Probing pH-Tuned Morphological Changes in Core−Shell Nanoparticle Assembly Using Atomic Force Microscopy

Nano Letters ◽  
2001 ◽  
Vol 1 (10) ◽  
pp. 575-579 ◽  
Author(s):  
Mathew M. Maye ◽  
Jin Luo ◽  
Li Han ◽  
Chuan-Jian Zhong



Langmuir ◽  
2002 ◽  
Vol 18 (8) ◽  
pp. 3127-3133 ◽  
Author(s):  
Theodore A. Betley ◽  
Jessica A. Hessler ◽  
Almut Mecke ◽  
Mark M. Banaszak Holl ◽  
Bradford G. Orr ◽  
...  


2009 ◽  
Vol 106 (5) ◽  
pp. 054319 ◽  
Author(s):  
Rachel A. Oliver ◽  
Joy Sumner ◽  
Menno J. Kappers ◽  
Colin J. Humphreys


2005 ◽  
Vol 49 (10) ◽  
pp. 4085-4092 ◽  
Author(s):  
M. Meincken ◽  
D. L. Holroyd ◽  
M. Rautenbach

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.



2017 ◽  
Vol 12 (1) ◽  
Author(s):  
Vladimir Baturin ◽  
M. Selimov ◽  
Albert Bolatchiev ◽  
Roman Budkevich ◽  
Vladimir Sadovoy ◽  
...  


Author(s):  
O. Shaffer ◽  
J. Qian ◽  
V. Dimonie ◽  
R. Pearson ◽  
M. El-Aasser

Atomic force microscopy (AFM) is a powerful scanning probe technique, which is capable of imaging polymer surfaces. This technique is complementary to the scanning electron microscope (SEM) but because of the AFM's sensitivity in the z direction surfaces that are too smooth to image by SEM can easily be imaged by AFM. This study utilizes transmission electron microscopy(TEM) to image the morphology of the latex rubber particles; SEM and AFM are used to study the degree of dispensability of the latex particles in the epoxy, and the fatigue-fracture surface of the rubber modified epoxy.Core-shell latex particles were prepared with a core of poly(butadiene-styreiie) |P(B-S)| and a shell Poly(methyl methacrylate)(PMMA). In order to study the interaction between the core/shell particles and the epoxy matrix, the shell is systematically varied in terms of chemical bonding, physical interaction and the extent of these interactions by incorporating acrylonitrile(AN). glycidyl-methacrylate(GMA). and crosslinking agent divinylbenzene(DVB) of varying concentrations in the shell.



Langmuir ◽  
2007 ◽  
Vol 23 (4) ◽  
pp. 2007-2014 ◽  
Author(s):  
Silvia Armini ◽  
Ivan U. Vakarelski ◽  
Caroline M. Whelan ◽  
Karen Maex ◽  
Ko Higashitani


1995 ◽  
Author(s):  
Hideaki Shimizu ◽  
Toshikazu Majima ◽  
Hiroyuki Takai ◽  
Kazuo Inaba ◽  
Toshihisa Tomie


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