Silver nanoparticles assemblies mediated by functionalized biomimetic oligomers

Maayan, Galia; Liu, Li Kai

doi:10.1002/bip.21632

Cited by 31 publications

(29 citation statements)

References 51 publications

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“…Peptoids can be easily synthesized on solid support using the “submonomer” method,7 which employs primary amines and thus does not require protection and de-protection steps and which enables the incorporation of innumerable functional groups at specified N -positions along their spine. Moreover, peptoids are biocompatible8 and both their sequences and secondary structures exhibit high stability 9. These features, specifically the great versatility of the peptoid backbone, which can be easily modified, thus have the potential to include various ligands for selective coordination of different metal ions and/or for the creation of different types of complexes, together with their ability to form secondary structures as an additional tool for controlling recognition, make them excellent candidates to carry out selective recognition processes.…”

Section: Introductionmentioning

confidence: 99%

A rationally designed metal-binding helical peptoid for selective recognition processes

Baskin

Maayan

2016

Chem. Sci.

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Section: Introductionmentioning

confidence: 99%

A rationally designed metal-binding helical peptoid for selective recognition processes

Baskin

Maayan

2016

Chem. Sci.

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“…At pH » 2.3, such systems form stable dispersions with particle diameter 23 ± 13 nm, while up to 10 particles aggregate in the structure with increasing pH with diameter 875 ± 108 nm. Modification of oligoglycine with 1,10-phenanthroline stabilizes SN and facilitates the formation of sensor-and catalytically-active hybrid systems, while the presence of substituents in the structure of the heterocyclic modifier suppresses the capacity of oligoglycine to form hybrid composites [172]. The interaction of chromophore groups of amino acid fragments of peptides in silver clusters, which affects the optical properties of the hybrid systems [173], has found practical use in the preparation of hybrid biomarkers for the visualization of histidine-containing proteins in biochemical research [174].…”

Section: Hybrid Systems With An Organic Polymer Matrixmentioning

confidence: 99%

Preparation, Structure, and Properties of Hybrid Polymer Composites Containing Silver Clusters and Nanoparticles

Tolstov

2015

Theor Exp Chem

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The major methods for the preparation of silver-containing polymer composite nanosystems and the formation of their hybrid structure are examined. Special attention is focused on a new class of silver-containing hybrid systems, namely, organic-inorganic coordination polymers, obtained by the self-assembly of silver complexes. The effect of intercomponent interaction on the structure and properties of these hybrid composites was examined.The creation of new improved materials is an important goal of modern chemistry and materials science. Polymer composites with hybrid structure are among such materials and hold interest since they display a combination of properties characteristic for each of the inorganic and organic components [1-3] and, in some cases, unique properties related to the specific nature of their structure [4]. From a modern viewpoint, hybrid organic-inorganic materials are formed by the combination of components, differing in their chemical nature, on a molecular or nano level through formation of chemical bonds ((non)covalent bonds, hydrogen bonding, and donor-acceptor bonds) or weaker physical bonds (van der Waals and electrostatic interactions) [5]. Special attention is given to the stability of the nanodispersed components due to interaction between the nanophase and various stabilizers [6]. The interest in silver-containing hybrid polymer composite materials, including nanocomposites, which, by their very nature, are a priori hybrid systems, is attributed to a set of properties of the matrix itself, which often possesses hybrid structure, properties of silver in ionic and nanodispersed forms, and new properties related to the appearance of hybrid silver-polymer structures [7,8]. Special interest is presently found in bionanocomposites derived from biopolymers and silver nanoparticles (SN), which display specific physicochemical properties, in particular, electrochemical, photochemical, and catalytic properties highly dependent on the dimensions and polydispersion of the nanophase [9, 10] as well as biological activity due to the ionization of the metal atoms in the presence of H 2 O/O 2 and the interaction between the SN surface and functional groups of the various biomolecules [11].In light of the important role of the polymer matrix in formation of the major structural characteristics and properties of silver-containing hybrid systems, we should classify these materials according to their chemical structure.Composites with Silver Nanoparticles (SN) Dispersed in a Polymer Matrix with Hybrid Structure. The major distinguishing feature of such materials is the prior synthesis of the hybrid polymer matrix obtained due to the formation of chemical bonds between the organic and inorganic components with subsequent introduction of SN into the system. The synthesis of the SN may be either in situ or ex situ. 740040-5760/15/5102-0074

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“…15,26 In 2011, Zuckermann and Robinson investigated the stabilization of Au(0) NPs using peptoids as stabilizers, under a high concentration of salts. 26 Neither selfassembly nor controlled aggregation have been reported for these NPs.…”

Section: N-substituted Glycine Oligomers -Peptoids -As Mediatorsmentioning

confidence: 99%

Aggregation of inorganic nanoparticles mediated by biomimetic oligomers

Tigger-Zaborov

Maayan

2015

Org. Biomol. Chem.

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Assemblies of nanoparticles (NPs) have been broadly used for the construction of materials with unique spectroscopic and chiral properties for applications in various scientific disciplines such as sensing, bio-nanotechnology and medicine. Mediating the aggregation of NPs by synthetic biomimetic oligomers, namely, DNA, PNA, peptides and peptide mimics, rather than by small organic molecules has been shown to produce interesting supramolecular structures and enable the combination of the biocompatibility of the mediators and the spectroscopic properties of the NPs. Yet, the key to using this powerful approach for designing new functional materials is to understand the NPs aggregation patterns induced by biopolymers and biomimetic oligomers. Herein we describe the important developments in this field, from early studies to recent work with an emphasis on synthetic methods and tools for controlled assembly of metal NPs by biomimetic polymers and oligomers.

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Silver nanoparticles assemblies mediated by functionalized biomimetic oligomers

Cited by 31 publications

References 51 publications

A rationally designed metal-binding helical peptoid for selective recognition processes

A rationally designed metal-binding helical peptoid for selective recognition processes

Preparation, Structure, and Properties of Hybrid Polymer Composites Containing Silver Clusters and Nanoparticles

Aggregation of inorganic nanoparticles mediated by biomimetic oligomers

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