36 citations · 36 across the 10 of their papers we have counts for
10 papers
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…
The Architecture of Sponge Choanocyte Chambers Maximizes Mechanical Pumping Efficiency
Takumi Ogawa, Shuji Koyama, Toshihiro Omori +4
Sponges, the basalmost members of the animal kingdom, exhibit a range of complex architectures in which microfluidic channels connect multitudes of spherical chambers lined with ch…
Biophysical Fluid Dynamics in a Petri Dish
George T. Fortune, Eric Lauga, Raymond E. Goldstein
The humble Petri dish is perhaps the simplest setting in which to examine the locomotion of swimming organisms, particularly those whose body size is tens of microns to millimetres…
Anti-Diffusion in an Algae-Bacteria Microcosm: Photosynthesis, Chemotaxis, and Expulsion
Praneet Prakash, Yasa Baig, Francois J. Peaudecerf +1
In Nature there are significant relationships known between microorganisms from two kingdoms of life, as in the supply of vitamin B by bacteria to algae. Such interactions m…
Stochastic Voronoi Tessellations as Models for Cellular Neighborhoods in Simple Multicellular Organisms
Anand Srinivasan, Steph S. M. H. Hohn, Raymond E. Goldstein
Recent work on distinct multicellular organisms has revealed a hitherto unknown type of biological noise; rather than a regular arrangement, cellular neighborhood volumes, obtained…