Catechol-derivatized poly(vinyl alcohol) as a coating molecule for magnetic nanoclusters

Burnand, David; Monnier, Christophe; Redjem, Anthony; Schaefer, Mark J.; Rothen‐Rutishauser, Barbara; Kilbinger, Andreas F. M.; Petri‐Fink, Alke

doi:10.1016/j.jmmm.2014.09.002

Cited by 11 publications

(16 citation statements)

References 37 publications

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“…Hetero-functionalized amine-functionalized polyvinylalcohol (PVA) coated AuNPs (NH 2 PVAAuNPs) with af luorescent dye sandwiched between twopolymer layers, silica NPs with fluorescent dye incorporated in the core and PVA-coated SPIONs with af luorescent dye present on the surface, were prepared as described [11][12][13] and the characterization results of the particles are shown in Table 1. NP aggregation and/or dissolution in ALF wasa ssessed after 24 hincubation at 37°C via cryo electron microscopy(CryoEM) (Fig.…”

Section: Results and Interpretationmentioning

confidence: 99%

Artificial Lysosomal Platform to Study Nanoparticle Long-term Stability

Milošević¹,

Bourquin²,

Burnand³

et al. 2019

Chimia

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Nanoparticles (NPs) possess unique properties useful for designing specific functionalities for biomedical applications. Ap rerequisite of as afe-by-design and effective use in any biomedical application is to study NP-cell interactions to gain abetter understanding of cellular consequences upon exposure. Cellular uptake of NPs results mainly in the localization of NPs in the complex environment of lysosomes, ac ompartment which can be mimicked by artificial lysosomal fluid. In this work we showed the applicability of lysosomal fluid as a platform for af ast assessment of gold, iron oxide and silica NP stability over 24 hi nar elevant biological fluid, by using multiple analytical methods.

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Section: Results and Interpretationmentioning

confidence: 99%

Artificial Lysosomal Platform to Study Nanoparticle Long-term Stability

Milošević¹,

Bourquin²,

Burnand³

et al. 2019

Chimia

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“…As a second step, the citric acid was exchanged with PVA−phthalimide (5 kDa), with a catechol anchor group 59 synthesized according to a reported proce-dure. 58 Citric acid-coated nanoparticles were added (4.7 mg polymer/mg Fe) to the polymer dissolved in Milli-Q water, and the mixture was sonicated at room temperature overnight. The nanoparticles were subsequently recollected and dialyzed against water for 2 days to remove excess polymer.…”

Section: Experimental Methodsmentioning

confidence: 99%

Lock-In Thermography as an Analytical Tool for Magnetic Nanoparticles: Measuring Heating Power and Magnetic Fields

et al. 2017

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Magnetic nanoparticles and their ability to convert electromagnetic energy into heat are of explicit interest for various applications. However, precise quantification of their heating efficiency is not always upfront, and several parameters render comparative studies challenging. This paper describes the theory behind lock-in thermography, a new technique for quantifying the heating properties of magnetic nanoparticles. This technique allows the investigation of some of the potential sources of variability: key factors such as magnetic field inhomogeneity and its effects on the heating power are explored in detail. The presented results, obtained from various nanoparticle batches of different origins, highlight the importance of pursuing a standardized and systematic approach when quantifying the heating efficiency of magnetic nanoparticles.

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“…prepared a DOPA‐based PVA hydrogel with pH‐dependent and self‐healing properties through an esterification reaction between PVA and DOPA. Burnand et al . proposed a well‐defined maleimide catechol end‐functionalized PVA with the assistance of a reversible addition–fragmentation chain‐transfer process; this PVA was mounted onto an iron oxide nanoparticle surface to separate the clusters and single nanoparticles.…”

Section: Introductionmentioning

confidence: 73%

Dopamine‐functionalized poly(vinyl alcohol) elastomer with melt processability and self‐healing properties

2017

J of Applied Polymer Sci

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A dopamine‐functionalized poly(vinyl alcohol) (PVA) elastomer with melt processability and self‐healing properties was prepared by a new chemical route of graft modification, that is, PVA carboxylation and a carbodiimide reaction. The conventional modifier for PVA sacrificed the intrinsic hydrogen‐bonding interactions and dramatically decreased the mechanical strength. The modifier dopamine, as a catechol derivative, has two hydroxyl groups, which formed hydrogen bonds with the hydroxyl groups of PVA; it also has one benzene ring, which increased the thermal stability. We found that the introduction of dopamine into the PVA molecular structure lowered the melting point, improved the thermal stability, broke the crystalline structure, and enabled thermal processing. Moreover, the modified PVA possessed good mechanical properties, could be self‐healed, and is believed to have potential applications in many fields. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45072.

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Catechol-derivatized poly(vinyl alcohol) as a coating molecule for magnetic nanoclusters

Cited by 11 publications

References 37 publications

Artificial Lysosomal Platform to Study Nanoparticle Long-term Stability

Artificial Lysosomal Platform to Study Nanoparticle Long-term Stability

Lock-In Thermography as an Analytical Tool for Magnetic Nanoparticles: Measuring Heating Power and Magnetic Fields

Dopamine‐functionalized poly(vinyl alcohol) elastomer with melt processability and self‐healing properties

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