Results 111 to 120 of about 4,814,966 (373)

Finding the ciliary beating pattern with optimal efficiency [PDF]

Proc. Natl. Acad. Sci. USA 108: 15727-15732 (2011), 2011
We introduce a measure for energetic efficiency of biological cilia acting individually or collectively and numerically determine the optimal beating patterns according to this criterion. Maximizing the efficiency of a single cilium leads to curly, often symmetric and somewhat counterintuitive patterns.
arxiv   +1 more source

A Gym for Cells—Direct Laser Writing of Magnetic Multilayered Micro Actuators for Mechanical Stimulation of Cells

Advanced Functional Materials, EarlyView.
Surface‐attached multilayer micromagnet systems are fabricated by two‐photon crosslinking. The pillar‐shaped micro actuators consist of a soft and flexible surface‐attached cell‐repellent hydrogel layer at the bottom, acting as a hinge and a cell‐adhesive hydrophobic polymer filled with magnetic nanoparticles.
Nicolas Geid, Ayman Husari, Eleonora Galli, Lukas Leffler, Pascal Tomakidi, Jürgen Rühe   +5 more
wiley   +1 more source

Point torque representations of ciliary flows [PDF]

arXiv, 2023
Ciliary flows are generated by a vast array of eukaryotic organisms, from unicellular algae to mammals, and occur in a range of different geometrical configurations. We employ a point torque -- or `rotlet' -- model to capture the time-averaged ciliary flow above a planar rigid wall. We demonstrate the advantages (i.e.
arxiv  

Engineering Assembloids to Mimic Graft‐Host Skeletal Muscle Interaction

Advanced Healthcare Materials, EarlyView.
This study develops a graft‐host skeletal muscle assembloid model combining neuromuscular organoids with tissue‐engineered constructs. Pre‐seeding decellularized muscles with myogenic cells enhances cell migration and axon invasion from the organoid. The model exhibits regenerative capacity following acute damage, advancing the understanding of human ...
Lucia Rossi, Beatrice Auletta, Luigi Sartore, Marco La Placa, Giada Cecconi, Pietro Chiolerio, Edoardo Maghin, Silvia Angiolillo, Eugenia Carraro, Onelia Gagliano, Cecilia Laterza, Nicola Elvassore, Martina Piccoli, Anna Urciuolo   +13 more
wiley   +1 more source

Volume‐rendered optical coherence tomography angiography during ocular interventions: Advocating for noninvasive intraoperative retinal perfusion monitoring

Journal of Biophotonics, Volume 15, Issue 12, December 2022., 2022
In ophthalmic surgery, intraoperative retinal perfusion assessment/monitoring has been suggested for numerous indications, typically using fluorescence angiography. However, applicability is limited given the difficult arrangement, associated risks and the lack of automated/objective perfusion quantification.
Tim J. Enz, Peter M. Maloca, Markus Tschopp, Marcel N. Menke, James R. Tribble, Pete A. Williams, Nadja Inglin, Ulrike Steitz, Hendrik P. N. Scholl, Anthia Papazoglou   +9 more
wiley   +1 more source

Evaluating efficiency and robustness in cilia design [PDF]

Phys. Rev. E 93, 033119 (2016), 2015
Motile cilia are used by many eukaryotic cells to transport flow. Cilia-driven flows are important to many physiological functions, yet a deep understanding of the interplay between the mechanical structure of cilia and their physiological functions in healthy and diseased conditions remains elusive.
arxiv   +1 more source

A role for Tctex-1 (DYNLT1) in controlling primary cilium length [PDF]

, 2011
The microtubule motor complex cytoplasmic dynein is known to be involved in multiple processes including endomembrane organization and trafficking, mitosis, and microtubule organization.
MacCarthy-Morrogh, LJ, Miss Nicola, Smyllie, Palmer, KJ, Stephens, DJ   +3 more
core   +1 more source

Systematic Comparison of Commercial Uranyl‐Alternative Stains for Negative‐ and Positive‐Staining Transmission Electron Microscopy of Organic Specimens

Advanced Healthcare Materials, EarlyView.
Negative‐ and positive‐staining TEM is essential for rapid nanometer‐resolution characterization of organic specimens ranging from nanoparticles to cells. Uranyl salts are widely used negative‐/positive‐stains but are radioactive and highly toxic to users and the environment.
Vera M. Kissling, Stephanie Eitner, Davide Bottone, Gea Cereghetti, Peter Wick   +4 more
wiley   +1 more source

A Proximity Mapping Journey into the Biology of the Mammalian Centrosome/Cilium Complex

Cells, 2020
The mammalian centrosome/cilium complex is composed of the centrosome, the primary cilium and the centriolar satellites, which together regulate cell polarity, signaling, proliferation and motility in cells and thereby development and homeostasis in ...
Melis Dilara Arslanhan, Dila Gulensoy, Elif Nur Firat-Karalar   +2 more
doaj   +1 more source

Ccdc11 is a novel centriolar satellite protein essential for ciliogenesis and establishment of left-right asymmetry [PDF]

, 2016
The establishment of left–right (L-R) asymmetry in vertebrates is dependent on the sensory and motile functions of cilia during embryogenesis. Mutations in CCDC11 disrupt L-R asymmetry and cause congenital heart disease in humans, yet the molecular and ...
Betleja, Ewelina, John, Emily, Mahjoub, Moe R, Mitchell, Brian J, Moresco, James J, Silva, Erica, Spear, Philip, Yates, John R, III, Zhang, Siwei   +8 more
core   +2 more sources