A General Approach to Free-Standing Nanoassemblies via Acoustic Levitation Self-Assembly

ACS Nano ◽  
2019 ◽  
Vol 13 (5) ◽  
pp. 5243-5250 ◽  
Author(s):  
Qianqian Shi ◽  
Wenli Di ◽  
Dashen Dong ◽  
Lim Wei Yap ◽  
Lin Li ◽  
...  
Keyword(s):  
Self Assembly ◽  
Acoustic Levitation ◽  
Free Standing

Free-Standing Gold-Nanoparticle Monolayer Film Fabricated by Protein Self-Assembly of α-Synuclein

2015 ◽  
Vol 127 (15) ◽  
pp. 4654-4659 ◽  
Author(s):  
Junghee Lee ◽  
Ghibom Bhak ◽  
Ji-Hye Lee ◽  
Woohyun Park ◽  
Minwoo Lee ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Self Assembly ◽  
Monolayer Film ◽  
Free Standing

Two-dimensional gold trisoctahedron nanoparticle superlattice sheets: self-assembly, characterization and immunosensing applications

Nanoscale ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 5065-5071 ◽  
Author(s):  
Dashen Dong ◽  
Lim Wei Yap ◽  
Detlef M. Smilgies ◽  
Kae Jye Si ◽  
Qianqian Shi ◽  
...  
Keyword(s):  
Self Assembly ◽  
Two Dimensional ◽  
Free Standing

Free-standing gold trisoctahedron superlattice nanosheet is successfully fabricated, characterized, which can serve as a novel immunosensor.

Polymer induced one-step interfacial self-assembly method for the fabrication of flexible, robust and free-standing SERS substrates for rapid on-site detection of pesticide residues

Nanoscale ◽  
2019 ◽  
Vol 11 (27) ◽  
pp. 12829-12836 ◽  
Author(s):  
Peng Wu ◽  
Lu-Bin Zhong ◽  
Qing Liu ◽  
Xi Zhou ◽  
Yu-Ming Zheng
Keyword(s):  
Pesticide Residue ◽  
Self Assembly ◽  
Pesticide Residues ◽  
Free Standing ◽  
Sers Substrates ◽  
Residue Detection ◽  
Assembly Method ◽  
One Step

A polymer induced one-step interfacial self-assembly method was developed to fabricate flexible, robust and free-standing SERS substrates for rapid pesticide residue detection.

Free-standing, anti-corrosion, super flexible graphene oxide/silver nanowire thin films for ultra-wideband electromagnetic interference shielding

2021 ◽  
Author(s):  
Hui Jia ◽  
Xiao Yang ◽  
Qing-Qiang Kong ◽  
Li-Jing Xie ◽  
Quan-Gui Guo ◽  
...  
Keyword(s):  
Thin Films ◽  
Graphene Oxide ◽  
Self Assembly ◽  
Electromagnetic Interference ◽  
Silver Nanowire ◽  
Ultra Wideband ◽  
Electromagnetic Interference Shielding ◽  
Free Standing ◽  
Emi Se ◽  
Ag Nanowire

A free-standing graphene oxide/Ag nanowire film with a dense sandwich-like structure was fabricated via vacuum-assisted self-assembly. The EMI SE is up to 62 dB when the thickness is merely 8 μm in 8–40 GHz. The corresponding specific SE (EMI SE/t) is up to 77 500 dB cm−1.

Facile fabrication of free-standing colloidal-crystal films by interfacial self-assembly

2011 ◽  
Vol 353 (1) ◽  
pp. 16-21 ◽  
Author(s):  
Jianan Zhang ◽  
Mozhen Wang ◽  
Xuewu Ge ◽  
Mingyuan Wu ◽  
Qingyun Wu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Colloidal Crystal ◽  
Free Standing ◽  
Crystal Films ◽  
Facile Fabrication

scholarly journals Free-standing supramolecular hydrogel objects by reaction-diffusion

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Matija Lovrak ◽  
Wouter E. J. Hendriksen ◽  
Chandan Maity ◽  
Serhii Mytnyk ◽  
Volkert van Steijn ◽  
...  
Keyword(s):  
Structure Formation ◽  
Self Assembly ◽  
Reaction Diffusion ◽  
Building Blocks ◽  
Assembly Process ◽  
Supramolecular Hydrogel ◽  
Free Standing ◽  
Spatial Control ◽  
Self Assembling ◽  
Vast Range

Abstract Self-assembly provides access to a variety of molecular materials, yet spatial control over structure formation remains difficult to achieve. Here we show how reaction–diffusion (RD) can be coupled to a molecular self-assembly process to generate macroscopic free-standing objects with control over shape, size, and functionality. In RD, two or more reactants diffuse from different positions to give rise to spatially defined structures on reaction. We demonstrate that RD can be used to locally control formation and self-assembly of hydrazone molecular gelators from their non-assembling precursors, leading to soft, free-standing hydrogel objects with sizes ranging from several hundred micrometres up to centimeters. Different chemical functionalities and gradients can easily be integrated in the hydrogel objects by using different reactants. Our methodology, together with the vast range of organic reactions and self-assembling building blocks, provides a general approach towards the programmed fabrication of soft microscale objects with controlled functionality and shape.

