimental results, these models demonstrate good accuracy (overall below 3% error), reliability, and applicability. The findings offer valuable insights into the thermal and rheological aspects of concrete printing, enabling informed design decisions for both scientific and industrial applications.
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Affiliation(s)
- Peng Xiao
- Institute of Construction and Building Materials, Technical University of Darmstadt, Franziska-Braun-Str. 3, 64287 Darmstadt, Germany; (P.X.); (D.C.); (E.K.)
| | - Xi Chen
- College of Civil Engineering and Architecture, Jiaxing University, Jiaxing 314001, China;
| | - Donglin Cao
- Institute of Construction and Building Materials, Technical University of Darmstadt, Franziska-Braun-Str. 3, 64287 Darmstadt, Germany; (P.X.); (D.C.); (E.K.)
| | - Yong Yuan
- College of Civil Engineering, Tongji University, Shanghai 200092, China;
| | - Ying Dai
- School of Aerospace Engineering and Applied Mechanics, Tongji University, Zhangwu Road 100, Shanghai 200092, China;
| | - Neven Ukrainczyk
- Institute of Construction and Building Materials, Technical University of Darmstadt, Franziska-Braun-Str. 3, 64287 Darmstadt, Germany; (P.X.); (D.C.); (E.K.)
| | - Eddie Koenders
- Institute of Construction and Building Materials, Technical University of Darmstadt, Franziska-Braun-Str. 3, 64287 Darmstadt, Germany; (P.X.); (D.C.); (E.K.)
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Matin Nazar A, Mohsenian R, Rayegani A, Shadfar M, Jiao P. Skin-Contact Triboelectric Nanogenerator for Energy Harvesting and Motion Sensing: Principles, Challenges, and Perspectives. BIOSENSORS 2023; 13:872. [PMID: 37754106 PMCID: PMC10526904 DOI: 10.3390/bios13090872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/16/2023] [Accepted: 08/22/2023] [Indexed: 09/28/2023]
Abstract
Energy harvesting has become an increasingly important field of research as the demand for portable and wearable devices continues to grow. Skin-contact triboelectric nanogenerator (TENG) technology has emerged as a promising solution for energy harvesting and motion sensing. This review paper provides a detailed overview of skin-contact TENG technology, covering its principles, challenges, and perspectives. The introduction begins by defining skin-contact TENG and explaining the importance of energy harvesting and motion sensing. The principles of skin-contact TENG are explored, including the triboelectric effect and the materials used for energy harvesting. The working mechanism of skin-contact TENG is also discussed. This study then moves onto the applications of skin-contact TENG, focusing on energy harvesting for wearable devices and motion sensing for healthcare monitoring. Furthermore, the integration of skin-contact TENG technology with other technologies is discussed to highlight its versatility. The challenges in skin-contact TENG technology are then highlighted, which include sensitivity to environmental factors, such as humidity and temperature, biocompatibility and safety concerns, and durability and reliability issues. This section of the paper provides a comprehensive evaluation of the technological limitations that must be considered when designing skin-contact TENGs. In the Perspectives and Future Directions section, this review paper highlights various advancements in materials and design, as well as the potential for commercialization. Additionally, the potential impact of skin-contact TENG technology on the energy and healthcare industries is discussed.
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Affiliation(s)
- Ali Matin Nazar
- Donghai Laboratory, Zhoushan 316021, China;
- Zhejiang University-University of Illinois at Urbana-Champaign Institute, Zhejiang University, Haining 314400, China
| | - Reza Mohsenian
- College of Health and Rehabilitation Sciences, Sargent College, Boston University, Boston, MA 02215, USA;
| | - Arash Rayegani
- Centre for Infrastructure Engineering, Western Sydney University, Kingswood, NSW 2747, Australia;
| | - Mohammadamin Shadfar
- School of Medicine, Zhejiang University, 866 Yuhangtang Rd., Hangzhou 310058, China;
| | - Pengcheng Jiao
- Donghai Laboratory, Zhoushan 316021, China;
- Institute of Port, Coastal and Offshore Engineering, Ocean College, Zhejiang University, Zhoushan 316021, China
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Rayegani A, Matin Nazar A, Rashidi M. Advancements in Triboelectric Nanogenerators (TENGs) for Intelligent Transportation Infrastructure: Enhancing Bridges, Highways, and Tunnels. SENSORS (BASEL, SWITZERLAND) 2023; 23:6634. [PMID: 37514929 PMCID: PMC10384071 DOI: 10.3390/s23146634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/16/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023]
Abstract
The development of triboelectric nanogenerators (TENGs) over time has resulted in considerable improvements to the efficiency, effectiveness, and sensitivity of self-powered sensing. Triboelectric nanogenerators have low restriction and high sensitivity while also having high efficiency. The vast majority of previous research has found that accidents on the road can be attributed to road conditions. For instance, extreme weather conditions, such as heavy winds or rain, can reduce the safety of the roads, while excessive temperatures might make it unpleasant to be behind the wheel. Air pollution also has a negative impact on visibility while driving. As a result, sensing road surroundings is the most important technical system that is used to evaluate a vehicle and make decisions. This paper discusses both monitoring driving behavior and self-powered sensors influenced by triboelectric nanogenerators (TENGs). It also considers energy harvesting and sustainability in smart road environments such as bridges, tunnels, and highways. Furthermore, the information gathered in this study can help readers enhance their knowledge concerning the advantages of employing these technologies for innovative uses of their powers.
