Experimental observation of interfacial slippage at the boundary of molecularly thin films with gold substrates

1990 ◽  
Vol 41 (6) ◽  
pp. 3466-3472 ◽  
Author(s):  
E. T. Watts ◽  
J. Krim ◽  
A. Widom
Keyword(s):  
Thin Films ◽  
Experimental Observation ◽  
Gold Substrates ◽  
Interfacial Slippage

Nanoporous Thin Films Formed from Photocleavable Diblock Copolymers on Gold Substrates Modified with Thiolate Self-Assembled Monolayers

Langmuir ◽  
2020 ◽  
Vol 36 (31) ◽  
pp. 9259-9268 ◽  
Author(s):  
Takashi Ito ◽  
Herman Coceancigh ◽  
Yi Yi ◽  
Jay N. Sharma ◽  
Fred C. Parks ◽  
...  
Keyword(s):  
Thin Films ◽  
Diblock Copolymers ◽  
Self Assembled Monolayers ◽  
Gold Substrates ◽  
Assembled Monolayers ◽  
Self Assembled

scholarly journals Orientation transitions during the growth of imine covalent organic framework thin films

2017 ◽  
Vol 5 (21) ◽  
pp. 5090-5095 ◽  
Author(s):  
H. Wang ◽  
B. He ◽  
F. Liu ◽  
C. Stevens ◽  
M. A. Brady ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Experimental Observation ◽  
Growth Kinetic ◽  
Film Growth ◽  
Nucleation And Growth ◽  
Thin Film Growth ◽  
Covalent Organic Framework ◽  
Kinetic Processes ◽  
Organic Framework

The first experimental observation of a rare re-entrant transition during COF thin film growth reveals independent nucleation and growth kinetic processes.

Comparison study of evaporated thiacalix[4]arene thin films on gold substrates as copper ion sensing

2006 ◽  
Vol 495 (1-2) ◽  
pp. 368-371 ◽  
Author(s):  
M. Ben Ali ◽  
R. Ben Chabanne ◽  
F. Vocanson ◽  
C. Dridi ◽  
N. Jaffrezic ◽  
...  
Keyword(s):  
Thin Films ◽  
Copper Ion ◽  
Comparison Study ◽  
Ion Sensing ◽  
Gold Substrates

Fabrication of Mesoporous Silica Thin Film Platforms for Surface Reaction with Surface Plasmon Resonance

2017 ◽  
Vol 758 ◽  
pp. 24-28 ◽  
Author(s):  
Sota Ushijima ◽  
Toshiyuki Ikoma
Keyword(s):  
Thin Films ◽  
Surface Plasmon Resonance ◽  
Mesoporous Silica ◽  
Cationic Surfactant ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Surface Reaction ◽  
Sol Gel ◽  
Silica Thin Films ◽  
Gold Substrates

Mesoporous silica thin films were fabricated on gold substrates with a sol-gel method including a cationic surfactant. The interface of gold and silica thin films was fixed with a mercaptosilane. The surface roughness of the thin films and their grain sizes of silica were both increased with the elimination of the cationic surfactant and polyethylene glycol (PEG) modification on its surface. The surface reaction, adsorption of bovine serum albumin (BSA), was monitored with surface plasmon resonance (SPR). Although the adsorption amount of BSA at 1 mg/mL were 7.9 ng/cm2 on the mesoporous silica, the PEG modification can completely desorb BSA. The mesoporous silica thin films on gold substrates fabricated will be a good platform for analyzing surface reaction.

scholarly journals Tuning Nanoscale Friction by Applying Weak Magnetic Fields to Reorient Adsorbed Oxygen Molecules

2018 ◽  
Vol 4 (1) ◽  
pp. 1 ◽  
Author(s):  
Z. Fredricks ◽  
K. Stevens ◽  
S. Kenny ◽  
B. Acharya ◽  
J. Krim
Keyword(s):  
Magnetic Field ◽  
Thin Films ◽  
Weak Magnetic Field ◽  
Quartz Crystal ◽  
Sliding Friction ◽  
Model Systems ◽  
Theoretical Studies ◽  
Weak Magnetic Fields ◽  
Gold Substrates

Sliding friction levels of thin (1–2 monolayers) and thick (~10 monolayers) oxygen films adsorbed on nickel and gold at 47.5 K have been measured by means of a quartz crystal microbalance (QCM) technique. Friction levels for the thin (thick) films on nickel in the presence of a weak magnetic field were observed to be approximately 30% (50%) lower than those recorded in the absence of the external field. Friction levels for thin films on gold were meanwhile observed to be substantially increased in the presence of the field. Magnetically-induced structural reorientation (magnetostriction) and/or realignment of adlayer spins, which respectively reduce structural and magnetic interfacial corrugation and commensurability, appear likely mechanisms underlying the observed field-induced reductions in friction for the nickel samples. Eddy current formation in the gold substrates may account for the increased friction levels in this system. The work demonstrates the role of magnetic effects in model systems that are highly amenable to theoretical studies and modeling.

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