Preconditioning Gold Substrates Influences Organothiol Self-assembled Monolayer (SAM) Formation

2001 ◽  
Vol 238 (2) ◽  
pp. 259-266 ◽  
Author(s):  
Meng-Yen Tsai ◽  
Jui-Che Lin
Keyword(s):  
Self Assembled Monolayer ◽  
Gold Substrates ◽  
Self Assembled

scholarly journals The Nature of Alkanethiol Self-Assembled Monolayer Adsorption on Sputtered Gold Substrates

Langmuir ◽  
2005 ◽  
Vol 21 (4) ◽  
pp. 1661-1661 ◽  
Author(s):  
C. O'Dwyer ◽  
G. Gay ◽  
B. Viaris de Lesegno ◽  
J. Weiner
Keyword(s):  
Self Assembled Monolayer ◽  
Monolayer Adsorption ◽  
Gold Substrates ◽  
Self Assembled

scholarly journals Construction and Characterizations of Antibacterial Surfaces Based on Self-Assembled Monolayer of Antimicrobial Peptides (Pac-525) Derivatives on Gold

Coatings ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1014
Author(s):  
Zijiao Zhang ◽  
Ni Kou ◽  
Weilong Ye ◽  
Shuo Wang ◽  
Jiaju Lu ◽  
...  
Keyword(s):  
Antimicrobial Peptides ◽  
Self Assembly ◽  
The Self ◽  
Self Assembled Monolayer ◽  
E Coli ◽  
Antimicrobial Efficiency ◽  
Gold Substrates ◽  
Self Assembled ◽  
Antibacterial Surfaces

Background: Infection that is related to implanted biomaterials is a serious issue in the clinic. Antimicrobial peptides (AMPs) have been considered as an ideal alternative to traditional antibiotic drugs, for the treatment of infections, while some problems, such as aggregation and protein hydrolysis, are still the dominant concerns that compromise their antimicrobial efficiency in vivo. Methods: In this study, antimicrobial peptides underwent self-assembly on gold substrates, forming good antibacterial surfaces, with stable antibacterial behavior. The antimicrobial ability of AMPs grafted on the surfaces, with or without glycine spaces or a primer layer, was evaluated. Results: Specifically, three Pac-525 derivatives, namely, Ac-CGn-KWRRWVRWI-NH2 (n = 0, 2, or 6) were covalently grafted onto gold substrates via the self-assembling process for inhibiting the growth of Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). Furthermore, the alkanethiols HS(CH)10SH were firstly self-assembled into monolayers, as a primer layer (SAM-SH) for the secondary self-assembly of Pac-525 derivatives, to effectively enhance the bactericidal performance of the grafted AMPs. The -(CH)10-S-S-G6Pac derivative was highly effective against S. aureus and E. coli, and reduced the viable amount of E. coli and S. aureus to 0.4% and 33.2%, respectively, after 24 h of contact. In addition, the immobilized AMPs showed good biocompatibility, promoting bone marrow stem cell proliferation. Conclusion: the self-assembled monolayers of the Pac-525 derivatives have great potential as a novel therapeutic method for the treatment of implanted biomaterial infections.

scholarly journals Synthesis of a surface mounted metal–organic framework on gold using a Au–carbene self-assembled monolayer linkage

2019 ◽  
Vol 3 (4) ◽  
pp. 636-639 ◽  
Author(s):  
Esther Frederick ◽  
Travis W. Shaw ◽  
Matthew G. Frith ◽  
Steven L. Bernasek
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Self Assembled Monolayers ◽  
Self Assembled Monolayer ◽  
Stable Surface ◽  
Gold Substrates ◽  
Assembled Monolayers ◽  
Metal Organic ◽  
Self Assembled ◽  
Organic Framework

Carbene based self-assembled monolayers are demonstrated to be effective supports for forming highly stable surface-mounted metal–organic frameworks on gold substrates.

Solvatochromism of a Merocyanine Derivative in a Self-Assembled Monolayer on Gold Substrates

Langmuir ◽  
1998 ◽  
Vol 14 (26) ◽  
pp. 7456-7462 ◽  
Author(s):  
Katsuhiko Fujita ◽  
Masahiko Hara ◽  
Hiroyuki Sasabe ◽  
Wolfgang Knoll ◽  
Kazuma Tsuboi ◽  
...  
Keyword(s):  
Self Assembled Monolayer ◽  
Gold Substrates ◽  
Self Assembled

Surface-Conditioning Effect of Gold Substrates on Octadecanethiol Self-Assembled Monolayer Growth

Langmuir ◽  
1997 ◽  
Vol 13 (17) ◽  
pp. 4638-4643 ◽  
Author(s):  
Takao Ishida ◽  
Satoshi Tsuneda ◽  
Naoki Nishida ◽  
Masahiko Hara ◽  
Hiroyuki Sasabe ◽  
...  
Keyword(s):  
Self Assembled Monolayer ◽  
Surface Conditioning ◽  
Gold Substrates ◽  
Monolayer Growth ◽  
Conditioning Effect ◽  
Self Assembled

Calixarene Molecules Immobilized on Gold Substrates of QCM Sensors Based on Self-Assembled Monolayer Technology

2011 ◽  
Vol 239-242 ◽  
pp. 2054-2057 ◽  
Author(s):  
Yu Cao ◽  
Zhong Cao ◽  
Jiao Yun Xia ◽  
Ju Lan Zeng ◽  
Li Xian Sun
Keyword(s):  
Living Environment ◽  
Self Assembled Monolayer ◽  
Supramolecular Compounds ◽  
Methanol Vapor ◽  
Response Characteristics ◽  
Best Response ◽  
Examination Result ◽  
Shift Response ◽  
Gold Substrates ◽  
Self Assembled

Four calixarene supramolecular compounds, RCT, PCT, MRCT, and TBCA as active materials, were immobilized on gold substrates of quartz crystal microbalance (QCM) sensors by using L-cysteine self-assembled monolayer (SAM) as a linker. The RCT immobilized QCM sensor possessed the best response characteristics for methanol molecule when the assembling concentration of RCT reached 1.0 mg/mL. The frequency shift response value of the RCT immobilized QCM sensor was in direct proportion to the concentration of methanol vapor with a range of 0 ~ 6000 ppm. Comparing with a gas chromatography, the proposed QCM sensor could be well used for the determination of methanol vapor with a recovery rate of 98.01 ~ 103.9 %, and the two methods showed a well consistent examination result. Also, the sensor possessed good reproducibility and stability, showing that the RCT immobilized QCM sensor can be applied for the detection of the methanol vapor of atmospheric polutants in our living environment.

The Nature of Alkanethiol Self-Assembled Monolayer Adsorption on Sputtered Gold Substrates

Langmuir ◽  
2004 ◽  
Vol 20 (19) ◽  
pp. 8172-8182 ◽  
Author(s):  
C. O'Dwyer ◽  
G. Gay ◽  
B. Viaris de Lesegno ◽  
J. Weiner
Keyword(s):  
Self Assembled Monolayer ◽  
Monolayer Adsorption ◽  
Gold Substrates ◽  
Self Assembled
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