Comparative study of multiple thiol-based self-assembled monolayer coatings for the SERS detection of nitrite, nitrate, and perchlorate anions in water

2019 ◽  
Vol 58 (34) ◽  
pp. 9345
Author(s):  
P. Muñoz ◽  
C. T. N. Noordam ◽  
R. J. M. Egberink ◽  
J. Huskens ◽  
S. M. Garcia-Blanco
1999 ◽  
Vol 5 (6) ◽  
pp. 413-419 ◽  
Author(s):  
Bernardo R.A. Neves ◽  
Michael E. Salmon ◽  
Phillip E. Russell ◽  
E. Barry Troughton

Abstract: In this work, we show how field emission–scanning electron microscopy (FE-SEM) can be a useful tool for the study of self-assembled monolayer systems. We have carried out a comparative study using FE-SEM and atomic force microscopy (AFM) to assess the morphology and coverage of self-assembled monolayers (SAM) on different substrates. The results show that FE-SEM images present the same qualitative information obtained by AFM images when the SAM is deposited on a smooth substrate (e.g., mica). Further experiments with rough substrates (e.g., Al grains on glass) show that FE-SEM is capable of unambiguously identifying SAMs on any type of substrate, whereas AFM has significant difficulties in identifying SAMs on rough surfaces.


2016 ◽  
Vol 45 (43) ◽  
pp. 17153-17159 ◽  
Author(s):  
Alvar R. Garrigues ◽  
Li Yuan ◽  
Lejia Wang ◽  
Simranjeet Singh ◽  
Enrique del Barco ◽  
...  

In this work we present a comparative study of the temperature behavior of charge current in both single-molecule transistors and self-assembled monolayer-based tunnel junctions with ferrocene molecules.


2018 ◽  
Vol 49 (9) ◽  
pp. 1469-1477 ◽  
Author(s):  
Hang Zhao ◽  
Wuliji Hasi ◽  
Lin Bao ◽  
Yuping Liu ◽  
Siqingaowa Han ◽  
...  

2019 ◽  
Author(s):  
Luke Clifton ◽  
Nicoló Paracini ◽  
Arwel V. Hughes ◽  
Jeremy H. Lakey ◽  
Nina-Juliane Seinke ◽  
...  

<p>We present a reliable method for the fabrication of fluid phase unsaturated bilayers which are readily self-assembled on charged self-assembled monolayer (SAM) surfaces producing high coverage floating supported bilayers where the membrane to surface distance could be controlled with nanometer precision. Vesicle fusion was used to deposit the bilayers onto anionic SAM coated surfaces. Upon assembly the bilayer to SAM solution interlayer thickness was 7-10 Å with evidence suggesting that this layer was present due to SAM hydration repulsion of the bilayer from the surface. This distance could be increased using low concentrations of salts which caused the interlayer thickness to enlarge to ~33 Å. Reducing the salt concentration resulted in a return to a shorter bilayer to surface distance. These accessible and controllable membrane models are well suited to a range of potential applications in biophysical studies, bio-sensors and Nano-technology.</p><br>


2021 ◽  
Author(s):  
Lidia Rosado Piquer ◽  
Jan Dreiser ◽  
E. Carolina Sañudo

The heterometallic 3d-4f SMM [Co4Dy(OH)2(SALOH)5(chp)4(MeCN)(H2O)2] (1) has been deposited onto iron oxide nanoparticles (NP) with an oleate self-assembled monolayer (SAM) as surfactant. The hybrid molecular-inorganic system 1-NP has been thoroughly...


2021 ◽  
Author(s):  
Yoshito Tobe ◽  
Kazukuni Tahara ◽  
Steven De Feyter

Chirality in two-dimensions (2D) has attracted increasing attention with regard to interesting fundamental aspects as well as potential applications. This article reports several aspects of supramolecular chirality control as exemplified...


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