Enhancing durable electrical conductivity in multi‐walled carbon nanotubes‐epoxy composites via laser repetition rate nanojoining for flexible electronics DOI
Barayavuga Theogene, Cui Jianlei,

Fengqi Wei

et al.

Journal of Applied Polymer Science, Journal Year: 2024, Volume and Issue: 141(43)

Published: Aug. 21, 2024

Abstract With the development of nanotechnology, laser matter interaction has become intriguing for many applications, including manufacturing flexible electronics to improve interface behaviors. Employing high repetition rate nanojoining transfer patterning, this study ensures robust and consistent stability electrical properties MWCNTs. This procedure meticulously eliminates contaminants from between PET substrates carbon nanotube‐containing epoxy, significantly influencing degree alteration in composite material By increasing original sample irradiated by a with 80 kHz, defect concentration nanotubes decreases 0.448 × 10 6 /nm 2 0.39376 , respectively. The relationship conductivity semiconductor under irradiation is multifaceted context‐dependent. Optimizing crucial defining kind density nanotubes. found an 3.6799 −4 S/m at kHz. Laser ablation poised key recycling method plastic materials future industries. When MWCNTs are used processing new materials, not only enhances mechanical recycled plastics but also creates high‐performance composites added value. Additionally, quick nature process helps minimize toxicity reducing exposure time need harmful chemicals. These exhibit superior suitable advanced applications such as electronics, sensors, nanocomposite contributing both sustainability economic value various industrial sectors.

Language: Английский

Comparative Analysis of 3D Printed and Cast Conductive Rubber for Enhanced Tactile Sensing Applications DOI

Jirapat Puangkunya,

Sasitorn Srisawadi, Teeranoot Chanthasopeephan

et al.

Sensors and Actuators A Physical, Journal Year: 2025, Volume and Issue: unknown, P. 116585 - 116585

Published: April 1, 2025

Language: Английский

Citations

0
Effect of Sonication Batch on Electrical Properties of Graphitic-Based PVDF-HFP Strain Sensors for Use in Health Monitoring DOI Creative Commons
V. Díaz‐Mena, Xoan F. Sánchez–Romate, M. Sánchez

et al.

Sensors, Journal Year: 2024, Volume and Issue: 24(6), P. 2007 - 2007

Published: March 21, 2024

In this study, flexible nanocomposites made from PVDF-HFP reinforced with carbon nanotubes (CNTs) and graphene nanoplatelets (GNPs) are manufactured using a sonication solvent casting method for monitoring purposes. More specifically, the effect of volume batch under process is explored. For CNT-based composites, electrical conductivity decreases as increases due to less effective dispersion CNTs during 30-min sonication. The maximum achieved in type sensor 1.44 ± 0.17 S/m. GNP-based nanocomposites, lower is, more breakage induced by sonication, response decreases. This also validated AC analysis, where characteristic frequencies extracted. Here, measured 8.66 1.76 electromechanical results show dependency on volume. higher gauge factor corresponds size, may be because it leads dispersed pathway formed aggregates connected tunneling mechanisms. contrast, GF depends lateral size GNPs. biggest all sensors PVDF-HFP/GNP sensors, having value 69.36 × 104 at 35% strain, while highest PVDF-HFP/CNT 79.70 103 70%. addition, cycling tests robust two different strain percentages each nanocomposite. sensitivity selected joint movements proof applicability manufactured.

Language: Английский

Citations

3
Novel Smart Wearable Sensors Based on PVDF Reinforced With CNTs for Human Motion Monitoring DOI Creative Commons
V. Díaz‐Mena,

Xoan Xosé F. Sánchez Romate,

David Martínez Díaz

et al.

IEEE Sensors Journal, Journal Year: 2024, Volume and Issue: 24(10), P. 16902 - 16911

Published: April 2, 2024

Wearable strain sensors based on Poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) reinforced with carbon nanotubes (CNTs) dispersed Triton surfactant by solvent casting are proposed. The analysis of the electrical response shows that conductivity increases CNT content, as expected, whereas addition a high content is more efficient at low contents it forms network. An AC Electrochemical Impedance Spectroscopy was carried out, where variation in R int /R xmlns:xlink="http://www.w3.org/1999/xlink">tunnel ratio and analyzed. This when pathway saturated transport occurs mainly through aggregates, or tunneling mechanism starts to take relevance. Electromechanical under tensile loading sensitivity decreasing reaching gauge factor (GF) values around 10 4 80-90 % level, higher than most research found literature. Furthermore, cycling similar peak base between consecutive cycles medium-term response, highlighting robustness sensors. Finally, subjected proof-of-concept test for finger elbow movement monitoring, good agreement mechanical observed, demonstrating applicability proposed materials monitoring medium large human movements.

Language: Английский

Citations

3
Wireless breathable face mask sensor for spatiotemporal 2D respiration profiling and respiratory diagnosis DOI
Jae Hyun Kim, Heesung Roh, Sungmin Moon

et al.

Biomaterials, Journal Year: 2024, Volume and Issue: 309, P. 122579 - 122579

Published: April 22, 2024

Language: Английский

Citations

3
Electrically conductive polyaniline: Graphite composite on porous polyurethane sponge with enhanced sensitivity of humidity DOI

Dipankar Das,

Jayanta Das, D.K. Das-Gupta

et al.

