Chethna Shenoy’s Post

Characterize your stretchable sensor Stretchable sensors are available in a number of variations and are utilized in diverse applications. Strain gauges are sensors that alter their resistance in response to mechanical strain. Capacitive sensors detect alterations in capacitance resulting from deformation. Piezoelectric sensors are devices that produce an electric charge when subjected to mechanical stress. Conductive polymer sensors are made from polymer-based materials that possess the ability to stretch without losing their electrical conductivity. Application area for stretchable sensors: Wearable Electronics: Stretchable sensors are employed in wearable devices to detect diverse physiological data, such as heart rate, muscle activity, and body motion. Healthcare monitoring devices are utilized in medical settings to monitor essential physiological indicators, detect movement, and evaluate the success of rehabilitation. Prosthetics and exoskeletons utilize sensory systems: Sports and fitness monitoring, etc.... Also, If you want to develop any of the following devices or setups for research purposes, 🌟Device to characterise the piezoelectric or triboelectric sensors and harvesters for smart and e-textiles ;) 🌟 with controllable movement, applied force and environment. https://lnkd.in/eVhxgRHq 🌟Core sheath yarn making setup... https://lnkd.in/eRwq688b 🌟For handheld electrospinning, complete electrospinning set up and fibers, electrowriting, etc... https://lnkd.in/d8bseVZE https://lnkd.in/dEDJ6eHU Solution Near-Field Direct Writing and Melt Near-Field Direct Writing  https://lnkd.in/eZzDFWjr Measuring current from a nanogenerator https://lnkd.in/eQ-G5dky Contact me for more details✨️ 😊 #StretchableSensors #WearableTech #HealthTech #SportsTech #SmartMaterials #Wearables #Healthcare #BiomedicalEngineering #SensorTechnology #FutureTechnergyHarvesting #SmartTextiles #etextile #wearable #sensors #piezoelectric #triboelectric #electrospinning #nanogenerator #nanofiber #CoreSheathYarn #wearabletechnology #conductiveyarn #YarnTechnology #Textile #WearableTech #MaterialScience

Researchers at Chalmers University of Technology in Sweden have developed a groundbreaking silk thread coated with a conductive plastic material that harnesses body heat to generate electricity. This innovative, flexible, and non-toxic material is perfect for wearable applications. By utilizing thermoelectric textiles, this technology generates electricity from temperature differences, eliminating the need for batteries. The conductive thread demonstrated impressive durability, maintaining conductivity even after multiple washes. Although currently labour-intensive, researchers are optimistic about automating production for large-scale use. This development holds immense potential for powering wearable devices and monitoring vital signs, marking a significant step forward in the field of smart textiles. #SmartTextiles #WearableTech #Thermoelectric #InnovativeMaterials #SustainableTech #ChalmersUniversity #FutureOfWearables #BodyHeatPower #TechInnovation

Nazmul Karim, Shaila Afroj, Md Rashedul Islam, and Kostya S. Novoselov, recently published a review paper titled "Smart Electronic Textile-Based Wearable Supercapacitors". The researchers investigated electronic textiles (e-textiles), which have garnered considerable attention for their potential as lightweight and comfortable wearable devices capable of interfacing with the human body. The focus of this study was on addressing a significant challenge in the commercialization of e-textiles—namely, the lack of compatible power supply units. The paper emphasizes the increasing interest in thin and flexible supercapacitors (SCs) as a promising energy storage solution for powering smart gadgets integrated into clothing. The review covers materials, fabrication methods, and characterization strategies for textile-based SCs. Additionally, the paper provides a summary of recent advancements in textile-based SCs, highlighting their electrochemical performances. https://lnkd.in/gM6_gdkZ #smarttextiles #wearableetextiles #2dmaterials #supercapacitors

