Biointegrated Photonics Lab

a twitter logo with the letter x underneath Alt: The twitter bird logo crushing on the logo of x underneath

Finally deactivated that dormant account on the #X hellscape #RIP #Twitter. Surprised and sad to see so many academics still posting there, you can do better!

My name is Jeff meme with Altmetric replaced. Channing Tatum with his clothes on.

THREAD

The first full year of tracking research on @bsky.app

Hi, we are Altmetric, and we track how research is communicated across the web.

We now have one full calendar year of Bluesky research data and thought we'd have a looksie.

A three panel figure showing microlaser characteristics during dynamic compression by an atomic force microscope. (a) Lasing spectra acquired during a push and release experiment, where the force applied by the AFM onto the microlaser is linearly increased from 0 nN to 7 nN and then released back to 0 nN. The spectra are normalized and vertically offset to show the shift and broadening of the lasing modes. (b) Fitted center position of the lasing modes labelled in (a), plotted over the time of the experiment. Two time points right after the microlaser made contact with the beaded tip of the AFM are excluded from the plot due to strong mode splitting. (c) Fitted FWHM (symbols, left axis) of the 4 laser modes shown in (b) and the measured applied force (pink solid line, right axis) as function of time. The resolution limit of the spectrometer is about 50 pm.

Very happy to finalize a few projects after a busy year, starting with a pre-print of Melisa's work on #flexible #microlasers made from #elastomers! A great material to prepare soft microlasers to measure biological #forces. #biophotonics #biosensing arxiv.org/abs/2512.22707

The rising danger of AI-generated images in nanomaterials science and what we can do about it - Nature Nanotechnology Generative AI has made it trivial to generate fake microscopy images that are indistinguishable from real images, even for experts. As researchers in nanoscience, it is time for us to face this reality and discuss strategies to conserve the integrity of our discipline.

Really important new paper on how AI can be used to fake nanoparticle images #chemsky #science #nanotech

www.nature.com/articles/s41...

Overview image, showing different microlaser platforms at the top (including disks, spheres, nanorods, and optoplasmonic lasers), the biological targets (cells, organoids, tissue, animals) in the middle, and different applications of microlasers (sensors, optical barcodes, cell tracking) at the bottom.

Is anyone still reading review papers these days? For those who do, check out our #review (open access) on #biointegrated #microlasers, now published in @optica.org. doi.org/10.1364/OPTI...

If you're an expert in organic molecules, thin film fabrication and/or optics and are looking to bring cutting-edge technology to the market - Please apply and join our team at the Humboldt Centre for Nano- and Biophotonics!

jobportal.uni-koeln.de/bewerben/2186

The real deal: our fascination with fakes – and how to sp... With talented counterfeiters at the top of their game, how on earth do you spot a fake? And does it really matter anyway?

Grateful to have been included in a Feature in ‪@theobserveruk.bsky.social‬ focussing on "fake spotters", available online today. This gives an overview of our work to tackle counterfeit spirits using laser spectroscopy, which we hope to see in use very soon!

observer.co.uk/style/featur...

"The whisky wizard"! Really nice feature, thanks for sharing. 🥂

An image of the title page of an article titled "Biologische und biomedizinische Anwendungen intrazellularer Laserpartikel".

Very happy to contribute to #BIOspektrum! My short (3 pages) take on the applications and potential of #microlasers for #biosensing and #singlecell tracking.

Open access👉 rdcu.be/elhkx (in German)

Thanks @gbmev.bsky.social, @gesvirologie.bsky.social and @riemerlab.bsky.social 😉 for the invitation!

DNA Sensing with Whispering Gallery Mode Microlasers Nucleic acid sensing is crucial for advancing diagnostics, therapeutic monitoring, and molecular biology research by enabling the precise identification of DNA and RNA interactions. Here, we present an innovative sensing platform based on DNA-functionalized whispering gallery mode (WGM) microlasers. By correlating spectral shifts in laser emission to changes in the refractive index, we demonstrate real-time detection of DNA hybridization and structural changes. The addition of gold nanoparticles to the DNA strands significantly enhances sensitivity, and exclusively labeling the sensing strand or a hairpin strand eliminates the need for secondary labeling of the target strand. We further show that ionic strength influences DNA compactness, and we introduce a hairpin-based system as a dual-purpose sensor and controlled release mechanism for drug delivery. This versatile WGM-based platform offers promise for sequence-specific nucleic acid sensing, multiplexed detection, and in vivo applications in diagnostics and cellular research.

