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Dr Peter Sherrell @nanoin3d.bsky.social · 2d

Yes, completely tiny and pretty useless at the moment - but cool!

We've seen in this (and other) work is you can change your surface to make orders of magnitude more electricity.

You always lose energy during conversion processes... And a droplet 💧is a tiny thing! (But there are lots at once ⛈️)

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Reposted by Dr Peter Sherrell

Dr Peter Sherrell @nanoin3d.bsky.social · 8d

How do you make #StemCells turn into what we want 🫀?

One way is with electricity⚡- but how you use the electricity really matters

In a new perspective with @drtinytaps.bsky.social in #AdvancedMaterials, we tackle these complexities:

doi.org/10.1002/adma...

#ozchem #science #chemsky 🧪 #matsky

The Bionic Interface: Considering the Material Mediated Electrical Stimulation of Stem Cells

Electrical stimulation directs stem cell fate in tissue engineering. Cellular responses are influenced by membrane properties, intrinsic cell state, material charge-transport characteristics, and the...

doi.org

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Dr Peter Sherrell @nanoin3d.bsky.social · 3d

What if Solar Panels harvested energy when rain was falling ❔

In @acs.org #Langmuir - we looked at raindrops falling and sliding. We show the ⚡ charge already on a surface before a droplet 💧 hits a surface matters... a lot⁉️

🧪 #Physics #TENG #Chemsky

@andrissutka.bsky.social

Impact of Initial Charge Conditions on the Slide Electrification of Droplets

Contact electrification and electrostatic induction are the core mechanisms behind solid–liquid (SL) triboelectric nanogenerators (TENGs), which have garnered interest for powering microscale devices....

pubs.acs.org

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Dr Peter Sherrell @nanoin3d.bsky.social · 8d

How do you make #StemCells turn into what we want 🫀?

One way is with electricity⚡- but how you use the electricity really matters

In a new perspective with @drtinytaps.bsky.social in #AdvancedMaterials, we tackle these complexities:

doi.org/10.1002/adma...

#ozchem #science #chemsky 🧪 #matsky

The Bionic Interface: Considering the Material Mediated Electrical Stimulation of Stem Cells

Electrical stimulation directs stem cell fate in tissue engineering. Cellular responses are influenced by membrane properties, intrinsic cell state, material charge-transport characteristics, and the...

doi.org

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Dr Peter Sherrell @nanoin3d.bsky.social · 15d

Have a read of the great write up by the RMIT media team.

www.rmit.edu.au/news/all-new...

🧪 #science #ozchem #3Dprinting

Diamond power could be a medical implant’s best friend

Researchers have created a 3D-printed diamond–titanium device that generates electricity from flowing liquid and receives wireless power through tissue.

www.rmit.edu.au

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Dr Peter Sherrell @nanoin3d.bsky.social · 15d

A (micro) bit of Diamond can make a lot of difference

In our study led by Arman Ahnood and Kate Fox, we show that microdiamonds 💎 transform Titanium implants into active energy harvesting materials - from fluid flow (think blood 🩸), or as an antenna 📶

doi.org/10.1002/adfm...

#ozchem 🧪 #science

Additively Manufactured Diamond for Energy Scavenging and Wireless Power Transfer in Implantable Devices

Additive manufacturing is expanding beyond mechanical prosthetics into microelectronic implants. This work presents a diamond-titanium hybrid that enables wireless power transfer, localized heating, ....

doi.org

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Dr Peter Sherrell @nanoin3d.bsky.social · 15d

Thanks for the lovely write up!

Science X / Phys.org @sciencex.bsky.social · 15d

A 3D-printed diamond–titanium device has demonstrated the ability to generate electricity from fluid flow and receive wireless power, offering potential for longer-lasting, battery-free medical implants. doi.org/g94kzn

Diamond power could be a medical implant's best friend

RMIT researchers have created an experimental 3D-printed diamond–titanium device that generates electricity from flowing liquid and receives wireless power through tissue making it possible to remotely sense changes in flow.

medicalxpress.com

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Dr Peter Sherrell @nanoin3d.bsky.social · 29d

Want to make #MOFs cheaply?

At RMIT, led by Ph.D. student Nandish H. S., we've shown how to make #UiO-66 with excellent crystallinity and high surface area.

At atmospheric pressure. 💎
In water. 💧

#Science #ozchem #chemsky 🧪

advanced.onlinelibrary.wiley.com/doi/10.1002/...

Aqueous Synthesis of UiO‐66 Metal‐Organic Frameworks With Enhanced Crystallinity and Surface Area

In this work, highly crystalline UiO-66 is synthesized in water at 65 °C, achieving a high surface area of 741 m2 g−1, by modulating the pH of the reaction, promoting optimal coordination between met....

advanced.onlinelibrary.wiley.com

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Dr Peter Sherrell @nanoin3d.bsky.social · Sep 9

We also had a lot of fun testing these at the RMIT #FLAMME Lab - showing how these work for next-generation PPE for first responders.

