Conductivity, morphology, interfacial chemistry, and stability of poly(3,4-ethylene dioxythiophene)-poly(styrene sulfonate): A photoelectron spectroscopy study

2003 ◽  
Vol 41 (21) ◽  
pp. 2561-2583 ◽  
Author(s):  
X. Crispin ◽  
S. Marciniak ◽  
W. Osikowicz ◽  
G. Zotti ◽  
A. W. Denier van der Gon ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Spectroscopy Study ◽  
Interfacial Chemistry ◽  
Styrene Sulfonate ◽  
Poly Styrene Sulfonate

scholarly journals Atomic Force Microscopy Characterization of Biomaterials Modified with Poly(styrene Sulfonate)

2021 ◽  
Author(s):  
Tuan Nguyen ◽  
Vincent Humblot ◽  
Veronique Migonney ◽  
Raphael Levy
Keyword(s):  
Atomic Force Microscopy ◽  
Photoelectron Spectroscopy ◽  
Grafted Polymers ◽  
Force Microscopy ◽  
Styrene Sulfonate ◽  
Atomic Force ◽  
Modified Surfaces ◽  
Protein Adhesion ◽  
Poly Styrene Sulfonate ◽  
Microscopy Characterization

<p>Polycaprolactone and polyethylene terephthalate are widely used to elaborate biomaterials and medical devices in particular for long-term implant applications but tuning their surface properties remains challenging. We investigate surface functionalization by grafting poly(sodium 4-styrene sulfonate) with the aim of enhancing protein adhesion and cellular activity. Elucidating the topography and molecular level organization of the modified surfaces is important for understanding and predicting biological activity. In this work, we explore several grafting methods including thermal grafting, thermal grafting in the presence of Mohr's salt, and UV activation. We characterize the different surfaces obtained using atomic force microscopy, contact angle and X-ray photoelectron spectroscopy. The results reveal striking differences in the properties of the modified surfaces. This work demonstrates tuning of biomaterials surface by functionalization and the capability of atomic force microscopy to provide insights into the conformation and mechanical properties of the grafted polymers. </p>

scholarly journals Atomic Force Microscopy Characterization of Biomaterials Modified with Poly(styrene Sulfonate)

2021 ◽  
Author(s):  
Tuan Nguyen ◽  
Vincent Humblot ◽  
Veronique Migonney ◽  
Raphael Levy
Keyword(s):  
Atomic Force Microscopy ◽  
Photoelectron Spectroscopy ◽  
Grafted Polymers ◽  
Force Microscopy ◽  
Styrene Sulfonate ◽  
Atomic Force ◽  
Modified Surfaces ◽  
Protein Adhesion ◽  
Poly Styrene Sulfonate ◽  
Microscopy Characterization

<p>Polycaprolactone and polyethylene terephthalate are widely used to elaborate biomaterials and medical devices in particular for long-term implant applications but tuning their surface properties remains challenging. We investigate surface functionalization by grafting poly(sodium 4-styrene sulfonate) with the aim of enhancing protein adhesion and cellular activity. Elucidating the topography and molecular level organization of the modified surfaces is important for understanding and predicting biological activity. In this work, we explore several grafting methods including thermal grafting, thermal grafting in the presence of Mohr's salt, and UV activation. We characterize the different surfaces obtained using atomic force microscopy, contact angle and X-ray photoelectron spectroscopy. The results reveal striking differences in the properties of the modified surfaces. This work demonstrates tuning of biomaterials surface by functionalization and the capability of atomic force microscopy to provide insights into the conformation and mechanical properties of the grafted polymers. </p>

Unveiling the coexistence of cis- and trans-isomers in the hydrolysis of ZrO2: A coupled DFT and high-resolution photoelectron spectroscopy study

2020 ◽  
Vol 153 (24) ◽  
pp. 244308
Author(s):  
Ali Abou Taka ◽  
Mark C. Babin ◽  
Xianghai Sheng ◽  
Jessalyn A. DeVine ◽  
Daniel M. Neumark ◽  
...  
Keyword(s):  
High Resolution ◽  
Photoelectron Spectroscopy ◽  
Spectroscopy Study ◽  
Trans Isomers ◽  
Cis And Trans Isomers ◽  
Cis And Trans ◽  
Hydrolysis Of
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