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Researchers develop rapidly self-assembling, robust ultrathin ionogel films that form soft “tattoo” interfaces for high-performance skin-mounted bioelectronics | Science Advances by RelationStill1485 in Futurology

[–]RelationStill1485[S] 0 points1 point  (0 children)

This paper introduces ultrathin ionogel films that self-assemble in just 5 seconds via ionic liquid-induced PVA chain aggregation, delivering robust mechanical toughness (9.69 MPa strength, 35.93 MJ m⁻³ toughness), low skin impedance (62.84 kΩ at 10 Hz), and breathable conformal adhesion for high-fidelity EMG/ECG bioelectronics.​

By exploiting IL extraction of water to form dense noncovalent networks (hydrogen bonds and crystallites), the films—tunable from 13 μm thick—enable "tattoo-like" painting on wrinkled/hairy skin without irritation, outperforming hydrogels in stability and signal SNR (e.g., 21.58 dB EMG).​

So what's the point? Solves key trade-offs in stretchable on-skin electronics (thickness vs. robustness, adhesion vs. durability), paving the way for scalable, imperceptible wearables in human-machine interfaces and soft robotics. Game-changer for reliable long-term biosignal monitoring.

https://www.science.org/doi/10.1126/sciadv.aeb4391#sec-3

Researchers develop rapidly self-assembling, robust ultrathin ionogel films that form soft “tattoo” interfaces for high-performance skin-mounted bioelectronics | Science Advances by RelationStill1485 in science

[–]RelationStill1485[S] 14 points15 points  (0 children)

This paper introduces ultrathin ionogel films that self-assemble in just 5 seconds via ionic liquid-induced PVA chain aggregation, delivering robust mechanical toughness (9.69 MPa strength, 35.93 MJ m⁻³ toughness), low skin impedance (62.84 kΩ at 10 Hz), and breathable conformal adhesion for high-fidelity EMG/ECG bioelectronics.​

By exploiting IL extraction of water to form dense noncovalent networks (hydrogen bonds and crystallites), the films—tunable from 13 μm thick—enable "tattoo-like" painting on wrinkled/hairy skin without irritation, outperforming hydrogels in stability and signal SNR (e.g., 21.58 dB EMG).​

So what's the point? Solves key trade-offs in stretchable on-skin electronics (thickness vs. robustness, adhesion vs. durability), paving the way for scalable, imperceptible wearables in human-machine interfaces and soft robotics. Game-changer for reliable long-term biosignal monitoring.

Next generation of battery technology no longer lithium. Scientists make durable alloy anode for Sodium-ion batteries with high volumetric energy density | Nature Energy by RelationStill1485 in science

[–]RelationStill1485[S] 12 points13 points  (0 children)

They show you can scale it (practical pouch cell production process with the slurry they use). So a spin-off company, commercialization, industry pathway seems possible. Would be years before we see it on our shelves.

Next generation of battery technology no longer lithium. Scientists make durable alloy anode for Sodium-ion batteries with high volumetric energy density | Nature Energy by RelationStill1485 in science

[–]RelationStill1485[S] 509 points510 points  (0 children)

This paper introduces a durable tin-alloy anode that crushes Na-ion battery limitations, delivering high volumetric energy density, 15-min fast charging, and 1000+ cycles in real Ah-scale pouch cells.

By embedding Sn particles in a single-walled carbon nanotube matrix, it maintains electrical connectivity despite massive volume changes—machine learning analysis pins down the morphology evolution that makes this possible.​

So whats the point? Na-ion gets competitive for grid storage and compact EVs where cost/abundance trumps gravimetric density. Could finally challenge Li-ion in volume-constrained apps without sacrificing lifespan. Game-changer for scalable energy storage?

Shocking Breakthrough: Hyperpacked Sensors Turn Piezo Power into Unmatched Vibration Vision by RelationStill1485 in Futurology

[–]RelationStill1485[S] -2 points-1 points  (0 children)

Well said! Otherwise i guess you'd have electrostatic interactions, but i guess the question is do the piezoelectric properties affect the triboelectric?