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Affiliation(s)
- Arash Rayegani
- Centre for Infrastructure Engineering, Western Sydney University, Kingswood, NSW 2747, Australia;
| | - Ali Matin Nazar
- Zhejiang University/University of Illinois at Urbana-Champaign Institute, Zhejiang University, Haining 314400, China;
| | - Maria Rashidi
- Centre for Infrastructure Engineering, Western Sydney University, Kingswood, NSW 2747, Australia;
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Rayegani A, Saberian M, Delshad Z, Liang J, Sadiq M, Nazar AM, Mohsan SAH, Khan MA. Recent Advances in Self-Powered Wearable Sensors Based on Piezoelectric and Triboelectric Nanogenerators. BIOSENSORS 2022; 13:37. [PMID: 36671872 PMCID: PMC9855384 DOI: 10.3390/bios13010037] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/19/2022] [Accepted: 12/22/2022] [Indexed: 06/06/2023]
Abstract
Early clinical diagnosis and treatment of disease rely heavily on measuring the many various types of medical information that are scattered throughout the body. Continuous and accurate monitoring of the human body is required in order to identify abnormal medical signals and to locate the factors that contribute to their occurrence in a timely manner. In order to fulfill this requirement, a variety of battery-free and self-powered methods of information collecting have been developed. For the purpose of a health monitoring system, this paper presents smart wearable sensors that are based on triboelectric nanogenerators (TENG) and piezoelectric nanogenerators (PENG), as well as hybrid nanogenerators that combine piezoelectric and triboelectric nanogenerators (PTNG). Following the presentation of the PENG and TENG principles, a summary and discussion of the most current developments in self-powered medical information sensors with a variety of purposes, structural designs, and electric performances follows. Wearable sensors that generate their own electricity are crucial not only for the proper development of children and patients with unique conditions, but for the purpose of maintaining checks on the wellbeing of the elderly and those who have recently recovered from illness, and for administering any necessary medical care. This work sought to do two things at once: provide perspectives for health monitoring, and open up new avenues for the analysis of long-distance biological movement status.
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Affiliation(s)
- Arash Rayegani
- Department of Civil Engineering, Sharif University of Technology, Tehran 1458889694, Iran
| | | | - Zahra Delshad
- Department of Nursing, Kashan Branch, Islamic Azad University, Kashan 8715998151, Iran
| | - Junwei Liang
- College of Software Engineering, Shenzhen Institute of Information Technology, Shenzhen 518172, China
| | - Muhammad Sadiq
- Shenzhen Institute of Information Technology, Shenzhen 518172, China
| | - Ali Matin Nazar
- The Zhejiang University-University of Illinois at Urbana-Champaign Institute, Zhejiang University, Haining 314400, China
| | - Syed Agha Hassnain Mohsan
- Optical Communications Laboratory, Ocean College, Zhejiang University, Zheda Road 1, Zhoushan 316021, China
| | - Muhammad Asghar Khan
- Hamdard Institute of Engineering and Technology, Hamdard University, Islamabad 700081, Pakistan
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Rahimi Sardo F, Rayegani A, Matin Nazar A, Balaghiinaloo M, Saberian M, Mohsan SAH, Alsharif MH, Cho HS. Recent Progress of Triboelectric Nanogenerators for Biomedical Sensors: From Design to Application. BIOSENSORS 2022; 12:697. [PMID: 36140082 PMCID: PMC9496147 DOI: 10.3390/bios12090697] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/14/2022] [Accepted: 08/22/2022] [Indexed: 12/22/2022]
Abstract
Triboelectric nanogenerators (TENG) have gained prominence in recent years, and their structural design is crucial for improvement of energy harvesting performance and sensing. Wearable biosensors can receive information about human health without the need for external charging, with energy instead provided by collection and storage modules that can be integrated into the biosensors. However, the failure to design suitable components for sensing remains a significant challenge associated with biomedical sensors. Therefore, design of TENG structures based on the human body is a considerable challenge, as biomedical sensors, such as implantable and wearable self-powered sensors, have recently advanced. Following a brief introduction of the fundamentals of triboelectric nanogenerators, we describe implantable and wearable self-powered sensors powered by triboelectric nanogenerators. Moreover, we examine the constraints limiting the practical uses of self-powered devices.
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Affiliation(s)
- Fatemeh Rahimi Sardo
- Department of Mining Engineering, Shahid Bahonar University of Kerman, Kerman 7616913439, Iran
| | - Arash Rayegani
- Department of Civil Engineering, Sharif University of Technology, Azadi Ave, Tehran 1458889694, Iran
| | | | | | | | | | - Mohammed H. Alsharif
- Department of Electrical Engineering, College of Electronics and Information Engineering, Sejong University, Seoul 05006, Korea
| | - Ho-Shin Cho
- School of Electronic and Electrical Engineering, Kyungpook National University, Daegu 41566, Korea
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