Results 91 to 100 of about 52,619 (331)

Ciliary propulsion of objects in tubes: wall drag on swimming Tetrahymena (Ciliata) in the presence of mucin and other long-chain polymers [PDF]

, 1976
The lubrication effect of three long-chain polymers - mucin, methylcellulose and Ficoll - on ciliary propulsion in tubes is measured by plotting the relative velocities of swimming cilitates as a function of the tube bore diameter.
Winet, H.
core  

Arachidonic Acid as a Possible Negative Feedback Inhibitor of Nicotinic Acetylcholine Receptors on Neurons [PDF]

, 1995
Neuronal acetylcholine receptors, being highly permeable to calcium, are likely to regulate calcium-dependent events in neurons. Arachidonic acid is a membrane-permeant second messenger that can be released from membrane phospholipids by phospholipases ...
Berg, Darwin K., Blumenthal, Edward M, Huang, Bo, Vijayaraghavan, Sukumar   +3 more
core   +2 more sources

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

Efficiency optimization and symmetry-breaking in a model of ciliary locomotion

, 2010
A variety of swimming microorganisms, called ciliates, exploit the bending of a large number of small and densely-packed organelles, termed cilia, in order to propel themselves in a viscous fluid.
Lauga, Eric, Michelin, Sebastien
core   +3 more sources

Abnormal photoreceptor outer segment development and early retinal degeneration in kif3a mutant zebrafish [PDF]

, 2016
Photoreceptors are highly specialized sensory neurons that possess a modified primary cilium called the outer segment. Photoreceptor outer segment formation and maintenance require highly active protein transport via a process known as intraflagellar ...
Akhtar, Alfinito, Avasthi, Bachmann-Gagescu, Baker, Beech, Brockerhoff, Cao, Deacon, Eblimit, Goetz, Huang, Insinna, Insinna, Insinna, Jiang, Jimeno, Jimeno, Kodani, Krock, Lopes, Louie, Makhankov, Marszalek, Marszalek, Muresan, Muresan, Nascimento, Nonaka, Pazour, Ryan, Scholey, Shu, Stearns, Sukumaran, Traverso, Trivedi, Tsujikawa, Tuma, Westerfield, Whitehead, Wolfrum, Yamazaki, Yang, Zhao   +44 more
core   +2 more sources

Mass transport by ciliary point torques in flow

Journal of Fluid Mechanics
Cilia perform various functions, including sensing, locomotion, generation of fluid flows and mass transport, serving to underpin a vast range of biological and ecological processes. However, analysis of the mass transport typically fails to resolve the near-field dynamics around individual cilia, and therefore overlooks the intricate role of power ...
Siluvai Antony Selvan, Peter W. Duck, Draga Pihler-Puzović, Douglas R. Brumley   +3 more
openaire   +3 more sources

The Space Within: How Architected Voids Promote Tissue Formation

Advanced Materials, EarlyView.
This review explores the role of void spaces in tissue engineering scaffolds and examines four key methods for introducing porosity into hydrogels at different scales. It discusses sacrificial templating, microgels, phase separation, and 3D printing, highlighting principles, advantages, and limitations. It also addresses emerging strategies integrating
Anna Puiggalí‐Jou, Isabel B. Hui, Carla Fernandez‐Rico, Marcy Zenobi‐Wong   +3 more
wiley   +1 more source

A boundary element regularised Stokeslet method applied to cilia and flagella-driven flow [PDF]

, 2009
A boundary element implementation of the regularised Stokeslet method of Cortez is applied to cilia and flagella-driven flows in biology. Previously-published approaches implicitly combine the force discretisation and the numerical quadrature used to ...
Burgers J. M., Gray J., Sanderson M. J.
core   +1 more source

Physical Intelligence in Small‐Scale Robots and Machines

Advanced Materials, EarlyView.
“Physical intelligence” (PI) empowers biological organisms and artificial machines, especially at the small scales, to perceive, adapt, and even reshape their complex, dynamic, and unstructured operation environments. This review summarizes recent milestones and future directions of PI in small‐scale robots and machines.
Huyue Chen, Metin Sitti
wiley   +1 more source

Thermal dynamics assessment for multi-phase flow analysis with motile cilia and electric double layer effects: Application of Levenberg–Marquardt backpropagation NNs

Case Studies in Thermal Engineering
Ciliary movement holds substantial importance in the realm of biomedical research. Disorders arising from impaired ciliary motion, such as primary ciliary dyskinesia and specific respiratory ailments, underscore the critical need to investigate both the ...
Nidhal Ben Khedher, Nouman Ijaz, Sami Dhahbi, Kamal Barghout, Nidal Abu-Libdeh, Ahmad Zeeshan   +5 more
doaj   +1 more source