ToF-SIMS characterization of hybridization onto self-assembled single-stranded DNA monolayers

2004 ◽  
Vol 231-232 ◽  
pp. 397-401 ◽  
Author(s):  
N.T. Samuel ◽  
D.G. Castner
Keyword(s):  
Single Stranded Dna ◽  
Dna Monolayers ◽  
Tof Sims ◽  
Self Assembled

Electrical characterization of self-assembled single- and double-stranded DNA monolayers using conductive AFM

2006 ◽  
Vol 131 ◽  
pp. 367-376 ◽  
Author(s):  
Hezy Cohen ◽  
Claude Nogues ◽  
Daniela Ullien ◽  
Shirley Daube ◽  
Ron Naaman ◽  
...  
Keyword(s):  
Electrical Characterization ◽  
Conductive Afm ◽  
Dna Monolayers ◽  
Double Stranded Dna ◽  
Self Assembled

scholarly journals TOF-SIMS surface analysis of L-Tryptophan self assembled monolayer

2014 ◽  
Vol 12 (5) ◽  
pp. 568-576
Author(s):  
Marian Petrovic ◽  
Ivan Talian ◽  
Lenka Skantarova ◽  
Andrej Orinak ◽  
Dusan Velic
Keyword(s):  
Surface Analysis ◽  
Three Dimensional ◽  
Chemical Properties ◽  
Dimensional Structure ◽  
Mercaptoacetic Acid ◽  
Self Assembled Monolayer ◽  
Silver Nanostructure ◽  
Tof Sims ◽  
Self Assembled

AbstractThis paper dealt with the preparation and characterization of self — assembled monolayersSAM-s of 1-hexadecanethiole and mercapto acetic acid on the silver nanostructure and subsequently the immobilization with amino acid L-Tryptophane. In order to achieve it, we used the electrodeposition of silver onto nanostructured surface of paraffin impregnated graphite electrode (PIGE). Subsequently, we assembled SAM by choosing the 1-hexadecanethiole and mercaptoacetic acid. These two kinds of SAM underwent the functionalization by L-Tryptophan. The observations of silver on PIGE surfaces were performed by scanning electron microscope (SEM). For surface analysis of the SAM functionalized by L-tryphophan, the TOF-SIMS technique was chosen. Finally, the fragmented ions of the immobilized-L-Tryptophan SAM were determined on the basis of suggested residues and three-dimensional structure. The residues show that the ability of L-Tryptophan to build homogeneous structure is better by mercaptoacetic acid SAM structure than by 1-hexadecanethiol. It was observed that L-Tryptophan built compact surface, which, due its chemical properties, can represent very interesting side regarding biocompatibility, homochirality and robustness in the area of life science.

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

Preparation and Characterization of Different Self-Assembled Porphyrin Monolayers

2013 ◽  
Vol 30 (3) ◽  
pp. 343
Author(s):  
Jiandong YANG ◽  
Duliu WANG ◽  
Xiaoquan LU
Keyword(s):  
Self Assembled

scholarly journals Synthesis and Characterization of a Bioconjugate Based on Oleic Acid and L-Cysteine

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1791
Author(s):  
Marco Vizcarra-Pacheco ◽  
María Ley-Flores ◽  
Ana Mizrahim Matrecitos-Burruel ◽  
Ricardo López-Esparza ◽  
Daniel Fernández-Quiroz ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Materials Science ◽  
Critical Micellar Concentration ◽  
Synthesis And Characterization ◽  
New Materials ◽  
Visible Spectroscopy ◽  
Amide Bonds ◽  
Transmission Electron ◽  
Self Assembled

One of the main challenges facing materials science today is the synthesis of new biodegradable and biocompatible materials capable of improving existing ones. This work focused on the synthesis of new biomaterials from the bioconjugation of oleic acid with L-cysteine using carbodiimide. The resulting reaction leads to amide bonds between the carboxylic acid of oleic acid and the primary amine of L-cysteine. The formation of the bioconjugate was corroborated by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and nuclear magnetic resonance (NMR). In these techniques, the development of new materials with marked differences with the precursors was confirmed. Furthermore, NMR has elucidated a surfactant structure, with a hydrophilic part and a hydrophobic section. Ultraviolet-visible spectroscopy (UV-Vis) was used to determine the critical micellar concentration (CMC) of the bioconjugate. Subsequently, light diffraction (DLS) was used to analyze the size of the resulting self-assembled structures. Finally, transmission electron microscopy (TEM) was obtained, where the shape and size of the self-assembled structures were appreciated.

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