Article
Biophysics
Seyong Oh, Jae-Young Yoo, Woo-Youl Maeng, Seonggwang Yoo, Tianyu Yang, Susan M. Slattery, Sara Pessano, Emily Chang, Hyoyoung Jeong, Jihye Kim, Hak-Young Ahn, Yeongdo Kim, Joohee Kim, Shuai Xu, Debra E. Weese-Mayer, John A. Rogers
Summary: Temperature is a vital sign that is widely used in clinical medicine for various care decisions. The traditional methods of assessing body temperature can be challenging, especially for vulnerable patient populations. A simple, miniaturized, lightweight sensor is introduced as a wireless alternative to address these challenges and provide accurate temperature measurements in demanding applications such as neonatal care.
BIOSENSORS & BIOELECTRONICS
(2023)
Review
Engineering, Electrical & Electronic
Ren Liu, Siyuan Zhao, Jia Liu
Summary: Soft implantable bioelectronics play a crucial role in biological research and clinical applications, as they can provide high resolution and specific interrogation capabilities. Despite recent advancements, achieving miniaturized, scalable, and soft bioelectronic interfaces for a large number of cells in 3D tissues remains a challenge. This review discusses recent progress in the development of lithographically and/or genetically patternable electronic materials for implantable bioelectronics, with a focus on brain and heart interfaces. Future development in this field will involve the convergence of materials science, electrical engineering, and synthetic biology.
ACS APPLIED ELECTRONIC MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Gun-Hee Lee, Heejin Woo, Chanwoong Yoon, Congqi Yang, Jae-Young Bae, Wonsik Kim, Do Hoon Lee, Heemin Kang, Seungmin Han, Seung-Kyun Kang, Seongjun Park, Hyung-Ryong Kim, Jae-Woong Jeong, Steve Park
Summary: Conventional electronic skins are limited in their ability to be customized, but a new type of e-tattoo can be directly applied to the skin and designed according to user preferences. By using carbon nanotubes attached to liquid metal particles, e-tattoos achieve electrical conductivity and mechanical durability. The properties of the liquid metal suspension allow for the precise assembly of particles on the skin. E-tattoos are low-cost, easy to prepare, compatible with the skin, and have multiple functions, making them highly suitable for biomedical engineering applications.
ADVANCED MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Manping Jia, Mohammad Jafari, Pattawong Pansodtee, Mircea Teodorescu, Marcella Gomez, Marco Rolandi
Summary: Ions and biomolecules play a crucial role in biological systems, carrying signals and transferring information for communication and regulation of physiological processes. A newly developed ion pump allows for the controlled delivery of multiple ionic species on the same chip, with the dynamic concentration changes monitored using fluorescent dyes. By integrating machine learning for closed-loop control, precise dose control is achieved. This technology has the potential to finely regulate the extracellular environment and precisely control physiological processes.
Article
Engineering, Biomedical
Xue Wang, Xiao Xiao, Zhiping Feng, Yufen Wu, Jin Yang, Jun Chen
Summary: A soft bioelectronic patch has been developed to monitor respiration and cardiovascular activities during sleep in a wearable and non-invasive manner. The patch exhibits high sensitivity and low-frequency response, making it suitable for sleep monitoring and diagnosis of obstructive sleep apnea-hypopnea syndrome.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Dmitry Kireev, Jameson Kampfe, Alena Hall, Deji Akinwande
Summary: Graphene electronic tattoos (GETs) have emerged as unique tools for personalized healthcare. The latest version, GETs 2.0, exhibits superior electrical properties, sweat permeability, and robustness. By stacking graphene monolayers, the electronic properties of GETs are significantly enhanced. Furthermore, the addition of graphene nanoscrolls (GNS) or multilayer graphene structures reduces sheet resistance and skin impedance while improving consistency. GETs 2.0 also features microholes for sweat evaporation and advanced biplanar contact with the skin. Finally, multilayer GETs 2.0 can function as efficient skin-wearable electronic heaters.
NPJ 2D MATERIALS AND APPLICATIONS
(2022)
Review
Engineering, Biomedical
Leqian Wei, Shasha Wang, Mengqi Shan, Yimeng Li, Yongliang Wang, Fujun Wang, Lu Wang, Jifu Mao
Summary: This article reviews the fabrication technologies and surface modification methods of conductive fibers as biomedical electronic constructs, and provides detailed information on the applications of conductive fibers in tissue engineering and regeneration, implantable healthcare bioelectronics, and wearable healthcare bioelectronics. The current challenges and future perspectives of biomedical electronic constructs built by conductive fibers are also discussed.
