Formation, Characterization, and Applications of Organic and Inorganic Nanometric Films

Mandler, Daniel

doi:10.1002/ijch.201000028

Cited by 6 publications

(4 citation statements)

References 48 publications

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“…DFO has been anchored to the gold surface as a self-assembled monolayer (SAM) affording a DFO-SAM-modified interface [7]. This configuration should make possible the development of a new, simple and low cost sensor for Fe(III) taking advantage of the complexation of Fe(III) with DFO.…”

Section: Introductionmentioning

confidence: 99%

“…In this work, we present a sensor for Fe(III) with optical transduction based on the surface plasmon resonance phenomenon excited at the interface of a dielectric layer and a gold film, exploiting a multimode Plastic Optical Fiber (POF) as the light guiding structure (see Figure 1 ). DFO has been anchored to the gold surface as a self-assembled monolayer (SAM) affording a DFO-SAM-modified interface [ 7 ]. This configuration should make possible the development of a new, simple and low cost sensor for Fe(III) taking advantage of the complexation of Fe(III) with DFO.…”

Section: Introductionmentioning

confidence: 99%

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A Simple Small Size and Low Cost Sensor Based on Surface Plasmon Resonance for Selective Detection of Fe(III)

Cennamo

Alberti

Pesavento

et al. 2014

Sensors

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A simple, small size, and low cost sensor based on a Deferoxamine Self Assembled Monolayer (DFO-SAM) and Surface Plasmon Resonance (SPR) transduction, in connection with a Plastic Optical Fiber (POF), has been developed for the selective detection of Fe(III). DFO-SAM sensors based on appropriate electrochemical techniques can be frequently found in the scientific literature. In this work, we present the first example of a DFO-SAM sensor based on SPR in an optical fiber. The SPR sensing platform was realized by removing the cladding of a plastic optical fiber along half the circumference, spin coating a buffer of Microposit S1813 photoresist on the exposed core, and finally sputtering a thin gold film. The hydroxamate siderophore deferoxamine (DFO), having high binding affinity for Fe(III), is then used in its immobilized form, as self-assembled monolayer on the gold layer surface of the POF sensor. The results showed that the DFO-SAM-POF-sensor was able to sense the formation of the Fe(III)/DFO complex in the range of concentrations between 1 μm and 50 μm with a linearity range from 0 to 30 μm of Fe(III). The selectivity of the sensor was also proved by interference tests.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Simple Small Size and Low Cost Sensor Based on Surface Plasmon Resonance for Selective Detection of Fe(III)

Cennamo

Alberti

Pesavento

et al. 2014

Sensors

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“…Chemical immobilization of the reaction system on the surface modified with nanometric thin-film self-assembled monolayer (SAM) platforms has several advantages , such as high resolution and reproducible (electrochemical or spectrochemical analytical) signals. , The thiol SAMs are among the most popular thin films used as platforms for functionalization of the gold electrode surface because they can be easily prepared on gold to form high-quality close-packed organic layers of controlled thickness and functionality. − Thus, the technique has been used to keep the molecular system in a well-organized form and resolve basic evidences to explain the reactions of biological or industrial importance . Comprehensive analysis of the complex chemical and biochemical reactions via immobilization of the related molecular systems on the solid surfaces has provided an unprecedented level of details about the process and the structure of the immobilized molecules and their behavior. ,,, …”

Section: Introductionmentioning

confidence: 93%

“…Chemical immobilization of the reaction system on the surface modified with nanometric thin-film self-assembled monolayer (SAM) platforms 49 has several advantages 50,51 such as high resolution and reproducible (electrochemical or spectrochemical analytical) signals. 52,53 The thiol SAMs are among the most popular thin films used as platforms for functionalization of the gold electrode surface because they can be easily prepared on gold to form high-quality close-packed organic layers of controlled thickness and functionality.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical Properties of Nanostructured Complexes Formed between Deferrioxamine Siderophore and Zr(IV), Hf(IV), or Fe(III) Metal Ions at the Gold Electrode/Solution Interface: A Comparative Study

et al. 2019

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Physicochemical properties of the nanostructured complex systems, formed between the deferrioxamine B (DFO) siderophore ligand and Zr(IV), Hf(IV), or Fe(III) metal ions at the gold−thiol electrode surface, are determined by different surface, electrochemical, and solution techniques, and the systems are characterized. The results obtained from separate experiments show that the DFO can accumulate and complex the M ions [M: Fe(III), Hf(IV), or Zr(IV)] on the gold−mercaptopropionic acid (Au−MPA) surface efficiently but with different affinities as Zr(IV) > Hf(IV) > Fe(III), leading to different surface morphologies and organizations, and structural diversity of the Au−MPA−DFO−M complexes as Fe(III) > Hf(IV) > Zr(IV). Furthermore, the Fe(III) ions of the Au−MPA−DFO−Fe(III) surface are replaced rapidly by both Hf(IV) and Zr(IV) ions but with different kinetics; the replacement of Zr( IV) is ∼three times faster than that of Hf(IV) at highly acidic solution. Thus, the DFO can be used to identify and differentiate the behaviors of these important heavy metal ions. To our knowledge, this is one of the few cases in which Hf(IV) and Zr(IV) ions show different behaviors. The results of this study are important and can improve our physicochemical insights into the behavior of these ions in conjunction with siderophores, regarding the natural and industrial environments, metal refinery and nuclear power plants, human biological systems, soil contamination, agricultural products, and foods.

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Sol-Gel-Derived Silicate-Based Composite Electrode

Lev¹,

Rizkov²,

Mizrahi³

et al. 2017

Handbook of Sol-Gel Science and Technology

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Formation, Characterization, and Applications of Organic and Inorganic Nanometric Films

Cited by 6 publications

References 48 publications

A Simple Small Size and Low Cost Sensor Based on Surface Plasmon Resonance for Selective Detection of Fe(III)

A Simple Small Size and Low Cost Sensor Based on Surface Plasmon Resonance for Selective Detection of Fe(III)

Physicochemical Properties of Nanostructured Complexes Formed between Deferrioxamine Siderophore and Zr(IV), Hf(IV), or Fe(III) Metal Ions at the Gold Electrode/Solution Interface: A Comparative Study

Sol-Gel-Derived Silicate-Based Composite Electrode

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