Noble metal nanoparticle superstructures via liquid/liquid interfacial mass transfer-assisted self-assembly

Li, Shuman; Han, Ming; Liu, Hong-Guo

doi:10.1016/j.apsusc.2020.146136

Cited by 5 publications

(6 citation statements)

References 53 publications

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“…On the basis of the results and our previous works, − the formation process of the lamellar nanosheets in method I is illustrated in Scheme A. DMF, perhaps with a small amount of chloroform, carried a large number of PCDA molecules from the bottom phase and entered into the upper phase across the liquid/liquid interface as soon as the interface formed, due to ouzo effect.…”

Section: Resultsmentioning

confidence: 60%

“…This method was then extended to fabricate superstructures of metal nanoparticles by using aqueous dispersions of nanoparticles as the upper phase and chloroform/DMF solutions of ligands, such as fatty amines, as the bottom phase, respectively. 18 In this work, this method was further extended to fabricate supramolecular aggregates of small amphiphilic molecules. The organic solution was introduced into the aqueous solution gently, and the amphiphilic molecules self-assembled into organized assemblies smoothly.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Because of the miscibility between DMF and water, the DMF molecules in the droplets diffused into water rapidly, and then the amphiphilic block copolymer molecules escaped from the droplets and self-assembled into ordered aggregates, such as a rodlike micelle , and multilayer, which further adsorbed at the air/liquid interface to form thin films. This method was then extended to fabricate superstructures of metal nanoparticles by using aqueous dispersions of nanoparticles as the upper phase and chloroform/DMF solutions of ligands, such as fatty amines, as the bottom phase, respectively . In this work, this method was further extended to fabricate supramolecular aggregates of small amphiphilic molecules.…”

Section: Introductionmentioning

confidence: 99%

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Lamellar Nanosheets of Water-Insoluble Amphiphiles via Aqueous Solution and Air/Liquid Interface Self-Assembly

Liu

2020

Langmuir

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Two-dimensional (2D) lamellar nanostructures have attracted much interest due to their unique structure and properties. Various fabrication methods have been developed in recent years, including solution self-assembly, exfoliation, and Langmuir monolayer and Langmuir–Blodgett (LB) deposition. In this work, two kinds of facile methods were applied to fabricate lamellar structures of amphiphilic molecules, such as 10,12-pentacosadiynoic acid (PCDA). In method I, the amphiphilic molecules were introduced into aqueous solutions with dimethylformamide (DMF), a solvent miscible with water, through a mass transfer process across a planar liquid/liquid interface; in method II, the DMF solution of the amphiphilic molecules was added directly onto the aqueous solution surface. With the spread and diffusion of DMF, nanosheets with lamellar structures formed in the aqueous solution and at the air/liquid interface, respectively. It is very interesting that the nanosheets obtained through these two methods consist of an even number and odd number of PCDA monolayers, respectively, reflecting different fabrication mechanisms. Method I provides an approach to gently mix organic solutions with aqueous solutions, while method II can be regarded as an extension of the Langmuir monolayer technique, which combines the interfacial assembly with that in solution. These methods have been extended to a series of amphiphilic molecules, and ordered layered structures have been obtained successfully.

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Section: Resultsmentioning

confidence: 60%

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Lamellar Nanosheets of Water-Insoluble Amphiphiles via Aqueous Solution and Air/Liquid Interface Self-Assembly

Liu

2020

Langmuir

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“…For instance, Li et al reported a mass transfer‐assisted self‐assembly strategy to synthesize superstructures of noble metal NPs at liquid/liquid interfaces ( Figure 5 a). [ 64 ] In the liquid–liquid interface where inorganic (water) and organic solvents (fatty amines, N,N‐dimethylformamide, and chloroform) were mixed, the NPs in the mixed solution were rearranged to form elliptical or spherical aggregates with the diffusion of organic solvents. As a result, organized aggregates consisting of Au or Ag were fabricated with different structures (e.g., 3D superstructure, 2D networks, and 3D hierarchical structure of spheres and nanorods), guided by amine molecules under suitable reaction conditions.…”

Section: Current Strategies Of Noble Metal Self‐assemblingmentioning

confidence: 99%

Emerging Biosensors Based on Noble Metal Self‐Assembly for In Vitro Disease Diagnosis

Qian²,

Huang

2023

Advanced NanoBiomed Research

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The biosensing systems are powerful tools in characterizing the pathological state of patients, promising in vitro disease diagnosis at an early stage. Noble metals are introduced into emerging biosensors benefiting from their outstanding properties, such as surface plasmon resonance and photothermal conversion. The ordered arrangements of noble metals into superstructures through self‐assembling offer improved selectivity and sensitivity in biosensing disease biomarkers. Herein, the current strategies for preparing noble metal self‐assemblies are summarized, with particular emphasis on the driving forces triggering the assembling process. The functions that noble metal self‐assemblies exert in biosensing systems are then reviewed, highlighting their potential to be integrated into diagnostic applications. It is foreseen that noble metal self‐assembly brings far‐reaching implications in clinical diagnosis, serving as advanced tools to unlock the power of translational medicine.

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“…Nano-operations with DNA to improve cell reparation and wound healing Medicine [191][192][193] Precise drug delivery Medicine [197,198] self-assemblies with gold and silver nanoparticles [180,181]. The 55-atomic gold nanoparticles with a size of ~1 nm deposited on inert materials [182] were found to be a good catalyst for selective oxidation of styrene with oxygen.…”

Section: Goldmentioning

confidence: 99%

Interfacial Synthesis: Morphology, Structure, and Properties of Interfacial Formations in Liquid–Liquid Systems

Golubina

Kizim

2021

Russ. J. Phys. Chem.

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The results of studies in the field of interfacial synthesis and interfacial formations in liquid–liquid systems are summarized. The mechanisms of the processes of interfacial synthesis are considered. Data on the self-assembly of nanoparticles, films, and 3D materials are given. The properties of materials of interfacial formations in systems with rare-earth elements and di(2-ethylhexyl)phosphoric acid, obtained both in the presence and absence of local vibrations, are described. It was established that materials obtained in the presence of local vibrations in the interfacial layer have higher density, melting point, and magnetic susceptibility and lower electric conductivity. The effect of force field parameters on the properties of interfacial formations is considered. Practical applications and prospects for research in the field of interfacial formations are discussed.

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Noble metal nanoparticle superstructures via liquid/liquid interfacial mass transfer-assisted self-assembly

Cited by 5 publications

References 53 publications

Lamellar Nanosheets of Water-Insoluble Amphiphiles via Aqueous Solution and Air/Liquid Interface Self-Assembly

Lamellar Nanosheets of Water-Insoluble Amphiphiles via Aqueous Solution and Air/Liquid Interface Self-Assembly

Emerging Biosensors Based on Noble Metal Self‐Assembly for In Vitro Disease Diagnosis

Interfacial Synthesis: Morphology, Structure, and Properties of Interfacial Formations in Liquid–Liquid Systems

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