Breakthrough in On-Skin Electronics: Passive-Cooling Devices That Act Like Wearable AC! 🌬️👕 Engineers at the University of Missouri have developed a groundbreaking on-skin electronic device that acts like a personal air conditioner—without using any electricity! 🔋❌ 🌡️ The device, made from multiscale porous elastomer substrates, can cool the human body by up to 11°F by reflecting sunlight and allowing body heat to dissipate. Unlike current devices, this one is breathable, waterproof, and capable of multiple health monitoring applications, including blood pressure, heart activity, and skin hydration. 🩺💧 🔬 The key innovation lies in its passive-cooling capability, achieved through the unique structure of the elastomer substrate, which has pores ranging from 0.2 to 7 µm. These pores scatter sunlight to reduce heat absorption while still allowing body heat to escape. The device's cooling effect is comparable to air conditioning but without the energy costs. 🌞🔄 💡 Researchers are now working to create a wireless version and hope to integrate this technology into smart textiles, potentially covering the entire body with cooling fabric. This could reduce electricity usage and help combat global warming. 🌍👕 Follow our page to stay updated on cutting-edge tech like this! 🌟🔬 #OnSkinElectronics #PassiveCooling #SmartTextiles #WearableTech #Innovation

𝗨𝗻𝗹𝗼𝗰𝗸𝗶𝗻𝗴 𝘁𝗵𝗲 𝗙𝘂𝘁𝘂𝗿𝗲 𝗼𝗳 𝗪𝗲𝗮𝗿𝗮𝗯𝗹𝗲 𝗘𝗻𝗲𝗿𝗴𝘆 𝗦𝘁𝗼𝗿𝗮𝗴𝗲 𝘄𝗶𝘁𝗵 𝗣𝗿𝗶𝗻𝘁𝗲𝗱 𝗠𝗶𝗰𝗿𝗼-𝗦𝘂𝗽𝗲𝗿𝗰𝗮𝗽𝗮𝗰𝗶𝘁𝗼𝗿𝘀! Excited to share our research on 𝗲𝗻𝗵𝗮𝗻𝗰𝗶𝗻𝗴 𝗰𝗼𝗻𝗱𝘂𝗰𝘁𝗶𝘃𝗶𝘁𝘆 of 𝗠𝗪𝗖𝗡𝗧 𝗶𝗻𝗸 for wearable applications! 🚀 By optimizing the synergy of polar solvent addition and temperature treatment on dielectric screening, preferential solvation, and partial segregation of PSS, we achieved a 4x boost in conductivity (5.5 × 10³ S/m) of MWCNT:PEDOT:PSS composite electrodes. This breakthrough enabled us to print flexible, all-solid-state micro-supercapacitors (MSCs) with: 🔋 𝗔𝗿𝗲𝗮𝗹 𝗰𝗮𝗽𝗮𝗰𝗶𝘁𝗮𝗻𝗰𝗲: 9.82 mF/cm² at 60 µA/cm² ⚡ 𝗔𝗿𝗲𝗮𝗹 𝗲𝗻𝗲𝗿𝗴𝘆 𝗱𝗲𝗻𝘀𝗶𝘁𝘆: 1.964 µWh/cm² at 63 µW/cm² 🔄 𝗨𝗻𝗺𝗮𝘁𝗰𝗵𝗲𝗱 𝗱𝘂𝗿𝗮𝗯𝗶𝗹𝗶𝘁𝘆: 99.7% capacitance retention after 6,000 cycles + up to 10,000 bending cycles!! The result? MSCs with exceptional performance tailored for wearables that can keep up with real-life demands. Check out our work in the 𝗖𝗵𝗲𝗺𝗶𝗰𝗮𝗹 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗝𝗼𝘂𝗿𝗻𝗮𝗹 (𝗜.𝗙. 𝟭𝟯.𝟯). 👉 https://lnkd.in/gubPAiRG #WearableTech #EnergyStorage #Supercapacitors #ResearchInnovation

Innovation fueled by the drive to redefine the future of wearables.   Nadeeshani Gunathilake, Engineering Lead at MAS Holdings, is breaking boundaries in textile innovation. With her granted patents, she has tackled one of wearable tech’s toughest challenges: the washability of electronic components.   Her work on textiles with integrated light guides and textile buttons is paving the way for advancements in flexible electronics and printed circuitry, offering transformative possibilities for how we integrate technology into our everyday lives.   #InnovationWithPurpose #WearableTech #MASHoldings #FlexibleElectronics #TextileTechnology #PatentedInnovation

