Inkjet-printed transparent electrodes for electrical brain stimulation DOI Creative Commons

Rita Matta,

Davide Reato,

Alberto Lombardini

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 10, 2024

ABSTRACT Electrical stimulation is a powerful tool for investigating and modulating brain activity, as well treating neurological disorders. However, understanding the precise effects of electrical on neural activity has been hindered by limitations in recording neuronal responses near stimulating electrode, such artifacts electrophysiology or obstruction field view imaging. In this study, we introduce novel device fabricated from conductive polymers that transparent therefore compatible with optical imaging techniques. The manufactured using combination microfabrication inkjet printing techniques flexible, allowing better adherence to brain’s natural curvature. We characterized properties electrode evaluated its performance an anesthetized mouse. Furthermore, combined experimental data finite-element model in-vivo setup estimate maximum electric highly can generate mouse brain. Our findings indicate high 300 V/m, demonstrating potential studying manipulating range relevant human applications. Overall, work presents promising approach developing versatile new tools apply study stimulation.

Language: Английский

Recent progress in thermal management for flexible/wearable devices DOI Open Access

JooHo Yun

Soft Science, Journal Year: 2023, Volume and Issue: 3(2), P. 12 - 12

Published: Jan. 1, 2023

Thermal management for wearable devices is evolving to make ubiquitous applications possible based on advanced featuring miniaturization, integration, and ultrathin designs. control integrated with are highly desirable various human body monitoring, including external heat exposure metabolic generation, in activities. Recently, dynamic change materials have been micro/nano thermal platforms address the potential active management. In this article, recent advances architecture of effective reviewed, along essential mechanisms managing conditions users external/internal environments. Appropriate approaches proposed design integration materials/structures tailored specific targets devices. particular, review devoted five strategies: conduction, radiation, evaporation/convection, absorption/release, thermoelectric (TE). Finally, challenges prospects practical discussed.

Language: Английский

Citations

53
Boosting the Performance of PEDOT:PSS Based Electronics Via Ionic Liquids DOI
Yang Li, Yuncong Pang, Liwei Wang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(13)

Published: Jan. 8, 2024

The conducting polymer poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) offers superior advantages in electronics due to its remarkable combination of high electrical conductivity, excellent biocompatibility, and mechanical flexibility, making it an ideal material among electronic skin, health monitoring, energy harvesting storage. Nevertheless, pristine PEDOT:PSS films exhibit limitations terms both low conductivity stretchability; while, conventional processing techniques cannot enhance these properties simultaneously, facing the dilemma that highly conductive interconnected domains are susceptible tensile strain. Via modifying with ionic liquids (ILs), not only a synergistic enhancement can be achieved but also requirements for printable bioelectronic satisfied. In this comprehensive review, task providing thorough examination mechanisms applications ILs as modifiers is undertaken. First, theoretical governing interactions between discussed detail. Then, enhanced elucidation underlying through incorporation reviewed. Next, specific ILs-modified relevant devices presented. Last, there concise summary discussion regarding opportunities challenges exciting field.

Language: Английский

Citations

50
Flexible resistive tactile pressure sensors DOI
Q.S. Shu,

Yuncong Pang,

Qiqi Li

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(16), P. 9296 - 9321

Published: Jan. 1, 2024

This review covers recent advancements in flexible resistive tactile pressure sensors, including operational principles, performance metrics, material choices, structural design, and applications, as well future challenges.

Language: Английский

Citations

32
All-organic transparent plant e-skin for noninvasive phenotyping DOI Creative Commons
Yanqin Yang, Tianyiyi He, Pratibha Ravindran

et al.

Science Advances, Journal Year: 2024, Volume and Issue: 10(7)

Published: Feb. 16, 2024

Real-time in situ monitoring of plant physiology is essential for establishing a phenotyping platform precision agriculture. A key enabler this device that can be noninvasively attached to plants and transduce their physiological status into digital data. Here, we report an all-organic transparent e-skin by micropatterning poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) on polydimethylsiloxane (PDMS) substrate. This optically mechanically invisible with no observable adverse effects health. We demonstrate the capabilities our e-skins as strain temperature sensors, application Brassica rapa leaves collecting corresponding parameters under normal abiotic stress conditions. Strains imposed leaf surface during growth well diurnal fluctuation were captured. further present digital-twin interface visualize real-time environment, providing intuitive vivid phenotyping.

Language: Английский

Citations

28
Recent advances in flexible solution-processed thin-film transistors for wearable electronics DOI
Ma Li Ya, Norhayati Soin, Siti Nabila Aidit

et al.