🧬🔬New paper online: Nucleic acid sensing using DNA-functionalized whispering gallery mode microlasers! Great collaboration with @thegatherlab.bsky.social
@sorayacaixeiro
@schubertlab.bsky.social
@chemunicologne.bsky.social
🧪 #DNASensing #microlasers

pubs.acs.org/doi/full/10....

Half-wave nanolasers and intracellular plasmonic lasing particles - Nature Nanotechnology A metal–semiconductor structure as small as 170 nm in diameter emits lasing light from the lowest-order plasmonic mode across a broad spectral range in the infrared.

New paper online: Half-wave nanolasers and intracellular plasmonic lasing particles.

A metal–semiconductor as small as 170 nm in diameter emits lasing light from the lowest-order plasmonic mode across a broad spectral range in the infrared.

www.nature.com/articles/s41...

#Nanotechnology

Schlieren texture and topography induced confinement in an organic exciton-polariton laser Nature Communications - Organic exciton-polaritons represent an attractive platform for quantum devices. Here, authors show how introducing Schlieren texturing and a rough intra-cavity topography...

Schlieren textures and topography make organic polariton lasers better! To the point where lasing is achieved with simple metallic mirrors for the first time. Great work by Florian Le Roux, @andreasphysics.bsky.social and Francisco Tenopala Carmona. Check out our Nature Comms paper rdcu.be/d6GXz

Thank you!

Nice one! Maybe our @schubertlab.bsky.social, plus @thegatherlab.bsky.social and @murawskilab.bsky.social would also be a good fit?

Glad that our latest paper has generated interest and has been selected to be featured on Nature Protocol's website.

@natureportfolio.bsky.social @uarizona.bsky.social @spie.org @optica.bsky.social

JOB ALERT! 2 open PHD positions @kathlab.bsky.social in the framework of the MSCA doctoral network MeChaNiSM! Searching for organic chemists dedicated to nucleic acid chemistry.🧬⚗️🎉
More info: www.kathlab.uni-koeln.de
#organicchemistry #nucleicacids

Exceptionally well produced video about the mechanics of the developing crocodile head scales. Outstanding #microscopy data backed up by detailed simulations! Very inspiring.

#Polaritons enable high performance angle-independent optical filters. Immensely enjoyed this collaboration between
@thegatherlab.bsky.social, the Vandewal group at UHasselt and University of St Andrews
rdcu.be/d2hUo

Introduction of the 3rd cohort of the Zia Visible Women in Science fellowship, aiming to inspire and support female scientists.

My mission statement: “As a physicist, I want to develop technologies at the interface between optics, marine biology and materials science in order to understand and protect endangered ecosystems.”

Excited to be among the recipients of the 2024/25 Zia Fellowship! In today’s newspaper @zeit.de you can read more about the fellows and our science - or check out zeitfuerx.de/forschung/zia/ 👩🏼‍🔬💡

Congratulations, Vera! So well deserved!

Congratulations, Sebastian! All the best for your next adventure in (...checks google maps...) Canada!?

Beautiful work! Is this already published? I'm looking for some examples of clearing + light sheet for my upcoming lecture.

Thank you!

Good time for a re-post of Vera's @veratitze.bsky.social paper on integrating an ultrafast spectrometer (100k spectra per second!) into custom-built and commercial confocal microscopes. Plus demonstration of our intracellular #microlasers for single cell #tracking and #sensing.

I'm trying to find all the cool people sharing microscopy here. Help me 🤓🔬
go.bsky.app/Aaf8sKT

Deformable microlaser force sensing - Light: Science & Applications Characterising forces deep inside biological tissue is a challenging task. Here, we demonstrate that deformable biointegrated microlasers can sense nanoscopic forces with unprecedented spatio-temporal...

"Deformable microlaser force sensing" now published in Light: Science & Applications! We show that #droplet #microlasers can measure absolute mechanical #forces inside cells, tumour spheroids, and in vivo! www.nature.com/articles/s41...

Hello bluesky! Now posting news from our lab, cool science from all over the world, and the occasional job offer on this platform. Long may it last. #microlaser #photonics #nanooptics #sensors #science schubert-lab.uni-koeln.de