Diversity of physical properties of bacterial extracellular membrane vesicles revealed through atomic force microscopy phase imaging

Nanoscale ◽  
2020 ◽  
Vol 12 (14) ◽  
pp. 7950-7959 ◽  
Author(s):  
Yousuke Kikuchi ◽  
Nozomu Obana ◽  
Masanori Toyofuku ◽  
Noriyuki Kodera ◽  
Takamitsu Soma ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Physical Properties ◽  
Membrane Vesicles ◽  
Physical Characterization ◽  
Bacterial Membrane ◽  
Phase Imaging ◽  
Force Microscopy ◽  
Atomic Force ◽  
Single Vesicle

This study provides a new methodology using phase imaging for quantitative single-vesicle physical characterization of extracellular bacterial membrane vesicles.

The Application of Atomic Force Microscopy to the Characterization of Industrial Polymer Materials

MRS Bulletin ◽  
2004 ◽  
Vol 29 (7) ◽  
pp. 464-470 ◽  
Author(s):  
Georg K. Bar ◽  
Gregory F. Meyers
Keyword(s):  
Atomic Force Microscopy ◽  
Polymeric Materials ◽  
Porous Polymer ◽  
Polymer Materials ◽  
Phase Imaging ◽  
Structure Property ◽  
Polymer Systems ◽  
Force Microscopy ◽  
Atomic Force

AbstractAtomic force microscopy (AFM) is now well established among the tools of choice for the analysis and characterization of materials.Applications of AFM span many industries including chemicals, plastics, pharmaceuticals, and semiconductors.Advancements in AFM instrumentation over the last five years have expanded the range of application of this technology to investigate thermal and mechanical properties of complex materials at high spatial resolution as well as structural and morphological characterization of materials subjected to thermal and mechanical stresses.In particular, this has been an enabling technology for an improved understanding of structure–property relationships in polymeric materials including homopolymers, blends, impact-modified polymer systems, porous polymer systems, and semicrystalline polymers.Practical examples illustrate applications of contact, tapping-mode, phase-imaging, hot-stage, and scanning thermal methods for the characterization of modern industrial polymer materials.

In Operando Detection of the Physical Properties Change of the Interfacial Electrolyte during Li-Metal Electrode Reaction by Atomic Force Microscopy

2020 ◽  
Author(s):  
Mitsunori Kitta
Keyword(s):  
Atomic Force Microscopy ◽  
Energy Dissipation ◽  
Physical Properties ◽  
Electrode Surface ◽  
Electrode Reaction ◽  
Metal Electrode ◽  
Ion Concentration ◽  
Force Microscopy ◽  
Atomic Force ◽  
Discharge Reaction

This manuscript propose the operando detection technique of the physical properties change of electrolyte during Li-metal battery operation.The physical properties of electrolyte solution such as viscosity (η) and mass densities (ρ) highly affect the feature of electrochemical Li-metal deposition on the Li-metal electrode surface. Therefore, the operando technique for detection these properties change near the electrode surface is highly needed to investigate the true reaction of Li-metal electrode. Here, this study proved that one of the atomic force microscopy based analysis, energy dissipation analysis of cantilever during force curve motion, was really promising for the direct investigation of that. The solution drag of electrolyte, which is controlled by the physical properties, is directly concern the energy dissipation of cantilever motion. In the experiment, increasing the energy dissipation was really observed during the Li-metal dissolution (discharge) reaction, understanding as the increment of η and ρ of electrolyte via increasing of Li-ion concentration. Further, the dissipation energy change was well synchronized to the charge-discharge reaction of Li-metal electrode.This study is the first report for direct observation of the physical properties change of electrolyte on Li-metal electrode reaction, and proposed technique should be widely interesting to the basic interfacial electrochemistry, fundamental researches of solid-liquid interface, as well as the battery researches.

Stereometric characterization of Dinizia excelsa Ducke wood from Amazon rainforest using atomic force microscopy

2021 ◽  
Author(s):  
Willian Silva Conceição ◽  
Ştefan Ţălu ◽  
Robert Saraiva Matos ◽  
Glenda Quaresma Ramos ◽  
Fidel Guereiro Zayas ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Amazon Rainforest ◽  
Force Microscopy ◽  
Atomic Force ◽  
Dinizia Excelsa
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