Function from Confinement: Ligand-Coated Nanoparticles as Functional Materials
Euan R. Kay, Volodymyr Sashuk, Bartosz A. Grzybowski, Fabrizio Mancin, Federico Rastrelli, Verónica Montes-García, Giulio Ragazzon, Paolo Pengo, Lucia Pasquato, Paola Posocco
TL;DR
This paper reviews how ligand-coated nanoparticles can be designed to perform complex functions by leveraging the properties of their organic surface layers.
Contribution
The paper introduces a systems-chemistry perspective to understand and design functional nanomaterials with active organic layers.
Findings
Ligand-coated nanoparticles exhibit emergent properties due to nanoconfinement and collective interactions.
The organic layer can drive functions like catalysis, sensing, and programmable assembly.
Design principles for hybrid organic–inorganic nanosystems are proposed based on chemical constitution.
Abstract
For nanoparticles stabilized by self-assembled monolayers, the surface-bound molecular species not only modify the core material properties but also provide a handle for interaction with other components, whether they are molecular, nanoscale, or even macroscopic. Importantly, when confined to nanosurfaces, these organic entities exhibit emergent properties that impart unique functionalities to the underlying nanomaterial. In this Review, we examine how these capabilities originate from the structural organization and collective interactions within on-nanoparticle self-assembled monolayers, drawing on examples of quasi-spherical nanoparticles smaller than ca. 8 nm in size. Our focus spans four key categories of function: (i) catalysis and chemical transformation under nanoconfinement, (ii) molecular recognition and sensing, (iii) switching and adaptation, and (iv) programmable…
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Taxonomy
TopicsGold and Silver Nanoparticles Synthesis and Applications · Surface Chemistry and Catalysis · Dendrimers and Hyperbranched Polymers