Atomic Force Microscopy

Emerging illuminated and operando techniques for solar fuel research

Paper summary

Integrated photoelectrochemical devices rely on the synergy between components to efficiently generate sustainable fuels from sunlight. The micro- and/or nanoscale characteristics of the components and their interfaces often control critical processes of the device, such as charge-carrier generation, electron and ion transport, surface potentials, and electrocatalysis. in this paper we are going to study spatial properties and structure–property relationships of these which can provide insight into designing scalable and efficient solar fuel components and systems.

Journal : The Journal of Chemical Physics

Publiosh Date : 10 July 2020

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Emerging illuminated and operando techniques for solar fuel research

Atomic force microscopy analysis of surface topography of pure thin aluminum films

Paper summary

This article is about surface analysis of pure aluminum thin films by AFM and films were deposited on stainless and mild steel substrates through rf magnetron sputtering at rf powers of 150 and 200 W and the result of this article shows that the morphologies of the surface structures of Al films vary with power and substrate type.

Journal : Materials Research Express

Publiosh Date : 28 April 2018

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Atomic force microscopy analysis of surface topography of pure thin aluminum films

Shape Deformation in Ion Beam Irradiated Colloidal Monolayers

Paper summary

In this paper, Swiss scientists study the morphology of monolayers of packed polystyrene particles irradiated with oxygen ions impinging at normal incidence for the substrate for increasing fluency in a regime in which the electronic stopping power Se is much higher than the nuclear stopping power of Sn. Examined ion radiation in a diet not yet studied for polymer particles, which understood the particle deformation for the practical applications of colloidal self-assembly, as well as the visual understanding of the ion irradiation mechanisms.

Journal : Nanomaterials

Publiosh Date : 30 March 2020

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Shape Deformation in Ion Beam Irradiated Colloidal Monolayers

Usage of atomic force microscopy for detection of the damaging effect of CdCl2 on red blood cells membrane

Paper summary

The possibility of detecting the damaging effect of cadmium salts on red blood cells (RBC) membrane by AFM and light microscopy was studied. The study showed that CdCl2 has a damaging effect on the RBC membrane, which leads to the formation of non-specific cell forms. A comparative assessment was made between the methods of optical microscopy and atomic force microscopy for the suitability of studying the morphological characteristics of abnormal forms of the RBC.

Journal : Ecotoxicology and Environmental Safety

Publiosh Date : 17 November 2020

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Usage of atomic force microscopy for detection of the damaging effect of CdCl2 on red blood cells membrane

Spatial resolution and property contrast in local mechanical mapping of polymer blends using AFM force spectroscopy

Paper summary

The study is based on model polymer samples including elastomers, thermoplastics and thermoset resins and on contact mechanics considerations to provide a better understanding of the main parameters governing spatial resolution and property contrast in AFM-based nanomechanical mapping.

Journal : Polymer

Publiosh Date : 18 January 2019

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Spatial resolution and property contrast in local mechanical mapping of polymer blends using AFM force spectroscopy

Dynamic Behavior of RNA Nanoparticles Analyzed by AFM on a Mica/Air Interface

Paper summary

RNA is an attractive biopolymer for engineering self-assembling materials suitable for biomedical applications. programmable hexameric RNA rings were developed for the controlled delivery of up to six different functionalities.In this strategy based on an algorithmic, atomic force microscopy (AFM)-resolved deformation analysis of the RNA nanoparticles studied on a mica/air interface.

Journal : ACS Publications

Publiosh Date : 18 April 2018

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Dynamic Behavior of RNA Nanoparticles Analyzed by AFM on a Mica/Air Interface

Nanoscale effects of beverages on enamel surface of human teeth: An atomic force microscopy study

Paper summary

Korean researchers have been used AFM techniques to quantitatively assess the earliest stages of tooth enamel erosion from sugary, acidic drinks. They found that surface roughness increased and elastic modulus decreased with increasing immersion time in the beverages.

Journal : Science Direct

Publiosh Date : 29 June 2020

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TopoStats – A program for automated tracing of biomolecules from AFM images

TopoStats – A program for automated tracing of biomolecules from AFM images

Paper summary

TopoStat is a new Python toolkit for automated editing and analysis of Atomic Force Microscopy images. The program includes identification and tracing of individual molecules in both circular and linear conformations without user input and is freely available via GitHub.

In the paper the team demonstrate the power of TopoStats by identifying and tracing individual biomolecules, including DNA origami, pore-forming proteins, and DNA molecules in both closed circular and linear form.

Journal : Journal of Electron Microscopy

Publiosh Date : 24 September 2020

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TopoStats – A program for automated tracing of biomolecules from AFM images

Illustration of the sequential image processing and tracing steps undertaken by TopoStats for a raw AFM image of 339 base-pair DNA minicircles.