Selective Nanotrench Filling by One-Pot Electroclick Self-Constructed Nanoparticle Films

Rydzek, Gaulthier; Toulemon, Delphine; Garofalo, Antonio; Leuvrey, Cédric; Dayen, Jean‐François; Felder‐Flesch, Delphine; Schaaf, Pierre; Jierry, Loı̈c; Pichon, Benoît P.; Boulmedais, Fouzia

doi:10.1002/smll.201500639

Cited by 18 publications

(31 citation statements)

References 45 publications

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“…23 Electro-click chemistry is now a recognized method for achieving a spatially confined covalent reaction between both organic and inorganic functional building blocks, resulting in the formation of engineered interfaces. 28,[33][34][35][36] The concept introduced here is based on the assembly of Hybridosome nanocapsules into covalent coatings by using the electro-click approach, while preserving the remarkable features of Hybridosomes. A 6% alkyne functionalized polyacrylic acid (PAA-C≡CH) (synthesis and characterization of functional polymers is described in Schemes S-1, S-2 and Figure S-2) was used to decorate Hybridosomes with click-suitable moieties.…”

Section: Resultsmentioning

confidence: 99%

Electro-click construction of hybrid nanocapsule films with triggered delivery properties

Sciortino

Rydzek

Grasset

et al. 2018

Phys. Chem. Chem. Phys.

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Hollow nanocapsules (named Hybridosomes®) possessing a polymer/nanoparticle shell were used to covalently construct hybrid films in a one-pot fashion. The alkyne bearing organic/inorganic Hybridosomes® were reticulated with azide bearing homobifunctional polyethyleneglycol (PEG) linkers, by using an electro-click reaction on F-SnO (FTO) electrodes. The coatings were obtained by promoting the Cu(i)-catalyzed click reaction between alkyne and azide moieties in the vicinity of the electrode by the electrochemical generation of Cu(i) ions. The physicochemical properties of the covalently reticulated hybrid films obtained were studied by SEM, AFM, UV-vis and fluorescence spectroscopy. The one-pot covalent click reaction between the nanocapsules and the PEG linkers in the film did not affect the desirable features of the Hybridosomes® i.e. their hollow nanostructure their chemical versatility and their pH-sensitivity. Consequently, both the composition and the cargo-loading of the Hybridosomes® films could be tuned, demonstrating the versatility of these hybrid coatings. For example, the Hybridosome® films were used to encapsulate and release a bodipy fluorescent probe in response to either a pH drop or the application of an oxidative +1 V potential (vs. Ag/AgCl) at the substrate. By advancing the field of electro-synthesized films a step further toward the design of complex physicochemical interfaces, these results open perspectives for multifunctional coatings where chemical versatility, controllable stability and a hollow nanostructure are required.

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Section: Resultsmentioning

confidence: 99%

Electro-click construction of hybrid nanocapsule films with triggered delivery properties

Sciortino

Rydzek

Grasset

et al. 2018

Phys. Chem. Chem. Phys.

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“…The electrodeposition of clickable iron oxide NPs allows the selective filling of high aspect ratio nanodevices establishing an electrical connection between two gold electrodes separated by a 100 nm-wide nanotrench (Figure ). Integration of covalent NP films into nanodevices opens the route for biosensing and granular electronic devices. Simultaneous electropolymerization and electroclick functionalization (SEEC) of poly(aniline) was developed using clickable aniline monomers by application of a cyclic voltammetry (from −0.6 to +0.9 V vs Ag/AgCl) .…”

Section: Electrochemical Deposition Through Covalent Bond Formationmentioning

confidence: 99%

“…SEM micrographs of a 100 nm-wide nanotrench (b) before and (c) after filling by iron oxide NPs (20 nm in diameter) after 120 min of CV. Reproduced with permission from ref . Copyright 2015 John Wiley and Sons.…”

Section: Electrochemical Deposition Through Covalent Bond Formationmentioning

confidence: 99%

Review of Electrochemically Triggered Macromolecular Film Buildup Processes and Their Biomedical Applications

