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mercoledì 10 aprile 2024
# gst: exploring the on-demand dynamical generation of a plethora of dispersive shock waves arising in attractive one-dimensional droplet-bearing environment.
lunedì 8 aprile 2024
# gst: apropos of evaporation, puncturing of active drops
venerdì 22 marzo 2024
# gst: rearrangements of a jammed 2-D emulsion (during slow compression).
venerdì 15 marzo 2024
# gst: multi-component droplets may exhibit self-lubricating effects
mercoledì 21 febbraio 2024
# gst: when volatile droplets dance across a surface erratically (along random trajectories)
martedì 30 gennaio 2024
# gst: analogy between quasi-2D and 3D liquid drops.
venerdì 26 gennaio 2024
# gst: compression and fracture of ordered and disordered droplet rafts
mercoledì 21 giugno 2023
# gst: nonmonotonic appearance- disappearance behaviors of two unequal-sized miscible liquid drops
mercoledì 14 giugno 2023
# gst: apropos of transitions, droplet trajectories during single and collective bursting bubbles
mercoledì 15 febbraio 2023
# gst: when a soliton juggles ('catches' and 'throws') droplets
venerdì 4 febbraio 2022
# gst: apropos of apparent erratic dynamics, the self-organization of drops bouncing on a vertically-vibrated surface
sabato 25 settembre 2021
# gst: ️apropos of spontaneous active matter, the active droploids.
mercoledì 5 maggio 2021
# gst: when and how a levitating droplet sings (as a pipe)
sabato 1 agosto 2020
# GST: how to harvest energy from impacting droplets
giovedì 31 ottobre 2019
# gst: spontaneous spin-sliding of volatile drops
martedì 22 ottobre 2019
# gst: the transition from quiescent spherical cap states to self-piloted motile states of volatile droplets
giovedì 17 ottobre 2019
# gst: fingerprints of reality (2): the stormquake
sabato 24 agosto 2019
# gst: active drops: from steady to chaotic self-propulsion
<< Individual chemically active drops suspended in a surfactant solution were observed to self-propel spontaneously with straight, helical, or chaotic trajectories. (..) strong advection (e.g., large droplet size) may destabilize a steadily self-propelling drop; once destabilized, the droplet spontaneously stops and a symmetric extensile flow emerges. If advection is strengthened even further in comparison with molecular diffusion, the droplet may perform chaotic oscillations. >>
Matvey Morozov, Sebastien Michelin. Nonlinear dynamics of a chemically-active drop: From steady to chaotic self-propulsion. J. Chem. Phys. 150, 044110 (2019). doi: 10.1063/1.5080539. Jan 31, 2019. https://aip.scitation.org/doi/10.1063/1.5080539
domenica 9 dicembre 2018
# gst: fingerprints of reality: water drops that vibrate, flames that oscillate, and viscous fluids that form rivulets ...
<< In one of this year’s three winning videos, a drop of blue-dyed water at the bottom of an anise-oil and alcohol mixture begins to grow and shake, eventually pinching off a fragment that floats up. The process repeats several times. Created by now four-time Gallery-of-Fluid-Motion winner Oscar Enríquez of Carlos III University of Madrid and his colleagues, the visuals are accompanied by a soundtrack featuring a musical improvisation by a trio consisting of Enríquez on percussion, a violinist, and a clarinetist. Each instrument in the trio represents one of the three fluids. >>
Award-Winning Fluid Videos. APS. Physics 11, 121. Nov 21, 2018.
giovedì 7 giugno 2018
# drugs: the sweet side of a snake venom (B. jararaca)
AA << report on the sweet side of snake venom toxins >>
<< most proteins in lancehead venom are modified with glycans, which can affect the proteins' folding, stability and binding >>
<< Glycans containing sialic acid may help in venom solubility and increase toxin half-life >>
<< Sialic acid on a toxic enzyme may also bind to host proteins called siglecs [sialic acid-binding Ig superfamily lectins], pulling the enzyme closer to target cells for greater effect >>
How just drops of viper venom pack a deadly punch. Am Soc for Biochem and Molec Biol. Jun 1, 2018.
https://m.phys.org/news/2018-06-viper-venom-deadly.html
Debora Andrade-Silva, David Ashline, et al. Structures of N-Glycans of Bothrops venoms revealed as molecular signatures that contribute to venom phenotype in viperid snakes. Molecular & Cellular Proteomics. doi: 10.1074/mcp.RA118.000748 mcp.RA118.000748. May 1, 2018.
http://m.mcponline.org/content/early/2018/04/30/mcp.RA118.000748