Bioconjugation of gold-polymer core–shell nanoparticles with bovine serum amine oxidase for biomedical applications

Venditti, Iole; Hassanein, Taha F.; Fratoddi, Ilaria; Fontana, Laura; Battocchio, Chiara; Rinaldi, Federica; Carafa, Maria; Marianecci, Carlotta; Diociaiuti, Marco; Agostinelli, Enzo; Cametti, C.; Russo, Michele

doi:10.1016/j.colsurfb.2015.06.052

Cited by 50 publications

(36 citation statements)

References 47 publications

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“…The influence of the metal/ligand molar ratio has been thoroughly investigated in the literature for Au and Ag NPs [35] and is herein reported for the first time for Pt in the presence of the DEA ligand. Here, a complex effect can be envisaged, deriving from the presence of the thiol functionality and the ammonium end group [36] that undergoes to acidic–base equilibrium in aqueous solution.…”

Section: Resultsmentioning

confidence: 99%

Functionalized platinum nanoparticles with surface charge trigged by pH: synthesis, characterization and stability studies

Testa

Fontana

Venditti

et al. 2016

Beilstein J. Nanotechnol.

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In this work, the synthesis and characterization of functionalized platinum nanoparticles (PtNPs) have been investigated. PtNPs were obtained by a wet redox procedure using 2-diethylaminoethanethiol hydrochloride (DEA) as capping agent. By varying the Pt/thiol molar ratio, monodispersed and stable particles with diameters in the range of 3–40 nm were isolated. The amino functionality allows neutral particles to be obtained in basic water solution and positive charged nanoparticles in neutral or acidic water solution (pH 7–2), as confirmed by DLS and ζ-potential measurements. FTIR spectroscopy, FE-SEM, DLS and ζ-potential measurements confirmed the size and showed long term water stability (up to three months) of the colloidal system.

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Section: Resultsmentioning

confidence: 99%

Functionalized platinum nanoparticles with surface charge trigged by pH: synthesis, characterization and stability studies

Testa

Fontana

Venditti

et al. 2016

Beilstein J. Nanotechnol.

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“…Directional emission is reported from a monolayer containing a gain medium grown on a thin gold film [13,15,114,115]. The synthesis of metal nanoparticles can be achieved by using different methods, from electrodeposition [116], to chemical wet reduction [117], with single or double phase [118,119,120], and suitably selecting the amount and type of ligands, in particular, thiols [121] or amines [122]. This allows you to control the size and functionality of AuNPs and improves the effective interaction with the photonic material [123].…”

Section: Aunps With Opalsmentioning

confidence: 99%

Gold Nanoparticles in Photonic Crystals Applications: A Review

Venditti

2017

Materials

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This review concerns the recently emerged class of composite colloidal photonic crystals (PCs), in which gold nanoparticles (AuNPs) are included in the photonic structure. The use of composites allows achieving a strong modification of the optical properties of photonic crystals by involving the light scattering with electronic excitations of the gold component (surface plasmon resonance, SPR) realizing a combination of absorption bands with the diffraction resonances occurring in the body of the photonic crystals. Considering different preparations of composite plasmonic-photonic crystals, based on 3D-PCs in presence of AuNPs, different resonance phenomena determine the optical response of hybrid crystals leading to a broadly tunable functionality of these crystals. Several chemical methods for fabrication of opals and inverse opals are presented together with preparations of composites plasmonic-photonic crystals: the influence of SPR on the optical properties of PCs is also discussed. Main applications of this new class of composite materials are illustrated with the aim to offer the reader an overview of the recent advances in this field.

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“…In addition to its capability of passivating metal surfaces, the organic shell is a suitable support for a multitude of functional groups, chromophores, and biomolecules. As a consequence, the resulting material provides, in terms of properties and distinctive features, optimized returns with respect to the single components, thus finding application in various fields including photonics and sensing [1,2,3,4,5]. …”

Section: Introductionmentioning

confidence: 99%

Synthesis of Fluorescent Core-Shell Metal Nanohybrids: A Versatile Approach

et al. 2016

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A flexible way of fabricating core-shell noble metal-organic nanohybrids with tailored chemical and spectroscopic properties is proposed here. The synthetic protocol consists of a multi-step procedure able to guarantee acceptable reproducibility of core size and shape as well as control of the organic outer layer. The proposed method highlights limitations in obtaining highly controllable products, although the heterogeneity degree of the nanostructures is in line with that expected from bottom-up approaches in solution. Selective functionalization of the nanohybrids with properly-substituted fluorescent dyes under variable experimental conditions allowed the preparation of composite systems of tunable spectroscopic properties to be employed as nanoprobes in sensing or photonic applications. To this end, preliminary investigation on embedding the nanohybrids in compatible polymeric matrices is also reported.

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Bioconjugation of gold-polymer core–shell nanoparticles with bovine serum amine oxidase for biomedical applications

Cited by 50 publications

References 47 publications

Functionalized platinum nanoparticles with surface charge trigged by pH: synthesis, characterization and stability studies

Functionalized platinum nanoparticles with surface charge trigged by pH: synthesis, characterization and stability studies

Gold Nanoparticles in Photonic Crystals Applications: A Review

Synthesis of Fluorescent Core-Shell Metal Nanohybrids: A Versatile Approach

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