Topographic characterization of the self-assembled nanostructures of chitosan on mica surface by atomic force microscopy

2015 ◽  
Vol 353 ◽  
pp. 757-763 ◽  
Author(s):  
Li Wang ◽  
Jiafeng Wu ◽  
Yan Guo ◽  
Coucong Gong ◽  
Yonghai Song
Keyword(s):  
Atomic Force Microscopy ◽  
The Self ◽  
Mica Surface ◽  
Force Microscopy ◽  
Atomic Force ◽  
Self Assembled

NANOSTRUCTURES FROM DESIGNER PEPTIDES

COSMOS ◽  
2008 ◽  
Vol 04 (02) ◽  
pp. 173-183
Author(s):  
BOON TEE ONG ◽  
PARAYIL KUMARAN AJIKUMAR ◽  
SURESH VALIYAVEETTIL
Keyword(s):  
Atomic Force Microscopy ◽  
Solid State ◽  
Self Assembly ◽  
Size Range ◽  
The Self ◽  
Mica Surface ◽  
Force Microscopy ◽  
Solution Structures ◽  
Atomic Force

The present article reviews the self-assembly of oligopeptides to form nanostructures, both in solution and in solid state. The solution structures of the peptides were examined using circular dichroism and dynamic light scattering. The solid state assembly was examined by adsorbing the peptides onto a mica surface and analyzing it using atomic force microscopy. The role of pH and salt concentration on the peptide self-assembly was also examined. Nanostructures within a size range of 3–10 nm were obtained under different conditions.

Self-Assembled Lipid Tubules: Synthesis, Characterization, and Ordered Arrays

2006 ◽  
Vol 922 ◽  
Author(s):  
Yue Zhao ◽  
Nidhi Mahajan ◽  
Jiyu Fang
Keyword(s):  
Atomic Force Microscopy ◽  
Lipid Bilayer ◽  
Surface Patterning ◽  
The Self ◽  
Two Dimensional ◽  
Force Microscopy ◽  
Ordered Arrays ◽  
Atomic Force ◽  
Self Assembled ◽  
Lipid Tubules

AbstractThe rolling of lipid bilayer sheets into hollow cylindrical tubules have emerged as a group of interesting supramolecular nanostructures. Here, we image the self-assembled tubules of 1,2-bis(tricosa-10,12-diynoyl)-sn-glycero-3-phosphochloline (DC8,9PC) with atomic force microscopy. Nanoscale ripple structures with a periodicity of ~ 200nm in the cylindrical lipid tubules are observed. We develop two simple methods based on microfluidic networks and surface patterning to produce two dimensional ordered arrays of parallel aligned lipid tubules on substrates.

scholarly journals Specific effects of calcium acetate on the self-assembly of chitosan molecules on mica surface observed with atomic force microscopy

2018 ◽  
Vol 21 (1) ◽  
pp. 2007-2015
Author(s):  
Weisha Kong ◽  
Zhiwei Wang ◽  
Shengying Fei ◽  
Qi Xiao ◽  
Mengyao Lu ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Self Assembly ◽  
Calcium Acetate ◽  
The Self ◽  
Mica Surface ◽  
Force Microscopy ◽  
Specific Effects ◽  
Atomic Force

scholarly journals Cation-Specific Effects on the Self-Assembly of Collagen Molecules Mediated by Acetate on Mica Surface Observed with Atomic Force Microscopy

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Zhiwei Wang ◽  
Qi Xiao ◽  
Xuan Song ◽  
Yunfei Wan ◽  
Jie Zhu
Keyword(s):  
Atomic Force Microscopy ◽  
Self Assembly ◽  
Ionic Concentration ◽  
Collagen Fibrils ◽  
The Self ◽  
Mica Surface ◽  
Force Microscopy ◽  
Specific Effects ◽  
Atomic Force ◽  
Base Method

The well-organized collagen layers on mica surface have drawn extensive attention for its essential applications and studies on the process of self-assembly as a model system. In this work, collagen extracted from fish scales by acid-base method was used to explore the self-assembly characters, and atomic force microscopy was applied to observe the collagen assembled on mica surface mediated by acetate with four different cations, including K+, Na+, Mg2+, and Ca2+. It showed that cations might influence the interaction between collagen fibrils and mica surface at high ionic concentration. And a similar network structure was acquired with uniform pore size for four kinds of acetates; nearly ranged collagen fibrils in the same direction were collected in Mg2+ solutions, while flat films with some fibrils were achieved in K+ solutions. The Hofmeister series and Collins’ model were adapted to explain the effects of cations and acetate on the self-assembly of collagen. These results and analysis would be helpful for directing the pattern of collagen assembly on a solid surface with a potential application in food science and engineering.

Structural Characterization of Self-Assembled Monolayers of Neoglycoconjugates Using Atomic Force Microscopy

Langmuir ◽  
2005 ◽  
Vol 21 (14) ◽  
pp. 6142-6144 ◽  
Author(s):  
Christophe Tromas ◽  
Peter Eaton ◽  
Jean Mimault ◽  
Javier Rojo ◽  
Soledad Penadés
Keyword(s):  
Atomic Force Microscopy ◽  
Structural Characterization ◽  
Self Assembled Monolayers ◽  
Force Microscopy ◽  
Atomic Force ◽  
Assembled Monolayers ◽  
Self Assembled

scholarly journals Synthesis and Characterization of the Fluorescent Self-Assembled Structures Formed by Benzothiazolone Conjugates and Applications in Cellular Imaging

2021 ◽  
Author(s):  
Nidhi Gour ◽  
Vivekshinh Kshtriya ◽  
Bharti Koshti ◽  
Ankit Gangrade ◽  
Ashadul Haque ◽  
...  
Keyword(s):  
Mammalian Cells ◽  
Cell Imaging ◽  
The Self ◽  
Synthesis And Characterization ◽  
Force Microscopy ◽  
Imaging Tool ◽  
Atomic Force ◽  
Mechanisms Of Formation ◽  
Self Assembled

<p>We report <a>the synthesis and characterization of self-assembled</a> structures formed by4-Choro-2(3H)-benzothiazolone (<b>VK</b>) to panchromatic fibers and its application as cell imaging tool. The aggregation properties ofthe synthesized compounds have been studied extensively under different solvent and concentrationand theirmorphologies examined at supramolecular level was observed by microscopic techniques like optical microscopy, fluorescence microscopy, and atomic force microscopy(AFM). Interestingly, the self-assembled structures formed by <b>VK</b>reveal panchromatic emission properties andshow blue, green and red fluorescence under different excitation filters. The intensity of the fluorescence observed was blue>green>red and the dye interestingly do not show any fluorescence quenching, on the other hand reveal photoactive properties under green channel. The mechanisms of formation of the self-assemblies were studied through different techniques like concentration dependent NMR and,UV visible spectroscopy and fluorescencemicroscopic studies.Finally, the utility of <b>VK</b> for cell imaging applications is demonstrated and it can be noted that <b>VK</b> can be efficientlyup taken by mammalian cells and the stained cells reveal panchromatic emission under blue, green and red channel.<b></b></p>

Structural Characterization of Self-Assembled Polypeptide Films on Titanium and Glass Surfaces by Atomic Force Microscopy

2005 ◽  
Vol 6 (6) ◽  
pp. 3345-3350 ◽  
Author(s):  
István Pelsöczi ◽  
Kinga Turzó ◽  
Csilla Gergely ◽  
András Fazekas ◽  
Imre Dékány ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Structural Characterization ◽  
Force Microscopy ◽  
Atomic Force ◽  
Self Assembled ◽  
Glass Surfaces
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