scholarly journals Mechanical and electrical properties of CdTe tetrapods studied by atomic force microscopy

2007 ◽  
Vol 127 (18) ◽  
pp. 184704 ◽  
Author(s):  
Liang Fang ◽  
Jeong Young Park ◽  
Yi Cui ◽  
Paul Alivisatos ◽  
Joshua Shcrier ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Electrical Properties ◽  
Force Microscopy ◽  
Mechanical And Electrical Properties ◽  
Atomic Force

Characterization of the Electrical Properties of Nickel-Based CMSX-4 Super-alloys Using Atomic Force Microscopy (AFM)

2004 ◽  
Vol 10 (S02) ◽  
pp. 1102-1103
Author(s):  
Guangchun Cui ◽  
Rosario A Gerhardt
Keyword(s):  
Atomic Force Microscopy ◽  
Electrical Properties ◽  
Force Microscopy ◽  
Atomic Force

Extended abstract of a paper presented at Microscopy and Microanalysis 2004 in Savannah, Georgia, USA, August 1–5, 2004.

scholarly journals A Novel Toolkit for Characterizing the Mechanical and Electrical Properties of Engineered Neural Tissues

Biosensors ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 51 ◽  
Author(s):  
Meghan Robinson ◽  
Karolina Valente ◽  
Stephanie Willerth
Keyword(s):  
Elastic Modulus ◽  
Electrical Properties ◽  
Elastic Moduli ◽  
Direct Method ◽  
Hydrogel Scaffolds ◽  
Force Microscopy ◽  
Mechanical And Electrical Properties ◽  
Atomic Force ◽  
Neural Tissues ◽  
Electrical Signaling

We have designed and validated a set of robust and non-toxic protocols for directly evaluating the properties of engineered neural tissue. These protocols characterize the mechanical properties of engineered neural tissues and measure their electrophysical activity. The protocols obtain elastic moduli of very soft fibrin hydrogel scaffolds and voltage readings from motor neuron cultures. Neurons require soft substrates to differentiate and mature, however measuring the elastic moduli of soft substrates remains difficult to accurately measure using standard protocols such as atomic force microscopy or shear rheology. Here we validate a direct method for acquiring elastic modulus of fibrin using a modified Hertz model for thin films. In this method, spherical indenters are positioned on top of the fibrin samples, generating an indentation depth that is then correlated with elastic modulus. Neurons function by transmitting electrical signals to one another and being able to assess the development of electrical signaling serves is an important verification step when engineering neural tissues. We then validated a protocol wherein the electrical activity of motor neural cultures is measured directly by a voltage sensitive dye and a microplate reader without causing damage to the cells. These protocols provide a non-destructive method for characterizing the mechanical and electrical properties of living spinal cord tissues using novel biosensing methods.

Nanoscale surface electrical properties of zinc oxide films investigated by conducting atomic force microscopy

2007 ◽  
Vol 71 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Chang-Feng Yu ◽  
Sy-Hann Chen ◽  
Wen-Jia Xie ◽  
Yung-Shao Lin ◽  
Cheng-Yu Shen ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Zinc Oxide ◽  
Electrical Properties ◽  
Oxide Films ◽  
Force Microscopy ◽  
Zinc Oxide Films ◽  
Atomic Force
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