Interaction Control Between Endohedral Metallofullerene and Metal Substrate by Introducing Alkanethiol Self-Assembled Monolayer

2006 ◽  
Vol 6 (11) ◽  
pp. 3460-3463 ◽  
Author(s):  
Yuhsuke Yasutake ◽  
Zujin Shi ◽  
Toshiya Okazaki ◽  
Hisanori Shinohara ◽  
Yutaka Majima
Keyword(s):  
Tunneling Current ◽  
Metal Substrate ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Self Assembled Monolayer ◽  
Rotational States ◽  
Endohedral Metallofullerenes ◽  
Interaction Control ◽  
Assembled Monolayers ◽  
Self Assembled

The interaction control between endohedral metallofullerenes and a metal substrate has been demonstrated by introducing hexanethiol, octanethiol, and decanethiol self-assembled monolayers (SAMs) as the interlayer. We observe the electric properties of terbium endohedral metallofullerenes (Tb@C82) on alkanethiol SAMs with different chain lengths by scanning tunneling microscopy (STM) and spectroscopy (STS). Based on the comparison of the high-resolution STM images of a Tb@C82 molecule on hexanethiol and octanethiol SAMs, the interaction between Tb@C82 and a hexanethiol SAM is found to be larger than that between Tb@C82 and an octanethiol SAM; this is because at 68 K, the rotational states of Tb@C82 terminate only on the hexanethiol SAM. Furthermore, we find that the tunneling current-voltage characteristics of Tb@C82 on the hexanethiol SAM show the rectifying effects that are also caused by the molecular energy level shifts of Tb@C82 molecules due to the large interaction.

Specific Immobilization of Streptavidin on Mixed Self-Assembled Monolayers as Mixing Ratio

2007 ◽  
Vol 121-123 ◽  
pp. 495-498 ◽  
Author(s):  
Jun Hyung Park ◽  
Buyng Su Park ◽  
Gu Huh ◽  
Seung Hyun Lee ◽  
Hyun Sook Lee ◽  
...  
Keyword(s):  
Colorimetric Detection ◽  
Gold Surface ◽  
Self Assembled Monolayers ◽  
Scanning Tunneling ◽  
Local Domain ◽  
Mixing Ratio ◽  
Tunneling Microscopy ◽  
Self Assembled Monolayer ◽  
Assembled Monolayers ◽  
Self Assembled

We report on the distribution of mixed self-assembled monolayers (SAMs) composed of biotinylated and diluent alkylthiolates for streptavidin immobilization. Two thiol derivatives, 11-mercapto-1-undecanol (MUOH) and 11-mercaptoundecanoic-(8-biotinylamido-3,6-dioxaoctyl) amide (MBDA), were employed for mixed SAM. These thiols formed self-assembled monolayer without local domain, and streptavidins were immobilized onto biotinylated gold surface without nonspecific binding. In order to find the optimized condition of immobilization of streptavidin, we controlled the mixing ratio of two kind thiols by colorimetric detection assay, and the immobilization was characterized by atomic force microscopy (AFM), scanning tunneling microscopy (STM), and ellipsometer.

Scanning Tunneling Microscopy of Template-Stripped Au Surfaces and Highly Ordered Self-Assembled Monolayers

Langmuir ◽  
2008 ◽  
Vol 24 (12) ◽  
pp. 5984-5987 ◽  
Author(s):  
Sangyeob Lee ◽  
Sung-Soo Bae ◽  
Gilberto Medeiros-Ribeiro ◽  
Jason J. Blackstock ◽  
Sehun Kim ◽  
...  
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Self Assembled Monolayers ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Assembled Monolayers ◽  
Self Assembled

Affecting surface chirality via multicomponent adsorption of chiral and achiral molecules

2014 ◽  
Vol 50 (80) ◽  
pp. 11903-11906 ◽  
Author(s):  
Zongxia Guo ◽  
Inge De Cat ◽  
Bernard Van Averbeke ◽  
Jianbin Lin ◽  
Guojie Wang ◽  
...  
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Self Assembled Monolayer ◽  
Multicomponent Adsorption ◽  
Solid Interface ◽  
Apparent Reduction ◽  
Self Assembled

Here we report on the apparent reduction in surface chirality upon co-assembling a chiral and achiral molecule into a physisorbed self-assembled monolayer at the liquid/solid interface as revealed by scanning tunneling microscopy (STM).

scholarly journals Transfer of chiral information from a chiral solvent to a two-dimensional network

2017 ◽  
Vol 204 ◽  
pp. 215-231 ◽  
Author(s):  
Iris Destoop ◽  
Andrea Minoia ◽  
Oleksandr Ivasenko ◽  
Aya Noguchi ◽  
Kazukuni Tahara ◽  
...  
Keyword(s):  
Self Assembled Monolayers ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Chiral Induction ◽  
Dimensional Network ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
The Impact ◽  
Atomically Flat ◽  
Origin Of Homochirality

Chiral induction in self-assembled monolayers has garnered considerable attention in the recent past, not only due to its importance in chiral resolution and enantioselective heterogeneous catalysis but also because of its relevance to the origin of homochirality in life. Here, we demonstrate the emergence of homochirality in a supramolecular low-density network formed by achiral molecules at the interface of a chiral solvent and an atomically-flat achiral substrate. We focus on the impact of structure and functionality of the adsorbate and the chiral solvent on the chiral induction efficiency in self-assembled physisorbed monolayers, as revealed by scanning tunneling microscopy. Different induction mechanisms are proposed and evaluated, with the assistance of advanced molecular modeling simulations.

Sign in / Sign up

Export Citation Format

Share Document