Morphological changes of wrasse sperm axoneme after their motility initiation observed with use of atomic force microscopy

1995 ◽  
Author(s):  
Hideaki Shimizu ◽  
Toshikazu Majima ◽  
Hiroyuki Takai ◽  
Kazuo Inaba ◽  
Toshihisa Tomie
Keyword(s):  
Atomic Force Microscopy ◽  
Morphological Changes ◽  
Force Microscopy ◽  
Atomic Force

scholarly journals Atomic Force Microscopy Study of the Effect of Antimicrobial Peptides on the Cell Envelope of Escherichia coli

2005 ◽  
Vol 49 (10) ◽  
pp. 4085-4092 ◽  
Author(s):  
M. Meincken ◽  
D. L. Holroyd ◽  
M. Rautenbach
Keyword(s):  
Escherichia Coli ◽  
Atomic Force Microscopy ◽  
Morphological Changes ◽  
Cell Envelope ◽  
Microscopy Study ◽  
Target Cells ◽  
Force Microscopy ◽  
E Coli ◽  
Atomic Force ◽  
Before And After

ABSTRACT The influences of the antibacterial magainin 2 and PGLa from the African clawed frog (Xenopus laevis) and the hemolytic bee venom melittin on Escherichia coli as the target cell were studied by atomic force microscopy (AFM). Nanometer-scale images of the effects of the peptides on this gram-negative bacterium's cell envelope were obtained in situ without the use of fixing agents. These high-resolution AFM images of the surviving and intact target cells before and after peptide treatment showed distinct changes in cell envelope morphology as a consequence of peptide action. Although all three peptides are lytic to E. coli, it is clear from this AFM study that each peptide causes distinct morphological changes in the outer membrane and in some cases the inner membrane, probably as a consequence of different mechanisms of action.

scholarly journals Study of cefotaxime influence on morphological changes in the cells of Staphylococcus aureus by atomic force microscopy

2017 ◽  
Vol 12 (1) ◽  
Author(s):  
Vladimir Baturin ◽  
M. Selimov ◽  
Albert Bolatchiev ◽  
Roman Budkevich ◽  
Vladimir Sadovoy ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Atomic Force Microscopy ◽  
Morphological Changes ◽  
Force Microscopy ◽  
Atomic Force

scholarly journals Modification of FA0.85MA0.15Pb(I0.85Br0.15)3 Films by NH2-POSS

Crystals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1544
Author(s):  
Yangyang Zhang ◽  
Na Liu ◽  
Haipeng Xie ◽  
Jia Liu ◽  
Pan Yuan ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Photoelectron Spectroscopy ◽  
Spin Coating ◽  
Surface Composition ◽  
Morphological Changes ◽  
X Ray ◽  
Force Microscopy ◽  
Atomic Force ◽  
Coating Method

The surface composition and morphology of FA0.85MA0.15Pb(I0.85Br0.15)3 films fabricated by the spin-coating method with different concentrations of NH2-POSS were investigated with atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), angle-resolved X-ray photoelectron spectroscopy (AR-XPS), and Fourier transform infrared spectroscopy (FTIR). It was found that the surface composition of the FA0.85MA0.15Pb(I0.85Br0.15)3 films was changed regularly through the interaction between NH2-POSS and the perovskite film. The corresponding surface morphological changes were also observed. When the concentration of NH2-POSS exceeded 10 mg/mL, a lot of cracks on the surface of the perovskite film were observed and the surface morphology was damaged. The surface composition and its distribution can be adjusted by changing the concentration of NH2-POSS and the proper concentration of NH2-POSS can substantially improve the quality of perovskite film.

scholarly journals Morphology and Optical Properties of Nanostructures Formed in Non-Stoichiometric CdI2 Crystals

2018 ◽  
Vol 63 (9) ◽  
pp. 816 ◽  
Author(s):  
I. M. Bolesta ◽  
I. N. Rovetskii ◽  
S. R. Velgosh ◽  
S. V. Rykhlyuk ◽  
I. D. Karbovnyk ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Optical Properties ◽  
Phase Composition ◽  
Infrared Absorption ◽  
Morphological Changes ◽  
Threshold Value ◽  
Optical Characteristics ◽  
Force Microscopy ◽  
Atomic Force

The morphology of nanostructures formed in non-stoichiometric CdI2 crystals has been studied, by using the atomic force microscopy methods. Morphological changes are observed, when the concentration of cadmium atoms approaches a non-stoichiometric threshold value of 0.1 mol%. The features in the phase composition of nanostructures are analyzed with the help of Raman and infrared absorption spectroscopies. The influence of the researched nanostructures on the optical characteristics of non-stoichiometric CdI2 crystals is analyzed.

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