scanning probe microscopy – Page 2

Cubic and oriented Ag nano-particles by high vacuum evaporation

Berner D., Zuppiroli L., Caumont M., Bacsa W.S., University Paul Sabatier, FR

Optical properties of metal nanoparticles depend strongly on size and shape. Controlling these parameters implies improving the control of their optical properties. Metal nanoparticles find applications in photonics, biological labeling and catalysis. A number of [...]

Self-Assembly of TPPS4 Porphyrin Molecules into Nanorods Investigated by TEM, AFM, STM and UV/VIS Spectroscopy

Snitka V., Rodaite R., Mizariene V., Kaunas University of Technology, LT

In this work the aggregates of the tetrakis(4-sulfonatophenyl)porphyrin (TPPS4) growth from solution on solid crystalline hydrophilic and hydrophobic substrates were investigated. The spatial structure of TPPS4 deposited on the surface was imaged using Transmission Electron [...]

Loss of Elasticity of Ageing Epithelial Cells, and Its Possible Reversal

Sokolov I., Woodworth C.D., Clarkson University, US

We investigated human epithelial cells of different age in-vitro by means of the atomic force microscopy. We found that older cells are considerably (~2-10 times) more rigid that younger cells. This helps to explain why [...]