Coating a DNA self-assembled monolayer with a metal organic framework-based exoskeleton for improved sensing performance

The Analyst ◽  
2019 ◽  
Vol 144 (11) ◽  
pp. 3539-3545 ◽  
Author(s):  
Jiehua Ma ◽  
Wenxin Chai ◽  
Jianyang Lu ◽  
Tian Tian ◽  
Shuai Wu ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Self Assembled Monolayers ◽  
Self Assembled Monolayer ◽  
New Strategy ◽  
Assembled Monolayers ◽  
Metal Organic ◽  
Self Assembled ◽  
Poor Stability ◽  
Sensing Performance ◽  
Organic Framework

The relatively poor stability of DNA self-assembled monolayers (SAMs) greatly limits their use in real applications. A new strategy is reported to protect the DNA SAMs by using a metal organic framework (MOF)-based exoskeleton.

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.

Oriented growth of the functionalized metal–organic framework CAU-1 on –OH- and –COOH-terminated self-assembled monolayers

2010 ◽  
Vol 12 (17) ◽  
pp. 4515 ◽  
Author(s):  
Florian Hinterholzinger ◽  
Camilla Scherb ◽  
Tim Ahnfeldt ◽  
Norbert Stock ◽  
Thomas Bein
Keyword(s):  
Metal Organic Framework ◽  
Self Assembled Monolayers ◽  
Oriented Growth ◽  
Assembled Monolayers ◽  
Metal Organic ◽  
Self Assembled ◽  
Organic Framework

scholarly journals Correction: Organic guest molecule induced ultrafast breathing of an epitaxially grown metal–organic framework on a self-assembled monolayer

2021 ◽  
Author(s):  
Purna Chandra Rao ◽  
Prabu Mani ◽  
Younghu Son ◽  
Jiyun Kim ◽  
Minyoung Yoon
Keyword(s):  
Guest Molecule ◽  
Metal Organic Framework ◽  
Self Assembled Monolayer ◽  
Metal Organic ◽  
Self Assembled ◽  
Organic Framework

Correction for ‘Organic guest molecule induced ultrafast breathing of an epitaxially grown metal–organic framework on a self-assembled monolayer’ by Purna Chandra Rao et al., Chem. Commun., 2021, DOI: 10.1039/d1cc03721h.

CURRENT-VOLTAGE CHARACTERIZATION OF ALKANETHIOL SELF-ASSEMBLED MONOLAYERS IN METAL NANOWIRES

2002 ◽  
Vol 16 (05n06) ◽  
pp. 161-169 ◽  
Author(s):  
IRENA KRATOCHVÍLOVÁ ◽  
ADRIANA ZAMBOVA ◽  
JEREMIAH MBINDYO ◽  
BAHARAK RAZAVI ◽  
JOSEF HOLAKOVSKÝ
Keyword(s):  
Electrical Characterization ◽  
Self Assembled Monolayers ◽  
Metal Nanowires ◽  
Published Data ◽  
Self Assembled Monolayer ◽  
Current Voltage ◽  
Assembled Monolayers ◽  
Metal Organic ◽  
Self Assembled

An electric-field assisted assembly has been used to place rod-shaped, metal-organic, molecule-metal nanowires onto lithographically defined metal pads allowing the electrical characterization of metal-molecule self-assembled monolayer-metal containing nanowires. Our results show that the parameters of metal-molecule metal junctions are close to previously published data, so we have constructed systems containing insulating monolayers with reasonable properties.

An Organic Guest Molecule Induced Ultrafast Breathing of Epitaxially Grown Metal-Organic Framework on Self-Assembled Monolayer

2021 ◽  
Author(s):  
Purna Chandra Rao ◽  
Mani Prabu ◽  
Younghu Son ◽  
Jiyun Kim ◽  
Minyoung Yoon
Keyword(s):  
Thin Films ◽  
Guest Molecule ◽  
Metal Organic Framework ◽  
Layer By Layer ◽  
Epitaxial Thin Films ◽  
Two Dimensional ◽  
Self Assembled Monolayer ◽  
Metal Organic ◽  
Self Assembled ◽  
Organic Framework

We report epitaxially grown new two-dimensional metal-organic framework (MOF) thin films on self-assembled monolayer (SAM). We fabricated these epitaxial thin-films using the stepwise layer-by-layer seeding followed by solvothermal treatment. The...