🧪🔬 #science #textiles #contactelectrification #chemsky

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Dr Peter Sherrell @nanoin3d.bsky.social · Sep 9

Had some fun with our paper in collaboration between RMIT and AcSIR.

doi.org/10.1002/smll...

Published in Small - we show we can make #batteryfree energy harvesting systems stable up to 200C🔥(at nowhere near the energy density of batteries 🪫- but it's interesting!)

🧪🔬 #ozchem #chemsky

Flexible High Temperature Stable Hydrogel Based Triboelectric Nanogenerator for Structural Health Monitoring and Deep Learning Augmented Human Motion Classification

A high-performance flexible and high-temperature stable hydrogel-based triboelectric nanogenerator for scavenging mechanical energy, and structural health monitoring is developed. The device demonstr...

doi.org

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Dr Peter Sherrell @nanoin3d.bsky.social · May 15

This paper is probably the last one I get into the lab and do *most* of the experimental myself. Perhaps why it started in 2021 and it took 4 years to finish. 🤦‍♂️

Thanks to the wonderful collaborators 💌vand helpers on the way!

Onwards to more motion-driven #catalysis ⚡at #RMIT!

#OzChem 🧪 #chemsky

Dr Peter Sherrell @nanoin3d.bsky.social · May 14

New paper on #Hydrogen Evolution!

Really proud of this one - dx.doi.org/10.1002/aesr...

We figured out a way to make non-stick fluoropolymers 'stick' to metals. This meant that if we use #MXenes to polarise the fluoropolymer we get excellent #piezoelectric coupling.

#chemsky 🧪 #science

Piezo‐Electro‐Catalytic Hydrogen Production via Piezoelectric Fluoropolymers

Piezo-electro-catalysis is demonstrated to double the efficiency of hydrogen production from acid by combining a self-poled fluoropolymer with a platinum mesh. The improvement is attributed to locali...

dx.doi.org

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Dr Peter Sherrell @nanoin3d.bsky.social · May 14

New paper on #Hydrogen Evolution!

Really proud of this one - dx.doi.org/10.1002/aesr...

We figured out a way to make non-stick fluoropolymers 'stick' to metals. This meant that if we use #MXenes to polarise the fluoropolymer we get excellent #piezoelectric coupling.

#chemsky 🧪 #science

Piezo‐Electro‐Catalytic Hydrogen Production via Piezoelectric Fluoropolymers

Piezo-electro-catalysis is demonstrated to double the efficiency of hydrogen production from acid by combining a self-poled fluoropolymer with a platinum mesh. The improvement is attributed to locali...

dx.doi.org

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Dr Peter Sherrell @nanoin3d.bsky.social · Mar 13

Lovely coverage of @apsphysics.bsky.social #PRL in #CosmosMagazine on a beautiful & basic phenomena

How droplets get charged when moving 💧⚡

cosmosmagazine.com/technology/m...

We've 🔃 previous studies - charging can occur from dry to wet⁉️

journals.aps.org/prl/abstract...

#physics #physsky 🧪

The water droplets on your car window are building electrical charge

The water droplets are building up an electrical charge, and physicists say it is 10 times greater than previously thought.

cosmosmagazine.com

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Reposted by Dr Peter Sherrell

Dr Peter Sherrell @nanoin3d.bsky.social · Mar 13

Lovely write up of our @apsphysics.bsky.social #PRL article on stick-slip #water #electrification
@sciencex.bsky.social

This work flips 🔃 droplet charging on its head, showing it happens dry to wet as well as wet to dry! 💧⚡

phys.org/news/2025-03...

doi.org/10.1103/Phys...

#Ozchem #Chemsky 🧪

Water movement on surfaces makes more electric charge than expected

Researchers from RMIT University and the University of Melbourne have discovered that water generates an electrical charge up to 10 times greater than previously understood when it moves across a surf...

phys.org

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Dr Peter Sherrell @nanoin3d.bsky.social · Mar 13

In terms of rain drops being repelled by static - I suspect it is related - but we haven't studied it in detail enough to make a statement either way!

a painting of rain drops falling on a tiled floor by duc-koolh

ALT: a painting of rain drops falling on a tiled floor by duc-koolh

media.tenor.com

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Dr Peter Sherrell @nanoin3d.bsky.social · Mar 13

We *think* - and the next step is demonstrating control of it - that the wobble you see when a droplet jumps releases a little bit of energy, which can interact with the surface to create (or transfer) an electric charge. 💧

I love the fact we still can't (properly) answer something so simple. ⁉️

A droplet that split from pinning events on top of a polymer for measuring droplet electrification

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Dr Peter Sherrell @nanoin3d.bsky.social · Mar 13

Lovely write up of our @apsphysics.bsky.social #PRL article on stick-slip #water #electrification
@sciencex.bsky.social

This work flips 🔃 droplet charging on its head, showing it happens dry to wet as well as wet to dry! 💧⚡

phys.org/news/2025-03...

doi.org/10.1103/Phys...

