Surface Reactions On Demand: Electrochemical Control of SAM‐Based Reactions

Choi, Insung S.; Shik, Young

doi:10.1002/anie.200601502

Cited by 48 publications

(44 citation statements)

References 33 publications

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“…Since the discovery of spontaneous alkenethiolate molecular film formation on gold by Nuzzo and Allara [4], the ability to form self-assembled monolayers on a variety of metal surfaces, and thereby to tailor their interfacial properties, has found widespread and powerful applications [5][6][7][8][9][10]. This surface chemistry can facilitate further modification in the generation of chemically or biologically reactive surface layers [3,11], and is thus a powerful one in chemical or biological sensing.…”

Section: Introductionmentioning

confidence: 99%

An optimised electrode pre-treatment for SAM formation on polycrystalline gold

Tkac

Davis

2008

Journal of Electroanalytical Chemistry

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Section: Introductionmentioning

confidence: 99%

An optimised electrode pre-treatment for SAM formation on polycrystalline gold

Tkac

Davis

2008

Journal of Electroanalytical Chemistry

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“…This reaction can either be electrically controlled via in situ electroreduction of Cu 2+ to Cu 1+ (ref. 23 ), or using a solution-based reducing agent, as described in the Supplementary Method 3 . Thus, single-stranded DNA containing an azide group, ssDNA azide , can only react with the ring resonator functionalized with alkyne groups, and single-stranded DNA containing an alkyne moiety, ssDNA alkyne , can only react with the azide-modified ring resonator.…”

Section: Resultsmentioning

confidence: 99%

The electrophotonic silicon biosensor

et al. 2016

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The emergence of personalized and stratified medicine requires label-free, low-cost diagnostic technology capable of monitoring multiple disease biomarkers in parallel. Silicon photonic biosensors combine high-sensitivity analysis with scalable, low-cost manufacturing, but they tend to measure only a single biomarker and provide no information about their (bio)chemical activity. Here we introduce an electrochemical silicon photonic sensor capable of highly sensitive and multiparameter profiling of biomarkers. Our electrophotonic technology consists of microring resonators optimally n-doped to support high Q resonances alongside electrochemical processes in situ. The inclusion of electrochemical control enables site-selective immobilization of different biomolecules on individual microrings within a sensor array. The combination of photonic and electrochemical characterization also provides additional quantitative information and unique insight into chemical reactivity that is unavailable with photonic detection alone. By exploiting both the photonic and the electrical properties of silicon, the sensor opens new modalities for sensing on the microscale.

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“…Electroclicking ferrocene on SAMs [342] allowed electrochemical sensing of Cu(II) ions in water and dairy products down to low concentrations of 10 −14 M [343]. However, this strategy relies on S-Au bonds for grafting onto the surface which tend to oxidize in air and other media, and also only allow for a narrow potential stability window.…”

Section: Electroclick On Monolayersmentioning

confidence: 98%

Electrochemical nanoarchitectonics and layer-by-layer assembly: From basics to future

et al. 2015

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No. of Pages 30 2 G. Rydzek et al. SummaryDuring the last few decades, electrochemistry and electrode modification have seen a tremendous fall off in creativity with the emergence of the nanoarchitectonic-based layerby-layer (LbL) film deposition technique. An unprecedented variety of building blocks can be immobilized on surfaces, leading to progress in several fields including sensing, electrochromic, electro-responsive and energy devices. This review describes the state of the art of electrochemical devices based on LbL assemblies, with a focus on supercapacitors, biosensors, and electroresponsive LbL such as electrodissolution/electroswelling of coatings. Recently, electrochemistry has also been used as an ''active trigger'' to induce the formation of films by covalent coupling, leading to new nanoarchitectonic approaches beyond the LbL strategy. These emerging electro-coupling reactions, including electroclick and carbazole chemistry, open new perspectives toward architecture and patterning of functional films and are extensively reviewed.

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Surface Reactions On Demand: Electrochemical Control of SAM‐Based Reactions

Cited by 48 publications

References 33 publications

An optimised electrode pre-treatment for SAM formation on polycrystalline gold

An optimised electrode pre-treatment for SAM formation on polycrystalline gold

The electrophotonic silicon biosensor

Electrochemical nanoarchitectonics and layer-by-layer assembly: From basics to future

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