Fabrication of CuO-NP-Doped PVDF Composites Based Electrospun Triboelectric Nanogenerators for Wearable and Biomedical Applications

Polymers, Journal Year: 2023, Volume and Issue: 15(11), P. 2442 - 2442

Published: May 25, 2023

A flexible and portable triboelectric nanogenerator (TENG) based on electrospun polyvinylidene fluoride (PVDF) doped with copper oxide (CuO) nanoparticles (NPs, 2, 4, 6, 8, 10 wt.-% w.r.t. PVDF content) was fabricated. The structural crystalline properties of the as-prepared PVDF-CuO composite membranes were characterized using SEM, FTIR, XRD. To fabricate TENG device, considered a tribo-negative film polyurethane (PU) counter-positive film. output voltage analyzed custom-made dynamic pressure setup, under constant load 1.0 kgf Hz frequency. neat PVDF/PU showed only 1.7 V, which further increased up to 7.5 V when increasing CuO contents from 2 8 wt.-%. decrease in 3.9 observed for CuO. Based above results, measurements carried out optimal sample (8 CuO). Its performance evaluated as function varying (1 3 kgf) frequency (0.1 Hz) conditions. Finally, optimized device demonstrated real-time wearable sensor applications, such human motion health-monitoring applications (respiration heart rate).

Language: Английский

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Advances in Triboelectric Nanogenerators for Sustainable and Renewable Energy: Working Mechanism, Tribo-Surface Structure, Energy Storage-Collection System, and Applications

Processes, Journal Year: 2023, Volume and Issue: 11(9), P. 2796 - 2796

Published: Sept. 20, 2023

Triboelectric nanogenerators (TENGs) are emerging as a form of sustainable and renewable technology for harvesting wasted mechanical energy in nature, such motion, waves, wind, vibrations. TENG devices generate electricity through the cyclic working principle contact separation tribo-material couples. This is used outstanding applications generation, human care, medicinal, biomedical, industrial applications. can be applied many practical applications, portable power, self-powered sensors, electronics, electric consumption devices. With technologies, significant issues reduced or even solved near future, reducing gas emissions, increasing environmental protection, improving health. The performance TENGs enhanced by utilizing materials with contrast their triboelectrical characteristics implementing advanced structural designs. review comprehensively examines recent advancements technologies harnessing waste sources, primary focus on sustainability attributes. It also delves into topics optimizing tribo-surface structures to enhance output performance, storage systems ensure stable operation prolonged usage, exploring collection efficient management harvested energy, highlighting various contexts. results indicate that have potential widely industry, care future.

Language: Английский

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Polyvinyl alcohol-based economical triboelectric nanogenerator for self-powered energy harvesting applications

Nanotechnology, Journal Year: 2023, Volume and Issue: 35(3), P. 035403 - 035403

Published: Oct. 19, 2023

Triboelectric nanogenerators (TENGs) have emerged as a promising alternative for powering small-scale electronics without relying on traditional power sources, and play an important role in the development of internet things (IoTs). Herein, low-cost, flexible polyvinyl alcohol (PVA)-based TENG (PVA-TENG) is reported to harvest low-frequency mechanical vibrations convert them into electricity. PVA thin film prepared by simple solution casting technique utilized serve tribopositive material, polypropylene tribonegative, aluminum foil electrodes device. The dielectric-dielectric model implemented with arch structure effective working PVA-TENG. device showed electrical output generating significant open-circuit voltage, short-circuit current, . Also, PVA-TENG subjected stability test operating continuously 5000 cycles. result shows that, mechanically durable electrically stable. Further, as-fabricated demonstrated show feasible applications, such charging two commercial capacitors capacitances 1.1 4.7μF green light-emitting diodes. stored energy capacitor digital watch humidity temperature sensor aid external battery. Thus, facilitates ease fabrication, robustness, cost-effective strategy field harvesting lower-grid demonstrating their potential sustainable source.

Language: Английский

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Biophysical Sensors Based on Triboelectric Nanogenerators

Biosensors, Journal Year: 2023, Volume and Issue: 13(4), P. 423 - 423

Published: March 27, 2023

Triboelectric nanogenerators (TENGs) can not only collect mechanical energy around or inside the human body and convert it into electricity but also help monitor our world by providing interpretable electrical signals during conversion, thus emerging as an innovative medical solution for both daily health monitoring clinical treatment bringing great convenience. This review tries to introduce latest technological progress of TENGs applications in biophysical sensors, where a TENG functions either sensor power source, some cases, parts self-powered system. From this perspective, begins from fundamental working principles then concisely illustrates recent given structural design, surface modification, materials selection toward output enhancement application flexibility. After this, respiratory status, cardiovascular disease, rehabilitation are covered detail, form textile implantable pacemakers, nerve stimulators, prostheses. In addition, driving third-party systems is introduced. Finally, shortcomings challenges TENG-based sensors highlighted, aiming provide deeper insight solutions development electronics with higher performance practical applications.

