Results 41 to 50 of about 1,051,604 (281)

Sensing their plasma membrane curvature allows migrating cells to circumvent obstacles

Nature Communications, 2023
To navigate through diverse tissues, migrating cells must balance persistent self-propelled motion with adaptive behaviors to circumvent obstacles. We identify a curvature-sensing mechanism underlying obstacle evasion in immune-like cells.
Ewa Sitarska, Silvia Dias Almeida, Marianne Sandvold Beckwith, Julian Stopp, Jakub Czuchnowski, Marc Siggel, Rita Roessner, Aline Tschanz, Christer Ejsing, Yannick Schwab, Jan Kosinski, Michael Sixt, Anna Kreshuk, Anna Erzberger, Alba Diz-Muñoz   +14 more
doaj   +1 more source

Advances in Multicore Fiber Interferometric Sensors

Sensors, 2023
In this paper, a review of multicore fiber interferometric sensors is given. Due to the specificity of fiber structure, i.e., multiple cores integrated into only one fiber cladding, multicore fiber (MCF) interferometric sensors exhibit many desirable ...
Yucheng Yao, Zhiyong Zhao, Ming Tang
doaj   +1 more source

Curvature dependence of BAR protein membrane association and dissociation kinetics

Scientific Reports, 2022
BAR (Bin/Amphiphysin/Rvs) domain containing proteins function as lipid bilayer benders and curvature sensors, and they contribute to membrane shaping involved in cell signaling and metabolism.
Rui Jin, Rui Cao, Tobias Baumgart
doaj   +1 more source

High-Sensitivity Curvature Fiber Sensor Based on Miniature Two-Path Mach–Zehnder Interferometer

Micromachines
This paper introduces a new high-sensitivity curvature fiber sensor based on a miniature two-path Mach–Zehnder interferometer (MTP-MZI). The sensor is fabricated by coupling and fusing the multimode fiber (MMF) with the single-mode fiber (SMF) using arc ...
Yue Wu, Yu Liu, Haoran Zhuang, Juan Cao, Yongjie Yang, Xiaojun Zhu, Dan Sun, Yuechun Shi, Rumao Tao   +8 more
doaj   +1 more source

Cell–Cell Adhesion and Myosin Activity Regulate Cortical Actin Assembly in Mammary Gland Epithelium on Concaved Surface

Cells, 2019
It has been demonstrated that geometry can affect cell behaviors. Though curvature-sensitive proteins at the nanoscale are studied, it is unclear how cells sense curvature at the cellular and multicellular levels.
Wei-Hung Jung, Khalid Elawad, Sung Hoon Kang, Yun Chen   +3 more
doaj   +1 more source

Curvature wavefront sensing for the large synoptic survey telescope [PDF]

Applied Optics, 2015
26 pages, 10 ...
Xin, Bo, Claver, Chuck, Liang, Ming, Chandrasekharan, Srinivasan, Angeli, George, Shipsey, Ian   +5 more
openaire   +3 more sources

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

FEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Out-of-equilibrium mechanochemistry and self-organization of fluid membranes interacting with curved proteins

New Journal of Physics, 2019
The function of biological membranes is controlled by the interaction of the fluid lipid bilayer with various proteins, some of which induce or react to curvature.
Caterina Tozzi, Nikhil Walani, Marino Arroyo   +2 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

High-Sensitivity and Anti-Interference Curvature Sensor Based on Optical Intensity Differential in Tapered Seven-Core Fiber

Sensors
This paper presents a high-sensitivity and anti-interference optical intensity differential curvature sensor based on seven-core fiber (SCF), and its performance is verified through simulation.
Jingshan Jia, Shuyang Duan, Meina Wu
doaj   +1 more source