Two-dimensional assembly of gold nanoparticles grafted with charged-end-group polymers

HJ Kim, BP Nayak, H Zhang, BM Ocko… - Journal of Colloid and …, 2023 - Elsevier
Hypothesis Introducing charged terminal groups to polymers that graft nanoparticles enable
Coulombic control over their assembly by tuning the pH and salinity of their aqueous …

Binary superlattices of gold nanoparticles in two dimensions

HJ Kim, W Wang, H Zhang, G Freychet… - The Journal of …, 2022 - ACS Publications
We have created two-dimensional (2D) binary superlattices by cocrystallizing gold
nanoparticles (AuNPs) of two distinct sizes into√ 3×√ 3 and 2× 2 complex binary …

Hydrogen Bond Network Disruption by Hydration Layers in Water Solutions with Salt and Hydrogen-Bonding Polymers (PEO)

E Macias, A Travesset - The Journal of Physical Chemistry B, 2023 - ACS Publications
A mean field theory model describing the interaction of ion hydration layers with the network
of hydrogen bonds of both water and the nonionic polymer poly (ethylene oxide)(PEO) is …

Dynamic Assembly of Polymer-Tethered Gold Nanoparticles into a 2D Superlattice at the Air–Liquid Interface: Influence of the Polymer Structure and Solvent Vapor

Y Gao, X Xu, Y Wang, Z Chen, Y Zhou, B **ong… - …, 2022 - ACS Publications
The two-dimensional (2D) superlattice obtained by self-assembly of gold nanoparticle (NPs)
at the air–liquid interface shows a wide range of potential applications in catalysis, sensing …

Tuning Self-Assembly of Gold Nanoparticles Grafted with Charged Polymers by Varying Temperature and Electrolytes

BP Nayak, HJ Kim, A Travesset, D Vaknin… - The Journal of …, 2023 - ACS Publications
We report on the assembly of gold nanoparticles (AuNPs, 5 and 10 nm core diameters)
grafted with poly (ethylene glycol)(PEG) terminated with either positively (− NH2) or …

Lamellar and Hexagonal Assemblies of PEG-Grafted Silver Nanoparticles: Implications for Plasmonics and Photonics

HJ Kim, W Wang, W Bu… - ACS Applied Nano …, 2022 - ACS Publications
Assembly of silver nanoparticles (AgNPs) grafted with thiolated poly (ethylene glycol)(PEG-
SH) with various molecular weights is reported. Synchrotron-based X-ray surface-sensitive …

Ionic-like Superlattices by Charged Nanoparticles: A Step Toward Photonics Applications

BP Nayak, H Zhang, W Bu, BM Ocko… - ACS Applied Nano …, 2024 - ACS Publications
Controlling interactions among nanoparticles is paramount to achieving assemblies vital to
technologies seeking to exploit their cutting-edge collective properties. Although various …

Templated self-organization of polymer-tethered gold nanoparticles into freestanding superlattices at the liquid–air interface

Y Gao, L Wan, Y Song, S Gao, N Yan, F Wu… - Physical Chemistry …, 2025 - pubs.rsc.org
Programmable organization of uniform organic/inorganic functional building blocks into
large-scale ordered superlattices has attracted considerable attention since the bottom-up …

Gold Nanoprobes Exploring the Ice Structure in the Aqueous Dispersion of Poly (Ethylene Glycol)–Gold Hybrid Nanoparticles

P Zhang, R Zou, S Wu, LA Meyer, J Wang, T Kraus - Langmuir, 2022 - ACS Publications
Ice structures and their formation process are fundamentally important to cryobiology,
geoscience, and physical chemistry. In this work, we synthesized gold nanoprobes by …

Effect of grafting density on the two-dimensional assembly of nanoparticles

BP Nayak, JE Batey, HJ Kim, W Wang, W Bu… - Applied Surface …, 2025 - Elsevier
Employing grazing-incidence small-angle X-ray scattering (GISAXS) and X-ray reflectivity
(XRR), we demonstrate that films composed of polyethylene glycol (PEG)-grafted silver …