scholarly journals The effect of Galleria mellonella hemolymph polypeptides on Legionella gormanii.

2014 ◽  
Vol 61 (1) ◽  
Author(s):  
Elżbieta Chmiel ◽  
Marta Palusinska-Szysz ◽  
Agnieszka Zdybicka-Barabas ◽  
Małgorzata Cytryńska ◽  
Paweł Mak
Keyword(s):  
Atomic Force Microscopy ◽  
Survival Rate ◽  
Galleria Mellonella ◽  
Community Acquired Pneumonia ◽  
Force Microscopy ◽  
Apolipophorin Iii ◽  
Atomic Force ◽  
Legionella Species ◽  
Induced Changes ◽  
First Time

Among Legionella species, which are recognized to be pathogenic for humans, L. gormanii is the second prevalent causative agent of community-acquired pneumonia after L. pneumophila. Anti-L. gormanii activity of Galleria mellonella hemolymph extract and apolipophorin III (apoLp-III) was examined. The extract and apoLp-III at the concentration 0.025 mg/ml caused 75% and 10% decrease of the bacteria survival rate, respectively. The apoLp-III-induced changes of the bacteria cell surface were analyzed for the first time by atomic force microscopy. Our studies demonstrated the powerful anti-Legionella effects of the insect defence polypeptides, which could be exploited in drugs design against these pathogens.

Observation of angiotensin II-induced changes in fixed and live mesangial cells by atomic force microscopy

Micron ◽  
2010 ◽  
Vol 41 (3) ◽  
pp. 220-226 ◽  
Author(s):  
Gi-Ja Lee ◽  
Eun-Jin Park ◽  
Samjin Choi ◽  
Jeong-Hoon Park ◽  
Kyung-Hwan Jeong ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Angiotensin Ii ◽  
Mesangial Cells ◽  
Force Microscopy ◽  
Atomic Force ◽  
Induced Changes

Fusion Pore in Live Cells

Physiology ◽  
2002 ◽  
Vol 17 (6) ◽  
pp. 219-222 ◽  
Author(s):  
Bhanu P. Jena
Keyword(s):  
Atomic Force Microscopy ◽  
Live Cells ◽  
Fusion Pore ◽  
Secretory Cells ◽  
Secretory Vesicles ◽  
Force Microscopy ◽  
Atomic Force ◽  
Electrophysiological Measurements ◽  
First Time ◽  
Fusion Pores

Earlier electrophysiological measurements on live secretory cells suggested the presence of fusion pores at the plasma membrane, where secretory vesicles fuse to release vesicular contents. Recent studies using atomic force microscopy demonstrate for the first time the presence of the fusion pore and reveal its morphology and dynamics at near-nanometer resolution and in real time.

Intercalation-induced changes in DNA supercoiling observed in real-time by atomic force microscopy

1999 ◽  
Vol 400 (1-3) ◽  
pp. 27-32 ◽  
Author(s):  
L.H Pope ◽  
M.C Davies ◽  
C.A Laughton ◽  
C.J Roberts ◽  
S.J.B Tendler ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Real Time ◽  
Dna Supercoiling ◽  
Force Microscopy ◽  
Atomic Force ◽  
Induced Changes

scholarly journals Reinforcement Mechanism of Carbon Black-Filled Rubber Nanocomposite as Revealed by Atomic Force Microscopy Nanomechanics

Polymers ◽  
2021 ◽  
Vol 13 (22) ◽  
pp. 3922
Author(s):  
Xiaobin Liang ◽  
Makiko Ito ◽  
Ken Nakajima
Keyword(s):  
Atomic Force Microscopy ◽  
Stress Distribution ◽  
Carbon Black ◽  
Stress Concentrations ◽  
Force Microscopy ◽  
Reinforcement Mechanism ◽  
Atomic Force ◽  
Filled Rubber ◽  
First Time ◽  
The Relationship

In this study, atomic force microscopy (AFM) nanomechanics were used to visualize the nanoscale stress distribution in carbon black (CB)-reinforced isoprene rubber (IR) vulcanizates at different elongations and quantitatively evaluate their volume fractions for the first time. The stress concentrations in the protofibrous structure (stress chains) that formed around the CB filler in CB-reinforced IR vulcanizates were directly observed at the nanoscale. The relationship between the local nanoscale stress distribution and macroscopic tensile properties was revealed based on the microscopic stress distribution and microscopic spatial structure. This study can help us gain insight into the microscopic reinforcement mechanism of carbon black-containing rubber composites.

scholarly journals Методы атомно-силовой микроскопии для исследования суперпротонных кристаллов

2020 ◽  
Vol 90 (11) ◽  
pp. 1843
Author(s):  
Р.В. Гайнутдинов ◽  
А.Л. Толстихина ◽  
Е.В. Селезнева ◽  
И.П. Макарова
Keyword(s):  
Atomic Force Microscopy ◽  
Surface Morphology ◽  
Ammonium Sulfate ◽  
Paraelectric Phase ◽  
Piezoelectric Response ◽  
Force Microscopy ◽  
Atomic Force ◽  
Microscopy Data ◽  
The Stability ◽  
First Time

Complex studies of new superprotonic crystals - acidic salts of potassium – ammonium sulfate (K1-x(NH4)x)3H(SO4)2, x ≥ 0.57 were carried out. Data on surface morphology, domain structure and conductivity of samples were obtained using atomic force microscopy. For the first time, the stability and degradation of the surface of superprotonic crystals were studied at the nanoscale. Based on piezoelectric response microscopy data, it was found that when the temperature decreased from 296 to 282 K, the (K0.43(NH4)0.57)3H(SO4)2 crystal transits from the paraelectric phase to the ferroelectric one.

Sign in / Sign up

Export Citation Format

Share Document