Dendronization: A Useful Synthetic Strategy to Prepare Multifunctional Materials

Paez, Julieta I.; Martinelli, Marisa; Brunetti, Verónica; Strumia, Miriam Cristina

doi:10.3390/polym4010355

Cited by 80 publications

(50 citation statements)

References 198 publications

(297 reference statements)

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“…[7][8][9] Polymers can also be dendronized by reaction of the focal point of the dendron with the polymeric backbone. 10,11 23 reported the synthesis of polyamidoamine (PAMAM) dendrimers through a divergent method using an ethylenediamine initiator core. This method involves a two-step iterative reaction sequence that leads different generations of dendritic b-alanine units.…”

Section: Dendritic Structuresmentioning

confidence: 99%

Dendrimers

Perisé-Barrios

Sepúlveda‐Crespo

Shcharbin

et al. 2014

Soft Nanoparticles for Biomedical Applications

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Dendrimers are polymeric macromolecules constituted of a repetitive sequence of monomers growing step-by-step from a multifunctional core in a radial iterative fashion, not by polymeric reactions. Their synthesis offers the opportunity to generate monodisperse, structure-controlled architectures resulting in utility in specific biomedical applications. Advances in the role of molecular weight and architecture on the behaviour of these dendrimers, together with recent progress in the design of biodegradable chemistries, has permitted the application of these branched polymers as antiviral drugs and in other applications outside medicine.

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Section: Dendritic Structuresmentioning

confidence: 99%

Dendrimers

Perisé-Barrios

Sepúlveda‐Crespo

Shcharbin

et al. 2014

Soft Nanoparticles for Biomedical Applications

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“…Although the dendritic fragments of these materials usually constitute only a minor part of the total volume, these components can significantly alter support properties, supplying entirely new features and functions to the hybrid material [34]. Superficially, dendronized polymers can display a higher loading capacity and allow the bulk incorporation of bioactive molecules of higher molecular weights and of different chemical structure, while maintaining high internalization and transfection efficiency as compared to conventional dendrimers.…”

Section: Introductionmentioning

confidence: 99%

Gelatin films dendronized selectively on one side: enhancing antimicrobial properties and water repellence

Schejtman¹,

Toselli

Strumia³

et al. 2015

Polym. Bull.

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To develop a material with potential biomedical applications, novel gelatin films were prepared by cold-casting method using cerium(III) and genipin solution as cross-linking agents, and surface modified with dendritic molecules. The structure and properties of the synthesized gelatin films were investigated by ATR-FTIR, mechanical tests, swelling behavior and water vapor permeability (WVP). The results showed that cross-linking could improve the mechanical and microbiological properties and lower the hydrophilic property of gelatin films. According to ATR-FTIR analysis, it can be concluded that the dendronization took place on only one of the faces of the films. The results have shown that the experimental methodology performed allows one-surface modification, so a novel biomaterial was obtained in the form of a film with good properties and dendritic structure in one face (hydrophobic and hydrophilic faces), rendering a multivalent structure useful in biomedicine development.

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“…Por otro lado, los polímeros hiperramificados pueden ser sintetizados con mayor facilidad y a pesar de tener una estructura menos controlada que los dendrímeros, son capaces de presentar efecto dendrítico. Las superficies hiperfuncionalizadas y multirramificadas que se obtienen utilizando moléculas dendríticas se denominan superficies dendronizadas [2]. Estas superficies presentan una excelente oportunidad para crear una amplia variedad de arquitecturas poliméricas, que dependiendo de la naturaleza del grupo funcional periférico y la naturaleza del esqueleto, resultan adecuadas como plantillas, soporte de biomoléculas o plataforma reactiva para analitos de interés en el desarrollo de sensores [3][4][5].…”

Section: Introductionunclassified

Películas nanoestructuradas de polímeroshiperramificados como plantillas para laformación de estructuras metálicas

2015

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Películas nanoestructuradas de polímeros hiperramificados como plantillas para la formación de estructuras metálicas RESUMENLa molécula Boltorn H30 es un polímero hiperramificado polihidroxilado de tercera generación de origen comercial con forma aproximadamente globular de diámetro promedio de 3,3 nm y tiene una cavidad endoreceptora que puede ser aprovechada para la incorporación de iones u otras moléculas pequeñas. En este caso, se analiza la adsorción espontánea de Boltorn H30 sobre sustratos de carbono para generar superficies nanoestructuradas capaces de captar o retener cationes cobre (II) en su interior. Posteriormente, las películas formadas se llevan a una celda electroquímica con el fin de reducir electroquímicamente el catión y generar estructuras metálicas usando el polímero hiperramificado como plantilla o molde. Estas plataformas desarrolladas con cobre electrodepositado han mostrado ser útiles para la electrocatálisis de peróxido de hidrógeno. Las superficies estudiadas en este trabajo han sido caracterizadas mediante diferentes técnicas espectroscópicas, microscópicas y electroquímicas.Palabras clave: polímero hiperramificado, superficies funcionalizadas, carbono, cobre ABSTRACTBoltorn H30 molecule is the third generation of a commercial polyhydroxylated hyperbranched polymer with an almost globular shape of 3,3 nm average diameter, which has an endo-receptor cavity that can be used for ions or some other small molecules inclusion.In this work, we analyze the spontaneous adsorption of Boltorn H30 on carbon substrates with the aim of generating nanostructured surfaces with the ability to capture or retain copper cations (II) inside. Afterwards, the formed films were taken to an electrochemical cell to reduce the cation and generate metallic structures using the hyperbranched polymer as a template. The platforms developed with electrodeposited copper are useful for the electrocatalysis of hydrogen peroxide. Along this work, the studied surfaces were characterized by means of different spectroscopical, microscopical and electrochemical techniques.

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Dendronization: A Useful Synthetic Strategy to Prepare Multifunctional Materials

Cited by 80 publications

References 198 publications

Dendrimers

Dendrimers

Gelatin films dendronized selectively on one side: enhancing antimicrobial properties and water repellence

Películas nanoestructuradas de polímeroshiperramificados como plantillas para laformación de estructuras metálicas

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