scholarly journals Dual Stimuli‐Responsive Self‐Assembly Behavior of a Tailor‐Made ABC‐Type Amphiphilic Tri‐Block Copolymer

2020 ◽  
Vol 58 (6) ◽  
pp. 843-851 ◽  
Author(s):  
Sanjay Pal ◽  
Michael Kather ◽  
Sovan Lal Banerjee ◽  
Pabitra Saha ◽  
Andrij Pich ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Self Assembly ◽  
Stimuli Responsive ◽  
Assembly Behavior

Photo- and Thermo-Dual-Responsive Organic/Inorganic Hybrid Materials

2013 ◽  
Vol 538 ◽  
pp. 181-184 ◽  
Author(s):  
Xin De Tang ◽  
Ye Chen ◽  
Fa Qi Yu ◽  
Mei Shan Pei
Keyword(s):  
Block Copolymer ◽  
Hybrid Materials ◽  
Self Assembly ◽  
Polymeric Materials ◽  
Stimuli Responsive ◽  
Inorganic Hybrid ◽  
Dual Responsive ◽  
Hexyl Methacrylate ◽  
Poly Ethylene ◽  
Copolymer Poly

Organic/inorganic hybrid materials based upon stimuli-responsive copolymers have attracted an inceasing attention. Compared with the polymeric materials, these hybrid materials can form aggregates in aqueous solution with much more stable shape-persistance due to the inorganic structure, which facilitate the mass delivery and long-term life. A novel hybrid material based on a new reactive block copolymer, poly(ethylene oxide)-block-poly{3-(trimethoxysilyl)propyl methacrylate-co-N-isopropylacrylamide-co-6-[4-(4-methoxyphenylazo)phenoxy]hexyl methacrylate} [PEO-P(TMSPMA-NIPAM-AzoMA)] was synthesized via atom transfer radical polymerization (ATRP). The vesicles were obtained by self-assembly of the resulting block copolymer in a selective solvent, and then the PTMSPMA block was subjected to hydrolysis and polycondensation reaction to fix vesicle wall in the presence of triethylamine as a catalyst. The photo- and thermo- dual-responsive properties of the vesicles were investigated.

scholarly journals pH- and concentration-dependent supramolecular self-assembly of a naturally occurring octapeptide

2020 ◽  
Vol 16 ◽  
pp. 2017-2025
Author(s):  
Goutam Ghosh ◽  
Gustavo Fernández
Keyword(s):  
Self Assembly ◽  
Ph Value ◽  
Secondary Structures ◽  
Random Coil ◽  
Conformational Transformation ◽  
Stimuli Responsive ◽  
Responsive Materials ◽  
Force Microscopy ◽  
Assembly Behavior ◽  
Novel Drug

Peptide-based biopolymers represent highly promising biocompatible materials with multiple applications, such as tailored drug delivery, tissue engineering and regeneration, and as stimuli-responsive materials. Herein, we report the pH- and concentration-dependent self-assembly and conformational transformation of the newly synthesized octapeptide PEP-1. At pH 7.4, PEP-1 forms β-sheet-rich secondary structures into fractal-like morphologies, as verified by circular dichroism (CD), Fourier-transform infrared (FTIR) spectroscopy, thioflavin T (ThT) fluorescence spectroscopy assay, and atomic force microscopy (AFM). Upon changing the pH value (using pH 5.5 and 13.0), PEP-1 forms different types of secondary structures and resulting morphologies due to electrostatic repulsion between charged amino acids. PEP-1 can also form helical or random-coil secondary structures at a relatively low concentration. The obtained pH-sensitive self-assembly behavior of the target octapeptide is expected to contribute to the development of novel drug nanocarrier assemblies.

scholarly journals A facile strategy for manipulating micellar size and morphology through intramolecular cross-linking of amphiphilic block copolymers

2017 ◽  
Vol 8 (23) ◽  
pp. 3647-3656 ◽  
Author(s):  
Ryoto Tanaka ◽  
Kodai Watanabe ◽  
Takuya Yamamoto ◽  
Kenji Tajima ◽  
Takuya Isono ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Self Assembly ◽  
Amphiphilic Block Copolymers ◽  
Amphiphilic Block Copolymer ◽  
Cross Linking ◽  
Micellar Size ◽  
System P ◽  
Assembly Behavior ◽  
Size And Morphology

The effect of intramolecular cross-linking on aqueous self-assembly behavior was systematically investigated based on an amphiphilic block copolymer system.