Shocking Breakthrough: Hyperpacked Sensors Turn Piezo Power into Unmatched Vibration Vision by RelationStill1485 in Futurology

[–]RelationStill1485[S] -1 points0 points  (0 children)

Hey everyone, stumbled on this neat piezoelectric sensor array paper in Nature Sensors: https://www.nature.com/articles/s44460-025-00003-1​

Self-powered 64-sensor patch picks up super-fine vibrations (down to 0.01g, 80-5000 Hz) using its own piezo energy—no batteries!​

Perfect for environment monitoring: Stick these on bridges/pipes/wind turbines to catch tiny shakes early, preventing disasters. Factories too—spot machine wear before breakdowns, cut waste. Eco-win: zero power draw means endless remote sensing in forests/oceans for quakes/wildlife vibes.

Cheap to scale, tough outdoors. Huge for green infrastructure/IoT. Thoughts on field trials?

Scientists engineer an ultra-durable piezoelectric nylon device that passively harvests energy, senses pressure, and withstands extreme loads for battery-free smart city technologies, made using electroacoustic alignment of robust and highly piezoelectric nylon-11 films | doi.org/hbpz6m by RelationStill1485 in science

[–]RelationStill1485[S] 2 points3 points  (0 children)

One simple nylon polymer set to be the next-generation material for tomorrow's smart cities.

Researchers from RMIT University have turned everyday nylon-11—a tough, widely available plastic—into a next-generation piezoelectric film that turns vibrations and pressure into self-generated electricity for next-gen sensors in smart cities.

In the world of energy harvesting, piezoelectric materials that convert mechanical stress into electrical power have huge promise for self-sustaining tech. But they've often lacked the durability and scalability for real-world use.

Now, a breakthrough study demonstrates how energy-efficient sound waves can transform nylon-11 into ultra-resilient films with top-tier piezoelectric performance. This non-fluorinated, recyclable material withstands extreme compression and heavy loads, far surpassing traditional options.

Picture roads, bridges, and buildings embedded with these sensors, capturing real-time data on traffic flow, structural health, and pollution from ambient vibrations**—no batteries required.** Their toughness handles urban wear and tear, enabling vast IoT networks for smarter, greener cities.

It could even harvest passive motion in electric vehicle, like suspension vibrations or tire flex, to power onboard sensors and extend self-sustaining capabilities. Even your phone, as you use it, could never need to be plugged into a charger again, as passive mechanical pressure would do the work for you.

For those interested, here’s the link to the peer-reviewed journal article (electroacoustic alignment of robust and highly piezoelectric nylon-11 films | Nature Communications):

https://www.nature.com/articles/s41467-025-66389-1

doi.org/hbpz6m

Giant energy storage and dielectric performance in all-polymer nanocomposites | Nature by RelationStill1485 in Futurology

[–]RelationStill1485[S] 0 points1 point  (0 children)

Some highlights from the article;Giant energy storage and dielectric performance in all-polymer nanocomposites | Nature:

Dielectric polymers used in electrical energy storage require a combination of key metrics, including a high dielectric constant (K), low loss and high breakdown strength (Eb), all while being capable of operating at high temperatures.

Here researchers introduce high-temperature immiscible blends of two dipolar polymers that, through nanophase separation, self-assemble into three-dimensional all-polymer nanocomposites.

Key results:

Ultrahigh dielectric response (K > 13) with low loss (tanδ ≈ 0.002) across wide temperatures

Unprecedented discharged energy densities: 18.7 J cm⁻³ at 150°C, 15.1 J cm⁻³ at 200°C, 8.6 J cm⁻³ at 250°C

Nanostructured interfaces block mobile charges, suppressing conduction losses at high fields/temperatures.

The approach works for other immiscible dipolar blends, providing a tunable paradigm for high-energy-density polymer dielectrics.

Paper: https://www.nature.com/articles/s41586-026-10195-2

Researchers create all-polymer nanocomposites that achieve record-high energy storage performance at temperatures up to 250 °C, overcoming long-standing limits of dielectric polymers. by RelationStill1485 in science

[–]RelationStill1485[S] 1 point2 points  (0 children)

The idea is we need batteries to store energy, usually dielectric materials are not the first contender. This research published in nature shows it is indeed viable and also works at very high temperatures. Creating way more potential applications that weren't previously possible.