#Article A Flexible Pressure Sensor Based on Silicon Nanomembrane by Xiaojian Hao, Guojun Zhang, Yuhua Yang and Renxin Wang https://lnkd.in/gTKzazwt   #MDPI #Flexible #Nanomembrane #Silicon #biosensors #sensors #openaccess   #Abstract With advances in new materials and technologies, there has been increasing research focused on flexible sensors. However, in most flexible pressure sensors made using new materials, it is challenging to achieve high detection sensitivity across a wide pressure range. Although traditional silicon-based sensors have good performance, they are not formable and, because of their rigidity and brittleness, they are not suitable for fitting with soft human skin, which limits their application in wearable devices to collect various signals. Silicon nanomembranes are ultra-thin, flexible materials with excellent piezoresistive properties, and they can be applied in various fields, such as in soft robots and flexible devices. In this study, we developed a flexible pressure sensor based on the use of silicon nanomembranes (with a thickness of only 340 nm) as piezoresistive units, which were transferred onto a flexible polydimethylsiloxane (PDMS) substrate. The flexible pressure sensor operated normally in the range of 0–200 kPa, and the sensitivity of the sensor reached 0.0185 kPa−1 in the low-pressure range of 0–5 kPa. In the high-pressure range of 5–200 kPa, the sensitivity of the sensor was maintained at 0.0023 kPa−1. The proposed sensor exhibited a fast response and excellent long-term stability and could recognize human movements, such as the bending of fingers and wrist joints, while maintaining a stable output. Thus, the developed flexible pressure sensor has promising applications in body monitoring and wearable devices.

Smarter in these threads: #NTUsg scientists have pushed the boundaries of wearable technology with their latest innovation - ultra-thin semiconductor fibres capable of transforming everyday clothing into smart wearable electronics. To demonstrate the practicality and versatility of the new semiconductor fibres, the researchers developed several prototypes, such as a smart beanie designed to aid visually impaired individuals in navigating streets safely through alerts linked to a mobile app; a shirt that acts as a personal museum audio guide that transmits information via an earpiece; and a smartwatch strap that serves as a flexible sensor to monitor heart rate during physical activity. To make these smart threads a reality, the team had to overcome many challenges, including finding ways to make semiconductor fibres that are both flexible and free from defects for stable signal transmission, leveraging advanced computer modelling and materials selection. Led by Associate Professor Lei Wei from the NTU School of Electrical & Electronic Engineering (EEE), the interdisciplinary team finally succeeded in making hair-thin, defect-free fibres up to 100 meters long, proving its scalability for future mass-market manufacturing. Crucially, these new fibres can be woven into fabrics using existing textile manufacturing methods. The findings, published in the top scientific journal Nature, are aligned with the #NTUsg2025 strategic plan which aims to foster innovation and translate research into practical solutions to tackle some of humanity's greatest challenges. https://lnkd.in/gFRH2Wp3   #NTUsgInnovation #NTUsgResearch #wearabletech #materialsscience #mechanicalengineering #electricalengineering

〰️ WEARABLE TECH continued… 〰️ Our bodies are unique and constantly changing. 3D-/4D-printing can be used to personalize orthotic devices for different shapes and sizes, as well as passively adapt to changes in our bodies. This multifunctional splint showcases surface textures from soft to hard, areas of adaptive pressure through localized shape change, and directional qualities in stiffness and flexibility. ©️ Video by Tiffany Cheng | Doctoral research work while at the Institute for Computational Design and Construction (ICD) #design #engineering #research #science #technology #materialprogramming #computationaldesign #digitalfabrication #3Dprinting #4Dprinting #mesostructures #programmable #responsive #selfshaping #adaptive #bioinspired #biobased #wearables

🚀 Revolutionizing E-Textiles with MXenes! 🌟 Excited to share a groundbreaking study from #MaterialsToday! Alex Inman, Bita Soltan Mohammadlou, Kateryna Shevchuk, James FitzPatrick, Jung Wook Park, Noah Pacik-Nelson, Iryna Roslyk, Eric Gallo, Raghav G., Flavia Vitale, Andreea Danielescu and Yury Gogotsi have developed a textile-based energy grid using #MXenes for wireless charging and energy storage. This innovation can power wearable electronics like never before! 💡 🔋 Key Highlights: - MXene Integration: Directly printed onto textiles for conductivity and energy storage. - Wireless Charging: Efficient power transfer to e-textiles. - Real-World Applications: From environmental sensing to wearable heaters. Kudos to the team for pushing the boundaries of smart textiles! 👏 #Innovation #Nanotechnology #SmartTextiles #WearableTech #Sustainability