Article
Engineering, Manufacturing
Qifeng Qian, Jan Henk Kamps, Brian Price, Hao Gu, Ricky Wildman, Richard Hague, Belen Begines, Christopher Tuck
Summary: In this study, a 3D reactive inkjet printing method was developed to successfully fabricate bisphenol A-polycarbonate material, demonstrating the capability to broaden the range of AM materials to include engineering grade polymers.
ADDITIVE MANUFACTURING
(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, Multidisciplinary
Miquel Moras, Carme Martinez-Domingo, Roger Escude, Cristian Herrojo, Ferran Paredes, Lluis Teres, Ferran Martin, Eloi Ramon
Summary: This paper presents an organic, fully recyclable and eco-friendly 20-bit inkjet-printed chipless RFID tag, which operates in the near field and is implemented using chains of resonant elements. The tag is read by displacing it over a resonator-loaded transmission line and each resonant element is interrogated by a harmonic signal tuned to the resonance frequency.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Analytical
Olalekan O. Olowo, Bryan Harris, Daniel Sills, Ruoshi Zhang, Andriy Sherehiy, Alireza Tofangchi, Danming Wei, Dan O. Popa
Summary: In this paper, a novel tactile sensor with a fingerprint design, named SkinCell, was proposed. The sensor was fabricated using a custom-built microfabrication platform and characterized under static and dynamic force loading. The results showed that the SkinCell had high spatial resolution and sensitivity, making it suitable for large area skins and fingertip human-robot interaction applications.
Article
Polymer Science
Ning Tu, Jeffery C. C. Lo, S. W. Ricky Lee
Summary: Inkjet printing is a promising method for depositing polymer and functional nanoparticles at the microscale. It has various applications in the fabrication of polyLEDs, polymer base electronics, color conversion layers, and QLEDs. The main challenges are printing high-resolution polymer dots and improving the uniformity of printed multicolor polyLEDs, QLEDs, and color conversion layers. This paper focuses on using PDMS as a functional polymer and presents an optimal ink to achieve a uniform PDMS dot array, while also evaluating the uniformity using PL spectrum and color coordinate value.
Article
Green & Sustainable Science & Technology
Juan J. Espada, Rosalia Rodriguez, Alejandro de la Pena, Mar Ramos, Jose L. Segura, Esther M. Sanchez-Carnerero
Summary: This study aims to assess the environmental impact of using an imine-based covalent organic framework (RT-COF-1) for surface printing (Case A) and 3D inkjet printing (Case B) through life cycle assessment (LCA) methodology. The results show that monomer synthesis is the main contributor to environmental impacts in both cases, and solvents used in Case A also have a significant contribution. Case B has lower environmental impacts compared to Case A. Furthermore, RT-COF-1 compares favorably with polymerizable ionic liquids (PILs) in terms of environmental performance for 3D printing.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Materials Science, Ceramics
Chaoyu Liang, Jin Huang, Jianjun Wang, Hongxiao Gong, Wang Guo, Ruiqi Cao, Pengbing Zhao
Summary: This research is the first attempt to utilize IJP technology in the field of LTCC. A stable SiO2-H3BO3 nanoceramic ink was developed and continuously printed using a piezoelectric nozzle with an array of spray holes. The printed layer was cured under ultraviolet light irradiation with the addition of selected photosensitive resins. The sintered ceramic sheets exhibited good surface flatness and microscopic sintering degrees, with ultra-low dielectric constant and low dielectric loss, indicating their suitability for microwave dielectric substrates.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Polymer Science
Christopher Billings, Ridwan Siddique, Yingtao Liu
Summary: Vat photopolymerization-based additive manufacturing plays a critical role in improving wearable sensor solutions. This study develops accurate strain sensors using a low-cost biocompatible polymer resin enhanced with multi-walled carbon nanotubes through a digital light processing-based AM system. The sensors demonstrate high strain capacity and durability, with the ability to achieve fine printing and alignment of the nanotubes. The resulting nanocomposite is suitable for customized and wearable strain sensors for finger motion monitoring.
