ArticleThe journal of physical chemistry. C, Nanomaterials and interfaces2025
Structure and Zeta Potential of Gold Nanoparticles with Coronas of Varying Size and Composition.
Article in The journal of physical chemistry. C, Nanomaterials and interfaces, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Electrochemical lateral flow assay with ELISA-level performance for detecting plant diseases in East Africa.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- One-Pot Green Synthesis of Amino Acid-Capped Gold Nanoparticles for Selective Sensing of Cyanide and Heavy Metals.ACS omega · 2026Article
- A Degradable Nanosystem Based on Small Gold Nanoparticles and Albumin for Amyloid Aggregation Inhibition.Pharmaceutics · 2026Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The structure of the soft ligand shell in engineered nanoparticles is related to their physical and chemical properties. The variation in that structre is critical for extending the diversity of functions in a wide variety of applications. To uncover the structure of soft PAH coronas wrapped on gold nanoparticles (AuNPs), in particular, we used atomistic simulations in this work. We found that increasing the number of PAH chains can increase both the size of the soft PAH corona and the magnitude of the electric potential of the PAH-wrapped cit-AuNPs (PAH-AuNPs). We also found that when the salt concentration increases, both the soft corona size and the electric potential decrease due to Debye screening. We compared the ligand structures, ion distributions, and electric potentials of 5 different nanoparticles-viz. citrate, PAH, 3-mercapto-propionic acid (MPA), 16-mercapto-hexadecyl-trimethylammonium bromide (MTAB), and hexadecyl-trimethylammonium bromide (CTAB) capped AuNPs. We found that when the surface charge densities are similar, these 5 different nanoparticles have similar electric potential profiles, but their ligand structures differ. Using Debye-H
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Registered trials
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