Language: Английский

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Smart Triboelectric Nanogenerators Based on Stimulus-Response Materials: From Intelligent Applications to Self-Powered Systems

Nanomaterials, Journal Year: 2023, Volume and Issue: 13(8), P. 1316 - 1316

Published: April 8, 2023

Smart responsive materials can react to external stimuli via a reversible mechanism and be directly combined with triboelectric nanogenerator (TENG) deliver various intelligent applications, such as sensors, actuators, robots, artificial muscles, controlled drug delivery. Not only that, mechanical energy in the response of innovative scavenged transformed into decipherable electrical signals. Because high dependence amplitude frequency on environmental stimuli, self-powered systems may thus built present an immediate stress, current, temperature, magnetic field, or even chemical compounds. This review summarizes recent research progress smart TENGs based stimulus-response materials. After briefly introducing working principle TENG, we discuss implementation classification several sub-groups: shape-memory alloy, piezoelectric materials, magneto-rheological, electro-rheological While focus their design strategy function collaboration, applications clinical treatment, sensors are described detail show versatility promising future TNEGs. In end, challenges outlooks this field highlighted, aim promote integration varied advanced technologies compact, diverse functional packages mode.

Language: Английский

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Natural Polysaccharide Film-Based Triboelectric Sensor for Fruit Transportation Collision Monitoring

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(10), P. 12417 - 12427

Published: March 1, 2024

Transportation-induced damage to fresh produce is a big challenge in logistics. Current acceleration and pressure sensors for collision monitoring face issues of power dependency, high cost, environmental concerns. Here, self-powered environmentally friendly triboelectric sensor has been developed monitor fruit collisions transportation packaging. Microcrystalline cellulose/chitosan sodium alginate films were prepared as positive negative tribo-layers assemble natural polysaccharide film-based nanogenerator (NP-TENG). The NP-TENG's electrical output was proportional the structure parameters (contact surface roughness separation gap tribo-layers) vibration factors (force frequency) exhibited excellent stability durability (over 100,000 cycles under 13 N at 10 Hz). mechanical-to-electrical conversion efficiency (instantaneous areal density 9.6 mW/m2) force sensitivity (2.2 V/N) enabled NP-TENG be potential packaging during Transportation simulation measurements kiwifruits verified that sensor's outputs increased with frequency stacking layer while varying different locations. This study suggests can effectively transportation, providing new insights into developing intelligent food systems reduce postharvest supply chain losses.

Language: Английский

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Eco-friendly, compact, and cost-efficient triboelectric nanogenerator for renewable energy harvesting and smart motion sensing

Heliyon, Journal Year: 2024, Volume and Issue: 10(7), P. e28482 - e28482

Published: March 25, 2024

In recent years, the growth of Internet Things devices has increased use sustainable energy sources. An alternative technology is offered by triboelectric nanogenerators (TENGs) that can harvest green and convert it into electrical energy. Herein, we assessed three different nopal powder types were used as layers eco-friendly TENGs for renewable harvesting from environmental vibrations powering electronic devices. These fabricated using waste recycled materials with a compact design easy transportation collocation on non-homogeneous surfaces vibration or motion addition, these have advantages such high output performance, stable voltage, lightweight, low-cost materials, simple fabrication process. contact-separation mode between two to TENG best performance based dehydrated powder, generating an power density 2.145 mWm

Language: Английский

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Biowaste‐Derived Triboelectric Nanogenerators for Emerging Bioelectronics

Advanced Science, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 9, 2024

Abstract Triboelectric nanogenerators (TENGs) combine contact electrification and electrostatic induction effects to convert waste mechanical energy into electrical energy. As conventional devices contribute electronic waste, TENGs based on ecofriendly biocompatible materials have been developed for various applications. Owing the abundance, accessibility, low cost, biodegradability of biowaste (BW), recycling these has gained considerable attention as a green approach fabricating TENGs. This review provides detailed overview BW materials, processing techniques BW‐based (BW‐TENGs), potential applications BW‐TENGs in emerging bioelectronics. In particular, recent progress material design, fabrication methods, biomechanical environmental energy‐harvesting performance is discussed. aimed at promoting continued development their adoption sustainable field

Language: Английский

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Degradable and Recyclable Hydrogels for Sustainable Bioelectronics

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(26), P. 32887 - 32905

Published: June 21, 2024

Hydrogel bioelectronics has been widely used in wearable sensors, electronic skin, human-machine interfaces, and implantable tissue-electrode providing great convenience for human health, safety, education. The generation of waste from bioelectronic devices jeopardizes health the natural environment. development degradable recyclable hydrogels is recognized as a paradigm realizing next environmentally friendly sustainable bioelectronics. This review first summarizes wide range applications bioelectronics, including devices. Then, employment synthetic polymers hydrogel discussed terms degradability recyclability. Finally, this work provides constructive thoughts perspectives on current challenges toward valuable insights guidance future evolution

Language: Английский

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Recent Progress in Wearable Triboelectric Nanogenerator for Advanced Health Monitoring and Rehabilitation

International Journal of Energy Research, Journal Year: 2024, Volume and Issue: 2024(1)

Published: Jan. 1, 2024

Triboelectric nanogenerators (TENGs) have become a vital technology in physical health monitoring and rehabilitation applications, enabling continuous, personalized, convenient monitoring, facilitating early detection prevention, offering valuable data‐driven insights. On‐body wearable triboelectric sensors enable real‐time tracking of parameters, promoting accurate personalized healthcare interventions. In addition to being self‐powered, these facilitate prevention by capturing warning signs potential issues, leading timely Furthermore, they play role feedback, helping assess progress during the recovery process. This continuous along with artificial intelligence, provides insights into patterns, trends, correlations, evidence‐based decision‐making. this review, we provide an overview recent TENG developments for applications. We discuss how TENGs work explore wide range self‐powered then summarize advancements material selection, unique features help design highly efficient, accurate, practical bioapplicable technology. Further, challenges prospects including miniaturization, moisture resistance, device maintenance, data reliability, high outpower requirements.

Language: Английский

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