Photo-induced transformation of wormlike micelles to spherical micelles in aqueous solution

Soft Matter ◽  
2012 ◽  
Vol 8 (30) ◽  
pp. 7858 ◽  
Author(s):  
Jun Li ◽  
Mingwei Zhao ◽  
Hongtao Zhou ◽  
Hejun Gao ◽  
Liqiang Zheng
Keyword(s):  
Aqueous Solution ◽  
Wormlike Micelles ◽  
Spherical Micelles

Spontaneous wormlike micelles formed in a single-tailed zwitterionic surface-active ionic liquid aqueous solution

Soft Matter ◽  
2017 ◽  
Vol 13 (13) ◽  
pp. 2543-2548 ◽  
Author(s):  
Panpan Sun ◽  
Fei Lu ◽  
Aoli Wu ◽  
Lijuan Shi ◽  
Liqiang Zheng
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquid ◽  
Wormlike Micelles ◽  
Surface Active Ionic Liquid ◽  
Surface Active

Synthesis of Poly(acrylamide-Methacrylate)-G-Octylphenyl Polyoxyethylene and its Micellar Behavior in Aqueous Solution

2011 ◽  
Vol 239-242 ◽  
pp. 3337-3341
Author(s):  
Dong Xia Zhang ◽  
Wen Hui Hu ◽  
Fang Ping Wang ◽  
Lin Ke Xue ◽  
Xin Zhen Du
Keyword(s):  
Aqueous Solution ◽  
Graft Copolymer ◽  
Main Chain ◽  
Radical Copolymerization ◽  
Molar Ratio ◽  
Free Radical Copolymerization ◽  
Transmission Electron ◽  
Spherical Micelles ◽  
Acrylamide Monomer ◽  
Poly Acrylamide

An amphiphilic graft copolymer with poly(acrylamide-methacrylate) as a main chain and octylphenyl polyoxyethylene as side chains (P(AM-MA)-g-C8PhEO10) was successfully synthesized via free radical copolymerization. The structure and the composition of the graft copolymer were characterized by FTIR, 1H-NMR and elemental analysis (EA) in detail. The absolute molecular weight of the copolymer is 1.304×106, as determined by static light scattering (SLS). The molar ratio of acrylamide monomer to the macromonomer is 33:1 in the copolymer and 53 C8PhEO10 branch chains attach to a P(AM-MA) backbone. The micellar behavior of P(AM-MA)-g-C8PhEO10 was preliminarily studied by means of surface tension measurements, transmission electron microscope (TEM) in aqueous solution. It was found that the stable spherical micelles with core-shell structure are formed and polymolecular micelles are larger and more compact than monomolecular micelles. In addition, the graft copolymer has favorable thermal stability.

scholarly journals Preparation of β-CD-DPPE-Dox Nanomedicine and Its’ Application as the Anticancer and Antitumor Drug

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Miaomiao Yan ◽  
Anran Cai ◽  
Jing Li ◽  
Meixiu Xin ◽  
Mingying Liu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Normal Tissue ◽  
Water Solubility ◽  
Biological Test ◽  
Release Behavior ◽  
Loading Ratio ◽  
Spherical Micelles ◽  
Low Cytotoxicity ◽  
Induce Cancer Cell Apoptosis

Abstract β-CD-DPPE molecule was synthesized through the conjugation of β-CD-NH2 and the DPPE molecule, and its’ water-solubility was more excellent than the traditional phospholipid molecule. The spherical micelles was formed by β-CD-DPPE molecule in aqueous solution, and the β-CD-DPPE-Dox nanomedicine can be prepared through loading Dox (Doxorubicin) into the micelles, and the Dox loading ratio was about 82.3 ± 7.27%. At the same time the Dox release behavior from the nanomedicine was sustained-release and pH controlled release, and the release test in vitro showed that the release rate of the Dox at the lower pH was faster than that of normal pH (pH = 7.4), which indicated that the rate of release in the tumor microenvironment is faster than in the normal tissue. Biological test showed that the micelles was low cytotoxicity, and the cytotoxicity of β-CD-DPPE-Dox nanomedicine was lower than the Dox under the same Dox concentration, and the β-CD-DPPE-Dox nanomedicine could effectively induce cancer cell apoptosis and inhibit the tumor growth.