Journal of Applied Polymer Science, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 23, 2024

Abstract Recent advancements in organic materials based sensor technology created a prospective field designing sensors that are both cost‐effective and environment friendly. In view of an electronic material system has been prepared depositing uniform layer graphite‐infused Polyaniline (PANI) onto the sponge framework using straightforward physical vapor deposition technique. The active were studied for composition, morphology, optical properties, charge transport characteristics. current context rapidly growing technology, this works describes innovative approach improving response PANI/Gr composites, integrated into porous PU substrates. Incorporation graphite PANI improved electrical conductivity composite structure increased interaction surface area. performance humidity detection was evaluated by studying their resistive under varying levels, which measured through current‐voltage (I‐V) higher sites reported sensing leads to inspiring sensitivity 0.522–26.22 kΩ/% RH with reasonable recovery time 572 416 sec respectively. Additionally, consisting degradable will offer useful way reducing garbage.

Language: Английский

Citations

2
User Experience of Wearable Technologies: A Comparative Analysis of Textile-Based and Accessory-Based Wearable Products DOI Creative Commons
Ahmet Baskan, Gözde Göncü-Berk

Applied Sciences, Journal Year: 2022, Volume and Issue: 12(21), P. 11154 - 11154

Published: Nov. 3, 2022

Wearable technology components have been integrated into accessories and then clothes over the evolutionary process. In future, it is predicted that wearable technologies will be patchable implantable. Despite progress in technologies, there an adaptation problem technologies. One of most important reasons for this negative product experiences users. study, we investigated user accessory-based textile-based Due to temporality experience, a mixed method was developed, including survey expectations before use, diary-interview during semi-structured interview after use. The data obtained with these methods were analyzed SPSS NVivo programs two different wearing-style compared. As result analyses, has revealed give more positive experience use may preferred terms wearability.

Language: Английский

Citations

11
Emerging technologies in wearable sensors DOI Creative Commons
Francesco Greco, Amay J. Bandodkar, Arianna Menciassi

et al.

APL Bioengineering, Journal Year: 2023, Volume and Issue: 7(2)

Published: May 31, 2023

This Editorial highlights some current challenges and emerging solutions in wearable sensors, a maturing field where interdisciplinary crosstalk is of paramount importance. Currently, investigation efforts are aimed at expanding the application scenarios translating early developments from basic research to widespread adoption personal health monitoring for diagnostic therapeutic purposes. translation requires addressing several old new that summarized this editorial. The special issue "Emerging technologies sensors" includes four selected contributions leading researchers, exploring topic different perspectives. aim provide APL Bioengineering readers with solid timely overall vision recent examples avenues.

Language: Английский

Citations

6
Tuning the Piezoresistive Behavior of Graphene-Polybenzoxazine Nanocomposites: Toward High-Performance Materials for Pressure Sensing Applications DOI
Stefania Vitale, Hugo Puozzo, Shamil Saiev

et al.

Chemistry of Materials, Journal Year: 2023, Volume and Issue: 35(17), P. 6909 - 6919

Published: Aug. 17, 2023

Flexible piezoresistive pressure sensors are key components in wearable technologies for health monitoring, digital healthcare, human–machine interfaces, and robotics. Among active materials sensing, graphene-based extremely promising because of their outstanding physical characteristics. Currently, a challenge sensing is the sensitivity enhancement through fine tuning material's electro-mechanical properties. Here, we describe novel versatile approach to modulating by combining chemically reduced graphene oxide (rGO) with thermally responsive material, namely, trifunctional polybenzoxazine thermoset precursor based on tris(3-aminopropyl)amine phenol reagents (PtPA). The integration rGO thermoresist matrix results an electrically conductive nanocomposite where triggered resist's polymerization modulates material rigidity consequently response pressure. Pressure comprising rGO-PtPA blend exhibit sensitivities ranging from 10–2 1 kPa–1, which can be modulated controlling rGO:PtPA ratio or curing temperature. Our represents proof-of-concept on-demand behavior. Combined solution processability thermal process compatible large-area coatings flexible supports, this method holds great potential applications monitoring.

Language: Английский

Citations

4
Fundamentals and current status of polymeric piezoresistive cantilever technology applied on biosensors DOI
Mariana Amorim Fraga, William Chiappim, Rodrigo Sávio Pessoa

et al.

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 259 - 288

Published: Jan. 1, 2024

Language: Английский

Citations

1
Flexible Bending Sensors Fabricated with Interdigitated Electrode Structures Cross-Linked by Transition Metal Doped ZnO Nanorods DOI Creative Commons
Waqar Muhammad, Sam-Dong Kim

Chemosensors, Journal Year: 2023, Volume and Issue: 11(10), P. 529 - 529

Published: Oct. 8, 2023

Bending strain sensors based on one-dimensional ZnO nanorod (NR) arrays cross-linked with interdigitated electrodes were fabricated polyethylene terephthalate (PET) substrates. NRs grown using the hydrothermal method through dopings different transition metals, such as Co, Ni, or Co-plus-Ni, PET substrates, and their microstructural morphology crystalline properties examined by a variety of surface analysis methods. Ultraviolet photoresponse normalized resistance change measured according to bending strains concave convex directions, highest gauge factors 175 83 achieved in respectively, at 1.75%, when Co-plus-Ni was doped NRs.

Language: Английский

Citations

3