Redox-responsive release of active payloads from depolymerized nanoparticles

Lv, Liping; Jiang, Shuai; Inan, Alper; Landfester, Katharina; Crespy, Daniel

doi:10.1039/c6ra24796b

Cited by 18 publications

(19 citation statements)

References 57 publications

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“…This versatile linker potentially allows conjugations with various corrosion inhibitors (Figures and ). In particular, this approach is compatible with inhibitor molecules bearing amino groups, and is therefore not restricted to thiol‐containing inhibitor as previously reported in early design . Consequently, the design allows widening of inhibition properties through diverse conjugations while preserving a redox‐sensing function (Figure b).…”

Section: Resultsmentioning

confidence: 75%

“…In particular, this approach is compatible with inhibitor molecules bearing amino groups, and is therefore not restricted to thiol-containing inhibitor as previously reported in early design. [22][23][24] Consequently, the design allows widening of inhibition properties through diverse conjugations while preserving a redox-sensing function (Figure 1b). Tryptamine, a corrosion inhibitor bearing a primary amino group and used for steel protection, [30] was conjugated on P(BMA-co-PCOESEM) and yielded P(BMA-co-TCOESEMA) as redox-responsive polymerinhibitor conjugates (Scheme 2).…”

Section: Resultsmentioning

confidence: 99%

“…Reduction can be therefore used as stimulus to cleave labile bonds between an inhibitor and a polymer. Mercaptobenzothiazole was released from nanoparticles by cleavage of disulfide bonds, while 2,5‐dimercapto‐1,3,4‐thiadiazole was released upon depolymerization of nanocapsules . These examples have exploited up to now the reduction of disulfide bonds to release the inhibitor.…”

Section: Introductionmentioning

confidence: 99%

“…Mercaptobenzothiazole was released from nanoparticles by cleavage of disulfide bonds, [23] while 2,5-dimercapto-1,3,4-thiadiazole was released upon depolymerization of nanocapsules. [24] These examples have exploited up to now the reduction of disulfide bonds to release the inhibitor. For this, thiol-containing corrosion inhibitors were conjugated with polymers.…”

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confidence: 99%

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Redox‐Responsive Polymer with Self‐Immolative Linkers for the Release of Payloads

Iamsaard

Seidi

Dararatana

et al. 2018

Macromol. Rapid Commun.

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Section: Resultsmentioning

confidence: 75%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Redox‐Responsive Polymer with Self‐Immolative Linkers for the Release of Payloads

Iamsaard

Seidi

Dararatana

et al. 2018

Macromol. Rapid Commun.

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“…The corrosion inhibitor was released upon reduction of the disulfide bonds. Finally, a corrosion inhibitor could be also released by depolymerizing it from a polymeric nanocapsule structure …”

Section: Introductionmentioning

confidence: 99%

Chitosan Nanocapsules for pH‐Triggered Dual Release Based on Corrosion Inhibitors as Model Study

Pitakchatwong

Schlegel

Landfester

et al. 2018

Part & Part Syst Charact

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/ppsc.201800086. Chitosan (CS) is known for its uniqueness in terms of containing reactive functional groups, i.e., amino and hydroxyl groups, along the chain which offer the noncovalent bonds and chemical modifications. At pH 3 in emulsion system, the CS chains are under charge-charge repulsive force, leading the polysaccharide chains to align as the hollow nanospheres and at that time, the crosslink leads to the nanocapsules. The CS nanocapsules allow the model cargos, i.e., corrosion inhibitors, entrapment not only via the noncovalent bond based on the weak interaction in the core for 2-mercaptobenzothiazole (MBT) cargo but also via the chemical bonds based on the amino group remaining on CS structure to result in either amide or Schiff base linkage in case of 3-nitrosalicylic acid (3NiSA) cargo. The release studies indicate that CS nanocapsules can release two cargoes upon pH change due to the acidic/basic-triggered cleavage of bonds between cargoes and nanocapsules. Once corrosion occurs, resulting in variation of the local pH value, the CS nanocapsules release MBT in fast and 3NiSA in a slow, sustained manner. The efficiency of the approach is demonstrated using the nanocapsules for hindering the corrosion of copper as measured by electrochemical quartz crystal microbalance. Nanocapsule Delivery SystemsRecently, the development of nanocarriers for material appli cations has required not only high efficient encapsulation but also the capability to control the release of cargoes such as drugs, proteins, corrosion inhibitors, and catalysts. [1][2][3] Encapsulation

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Corrosion‐Responsive Self‐Healing Coatings

2023

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Organic coatings are one of the most popular and powerful strategies for protecting metals against corrosion. They can be applied to in different ways, such as by dipping, spraying, electrophoresis, casting, painting, or flow coating. They offer great flexibility of material designs and cost effectiveness. Moreover, since about 20 years self‐healing has evolved as a new research topic for protective organic coatings. Responsive materials play a crucial role in this new research field. However, for a really targeted development of high performance self‐healing coatings for corrosion protection, it is not sufficient just to focus on smart responsive materials and suitable active agents for self‐healing. A better understanding of how coatings can react on different stimuli induced by corrosion, how these stimuli can spread in the coating and how the released agents can reach the corroding defect is also of high importance. Such knowledge would allow to design coatings which are optimised for specific applications. Herein, the requirements and possibilities from the corrosion and synthesis perspectives for designing materials for preparing self‐healing coatings for corrosion protection are discussed.This article is protected by copyright. All rights reserved

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Redox-responsive release of active payloads from depolymerized nanoparticles

Abstract: The difference in the reactivity of two monomers, aniline (ANI) and 2,5-dimercapto-1,3,4-thiadiazole (DMcT), was employed to design nanoparticles with completely different nanostructures.

Cited by 18 publications

References 57 publications

Redox‐Responsive Polymer with Self‐Immolative Linkers for the Release of Payloads

Redox‐Responsive Polymer with Self‐Immolative Linkers for the Release of Payloads

Chitosan Nanocapsules for pH‐Triggered Dual Release Based on Corrosion Inhibitors as Model Study

Corrosion‐Responsive Self‐Healing Coatings

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