Results 101 to 110 of about 58,604 (301)
Viscotaxis of beating flagella
Soft MatterMany biological microorganisms and artificial microswimmers react to external environmental gradients, like viscosity. Symmetric eukaryotic flagella swim up-gradient, while chirality implies drifting circles perpendicular to the gradient (picture).
Shubham Anand +2 more
openaire +3 more sources
Elastohydrodynamic synchronization of rotating bacterial flagella
, 2022 To rotate continuously without jamming, the flagellar filaments of bacteria need to be locked in phase. While several models have been proposed for eukaryotic flagella, the synchronization of bacterial flagella is less well understood.
Tătulea-Codrean, Maria, Lauga, Eric
core +1 more source
Multiple Roles of Protamine Kinase SRPK1 and Phosphatase PP1γ in Sperm Development
PROTEOMICS, EarlyView.ABSTRACT Protein phosphorylation regulates key events of male germ cell differentiation. In the testis, SRPK1 and PP1γ are involved in protamine phosphorylation and dephosphorylation, respectively, and their deregulation is linked to defective chromatin structure and male infertility.
Alberto de la Iglesia +7 more
wiley +1 more source
Differential View on the Bile Acid Stress Response of Clostridioides difficile
Frontiers in Microbiology, 2019 Clostridioides difficile is an intestinal human pathogen that uses the opportunity of a depleted microbiota to cause an infection. It is known, that the composition of the intestinal bile acid cocktail has a great impact on the susceptibility toward a C.
Susanne Sievers +10 more
doaj +1 more source
Synchronization and bundling of anchored bacterial flagella [PDF]
, 2012 The synchronization and bundling process of bacterial flagella is investigated by mesoscale hydrodynamic simulations. Systems with two to six flagella are considered, which are anchored at one end, and are driven by a constant torque.
Winkler, R.G., Reigh, S.Y., Gompper, G.
core +1 more source
Responsive Materials, EarlyView.This review summarizes the recent progress in responsive NO‐releasing materials and their applications in biofilm‐associated infectious diseases. The design principles and response mechanisms are given to provide inspiration toward the future development of multi‐responsive NO‐releasing materials.
Wenyue Sun +8 more
wiley +1 more source
Structural diversity in flagella of enteropathogenic E. coli [PDF]
, 1989 The ultrastructure of flagella of enteropathogenic E. coli was analysed by electron microscopy. The flagella of E. coli 0126, 026, 0114 and 0128, each of which have different H antigen types, were tentatively classified into four types according to their
Takashi FUJII, Fujii, Takashi
core +1 more source
Liquid Crystal Polymers as Intrinsically Magnetic and Programmable Soft Materials for Microrobotics
Small, EarlyView.Liquid crystal polymers (LCPs) are proposed as intrinsically magnetic, programmable, soft materials for microrobotics. Magnetic torque‐driven manipulation of LCP microobjects is achieved and characterized in terms of the step‐out frequency, reaching ∼0.6 Hz in a ∼250 mT magnetic field. The orientation of LCP microobjects in the magnetic field and their
Alexandra Gruzdenko +5 more
wiley +1 more source
Small Methods, EarlyView.The 3D beating dynamics of eukaryotic flagella drive motility, sensory functions, and resource acquisition, yet highly non‐planar beating patterns remain poorly characterized. Based on Digital Holographic Microscopy, holoV3C enables label‐free 3D reconstruction of such complex dynamics with 53 nm axial resolution, demonstrated on mouse sperm and ...
Patryk Nienaltowski +7 more
wiley +1 more source