Hollow Fe2O3/Co3O4 microcubes derived from metal-organic framework for enhanced sensing performance towards acetone

2021 ◽  
Author(s):  
Ruixue Mo ◽  
Dongqiang Han ◽  
Zeng Ren ◽  
Dazhuang Yang ◽  
Fei Wang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic ◽  
Sensing Performance ◽  
Organic Framework

Laser Polishing of Cold Work Steel AISI D2 for Dry Metal Forming Tools: Surface Homogenization, Refinement and Preparation for Self-Assembled Monolayers

2018 ◽  
Vol 767 ◽  
pp. 69-76 ◽  
Author(s):  
Ingo Ross ◽  
André Temmler ◽  
Moritz Küpper ◽  
Stephan Prünte ◽  
Marco Teller ◽  
...  
Keyword(s):  
Cold Extrusion ◽  
Self Assembled Monolayers ◽  
Homogeneous Distribution ◽  
Self Assembled Monolayer ◽  
Pulsed Laser Radiation ◽  
Laser Polishing ◽  
Assembled Monolayers ◽  
Aisi D2 ◽  
Self Assembled ◽  
Forming Tools

Liquid lubrication guarantees high precision and surface quality of workpieces in industrial forming processes. In the case of aluminum cold extrusion, wear and cold welding due to direct contact of tool and workpiece are usually prevented by the extensive use of lubricants. Since the use of lubricants is economically and ecologically unfavorable, surface treatments of tools by, e.g. laser polishing and/or coatings are in the focus of current investigations to substitute these lubricants and establish so called “dry metal forming” processes. The material AISI D2, a ledeburitic 12% chromium steel which is known to have a significant amount of chromium carbide precipitations, is widely used in cold extrusion for forming tools. The large fraction of chromium carbide precipitations, however, hinder the formation of a dense self-assembled monolayer (SAM) that is necessary to avoid direct contact of reactive aluminum with surface oxides of the tool. Therefore, a homogeneous distribution of the chemical elements with a smaller fraction or no chromium carbides in the steel matrix, particularly in the tool surface, is aimed for. Using laser polishing, the surface layer is molten by continuous or pulsed laser radiation. Within the melt pool, the elementary distribution is homogenized as a result of thermal convection and diffusion processes, as well as a smoothed surface and a grain refinement are achieved. Consequently, the effects of the surface treatment by laser polishing on the area coverage of self-assembled monolayers are investigated. Thus, a combined surface treatment by laser polishing and functionalization with a dense self-assembled monolayer shall reduce overall adhesive wear. For this investigation, several specimens of conventional manufactured and powder metallurgical molten AISI D2 are laser polished using continuous or pulsed laser radiation or a combination of both. The resulting surfaces are investigated by microscopy and spectroscopic techniques to analyze the surface topography and the elemental distribution near to the surface. These results are compared to those of conventionally hand-polished specimens. Furthermore, the influence of the element homogenization and grain refinement on the area coverage of self-assembled monolayers is explored. First results show that laser polishing of AISI D2 is suitable to achieve a reduction of grain size and a more homogeneous distribution of chromium carbides within the surface layer.

Spectral and cyclic voltammetric characterization of self-assembled monolayers on gold of pyrene end-labeled oligonucleotide duplexes

1999 ◽  
Vol 77 (5-6) ◽  
pp. 1077-1084 ◽  
Author(s):  
R Scott Reese ◽  
Marye Anne Fox
Keyword(s):  
Gold Surface ◽  
Self Assembled Monolayers ◽  
Self Assembled Monolayer ◽  
Surface Emission ◽  
Assembled Monolayers ◽  
Oligonucleotide Duplex ◽  
Self Assembled ◽  
Duplex Formation

Self-assembled monolayers of sulfur-terminated oligonucleotide duplexes were formed on flat gold surfaces, either by exposure of a self-assembled monolayer bearing one oligonucleotide strand to the complementary strand or by preformation of a oligonucleotide duplex that was then deposited on a fresh gold surface. Virtually identical spectral behavior was observed whether the duplex was produced before deposition or by in situ complementary association. With a duplex bearing an appropriate pyrene end-label, the resulting thin film was photoresponsive. Surface emission measurements show no evidence for pyrene aggregation on the modified surfaces. The polarity of the photocurrent, reflecting photoinduced electron transfer initiated by photoexcitation of pyrene, is opposite that expected from the oligonucleotide-mediated reduction of the appended pyrene excited state.Key words: oligonucleotide, self-assembled monolayer, duplex formation, photoelectrochemistry, surface emission.

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