scholarly journals Mechanical characterization of carbon nanomembranes from self-assembled monolayers

2011 ◽  
Vol 2 ◽  
pp. 826-833 ◽  
Author(s):  
Xianghui Zhang ◽  
André Beyer ◽  
Armin Gölzhäuser
Keyword(s):  
Mechanical Characterization ◽  
Self Assembled Monolayers ◽  
Bulge Test ◽  
Atomic Force ◽  
Different Types ◽  
Assembled Monolayers ◽  
Viscoelastic Behaviors ◽  
Self Assembled

This paper reports on the mechanical characterization of carbon nanomembranes (CNMs) with a thickness of 1 nm that are fabricated by electron-induced crosslinking of aromatic self-assembled monolayers (SAMs). A novel type of in situ bulge test employing an atomic force microscope (AFM) is utilized to investigate their mechanical properties. A series of biphenyl-based molecules with different types of terminal and/or anchor groups were used to prepare the CNMs, such as 4'-[(3-trimethoxysilyl)propoxy]-[1,1'-biphenyl]-4-carbonitrile (CBPS), 1,1'-biphenyl-4-thiol (BPT) and 4-nitro-1,1'-biphenyl-4-thiol (NBPT). The elastic properties, viscoelastic behaviors and ultimate tensile strength of these biphenyl-based CNMs are investigated and discussed.

Spectral and cyclic voltammetric characterization of self-assembled monolayers on gold of pyrene end-labeled oligonucleotide duplexes

1999 ◽  
Vol 77 (5-6) ◽  
pp. 1077-1084 ◽  
Author(s):  
R Scott Reese ◽  
Marye Anne Fox
Keyword(s):  
Gold Surface ◽  
Self Assembled Monolayers ◽  
Self Assembled Monolayer ◽  
Surface Emission ◽  
Assembled Monolayers ◽  
Oligonucleotide Duplex ◽  
Self Assembled ◽  
Duplex Formation

Self-assembled monolayers of sulfur-terminated oligonucleotide duplexes were formed on flat gold surfaces, either by exposure of a self-assembled monolayer bearing one oligonucleotide strand to the complementary strand or by preformation of a oligonucleotide duplex that was then deposited on a fresh gold surface. Virtually identical spectral behavior was observed whether the duplex was produced before deposition or by in situ complementary association. With a duplex bearing an appropriate pyrene end-label, the resulting thin film was photoresponsive. Surface emission measurements show no evidence for pyrene aggregation on the modified surfaces. The polarity of the photocurrent, reflecting photoinduced electron transfer initiated by photoexcitation of pyrene, is opposite that expected from the oligonucleotide-mediated reduction of the appended pyrene excited state.Key words: oligonucleotide, self-assembled monolayer, duplex formation, photoelectrochemistry, surface emission.

Structural Characterization of Self-Assembled Monolayers of Neoglycoconjugates Using Atomic Force Microscopy

Langmuir ◽  
2005 ◽  
Vol 21 (14) ◽  
pp. 6142-6144 ◽  
Author(s):  
Christophe Tromas ◽  
Peter Eaton ◽  
Jean Mimault ◽  
Javier Rojo ◽  
Soledad Penadés
Keyword(s):  
Atomic Force Microscopy ◽  
Structural Characterization ◽  
Self Assembled Monolayers ◽  
Force Microscopy ◽  
Atomic Force ◽  
Assembled Monolayers ◽  
Self Assembled

scholarly journals Mechanical characterization of nanoporous Au modified with self-assembled monolayers

2016 ◽  
Vol 109 (26) ◽  
pp. 261905 ◽  
Author(s):  
Naoki Miyazawa ◽  
Junya Ishimoto ◽  
Masataka Hakamada ◽  
Mamoru Mabuchi
Keyword(s):  
Mechanical Characterization ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

Bimodal atomic force microscopy for the characterization of thiolated self-assembled monolayers

Nanoscale ◽  
2018 ◽  
Vol 10 (48) ◽  
pp. 23027-23036 ◽  
Author(s):  
Evangelia-Nefeli Athanasopoulou ◽  
Nikolaos Nianias ◽  
Quy Khac Ong ◽  
Francesco Stellacci
Keyword(s):  
Atomic Force Microscopy ◽  
Self Assembled Monolayers ◽  
Force Microscopy ◽  
Atomic Force ◽  
Depth Analysis ◽  
Assembled Monolayers ◽  
Self Assembled

In-depth analysis of self-assembled monolayers by bimodal atomic force microscopy.

Atomic Force Microscopy Studies of Microstructure and Properties of Self Assembled Monolayers

1998 ◽  
Vol 4 (S2) ◽  
pp. 308-309
Author(s):  
Jecksan R. Santiago ◽  
E. Barry Troughton ◽  
Richard A. Dennis ◽  
Phillip E. Russell
Keyword(s):  
Ex Situ ◽  
Self Assembled Monolayers ◽  
Distance Curve ◽  
Force Microscopy ◽  
Atomic Force ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Octadecylphosphonic Acid ◽  
Section Analysis

Ex-situ and in-situ studies were performed for self-assembled monolayers (SAMs) formation on mica. The behavior of two surfactants [octadecylphosphonic acid (OPA) and dodecylphosphonic acid (DPA)] in two different solutions [ethanol or tetrahydrofuran (THF)] were studied at different concentrations. A cross section analysis of the monolayer images at partial coverage showed thickness of 1.8 nm, 0.7 nm, and 1.0 nm for OPA, DPA and mixed OPA/DPA, respectively. These values are similar to the ones presented by Xiao and those expected for a monolayer of mixed surfactants as proposed by Whitesides. Since the topography of a monolayer resembles the substrate, the presence of the monolayer at full coverage was determinated by force-distance curve measurements. It was observed that the solvent had the ability to re-dissolve the OPA monolayer, suggesting that the bonding is of a physisorption nature.

Self-assembled Monolayers Preparation and Characterization of BiFeO3 Thin Films

2009 ◽  
Vol 25 (1) ◽  
pp. 83-86 ◽  
Author(s):  
Guo-Qiang TAN ◽  
Hai-Yang BO ◽  
Hong-Yan MIAO ◽  
Ao XIA ◽  
Zhong-Liang HE
Keyword(s):  
Thin Films ◽  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled

scholarly journals Characterization of Self-Assembled Monolayers on a Ruthenium Surface

Langmuir ◽  
2017 ◽  
Vol 33 (25) ◽  
pp. 6419-6426 ◽  
Author(s):  
A. Shaheen ◽  
J. M. Sturm ◽  
R. Ricciardi ◽  
J. Huskens ◽  
C. J. Lee ◽  
...  
Keyword(s):  
Self Assembled Monolayers ◽  
Assembled Monolayers ◽  
Self Assembled
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