Article
Materials Science, Multidisciplinary
Diana Hrakova, Pavel Ripka, Alexandr Laposa, David Novotny, Jiri Kroutil, Vojtech Povolny, Ondrej Kaman, Pavel Veverka
Summary: This article reports a novel non-planar fluxgate sensor based on inkjet-printed magnetic ink. The sensor features a wide open-loop linear range and relatively high sensitivity, meeting the requirements of electric current, position, and torque transducers.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Chemistry, Physical
Yipu Du, Ruoxing Wang, Minxiang Zeng, Shujia Xu, Mortaza Saeidi-Javash, Wenzhuo Wu, Yanliang Zhang
Summary: This study presents a novel wearable piezoelectric device fabricated using a unique material and process, featuring excellent performance and stretchability without the need for sintering and poling processing. The device can be used for gesture recognition and heartbeat monitoring, offering great potential for integration with a wide range of printed electronics and wearable devices.
Review
Engineering, Manufacturing
Rishabh Magazine, Bas van Bochove, Sedigheh Borandeh, Jukka Seppala
Summary: The demand for optical components such as microlenses has been rapidly growing, but conventional manufacturing methods are often time-consuming and harmful to the environment. To overcome these issues, 3D inkjet printing has attracted attention as an alternative technique for fabricating microlenses. This review investigates the process of 3D inkjet printing and identifies key components and methodologies for controlling the properties of the resulting microlenses. The study finds that 3D inkjet printing offers high flexibility, scalability, efficiency, and the ability to produce high-quality microlenses. Substrate modification is shown to be a key method for controlling the geometric and optical properties of the microlenses.
ADDITIVE MANUFACTURING
(2022)
Article
Materials Science, Multidisciplinary
Peng Zhao, Yinfeng He, Gustavo F. Trindade, Martin Baumers, Derek J. Irvine, Richard J. M. Hague, Ian A. Ashcroft, Ricky D. Wildman
Summary: A predictive model is developed for assisting the design and manufacture of structures using inkjet based 3D printing/additive manufacturing. This model incorporates critical processing parameters to predict ink conversion throughout the product, guiding users to optimize printing strategies for improved production quality and cost efficiency.
MATERIALS & DESIGN
(2021)
Article
Engineering, Electrical & Electronic
Grzegorz Tomaszewski, Piotr Jankowski-Mihulowicz, Jerzy Potencki, Alena Pietrikova, Peter Lukacs
Summary: This study investigates the fabrication of planar antennas using inkjet printing technology, demonstrating the feasibility of inkjet printing antennas on untreated PET. However, the ink deposition technique may lead to an increase in antenna resistance, and aging processes could result in a decrease in resistance. Future research should explore other equipment and materials for antenna printing.
MICROELECTRONICS RELIABILITY
(2022)
Article
Engineering, Electrical & Electronic
Abubakar Sharif, Turke Althobaiti, Abdullah Alhumaidi Alotaibi, Naeem Ramzan, Muhammad Ali Imran, Qammer H. H. Abbasi
Summary: This article presents an ink-jet printed ultrahigh-frequency (UHF) radio frequency identification (RFID) label for tagging fruits. The proposed tag antenna is based on a hybrid configuration, which consists of a loop, dipole-like strips (DLSs), and eye-shaped rectangular nested slots. The loop fulfills impedance matching proposes, while the eye-shaped slots assist to maintain high imaginary impedance to mitigate capacitive effects of high permittivity surfaces of fruits. The fabricated prototype of the proposed tag antenna achieved a read range of 3 m after mounting on apple. Moreover, the tag antenna is also tested for sensing spoilage of apple fruits.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Florian Muralter, Laura Arjona, Hugo Landaluce, Asier Perallos
Summary: This research introduces a passive, modular, computational ultra high frequency radio frequency identification (RFID) research platform, consisting of a software defined radio (SDR) reader and a modular UHF RFID tag. The tag can be subdivided into various modules optimized for easy connectivity, with experimental results confirming the platform's value in designing novel UHF RFID solutions.
IEEE SENSORS JOURNAL
(2021)