Maerten

Jierry

Schaaf

et al. 2017

ACS Appl. Mater. Interfaces

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Macromolecular coatings play an important role in many technological areas, ranging from the car industry to biosensors. Among the different coating technologies, electrochemically triggered processes are extremely powerful because they allow in particular spatial confinement of the film buildup up to the micrometer scale on microelectrodes. Here, we review the latest advances in the field of electrochemically triggered macromolecular film buildup processes performed in aqueous solutions. All these processes will be discussed and related to their several applications such as corrosion prevention, biosensors, antimicrobial coatings, drug-release, barrier properties and cell encapsulation. Special emphasis will be put on applications in the rapidly growing field of biosensors. Using polymers or proteins, the electrochemical buildup of the films can result from a local change of macromolecules solubility, self-assembly of polyelectrolytes through electrostatic/ionic interactions or covalent cross-linking between different macromolecules. The assembly process can be in one step or performed step-by-step based on an electrical trigger affecting directly the interacting macromolecules or generating ionic species.

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“…Electrochemically triggered self-construction of films is a relatively simple, promising and effective approach (i) providing covalent [4][5][6] and/or (ii) non-covalent 4,7,8 immobilization of compounds with excellent functionalities 9 or (bio)-activities 4,10 and (iii) allowing selective functionalization of microelectrode arrays. 4,9,10 Polyphenols, such as tannic acid, TA, are able to coordinate and to self-assemble with different metal ions into combined cross-linked networks of polyphenols and metal ions, the functionality of which can be versatile based on the incorporated polyphenols and metal ions [11][12][13] . Tannic acid, the polyphenol used in this work, is present in abundance in nature and easily accessible.…”

Section: Introductionmentioning

confidence: 99%

Ion-Imprinted Nanofilms Based on Tannic Acid and Silver Nanoparticles for Sensing of Al(III)

Krywko‐Cendrowska

Marot

Mathys

et al. 2021

ACS Appl. Nano Mater.

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Electrochemically triggered self-assembly can be effectively utilized to produce electroactive materials of tailored properties for various applications, such as sensor development. Here, we present a thin sensor film based on tannic acid (TA) and silver nanoparticles (AgNPs), ionically imprinted via electrodeposition and tailor-designed for electrochemical tracing of aluminum ions, Al(III). In the first stage, the conditions for the Al(III)-printing of TA films onto indium-tin-oxide (ITO) electrode via electrodeposition are established and optimized. To form an AgNPs-containing film, AgNPs are presynthesized via a direct reduction of Ag(I) by TA resulting in TA-stabilized AgNPs (TA@AgNPs) of 1-4 nm in size, as observed by dynamic light scattering. Next, Al(III) ions are added to complex the TA molecules adsorbed on the surface of AgNPs. The resulting Al(III)/TA@AgNPs mixture is then electrodeposited onto ITO surface by applying an anodic potential to form a film. As a result a mesh-structured layer composed of AgNPs with TA on their surface and electrochemically cross-linked via TA-TA covalent bonds at the Al(III)-free coordination sites is formed. The introduction of Al(III) ions bonded via coordination bonds with TA and their consecutive removal using sodium fluoride formed vacancies ready to bind Al(III) ions from the analyzed solution allowing their electrochemical sensing, as monitored by cyclic voltammetry, quartz crystal microbalance (QCM) and X-ray photoelectron spectroscopy. The film was employed for sensing of neurotoxic Al(III) in human serum. A linear correlation between the current value at 0.9 V and the concentration of Al(III) was obtained in the range between 0.10 and 0.298 µM. dried using a filter paper. The grids were observed at 200 kV with a Technai G2 (FEI) microscope. Images were acquired with an Eagle 2k (FEI) ssCCD camera.

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Selective Nanotrench Filling by One-Pot Electroclick Self-Constructed Nanoparticle Films

Cited by 18 publications

References 45 publications

Electro-click construction of hybrid nanocapsule films with triggered delivery properties

Electro-click construction of hybrid nanocapsule films with triggered delivery properties

Review of Electrochemically Triggered Macromolecular Film Buildup Processes and Their Biomedical Applications

Ion-Imprinted Nanofilms Based on Tannic Acid and Silver Nanoparticles for Sensing of Al(III)

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