MESOSCOPIC SIMULATION ON THE PHASE STRUCTURE OF PLURONIC P105 AQUEOUS SOLUTION

2010 ◽  
Vol 09 (04) ◽  
pp. 767-783 ◽  
Author(s):  
SHIJIN DONG ◽  
HAITAO ZHANG ◽  
XUEJUN CUI ◽  
ZHENYING SUI ◽  
JIA XU ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Phase Separation ◽  
Ethylene Oxide ◽  
Phase Structure ◽  
Chain Model ◽  
Growth Mechanisms ◽  
Mesoscopic Simulation ◽  
Aggregate Properties ◽  
Spherical Micelles ◽  
Simulation Results

The mesoscopic dynamic simulation (MesoDyn) has been carried out to investigate the phase structure and the aggregate properties of triblock copolymers (ethylene oxide)37 (propylene oxide)56 (ethylene oxide)37 (P105) in aqueous solution. A Gaussian chain model is successfully built according to the equivalent chain method and the Flory–Huggins interaction parameters, χ, used for determining the repulsions between different chain segments are computed. Simulation results show that P105 can form several microstructures including spherical micelles, ellipsoid micellar cluster, worm-like micelles, defective bicontinuous phase, and bicontinuous phase with increasing concentration. A special transition phase structure of P105 is found in the spherical micellar region. The dynamic evolution processes of spherical micelles are investigated by observing the induction time before phase separation and the changing of isosurface during phase separation. The influence of P105 concentration on the density of micelles at equilibrium state is also discussed, which shows that the increase of P105 concentration will lead to the decrease of micelles' amount. Two kinds of growth mechanisms during phase separation are discussed by MesoDyn simulation.

Annular and threadlike wormlike micelles formed by a bio-based surfactant containing an extremely large hydrophobic group

Soft Matter ◽  
2018 ◽  
Vol 14 (4) ◽  
pp. 499-507 ◽  
Author(s):  
Zhaolan Zhai ◽  
Xinyan Yan ◽  
Zhanqian Song ◽  
Shibin Shang ◽  
Xiaoping Rao
Keyword(s):  
Alkyl Chain ◽  
Wormlike Micelles ◽  
Hydrophobic Group ◽  
Spherical Micelles ◽  
Threadlike Micelles ◽  
Large Spherical ◽  
Rigid Group

The overlap of an alkyl chain and a rigid group in C12-MPA-Na promotes the formation of large spherical micelles and annular and threadlike micelles.

Structure and Rheology of Wormlike Micelles Formed by Fluorocarbon–Hydrocarbon-Type Hybrid Gemini Surfactant in Aqueous Solution

Langmuir ◽  
2017 ◽  
Vol 33 (24) ◽  
pp. 6084-6091 ◽  
Author(s):  
Ken Morishima ◽  
Seiya Sugawara ◽  
Tomokazu Yoshimura ◽  
Mitsuhiro Shibayama
Keyword(s):  
Aqueous Solution ◽  
Gemini Surfactant ◽  
Wormlike Micelles

scholarly journals Nanostructures by self-assembly of polyglycidol-derivatized lipids

RSC Advances ◽  
2014 ◽  
Vol 4 (70) ◽  
pp. 37208-37219 ◽  
Author(s):  
Pavel Bakardzhiev ◽  
Stanislav Rangelov ◽  
Barbara Trzebicka ◽  
Denitsa Momekova ◽  
Georgi Lalev ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Self Assembly ◽  
Lamellar Structures ◽  
Dilute Aqueous Solution ◽  
Spherical Micelles

Polyglycidol-derivatized lipids were successfully prepared and their self-assembly in dilute aqueous solution into spherical micelles and lamellar structures was investigated.

scholarly journals Converse transitions between the micelles and the vesicles of pyrrolidone-based AIE amphiphilic copolymers in polar and apolar solvents

RSC Advances ◽  
2019 ◽  
Vol 9 (48) ◽  
pp. 28102-28111 ◽  
Author(s):  
Xiaolong He ◽  
Beibei Wang ◽  
Xuefeng Li ◽  
Jinfeng Dong
Keyword(s):  
Wormlike Micelles ◽  
Amphiphilic Copolymers ◽  
Spherical Micelles

A series of AIE-active amphiphilic copolymers, PNMPx-b-P(LMAy-co-TPEz), were developed as bioimaging probes. Converse transitions from spherical micelles to vesicles via wormlike micelles of them in water and n-dodecane were happened, respectively.

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