Role of the ratio of biopolyelectrolyte persistence length to nanoparticle size in the structural tuning of electrostatic complexes

Shi, Li; Carn, Florent

doi:10.1103/physreve.94.032504

Cited by 17 publications

(37 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This effect is slight, but has been observed for the three ratios studied below 0.3. We underline that the fractal dimension obtained with Au-PLL agrees with previous experimental 18 and numerical 35 studies dedicated to the structural evolution of nanoparticle/homopolyelectrolyte complexes as a function of the ratio between the polyelectrolyte total persistence…”

Section: Complexation Between Aunp(mua) and Polymerssupporting

confidence: 87%

“…1 Indeed, it has been shown that the electrostatic complexation of cationic gold NPs (AuNPs) with DNA enables to assemble a finite number of NPs in stable linear nanostructures in water by simple mixing. 14 Similar results were then reported with silica NPs 15 and other polyelectrolytes such as chitosan, 16,17 hyaluronic acid, 18,19 polystyrene sulfonate 20 and polylysine. 18 However, as shown theoretically 21 and experimentally 18 , the interparticle distance within these assemblies is governed by the electrostatic interactions.…”

Section: Introductionsupporting

confidence: 81%

“…14 Similar results were then reported with silica NPs 15 and other polyelectrolytes such as chitosan, 16,17 hyaluronic acid, 18,19 polystyrene sulfonate 20 and polylysine. 18 However, as shown theoretically 21 and experimentally 18 , the interparticle distance within these assemblies is governed by the electrostatic interactions. Control of the plasmon coupling between adjacent NPs is then made difficult at fixed conditions of electrostatic screening as encountered in biological applications.…”

Section: Introductionsupporting

confidence: 81%

“…3 Moreover, it was also shown that the structure, 18 aggregation number 22 and stability 21,22 of such assemblies are also influenced by the screening conditions.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Self-Assembly of Gold Nanoparticles with Oppositely Charged, Long, Linear Chains of Periodic Copolymers

et al. 2020

View full text Add to dashboard Cite

We studied the assembly of nanoparticles with oppositely charged linear and periodic copolymers (CPs), alternating ionic and polar sequences, in the dilute range of polymer concentration. For the first time, we considered CPs displaying a contour length much higher than the AuNP perimeter. We assumed that such CPs will enable to collect a finite number of NPs into linear nanostructures with a gain of colloidal stability and a better structural control compared to electrostatic complexes obtained with homo polyelectrolytes. As a case study, we synthesized anionic gold nanoparticles (AuNPs) and CPs consisting of alternated cationic poly-L-lysine (PLL) blocks and polar sequences of poly(ethyleneglycol) (PEG). We showed that complexation of AuNPs with CPs is quite similar to that observed with homo PLL. In that respect, finite size nanometric clusters, of less than 30 NPs, outside the electro neutrality domain and a fast phase separation occurs at the electro neutrality. Nevertheless, the presence of PEG blocks allowed us to highlight some specific effects. First, the global charge of the positively charged clusters was found to be always lower for CP based clusters than for homo PLL with a dependence of the charge with the number and the mass of the PEG blocks. Second, in spite of this effect which should have promoted the formation of dense structure, the fractal dimension characterizing the structure of the clusters in bulk was found to be always below 1.8. Finally, we showed that PEG blocks influence the interparticle distance by disfavoring plasmon delocalization when the clusters are dispersed in water and collapse around the nanoparticles when the clusters are deposited on substrate.

show abstract

Section: Complexation Between Aunp(mua) and Polymerssupporting

confidence: 87%

Section: Introductionsupporting

confidence: 81%

Section: Introductionsupporting

confidence: 81%

“…3 Moreover, it was also shown that the structure, 18 aggregation number 22 and stability 21,22 of such assemblies are also influenced by the screening conditions.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Self-Assembly of Gold Nanoparticles with Oppositely Charged, Long, Linear Chains of Periodic Copolymers

et al. 2020

View full text Add to dashboard Cite

show abstract

“…By contrast, the elution time of Col was delayed after HSVM, suggesting a molecular weight decrease (Table S1, ESI †). These differences may be caused by differences in the persistent length of the polymer [35][36][37] because stiffer polymers should be more easily degraded. Unfortunately, GPC measurement for PGA could not be performed because PGA was not dissolved in hexafluoroisopropanol.…”

Section: Preparation and Characterization Of Polypeptide/ptx Complexesmentioning

confidence: 99%

Water solubilization of paclitaxel using polypeptides for cancer therapy

et al. 2022

View full text Add to dashboard Cite

show abstract

Deposition of PEDOT:PSS via Atmospheric Pressure Plasma Torch

Arkhangelskiy,

Quaranta,

Pancheri

et al. 2023

Adv Eng Mater

View full text Add to dashboard Cite

Creating conductive biocompatible coatings with enhanced stability and adhesion can be achieved with cold plasma‐assisted processes, that provide surface modification, and assisted polymerization at mild conditions and room temperature. Here, we report a novel method for the controlled deposition of conductive polymer poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) on substrates with different characteristics:, polyethylene terephthalate (PET), poly(dimethylsiloxane) (PDMS), and soda‐lime glass. The plasma deposited PEDOT:PSS films were studied by atomic force microscopy (AFM), scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy, and tested for stability and adhesion. The electrical resistance was obtained by a 4‐point probe station in order to investigate the influence of plasma reaction and etching mechanism on the reproducibility of the electrical parameters. The proposed method was also successfully developed for the deposition of stacked layers structures, with the aim to design basic passive electrical components, such as a resistor or a capacitor. The possibility of realizing complex shapes by selective area deposition can enable the realization of advanced biosensor devices.This article is protected by copyright. All rights reserved.

show abstract

Role of the ratio of biopolyelectrolyte persistence length to nanoparticle size in the structural tuning of electrostatic complexes

Cited by 17 publications

References 46 publications

Self-Assembly of Gold Nanoparticles with Oppositely Charged, Long, Linear Chains of Periodic Copolymers

Self-Assembly of Gold Nanoparticles with Oppositely Charged, Long, Linear Chains of Periodic Copolymers

Water solubilization of paclitaxel using polypeptides for cancer therapy

Deposition of PEDOT:PSS via Atmospheric Pressure Plasma Torch

Contact Info

Product

Resources

About