Results 61 to 70 of about 2,497,161 (207)
Hydrodynamics of metachronal paddling: effects of varying Reynolds number and phase lag [PDF]
Royal Society Open Science, 2019 Negatively buoyant freely swimming crustaceans such as krill must generate downward momentum in order to maintain their position in the water column. These animals use a drag-based propulsion strategy, where pairs of closely spaced swimming limbs are ...
Mitchell P. Ford +3 more
doaj +1 more source
Rheological fluid motion in tube by metachronal waves of cilia [PDF]
Applied Mathematics and Mechanics, 2017 This paper presents a theoretical study of a non-linear rheological fluid transport in an axisymmetric tube by cilia. However, an attempt has been made to explain the role of cilia motion on the transport of fluid through the ductus efferentes of the male reproductive tract.
S. Maiti, S. Maiti, Sanjay Kumar Pandey
openaire +3 more sources
Advanced Engineering Materials, Volume 25, Issue 22, November 2023., 2023 A novel multifunctional magnetically actuated micro‐lamellar mechatronic platform for efficient transportation of droplets and small solid objects is reported. The propulsion is realized using a four‐pole rotating magnet, resulting in two modes of object transportation: “pushing” mode for precise positioning and “bouncing” mode for heavier solid ...
Gaia Kravanja +6 more
wiley +1 more source
Metachronal waves in magnetic micro-robotic paddles for artificial cilia [PDF]
Communications Materials, 2021 AbstractBiological cilia generate fluid movement within viscosity-dominated environments using beating motions that break time-reversal symmetry. This creates a metachronal wave, which enhances flow efficiency. Artificially mimicking this behaviour could improve microfluidic point-of-care devices, since viscosity-dominated fluid dynamics impede fluid ...
Andrew D. Gilbert +5 more
openaire +3 more sources
A Synthetic Minimal Beating Axoneme
Small, Volume 18, Issue 32, August 11, 2022., 2022 Cilia and flagella are cellular appendages that beat rhythmically to transport fluids and propel living organisms. The authors report the reconstitution of a synthetic cilium from the bottom up using biological building blocks, namely microtubules and axonemal dynein.
Isabella Guido +7 more
wiley +1 more source
Recent Progress in Active Mechanical Metamaterials and Construction Principles
Advanced Science, Volume 9, Issue 1, January 5, 2022., 2022 Active mechanical metamaterials (AMMs) are newly emerged metamaterials in recent decades. Due to the elaborately designed internal micro‐structures and stimuli‐responsive characteristics, AMMs have both the advantages of unusual mechanical properties of mechanical metamaterials and the smart actuation functions of active materials.
Jixiang Qi +10 more
wiley +1 more source
Amphibious Transport of Fluids and Solids by Soft Magnetic Carpets
Advanced Science, Volume 8, Issue 21, November 3, 2021., 2021 Artificial magnetic cilia on a soft carpet can be made via a self‐assembly route based on the Rosensweig instability. Soft carpets can transport both liquids and solid objects that are larger and heavier than the artificial cilia, using a crowd‐surfing effect.This amphibious transportation is locally and reconfigurably tunable by simple micromagnets or
Ahmet F. Demirörs +10 more
wiley +1 more source
Bioinspired Mechanisms and Actuation of Soft Robotic Crawlers. [PDF]
Adv Sci (Weinh)Researchers have been developing soft materials and robotic crawlers inspired by soft‐bodied animals to mimic effective crawling in complex environments. This review explores the state‐of‐the‐art in soft crawlers, highlighting the interaction between materials, crawling mechanisms, actuation, and applications. The review concludes by providing insights
Pan M +6 more
europepmc +2 more sources
Tailoring Flexible Arrays for Artificial Cilia Actuators
Advanced Intelligent Systems, Volume 3, Issue 10, October 2021., 2021 Inspired by structures, rhythms, and functions of natural cilia, artificial cilia actuators that can respond to stimuli such as light, electric, magnetism, etc. are developed to facilitate particle/fluid manipulation, sensing, robot design, and many other fields.
Xiaoxuan Zhang +4 more
wiley +1 more source
Bending and low‐frequency vortex shedding of flexible cylinders in laminar shear flow
AIChE Journal, Volume 67, Issue 9, September 2021., 2021 Abstract Simulations of the interaction between flexible cylinders attached to a solid surface and a laminar shear flow have been performed. The flow simulations fully resolve the geometrical details and are based on the lattice‐Boltzmann method. An immersed boundary method is used to impose the no‐slip conditions at the cylinder surfaces and to ...
Jos J. Derksen
wiley +1 more source