Air‐Liquid Interfacial Self‐Assembly of Two‐Dimensional Periodic Nanostructured Arrays

Abstract

The large‐scale fabrication of two‐dimensional periodic nanostructures in high quality holds great promises for building novel nanoscale devices. They have been conventionally produced using interface‐mediated self‐assembly strategies such as the Langmuir‐Blodgett and oil‐water interfacial assembly methods, which however are limited by the stringent requirements for the hydrophilicity/hydrophobicity of the particle surface. In this article, we review the recent progress on the air‐liquid interfacial self‐assembly to demonstrate that such strategies are simple, inexpensive, effective, scalable, and versatile in the fabrication of two‐dimensional periodic nanostructured arrays. They can be successfully employed to assemble nanoparticles of various compositions and surface properties into periodic nanostructured monolayer films, which find many important applications, for example, in the construction of colorimetric sensors for gas, chemical, and biomedical detection.

Structural order in plasmonic superlattices

“…Consequently, complementary SAXS measurements for comparison are recommendable for the characterization of superlattices in general. AuNP superlattices covering large areas have been reported in several pioneering studies and recent reviews are available 10,[39][40][41][42][43][44][45][46][47]59,60 , but the crystalline order presented herein is unprecedented to the best of our knowledge. With increasing number of layers, the superlattices can be described as welldefined AuNP-supercrystals ( Fig.…”

Insect-inspired nanofibrous polyaniline multi-scale films for hybrid polarimetric imaging with scattered light

“…Adsorption of the PS nanospheres at the air-water interface is thermodynamically favorable and solvent convection squeezes the nanospheres into the close-packed assemblies. 53 The PS film is collected on a glass substrate, left to dry, and transferred to the PANI synthesis solution. During the transfer, due to the minimization of the surface energy, the PS film peels off the substrate and settles on top of the solution.…”

From Dilute to Multiple Layers: Bottom‐Up Self‐Assembly of Rough Gold Nanorods as SERS Platform for Quantitative Detection of Thiram in Soil

“…[ 10–15 ] To date, several techniques have been proposed to develop SERS‐active substrates including in situ growth, [ 16,17 ] top‐down lithography, [ 18–23 ] and bottom‐up self‐assembly technique. [ 24–26 ] Among these techniques, bottom‐up self‐assembly is a simple, scalable, and low‐cost approach to achieve uniform and highly effective SERS substrates, such as droplet evaporation, [ 27–29 ] electrostatic interaction, [ 30,31 ] and interface self‐assembly. [ 32–37 ]…”