#Ozchem #Chemsky 🧪

Water movement on surfaces makes more electric charge than expected

Researchers from RMIT University and the University of Melbourne have discovered that water generates an electrical charge up to 10 times greater than previously understood when it moves across a surf...

phys.org

1 3 12

Reposted by Dr Peter Sherrell

Dr Peter Sherrell @nanoin3d.bsky.social · Mar 12

Water moving over a surface - one of the most common things we can imagine.

With @drjoeberry.bsky.social, Amanda Ellis, and Shuaijia Chen, we've shown when a droplet 'sticks' and 'jumps - it creates 10x more electric charge! ⚡

In @apsphysics.bsky.social doi.org/10.1103/Phys...

#ozchem 🧪 #chemsky

Irreversible Charging Caused by Energy Dissipation from Depinning of Droplets on Polymer Surfaces

Interfacial energy dissipation during stick-slip motion of a liquid drop on a nonconductive polymer substrate is shown to lead to an irreversible increase in electrical charge. This previously unobser...

journals.aps.org

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Dr Peter Sherrell @nanoin3d.bsky.social · Mar 12

At this stage, it's really an observation 🔬 - but the next steps in controlling when and how this occurs can have big implications for energy storage 🔋 and flammable fuel 🔥handling processes.

Looking forward to the journey!

#ozchem #chemsky 🧪

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Dr Peter Sherrell @nanoin3d.bsky.social · Mar 12

This is amazing for me - discoveries like this, "finding out how the cosmos works" is why I became a scientist. 💓

RMIT has done a wonderful write-up of why this matters, and what it means here:

www.rmit.edu.au/news/all-new...

#ozchem #ChemSky 🧪

Water movement on surfaces makes more electric charge than expected

Researchers have discovered that water generates an electrical charge up to 10 times greater than previous understood when it moves across a surface.

www.rmit.edu.au

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Dr Peter Sherrell @nanoin3d.bsky.social · Mar 12

Water moving over a surface - one of the most common things we can imagine.

With @drjoeberry.bsky.social, Amanda Ellis, and Shuaijia Chen, we've shown when a droplet 'sticks' and 'jumps - it creates 10x more electric charge! ⚡

In @apsphysics.bsky.social doi.org/10.1103/Phys...

#ozchem 🧪 #chemsky

Irreversible Charging Caused by Energy Dissipation from Depinning of Droplets on Polymer Surfaces

Interfacial energy dissipation during stick-slip motion of a liquid drop on a nonconductive polymer substrate is shown to lead to an irreversible increase in electrical charge. This previously unobser...

journals.aps.org

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Dr Peter Sherrell @nanoin3d.bsky.social · Feb 17

New research out in @acs.org Sus. Chem. & Eng.

#Bioderived #polymers (from plant extracts) are #3Dprinted and work better - than petroleum-based polymers for Mechanical-to-Electrical conversion #TENGs

From Maksims Jurinovs and @andrissutka.bsky.social

doi.org/10.1021/acss...

#ozchem #chemsky 🧪

Printing Bioderived and Biodegradable Triboelectric Nanogenerators via Dual-Head Additive Manufacturing

Society needs regenerative technology, that is, technology that replenishes the world as it functions. While energy harvesting technology, including triboelectric nanogenerators (TENGs), provide promi...

doi.org

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Dr Peter Sherrell @nanoin3d.bsky.social · Feb 6

This lets us assemble monolayers from a wide array of different bead #chemistries - letting us have a platform for the continued study of #contact #electrification mechanisms.

Some more cool energy harvesting work coming soon!

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Dr Peter Sherrell @nanoin3d.bsky.social · Feb 6

Can tiny beads create electrical #energy? ⚡

Some lovely new collaborative work with @ignaasjimidar.bsky.social and @andrissutka.bsky.social shows how polymer beads act as exceptional #triboelectric energy harvesters!

Check it out 👀

onlinelibrary.wiley.com/doi/10.1002/...

#chemsky 🧪

Granular Interfaces in TENGs: The Role of Close‐Packed Polymer Bead Monolayers for Energy Harvesters

Here, a novel granular-interfaced TENG comprising HCP ordered polymer bead monolayers is introduced that shows stable output over 10 000 cycles. The findings shows that mechanical properties and larg...

onlinelibrary.wiley.com

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Reposted by Dr Peter Sherrell

Dave Leigh @profdaveleigh.bsky.social · Jan 15

Peng-Lai, @stefanborsley.bsky.social, Martin & our collaborators Alessandro and @giusepponelab.bsky.social demonstrate how a catalyst transduces chemical energy to perform mechanical work in www.nature.com/articles/s41... in @nature.com. tinyurl.com/jny7nen5. Animation @scicommstudios.bsky.social😀

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