Effect of (poly)electrolytes on the interfacial assembly of PEG functionalized gold nanoparticles.

Clicks: 417
ID: 342
2019
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Steady

Ranked #8 of 87 articles by views in Langmuir : the ACS journal of surfaces and colloids

Most read Least read

Bar heights use a square-root scale.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
We report on the effect of interpolymer complexes (IPCs) of poly(acrylic acid) (PAA) with poly(ethylene glycol) functionalized Au nanoparticles (PEG-AuNPs) as they assemble at the vapor-liquid interface, using surface sensitive synchrotron X-ray scattering techniques. Depending on the suspension pH, PAA functions both as a weak polyelectrolyte and a hydrogen bond donor, and these two roles affect the interfacial assembly of PEG-AuNPs differently. Above its isoelectric point, we find that PAA leads to the formation of a PEG-AuNPs monolayer at the interface with hexagonal structure. In the presence of high concentration of HCl (i.e., below the isoelectric point), at which PAA forms IPCs with PEG, the hexagonal structure at the interface appears to deteriorate, concurrent with aggregation in the bulk. Thus, while electrolytic behavior of PAA induces interfacial assembly, hydrogen bonding behavior, as PAA becomes neutral, favors the formation of 3D assemblies. For comparison, we also report on the formation of PEG-AuNPs monolayers (in the absence of PAA) with strong electrolytes such as HCl, H2SO4 and NaOH that lead to a high degree of crystallinity.
Reference Key
nayak2019effect Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Nayak, Srikanth;Fieg, Max;Wang, Wenjie;Bu, Wei;Mallapragada, Surya K;Vaknin, David;
Journal Langmuir : the ACS journal of surfaces and colloids
Year 2019
DOI
10.1021/acs.langmuir.8b03535
URL
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.