Femtosecond-laser processing of nitrobiphenylthiol self-assembled monolayers

2013 ◽  
Vol 278 ◽  
pp. 43-46 ◽  
Author(s):  
Anja Schröter ◽  
Steffen Franzka ◽  
Jürgen Koch ◽  
Boris N. Chichkov ◽  
Andreas Ostendorf ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Processing ◽  
Self Assembled Monolayers ◽  
Femtosecond Laser Processing ◽  
Assembled Monolayers ◽  
Self Assembled

scholarly journals In-situ guidance of individual neuronal processes by wet femtosecond-laser processing of self-assembled monolayers

2011 ◽  
Vol 99 (16) ◽  
pp. 163701 ◽  
Author(s):  
Hideaki Yamamoto ◽  
Kazunori Okano ◽  
Takanori Demura ◽  
Yoichiroh Hosokawa ◽  
Hiroshi Masuhara ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Processing ◽  
Self Assembled Monolayers ◽  
Femtosecond Laser Processing ◽  
Assembled Monolayers ◽  
Neuronal Processes ◽  
Self Assembled

Sub-micron scale patterning using femtosecond laser and self-assembled monolayers interaction

2005 ◽  
Vol 240 (1-4) ◽  
pp. 296-304 ◽  
Author(s):  
Wonseok Chang ◽  
Moojin Choi ◽  
Jaegu Kim ◽  
Sunghak Cho ◽  
Kyunghyun Whang
Keyword(s):  
Femtosecond Laser ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Stem Cell-Based Self-Assembled Tissues Cultured on a Nano-Periodic-Structured Surface Patterned Using Femtosecond Laser Processing

2016 ◽  
Vol 10 (1) ◽  
pp. 55-61 ◽  
Author(s):  
Hiromichi Fujie ◽  
◽  
Kei Oya ◽  
Yuki Tani ◽  
Kenji Suzuki ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Cell Culture ◽  
Surface Roughness ◽  
Stem Cell ◽  
Femtosecond Laser ◽  
Laser Processing ◽  
Cell Passage ◽  
Structured Surface ◽  
Femtosecond Laser Processing ◽  
Self Assembled

The present study was conducted to determine the effects of a nano-periodic-structured surface on the morphological and mechanical properties of a stem-cell-based self-assembled tissue (scSAT) developed for biological tissue repair. Nano-periodic groove structures were patterned on a pure titanium surface using femtosecond laser processing, and the structure was replicated on polydimethylsiloxane (PDMS). The depth, periodic pitch, and surface roughness (Ra) of the PDMS grooves were 48 ± 21 nm, 522 ± 9 nm, and 17 ± 5 nm, respectively. Human synovial cells, including mesenchymal stem cells, were subjected to 4-time cell passage, and then cultured on the PDMS surface at a density of 4.0 × 105cells/cm2in a growth medium with 0.2 mM ascorbic acid 2-phosphate to produce scSATs (nano-scSAT). For comparison, some of the cells subjected to 4-time cell passage were cultured on either a flat PDMS substrate with 6 ± 1 nm of surface roughness (Ra) (flat-scSAT) or a commercially available cell culture plate of polystyrene (normal-scSAT), at a cell density identical to that in the nano-scSAT group. At 28 days of cell culture, the scSATs were gently detached from the culture plates and subjected to morphological observation and mechanical testing. Microscopic observation revealed that the nano-scSATs exhibited a dense tissue of cells and an extracellular matrix with an anisotropic structure, while the flat- and normal-scSATs exhibited a sparse and isotropic structure. The tangent modulus and tensile strength were significantly higher in the nano-scSATs than in the flat- and normal-scSATs. These results suggest that a nano-periodic-structured surface improves the morphological and mechanical properties of scSATs.

Electrochemical behavior of self-assembled monolayers based on functionalized oligothiophenes

1998 ◽  
Vol 95 (6) ◽  
pp. 1339-1342 ◽  
Author(s):  
R. Michalitsch ◽  
A. El Kassmi ◽  
P. Lang ◽  
A. Yassar ◽  
F. Garnier
Keyword(s):  
Electrochemical Behavior ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Imaging of patterned self-assembled monolayers by scanning photoelectron microscopy

2003 ◽  
Vol 104 ◽  
pp. 459-462 ◽  
Author(s):  
R. Klauser ◽  
M. Zharnikov ◽  
I.-H. Hong ◽  
S.-C. Wang ◽  
A. Gölzhäuser ◽  
...  
Keyword(s):  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Scanning Photoelectron Microscopy ◽  
Self Assembled
Sign in / Sign up

Export Citation Format

Share Document