Temperature and Photo Dual‐Stimuli Responsive Block Copolymer Self‐Assembly Micelles for Cellular Controlled Drug Release

2020 ◽  
pp. 2000291
Author(s):  
Zi‐Hao Zhou ◽  
Jian‐Guo Zhang ◽  
Qing Chen ◽  
Yan‐Ling Luo ◽  
Feng Xu ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Drug Release ◽  
Self Assembly ◽  
Controlled Drug Release ◽  
Stimuli Responsive

scholarly journals Correction: Novel azobenzene-based amphiphilic copolymers: synthesis, self-assembly behavior and multiple-stimuli-responsive properties

RSC Advances ◽  
2018 ◽  
Vol 8 (32) ◽  
pp. 17878-17878
Author(s):  
Yiting Xu ◽  
Jie Cao ◽  
Qi Li ◽  
Jilu Li ◽  
Kaiwei He ◽  
...  
Keyword(s):  
Self Assembly ◽  
Amphiphilic Copolymers ◽  
Stimuli Responsive ◽  
Assembly Behavior

Correction for ‘Novel azobenzene-based amphiphilic copolymers: synthesis, self-assembly behavior and multiple-stimuli-responsive properties’ by Yiting Xu et al., RSC Adv., 2018, 8, 16103–16113.

Synthesis of poly(styrene-b-4-(tert-butyldimethylsiloxy)styrene) block copolymers and characterization of their self-assembled patterns

2017 ◽  
Vol 2 (5) ◽  
pp. 589-596 ◽  
Author(s):  
Yoon Hyung Hur ◽  
Seung Won Song ◽  
Jimmy Mays ◽  
YongJoo Kim ◽  
Beom-Goo Kang ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Self Assembly ◽  
Self Assembled ◽  
Assembly Behavior

Self-assembly behavior of poly(styrene-b-4-(tert-butyldimethylsiloxy)styrene) (PS-b-P4BDSS) block copolymer and the effect of polydispersity on self-assembled pattern quality.

Self-Assembly Behavior of a Stimuli-Responsive Water-Soluble [60]Fullerene-Containing Polymer

Langmuir ◽  
2004 ◽  
Vol 20 (20) ◽  
pp. 8569-8575 ◽  
Author(s):  
S. Dai ◽  
P. Ravi ◽  
C. H. Tan ◽  
K. C. Tam
Keyword(s):  
Self Assembly ◽  
Water Soluble ◽  
Stimuli Responsive ◽  
Assembly Behavior

scholarly journals Fabrication and in situ functionalisation of mesoporous silica films by the physical entrapment of functional and responsive block copolymer structuring agents

Soft Matter ◽  
2019 ◽  
Vol 15 (40) ◽  
pp. 8077-8083 ◽  
Author(s):  
Jessica C. Tom ◽  
Christian Appel ◽  
Annette Andrieu-Brunsen
Keyword(s):  
Block Copolymer ◽  
Mesoporous Silica ◽  
Self Assembly ◽  
Stimuli Responsive ◽  
Silica Films ◽  
Functional Block ◽  
Evaporation Induced Self Assembly ◽  
Physical Entrapment

Stimuli-responsive mesoporous silica films were prepared by evaporation-induced self-assembly through the physical entrapment of a functional block copolymer structuring agent, which simultaneously serves to functionalise the mesopore.

scholarly journals Controlled nanogel and macrogel structures from self-assembly of a stimuli-responsive amphiphilic block copolymer

RSC Advances ◽  
2016 ◽  
Vol 6 (69) ◽  
pp. 64791-64798 ◽  
Author(s):  
JianCheng Liu ◽  
Christina Uhlir ◽  
Parag K. Shah ◽  
Fang Sun ◽  
Jeffrey W. Stansbury
Keyword(s):  
Block Copolymer ◽  
Self Assembly ◽  
Raft Polymerization ◽  
Amphiphilic Block Copolymer ◽  
Stimuli Responsive

RAFT polymerization was utilized to prepare an amphiphilic block copolymer containing both hydrophilic and hydrophobic segments.

Synthesis and self-assembly behavior of pH-responsive star-shaped POSS-(PCL-P(DMAEMA-co-PEGMA))16 inorganic/organic hybrid block copolymer for the controlled intracellular delivery of doxorubicin

RSC Advances ◽  
2016 ◽  
Vol 6 (66) ◽  
pp. 61630-61640 ◽  
Author(s):  
Lei Li ◽  
Beibei Lu ◽  
Qikui Fan ◽  
Jianning Wu ◽  
Lulu Wei ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Self Assembly ◽  
Tumor Tissue ◽  
Intracellular Delivery ◽  
Ph Responsive ◽  
Acidic Microenvironment ◽  
Organic Hybrid ◽  
Intracellular Release ◽  
Anti Cancer ◽  
Assembly Behavior

Illustration of pH-responsive self-assembly of the star-shaped POSS-(PCL-P(DMAEMA-co-PEGMA))16 copolymer for the efficient intracellular release of anti-cancer drugs triggered by the acidic microenvironment inside the tumor tissue.

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