Recovery and redispersion of gold nanoparticles using the self-assembly of a pH sensitive zwitterionic amphiphile

2014 ◽  
Vol 50 (85) ◽  
pp. 12933-12936 ◽  
Author(s):  
Clara Morita-Imura ◽  
Yoshiro Imura ◽  
Takeshi Kawai ◽  
Hitoshi Shindo
Keyword(s):  
Gold Nanoparticles ◽  
Self Assembly ◽  
Au Nanoparticles ◽  
Ph Sensitive ◽  
The Self ◽  
Ph Responsive

The pH-responsive self-assembly of a zwitterionic amphiphile was expanded to the recovery of gold (Au) nanoparticles. Multilayered lamellae were incorporated into the nanoparticles. Redispersion of nanoparticles was achieved by the transition of self-assembly based on pH.

Size-controlled preparation of gold nanoparticles with novel pH responsive gemini amphiphiles

2015 ◽  
Vol 3 (24) ◽  
pp. 6334-6340 ◽  
Author(s):  
Li Cheng ◽  
Xuefeng Li ◽  
Jinfeng Dong
Keyword(s):  
Gold Nanoparticles ◽  
Au Nanoparticles ◽  
Phase Transfer ◽  
Ph Sensitive ◽  
Ph Responsive ◽  
Gemini Amphiphiles ◽  
Controlled Preparation ◽  
Size Controlled

Novel pH sensitive Di-CnPh gemini amphiphiles can act as both the phase-transfer reagent and stabilizer to make extremely small Au nanoparticles.

pH-Sensitive Reversible Programmed Targeting Strategy by the Self-Assembly/Disassembly of Gold Nanoparticles

2017 ◽  
Vol 9 (20) ◽  
pp. 16767-16777 ◽  
Author(s):  
Jinlong Ma ◽  
Zhenpeng Hu ◽  
Wei Wang ◽  
Xinyu Wang ◽  
Qiang Wu ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Self Assembly ◽  
Ph Sensitive ◽  
The Self ◽  
Targeting Strategy

Facile fabrication of pH-sensitive peptide–inorganic hollow spheres using a template-free method

2017 ◽  
Vol 5 (24) ◽  
pp. 4569-4573 ◽  
Author(s):  
Huiqin Yang ◽  
Deqiang Chen ◽  
Ruiqiu Xiao ◽  
Hongzhen Guo ◽  
Xiang Liu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Phosphotungstic Acid ◽  
Hollow Spheres ◽  
Ph Sensitive ◽  
The Self ◽  
Ph Responsive ◽  
Facile Fabrication ◽  
Template Free

The self-assembly of a heptapeptide and phosphotungstic acid into hollow spheres with pH-responsive properties was achieved using a template-free method.

Construction of a pH-sensitive self-assembly in aqueous solutions based on a dansyl-modified β-cyclodextrin

Soft Matter ◽  
2021 ◽  
Author(s):  
Bing Jiang ◽  
Yu Liu ◽  
Linlin Zhao ◽  
Li Zhao ◽  
Ce Wang ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Self Assembly ◽  
Ph Sensitive ◽  
Ph Responsive ◽  
Ph Range

Here we present a pH-responsive self-assembly based on a β-cyclodextrin (β-CD) derivative bearing a dansyl terminus (βCD-C6-Dns). Vesicular structures were formed over the entire studied pH range (8.5-0.7); however, the...

scholarly journals Cylindrical Micelles by the Self-Assembly of Crystalline-b-Coil Polyphosphazene-b-P2VP Block Copolymers. Stabilization of Gold Nanoparticles

Molecules ◽  
2019 ◽  
Vol 24 (9) ◽  
pp. 1772 ◽  
Author(s):  
Maria de los Angeles Cortes ◽  
Raquel de la Campa ◽  
Maria Luisa Valenzuela ◽  
Carlos Díaz ◽  
Gabino A. Carriedo ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Block Copolymers ◽  
Self Assembly ◽  
Cationic Polymerization ◽  
The Self ◽  
The Novel ◽  
Selective Solvent ◽  
The Core ◽  
Cylindrical Micelles ◽  
Main Factor

During the last number of years a variety of crystallization-driven self-assembly (CDSA) processes based on semicrystalline block copolymers have been developed to prepare a number of different nanomorphologies in solution (micelles). We herein present a convenient synthetic methodology combining: (i) The anionic polymerization of 2-vinylpyridine initiated by organolithium functionalized phosphane initiators; (ii) the cationic polymerization of iminophosphoranes initiated by –PR2Cl2; and (iii) a macromolecular nucleophilic substitution step, to prepare the novel block copolymers poly(bistrifluoroethoxy phosphazene)-b-poly(2-vinylpyridine) (PTFEP-b-P2VP), having semicrystalline PTFEP core forming blocks. The self-assembly of these materials in mixtures of THF (tetrahydrofuran) and 2-propanol (selective solvent to P2VP), lead to a variety of cylindrical micelles of different lengths depending on the amount of 2-propanol added. We demonstrated that the crystallization of the PTFEP at the core of the micelles is the main factor controlling the self-assembly processes. The presence of pyridinyl moieties at the corona of the micelles was exploited to stabilize gold nanoparticles (AuNPs).

Design of a reversible inversed pH-responsive caged protein

2015 ◽  
Vol 3 (4) ◽  
pp. 627-635 ◽  
Author(s):  
Tao Peng ◽  
Hwankyu Lee ◽  
Sierin Lim
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Ph Responsive ◽  
Potential Applications ◽  
Assembly Behavior

Controlling the self-assembly behavior of caged proteins expands their potential applications in nanotechnology.

Stabilization of α-helices by the self-assembly of macrocyclic peptides on the surface of gold nanoparticles for molecular recognition

2013 ◽  
Vol 49 (69) ◽  
pp. 7617 ◽  
Author(s):  
Boram Kim ◽  
Sung-ju Choi ◽  
So-hee Han ◽  
Kang-Yell Choi ◽  
Yong-beom Lim
Keyword(s):  
Gold Nanoparticles ◽  
Molecular Recognition ◽  
Self Assembly ◽  
The Self ◽  
Macrocyclic Peptides

scholarly journals Chemically coded time-programmed self-assembly

2017 ◽  
Vol 2 (3) ◽  
pp. 274-282 ◽  
Author(s):  
Eszter Tóth-Szeles ◽  
Judit Horváth ◽  
Gábor Holló ◽  
Rózsa Szűcs ◽  
Hideyuki Nakanishi ◽  
...  
Keyword(s):  
Self Assembly ◽  
Building Blocks ◽  
The Self ◽  
Ph Responsive ◽  
Clock Reaction

Coupling of a pH clock reaction (activation) with lactone hydrolysis (deactivation) can control and drive the self-assembly of pH-responsive building blocks.

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