Simulating the Effect of Charge State on Reactive Landing of a Cyclic Tetrapeptide on Chemically Modified Alkylthiolate Self-Assembled Monolayer Surfaces

2017 ◽  
Vol 121 (27) ◽  
pp. 14628-14635 ◽  
Author(s):  
George L. Barnes ◽  
Amanda Podczerwinski
Keyword(s):  
Charge State ◽  
Self Assembled Monolayer ◽  
Chemically Modified ◽  
Self Assembled ◽  
Cyclic Tetrapeptide ◽  
Reactive Landing

Self-assembled monolayer growth on chemically modified polymer surfaces

2006 ◽  
Vol 252 (10) ◽  
pp. 3532-3540 ◽  
Author(s):  
S. Pimanpang ◽  
Pei-I. Wang ◽  
G.-C. Wang ◽  
T.-M. Lu
Keyword(s):  
Polymer Surfaces ◽  
Self Assembled Monolayer ◽  
Chemically Modified ◽  
Modified Polymer ◽  
Monolayer Growth ◽  
Self Assembled

Atomic Force Microscopy Imaging of Glucose Oxidase using Chemically Modified Tips

2003 ◽  
Vol 56 (10) ◽  
pp. 1039 ◽  
Author(s):  
Dusan Losic ◽  
Ken Short ◽  
Joe G. Shapter ◽  
Justin J. Gooding
Keyword(s):  
Atomic Force Microscopy ◽  
Glucose Oxidase ◽  
Self Assembled Monolayer ◽  
Microscopy Imaging ◽  
Force Microscopy ◽  
Chemically Modified ◽  
Atomic Force ◽  
Hydrophilic Nature ◽  
Assembled Monolayers ◽  
Self Assembled

Atomic force microscopy (AFM) tips have been chemically modified using a variety of approaches mostly based on self-assembled monolayers (SAMs). Tips with both a hydrophobic and hydrophilic nature have been prepared and used to image glucose oxidase covalently attached to a self-assembled monolayer.

Tribological Characteristics of Materials for MEMS/NEMS by Using Chemically Modified AFM Tip

2007 ◽  
Author(s):  
J. C. Heo ◽  
K. S. Kim ◽  
K. W. Kim
Keyword(s):  
Tribological Characteristics ◽  
Adhesion Forces ◽  
Self Assembled Monolayer ◽  
Chemically Modified ◽  
Self Assembled

Friction and adhesion tests were conducted in order to investigate the tribological characteristics of materials for MEMS/NEMS using AFM. AFM Si tips were chemically modified with self-assembled monolayer (SAM) derived from trichlorosilane like OTS and FOTS, and various materials such as Si, Al, Au, Cu, Ti, PMMA and PDMS were prepared for the tests. The friction and adhesion forces between AFM Si tip modified with SAM and MEMS/NEMS materials were measured and compared to those forces when AFM tip was uncoated. According to the results, however, the effect of SAM on the reduction of friction and adhesion could be changed with counterpart materials. After coating OTS on Si tip, the friction and adhesion forces on most of materials decreased while the friction and adhesion forces on PDMS rather increased than decreased. In case of the coating of FOTS, the friction and adhesion forces on PMMA540k and PDMS increased. Therefore, the adequate application of SAM would be required to effectively reduce friction and adhesion on each material for MEMS/NEMS.

Charge retention of soft-landed phosphotungstate Keggin anions on self-assembled monolayers

2016 ◽  
Vol 18 (13) ◽  
pp. 9021-9028 ◽  
Author(s):  
K. Don D. Gunaratne ◽  
Venkateshkumar Prabhakaran ◽  
Amity Andersen ◽  
Grant E. Johnson ◽  
Julia Laskin
Keyword(s):  
Charge State ◽  
Self Assembled Monolayers ◽  
Self Assembled Monolayer ◽  
Charge Retention ◽  
Assembled Monolayers ◽  
Keggin Anions ◽  
Self Assembled

Preferential immobilization of the 2− charge state observed for polyoxotungstate Keggin anions soft-landed onto self-assembled monolayer surfaces.

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