Intercalation of methylene blue in n-alkanethiolated self-assembled monolayers: Versatile electrochemical platforms for characterizing surfactant adsorption on hydrophobic surfaces

2006 ◽  
Vol 51 (25) ◽  
pp. 5274-5285 ◽  
Author(s):  
Shuai Yuan ◽  
Chengguo Hu ◽  
Shengshui Hu
Keyword(s):  
Methylene Blue ◽  
Self Assembled Monolayers ◽  
Surfactant Adsorption ◽  
Hydrophobic Surfaces ◽  
Assembled Monolayers ◽  
Self Assembled

scholarly journals Probing molecular interactions with methylene blue derivatized self-assembled monolayers

2015 ◽  
Vol 6 ◽  
pp. 1-6 ◽  
Author(s):  
Eleni Koutsoumpeli ◽  
James Murray ◽  
Dylan Langford ◽  
Robin S. Bon ◽  
Steven Johnson
Keyword(s):  
Methylene Blue ◽  
Molecular Interactions ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

A hybrid organic–inorganic layered TiO2 based nanocomposite for sunlight photocatalysis

RSC Advances ◽  
2016 ◽  
Vol 6 (22) ◽  
pp. 18538-18541 ◽  
Author(s):  
Eglantina Benavente ◽  
Carlos Maldonado ◽  
Sindy Devis ◽  
Leslie Diaz ◽  
Harold Lozano ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Stearic Acid ◽  
Self Assembled Monolayers ◽  
Hybrid Nanocomposite ◽  
Assembled Monolayers ◽  
Self Assembled

A novel hybrid nanocomposite constituted of single TiO2 nanosheets sandwiched between stearic acid self-assembled monolayers was synthesized and tested in the photodegradation of methylene blue under sunlight.

The Effect of Hydrophobic Alkyl Silane Self-Assembled Monolayers on Adult Barnacle Adhesion

2017 ◽  
Vol 51 (2) ◽  
pp. 39-48
Author(s):  
Manuel A. Figueroa ◽  
Jennifer D. Schablik ◽  
Madison Mastroberte ◽  
Lovejot Singh ◽  
Gary H. Dickinson
Keyword(s):  
Shear Stress ◽  
Critical Shear Stress ◽  
Self Assembled Monolayers ◽  
Strong Positive Correlation ◽  
Cohesive Failure ◽  
Hydrophobic Surfaces ◽  
Glass Slides ◽  
Wide Range ◽  
Assembled Monolayers ◽  
Self Assembled

AbstractAlthough there exists a wide range of nonbiocidal and environmentally friendly surface coatings to reduce biofouling on marine structures, there is still not a fundamental understanding of barnacle adhesion upon reattachment. The purpose of this study is to assess the effect of hydrophobicity on adhesion in the barnacle Amphibalanus amphitrite, an abundant and widespread biofouler. Self-assembled monolayers were made on glass slides from alkyl silanes with methylated and fluorinated terminal groups to produce hydrophobic surfaces. Coated and uncoated glass slides underwent a 2-week barnacle reattachment assay. Barnacles were removed using a force gauge, and critical shear stress was calculated for each substrate. Following reattachment assays, a Coomassie Blue G250 protein stain was used to quantify the amount of glue remaining on substrates by measuring pixel density with ImageJ software on glue scans. Critical shear stress was found to be significantly higher for both hydrophobic surfaces as compared to the hydrophilic uncoated glass, and correspondingly, the density of residual glue was higher on hydrophobic surfaces. Given that hydrophobic substrates can exclude water from the surface, they may provide a protected environment for glue release that is favorable for adhesive bond formation with the substrate as well as inter- and intramolecular bonding within the glue layer. Critical shear stress showed a strong positive correlation with residual glue density, suggesting that barnacle release occurs primarily via cohesive failure. Scanning Electron Microscope (SEM) micrographs confirm morphological differences in the glue remnants, depending on the substrate coating. Among the hydrophobic substrates tested, results suggest that contact angle alone is not enough to predict the critical shear stress of barnacles. The chemical and physical properties of the coating become important parameters to consider in antifouling coating design.

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
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