From supramolecular chemistry to nanotechnology: Assembly of 3D nanostructures

2009 ◽  
Vol 81 (12) ◽  
pp. 2225-2233 ◽  
Author(s):  
Xing Yi Ling ◽  
David N. Reinhoudt ◽  
Jurriaan Huskens
Keyword(s):  
Supramolecular Chemistry ◽  
Self Assembly ◽  
Supramolecular Assembly ◽  
Fine Tuning ◽  
Nanoparticle Assembly ◽  
Layer By Layer ◽  
Surface Binding ◽  
Free Standing ◽  
Functionalized Nanoparticles ◽  
Assembled Monolayers

Fabricating well-defined and stable nanoparticle crystals in a controlled fashion receives growing attention in nanotechnology. The order and packing symmetry within a nanoparticle crystal is of utmost importance for the development of materials with unique optical and electronic properties. To generate stable and ordered 3D nanoparticle structures, nanotechnology is combined with supramolecular chemistry to control the self-assembly of 2D and 3D receptor-functionalized nanoparticles. This review focuses on the use of molecular recognition chemistry to establish stable, ordered, and functional nanoparticle structures. The host–guest complexation of β-cyclodextrin (CD) and its guest molecules (e.g., adamantane and ferrocene) are applied to assist the nanoparticle assembly. Direct adsorption of supramolecular guest- and host-functionalized nanoparticles onto (patterned) CD self-assembled monolayers (SAMs) occurs via multivalent host–guest interactions and layer-by-layer (LbL) assembly. The reversibility and fine-tuning of the nanoparticle-surface binding strength in this supramolecular assembly scheme are the control parameters in the process. Furthermore, the supramolecular nanoparticle assembly has been integrated with top-down nanofabrication schemes to generate stable and ordered 3D nanoparticle structures, with controlled geometries and sizes, on surfaces, other interfaces, and as free-standing structures.

Layer-by-layer self-assembly, controllable disintegration of polycarboxybetaine multilayers and preparation of free-standing films at physiological conditions

2010 ◽  
Vol 20 (8) ◽  
pp. 1467-1474 ◽  
Author(s):  
Zhangliang Gui ◽  
Jinwen Qian ◽  
Quanfu An ◽  
Qiang Zhao ◽  
Huangtao Jin ◽  
...  
Keyword(s):  
Self Assembly ◽  
Layer By Layer ◽  
Free Standing ◽  
Physiological Conditions

scholarly journals Facile synthesis of lignosulfonate-graphene porous hydrogel for effective removal of Cr(VI) from aqueous solution

BioResources ◽  
2019 ◽  
Vol 14 (3) ◽  
pp. 7001-7014
Author(s):  
Zhili Zhang ◽  
Fengfeng Li ◽  
Xingxiang Ji ◽  
Jiachuan Chen ◽  
Guihua Yang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Self Assembly ◽  
Free Standing ◽  
Environmental Friendliness ◽  
Surface Areas ◽  
Assembly Method ◽  
Effective Removal ◽  
The Cost ◽  
Adsorption Desorption ◽  
Porous Hydrogel

A green and facile fabrication strategy for synthesis of lignosulfonate-graphene porous hydrogel (LGPH) was designed via incorporation of lignosulfonate (LS) into graphene oxide (GO). This process was achieved by a simple self-assembly method at low temperature, with LS serving as surface functionalization agent. Benefiting from the abundant functional groups of LS and the large surface areas of graphene oxide, the prepared LGPH hydrogel displayed 3D interconnected pores and exhibited an excellent adsorption capacity for Cr(VI) (601.2 mg/g) ions dissolved in water. Importantly, the free-standing LGPH was easily separated from water after the adsorption process, and the adsorption capacities of Cr(VI) onto LGPH maintained 439.1 mg/g after 5 adsorption-desorption cycles. The cost-effectiveness and environmental friendliness of LGPH make it a promising material for removing heavy metals from wastewater.

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