BIOACTIVE MATERIALS
(2023)
Article
Multidisciplinary Sciences
Minsu Park, Jae-Young Yoo, Tianyu Yang, Yei Hwan Jung, Abraham Vazquez-Guardado, Shupeng Li, Jae-Hwan Kim, Jaeho Shin, Woo-Youl Maeng, Geumbee Lee, Seonggwang Yoo, Haiwen Luan, Jin-Tae Kim, Hee -Sup Shin, Matthew T. Flavin, Hong -Joon Yoon, Nenad Miljkovic, Yonggang Huang, William P. King, John A. Rogers
Summary: Thermal sensations play a crucial role in our perception of the physical world. Being able to recreate these sensations wirelessly through computer control can enhance virtual experiences in areas beyond video, audio, and haptic inputs. This article presents the development of a skin-integrated technology that generates thermal sensations across the skin with power efficiency and real-time control. The system utilizes passive cooling mechanisms, switchable thermal barrier interfaces, resistive heaters, and flexible electronics with wireless interfaces to portable devices, the internet, and cloud data infrastructure. Experimental studies and simulations guide the design choices, and demonstrations showcase applications in thermoregulation, social interactions, and sensory expansion.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Review
Chemistry, Multidisciplinary
Mingyu Sang, Kyubeen Kim, Jongwoon Shin, Ki Jun Yu
Summary: This study introduces the recent developments in wearable and implantable bioelectronics through the use of ultra-thin encapsulation technologies and novel materials, aiming to improve the stability and electrical performance of the devices and optimize their use in physiological environments.
Review
Materials Science, Multidisciplinary
Eleanor Ostroff, Kavita Parekh, Aleksander Prominski, Bozhi Tian
Summary: Biocompatible and nanoscale technologies have the potential to revolutionize medical and industrial fields, enabling personalized medicine and precision therapies. These advancements in nanoenabled and biocompatible technologies aim to improve treatment precision, reduce adverse reactions, and achieve more accurate drug delivery.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Materials Science, Multidisciplinary
Mary C. Machado, Marjon Zamani, Susan Daniel, Ariel L. Furst
Summary: The advancement of bioelectrochemical platforms has provided new opportunities for studying and detecting emerging pathogens. By incorporating host membrane material into electrochemical devices, researchers can gain unprecedented insights into the interaction between viruses and host cells. New capture methods enable the specific detection of bacterial pathogens, enhancing the overall capabilities of these devices.
Article
Materials Science, Multidisciplinary
Sneha Shankar, Brendan B. Murphy, Nicolette Driscoll, Mikhail Shekhirev, Geetha Valurouthu, Kateryna Shevchuk, Mark Anayee, Francesca Cimino, Yury Gogotsi, Flavia Vitale
Summary: Ti3C2T(x) MXene is gaining importance in wearable and implantable medical technologies due to its outstanding electrical, electrochemical, and optoelectronic properties, as well as its compatibility with solution-based processing. However, the long-term stability and degradation of Ti3C2T(x) MXene films have not been thoroughly investigated, which hinders its use for chronic applications.
Article
Materials Science, Multidisciplinary
Nicholas Turetta, Wojciech Danowski, Luca Cusin, Pietro Antonio Livio, Rawad Hallani, Iain McCulloch, Paolo Samori
Summary: In this study, we present the first example of an optically switchable OECT, which can undergo a reversible modulation of its ON current by up to 30% upon irradiation with UV and visible light. Through detailed investigations of the electrical and electronic characteristics of the channel material, we gained valuable insights into the electrochemical doping process occurring within the blend under light irradiation. This proof-of-concept work opens up possibilities for implementing complex neuromorphic operations and algorithms in OECTs.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Daniel Voignac, Shylee Belsey, Elisabeth Wermter, Yossi Paltiel, Oded Shoseyov
Summary: This work proposes a sustainable and green method to produce dielectric thin films made of renewable and degradable materials, achieving enhanced dielectric permittivity. The method allows for controlling the dielectric permittivity, making it suitable for energy storage devices.
Review
Chemistry, Multidisciplinary
Christina M. Tringides, David J. Mooney
Summary: Surface electrode arrays are mainly made of rigid or elastic materials and ductile metal films, offering limited stretchability. They are often repurposed for different tissues without optimizing the materials and mechanical properties for the specific application. To improve tissue interfaces and reduce damage, it is important to characterize the biological environment and design technology accordingly for each specific organ.
ADVANCED MATERIALS
(2022)
