6 papers · 1 filter
Theory of Cell Body Lensing and Phototaxis Sign Reversal in "Eyeless" Mutants of
Sumit Kumar Birwa, Ming Yang, Adriana I. Pesci +1
Phototaxis of many species of green algae relies upon directional sensitivity of their membrane-bound photoreceptors, which arises from the presence of a pigmented "eyespot" behind…
Phototactic Decision-Making by Micro-Algae
Shantanu Raikwar, Adham Al-Kassem, Nir S. Gov +3
We study how simple eukaryotic organisms make decisions in response to competing stimuli in the context of phototaxis by the unicellular alga . While neg…
Algal Optics
Ming Yang, Sumit Kumar Birwa, Raymond E. Goldstein
Nearly a decade ago it was discovered that the spherical cell body of the alga can act as a lens to concentrate incoming light onto the cell's membrane-…
Spatiotemporal distribution of the glycoprotein pherophorin II reveals stochastic geometry of the growing ECM of
Benjamin von der Heyde, Anand Srinivasan, Sumit Kumar Birwa +4
The evolution of multicellularity involved the transformation of a simple cell wall of unicellular ancestors into a complex, multifunctional extracellular matrix (ECM). A suitable…
The 2024 Motile Active Matter Roadmap
Gerhard Gompper, Howard A. Stone, Christina Kurzthaler +29
Activity and autonomous motion are fundamental aspects of many living and engineering systems. Here, the scale of biological agents covers a wide range, from nanomotors, cytoskelet…
Feeders and Expellers, Two Types of Animalcules With Outboard Cilia, Have Distinct Surface Interactions
Praneet Prakash, Marco Vona, Raymond E. Goldstein
Within biological fluid dynamics, it is conventional to distinguish between "puller" and "pusher" microswimmers on the basis of the forward or aft location of the flagella relative…