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Shining light on a carbon nitride thin film generates net charge. By adsorbing ionic surfactants, directs chemical gradients - measured with droplet manipulation. Now in @J_A_C_S: pubs.acs.org/doi/full/10.102… with @LukasZeininger , @PaoloGiusto, @MpiciPotsdam [1/3]
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Shining light on a carbon nitride thin film generates net charge. By adsorbing ionic surfactants, directs chemical gradients - measured with droplet manipulation. Now in @J_A_C_S: pubs.acs.org/doi/full/10.102… with @LukasZeininger , @PaoloGiusto, @MpiciPotsdam [1/3]
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By shining a spot of ultraviolet light on the carbon nitride, we can direct adsorption of ionic surfactants. The generated chemical gradient is sufficient to generate Marangoni flows, and move the droplets. Have a look: pubs.acs.org/doi/full/10.102… [3/3]
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Bradley retweeted
13 Nov 2023
In situ visualization of bacterial #exoenzyme activity using biphasic Janus emulsion droplets for rapid and cost-effective detection of bacterial pathogens!
doi.org/10.1021/acssensors.3…
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11:35 - have an idea,
11:37 - open "tailored double emulsions made simple"
11:41 - find supporting information
11:42 - make solutions
11:49 - first try, perfect double emulsions
a bit of soft matter magic, thanks @_Wang_JW_ @VogelLab
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A droplet can direct light sideways, and we made a spinning microscope to observe it. A nice collaboration with Sara Nagelberg and Mathias Kolle at @MITMechE, @baryzewska, Pablo Simon-Marques, and @LukasZeininger @MpiciPotsdam. This paper is fun (for me), robust, and simple: 1/4
2 Aug 2023
Excited to see our most recent research published.
We studied how fluorescent Janus colloids can manipulate the pathway of light, laying some groundwork for their future applications in sensors, data storage, and smart displays.
onlinelibrary.wiley.com/doi/…
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We also show a synthesis-free approach to capture as much light as we can at the optical interface. By adding an extra dye we improve the signal-to-noise ratio using an emission cascade. The shape of the droplet then directs this totally internally reflected light. 3/4
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Bradley retweeted
28 Feb 2023
Another BIG moment for our group. Bradley Frank defended his thesis today! @brdfrnk pushed the boundaries in the visualization and characterization of active colloids. We're incredibly proud and excited to see what he accomplishes next. Congrats to an outstanding PhD thesis!👏
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Visualising Bubbles (1500–1906)
publicdomainreview.org/colle…
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Bradley retweeted
📢Job offer: We are looking for a highly motivated #PhDstudent in the field of active and responsive #softmaterials. You hold a degree in #Chemistry, Chemical Engineering or #PolymerScience? 📅Apply until July 5th!🔗bit.ly/3QmGBaU 👈👈 @academics_com @OpenAcademics
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Bradley retweeted
10 May 2022
Frank et al. realize a chemotactic locomotion of emulsion droplets, composed of two phase-separated fluids, that can be reversibly directed up or down a chemical concentration gradient #GettingApplied nature.com/articles/s41467-0…
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Bradley retweeted
11 Apr 2022
@VogelLab @Goerlitzer_etal @RichteringL @Akrym12 @SanterLab @GroeschelLab @hellweg_group @MpiciPotsdam @JudithEHouston1 @SFB
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Bradley retweeted
20 Oct 2021
More efficient harvesting and utilization of solar light in droplet micro photoreactors. Collaborative work of Pablo Simón Marqués, @brdfrnk, @AleksandrSavat3 and Lukas Zeininger. @MpiciPotsdam. Funded by @VolkswagenSt.
onlinelibrary.wiley.com/doi/…
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Bradley retweeted
More women in science, please! We celebrate #WomenInScienceDay and spotlight our female researchers by sharing their stories with you. Agata Baryzewska, chemist and PhD @MpiciPotsdam talks about her role model. #WomenInScience #WomenInScienceDay2021
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