Materials Science in Semiconductor Processing, Journal Year: 2023, Volume and Issue: 165, P. 107658 - 107658

Published: June 20, 2023

Language: Английский

Citations

18
Inkjet printing quality improvement research progress: A review DOI Creative Commons

Tianle Cao,

Zijing Yang,

Hao Zhang

et al.

Heliyon, Journal Year: 2024, Volume and Issue: 10(10), P. e30163 - e30163

Published: May 1, 2024

Language: Английский

Citations

8
Fabricating durable conductive coatings from PEDOT: PSS/Ag composite and PDA by sustainable ink-jet printing on cotton fabric DOI

Ao Cui,

Jiale Yao,

Jiang Xu

et al.

Progress in Organic Coatings, Journal Year: 2024, Volume and Issue: 192, P. 108497 - 108497

Published: May 10, 2024

Language: Английский

Citations

5
Inkjet printing P(VDF-TrFE-CTFE) actuators for large bending strains DOI Creative Commons
Satheeshkumar Sekar, Andrés Hunt

Smart Materials and Structures, Journal Year: 2024, Volume and Issue: 33(2), P. 025036 - 025036

Published: Jan. 12, 2024

Abstract Additive manufacturing of sensors and actuators together with structural materials electronics will make it possible to fabricate innovative system designs that are overly laborious realise conventional methods. While printing the advancing fast, additive methods for in an earlier stage development. This research develop a process entirely inkjet printed electroactive polymer (EAP) basing on P(VDF-TrFE-CTFE) relaxor ferroelectric Ag electrodes. The consists (1) layer polyethylene terephthalate (PET) substrate bottom electrode; (2) formulating, annealing ink EAP layer; (3) sintering plasma-treated surface form top electrode. Two actuator variations, addressed as DMC KM512 , manufactured characterised by their: (a) response quasi-static excitation (1 Hz sine wave); (b) hysteresis behaviour; (c) actuation amplitude variation input voltage; (d) frequency response. 18 mm long showed 91.4 µ m ( 200 V p ) 224 275 deflections 1 sinusoidal excitation, 1.10 113 Hz, 1.72 114 resonant operation. It is 55% more strain 470% than fully inkjet-printed polyvinylidene fluoride (PVDF) -based actuators, comparable similar partially actuators. first time all three layers have been achieved.

Language: Английский

Citations

4
Sustainable Sensing with Paper Microfluidics: Applications in Health, Environment, and Food Safety DOI Creative Commons
Sanjay Kumar, Jyoti Kaushal, Heow Pueh Lee

et al.

Biosensors, Journal Year: 2024, Volume and Issue: 14(6), P. 300 - 300

Published: June 7, 2024

This manuscript offers a concise overview of paper microfluidics, emphasizing its sustainable sensing applications in healthcare, environmental monitoring, and food safety. Researchers have developed innovative platforms for detecting pathogens, pollutants, contaminants by leveraging the paper’s unique properties, such as biodegradability affordability. These portable, low-cost sensors facilitate rapid diagnostics on-site analysis, making them invaluable tools resource-limited settings. review discusses fabrication techniques, principles, showcasing potential to address pressing challenges enhance human health sustainability.

Language: Английский

Citations

4
A new approach combining CNN, RNN, and an improved Otsu threshold method for detecting hand gestures in people with thumb finger size problems and hand tremors DOI Creative Commons

Malik Kareem Kadhim,

Chen Soong Der, Chai Phing Chen

et al.

AIP Advances, Journal Year: 2025, Volume and Issue: 15(3)

Published: March 1, 2025

The recognition of hand gestures involves the application mathematical algorithms to detect human movements, with diverse applications in communication for hearing impaired, human–computer interaction, autonomous driving, and virtual environments. This research presents a comprehensive approach identifying dynamic gestures, which is particularly beneficial individuals finger disabilities. In addition, those tremors may encounter challenges when using interaction devices. proposed technique enhances sensitivity these devices through an advanced Otsu segmentation method. It begins by isolating from complex backgrounds this sophisticated algorithm incorporates motion data derived RGB video sequences. are then transformed into texture contour characteristics, subsequently input hybrid architecture that combines convolutional neural network (CNN) recurrent (RNN). Our findings demonstrate method achieves superior results existing alternatives can joint interactions high sensitivity. When comparing traditional our method, indicate improvement 6.3% accuracy CNN RNN classifiers. performance novel has been evaluated compared metrics, yielding significant results.

Language: Английский

Citations

0