Nanocrystal programmable assembly beyond hard spheres (or shapes) and other (simple) potentials

A Travesset - Current Opinion in Solid State and Materials Science, 2024 - Elsevier
Ligands are the key to almost any strategy in the assembly of programmable nanocrystals
(or nanoparticles) and must be accurately considered in any predictive model. Hard Spheres …

Coarse-Grained Many-Body Potentials of Ligand-Stabilized Nanoparticles from Machine-Learned Mean Forces

G Giunta, G Campos-Villalobos, M Dijkstra - ACS nano, 2023 - ACS Publications
Colloidal nanoparticles self-assemble into a variety of superstructures with distinctive
optical, structural, and electronic properties. These nanoparticles are usually stabilized by a …

High-Precision Calculation of Nanoparticle (Nanocrystal) Potentials of Mean Force and Internal Energies

A Upah, A Thomas, J Hallstrom… - Journal of Chemical …, 2023 - ACS Publications
Thermodynamic stability assessment of nanocrystal systems requires precise free energy
calculations. This study highlights the importance of meticulous control over various factors …

Machine-learning effective many-body potentials for anisotropic particles using orientation-dependent symmetry functions

G Campos-Villalobos, G Giunta… - The Journal of …, 2022 - pubs.aip.org
Spherically symmetric atom-centered descriptors of atomic environments have been widely
used for constructing potential or free energy surfaces of atomistic and colloidal systems and …

Capping ligand vortices as “atomic orbitals” in nanocrystal self-assembly

C Waltmann, N Horst, A Travesset - ACS nano, 2017 - ACS Publications
We present a detailed analysis of the interaction between two nanocrystals capped with
ligands consisting of hydrocarbon chains by united atom molecular dynamics simulations …

The phase behavior of nanoparticle superlattices in the presence of a solvent

LL Missoni, M Tagliazucchi - ACS nano, 2020 - ACS Publications
Superlattices of nanoparticles coated by alkyl-chain ligands are usually prepared from a
stable solution by evaporation, therefore the pathway of superlattice self-assembly critically …

Body centered tetragonal nanoparticle superlattices: why and when they form?

L Missoni, M Tagliazucchi - Nanoscale, 2021 - pubs.rsc.org
Body centered tetragonal (BCT) phases are structural intermediates between body centered
cubic (BCC) and face centered cubic (FCC) structures. However, BCC↔ FCC transitions …

Many body effects and icosahedral order in superlattice self-assembly

T Waltmann, C Waltmann, N Horst… - Journal of the American …, 2018 - ACS Publications
We elucidate how nanocrystals “bond” to form ordered structures. For that purpose we
consider nanocrystal configurations consisting of regular polygons and polyhedra, which are …

[HTML][HTML] Pair and many-body interactions between ligated Au nanoparticles

ER Liepold, A Smith, B Lin, J De Pablo… - The Journal of chemical …, 2019 - pubs.aip.org
We report the results of molecular dynamics simulations of the properties of a pseudo-atom
(united atom) model of dodecane thiol ligated 5-nm diameter gold nanoparticles (AuNPs) in …

Deconstructing Electrostatics of Functionalized Metal Nanoparticles from Molecular Dynamics Simulations

M Bini, V Tozzini, G Brancolini - The Journal of Physical Chemistry …, 2023 - ACS Publications
Gold nanoparticles (NPs) with different surface functionalizations can selectively interact
with specific proteins, allowing a wide range of possible applications in biotechnology and …