The synthesis and comparison of poly(methacrylic acid)–poly(ε-caprolactone) block copolymers with and without symmetrical disulfide linkages in the center for enhanced cellular uptake

RSC Advances ◽  
2016 ◽  
Vol 6 (79) ◽  
pp. 75092-75103 ◽  
Author(s):  
Yu-Sheng Liu ◽  
Shih-Jer Huang ◽  
Xiao-Shan Huang ◽  
Yi-Ting Wu ◽  
Hsuan-Ying Chen ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Cellular Uptake ◽  
Methacrylic Acid ◽  
Ph Sensitive ◽  
Disulfide Linkage ◽  
Disulfide Linkages ◽  
Sensitive Characteristics ◽  
Self Assembled ◽  
Symmetrical Disulfide

A self-assembled poly(methacrylic acid)–poly(ε-caprolactone) block copolymer with a disulfide linkage, PMAA-b-PCL-SS-PCL-b-PMAA, was synthesized for enhanced cellular uptake due to a reduction response to GSH and pH-sensitive characteristics.

Self-Assembly of Block Copolymers for Photonic-Bandgap Materials

MRS Bulletin ◽  
2005 ◽  
Vol 30 (10) ◽  
pp. 721-726 ◽  
Author(s):  
Jongseung Yoon ◽  
Wonmok Lee ◽  
Edwin L. Thomas
Keyword(s):  
Molecular Weight ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Photonic Crystals ◽  
Liquid Crystalline ◽  
Photonic Bandgap ◽  
Photonic Bandgap Materials ◽  
Periodic Microstructures ◽  
Self Assembled ◽  
Bandgap Materials

AbstractSelf-assembled block copolymer systems with an appropriate molecular weight to produce a length scale that will interact with visible light are an alternative platform material for the fabrication of large-area, well-ordered photonic-bandgap structures at visible and near-IR frequencies.Over the past years, one-, two-, and three-dimensional photonic crystals have been demonstrated with various microdomain structures created through microphase separation of block copolymers. The size and shape of periodic microstructures of block copolymers can be readily tuned by molecular weight, relative composition of the copolymer, and blending with homopolymers or plasticizers.The versatility of photonic crystals based on block copolymers is further increased by incorporating inorganic nanoparticles or liquid-crystalline guest molecules (or using a liquid-crystalline block), or by selective etching of one of the microdomains and backfilling with high-refractive-index materials. This article presents an overview of photonic-bandgap materials enabled by self-assembled block copolymers and discusses the morphology and photonic properties of block-copolymer-based photonic crystals containing nanocomposite additives.We also provide a view of the direction of future research, especially toward novel photonic devices.

scholarly journals Polymer-based multiferroic nanocomposites via directed block copolymer self-assembly

2019 ◽  
Vol 7 (4) ◽  
pp. 968-976 ◽  
Author(s):  
Ivan Terzić ◽  
Niels L. Meereboer ◽  
Harm Hendrik Mellema ◽  
Katja Loos
Keyword(s):  
Magnetic Nanoparticles ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Self Assembly ◽  
Self Assembled

Directed dispersion of magnetic nanoparticles inside self-assembled ferroelectric block copolymers holds promises for future improved multiferroics.

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.

scholarly journals pH-sensitive wettability induced by topological and chemical transition on the self assembled surface of block copolymer

2013 ◽  
Vol 32 (1) ◽  
pp. 92-97 ◽  
Author(s):  
Zhi Geng ◽  
Song Guan ◽  
He-ming Jiang ◽  
Long-cheng Gao ◽  
Zhi-wen Liu ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Ph Sensitive ◽  
The Self ◽  
Self Assembled

scholarly journals Gold-Loaded Organic/Inorganic Nanocomposite Honeycomb Membranes

2006 ◽  
Vol 59 (8) ◽  
pp. 539 ◽  
Author(s):  
Kok Hou Wong ◽  
Thomas P. Davis ◽  
Christopher Barner-Kowollik ◽  
Martina H. Stenzel
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Raft Polymerization ◽  
Porous Films ◽  
Breath Figures ◽  
Vinyl Pyridine ◽  
Self Assembled ◽  
Gold Nanocomposites ◽  
Hydrolysis Of ◽  
Porous Array

RAFT polymerization was used to prepare polystyrene – poly(4-vinyl pyridine) block copolymers, PSn-b-P(4VP)m. Well-defined block copolymers were obtained despite some indications of hydrolysis of the RAFT endgroup during synthesis. The block copolymer PS70-b-P(4VP)55 was self-assembled into micellar structures in dichloromethane, leading to nanoparticles with hydrodynamic diameters of 70 nm. The micelles were loaded with HAuCl4 and, upon reduction, micellar gold-containing nanoparticles with hydrodynamic diameters of 240 nm were obtained. These nanoparticles were employed in the preparation of honeycomb-structured porous films by means of the breath figures technique to yield gold nanocomposites with a hexagonal porous array.

Guide Pattern for Long-Range-Order Nanofabrication of Self-Assembled Block Copolymers

2010 ◽  
Vol 459 ◽  
pp. 124-128 ◽  
Author(s):  
Takashi Akahane ◽  
Miftakhul Huda ◽  
You Yin ◽  
Sumio Hosaka
Keyword(s):  
Electron Beam ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Long Range ◽  
Range Order ◽  
Long Range Order ◽  
Self Assembled ◽  
Guide Lines

In this paper, we report two kinds of guide patterns precisely created by electron beam drawing. These guide patterns are expected to precisely control the arrangement of nanodots self-assembled from block copolymer (BCP) in order to obtain long-range-order nanofabrication. The first guide pattern is comprised only of a post lattice. The second guide pattern adds guide lines to the post lattice. The added guide lines are expected to better control the location and orientation of the BCP nanodots. We succeeded in fabricating these two kinds of guide patterns for 22-nm- and 33-nm-pitch BCP nanodots.

Disassembly and tumor-targeting drug delivery of reduction-responsive degradable block copolymer nanoassemblies

2019 ◽  
Vol 10 (13) ◽  
pp. 1554-1568 ◽  
Author(s):  
Jung Kwon Oh
Keyword(s):  
Drug Delivery ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Tumor Targeting ◽  
Intracellular Drug Delivery ◽  
Disulfide Linkages

Review on recent strategies to synthesize novel disulfide-containing reductively-degradable block copolymers and their nanoassemblies as being classified with the number, position, and location of the disulfide linkages toward effective tumor-targeting intracellular drug delivery exhibiting enhanced release of encapsulated drugs.

The Core Composition of DNA Block Copolymer Micelles Dictates DNA Hybridization Properties, Nuclease Stabilities, and Cellular Uptake Efficiencies

Nanoscale ◽  
2021 ◽  
Author(s):  
Chan-Jin Kim ◽  
Ga-Hyun Kim ◽  
Eun Hye Jeong ◽  
Hyukjin Lee ◽  
So-Jung Park
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Cellular Uptake ◽  
Molecular Interactions ◽  
Dna Hybridization ◽  
Hydrophobic Core ◽  
The Core ◽  
Core Composition ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles

Here, we report how the nature of the hydrophobic core affects molecular interactions of DNA block copolymer assemblies. Three different amphiphilic DNA block copolymers, DNA-b-polystyrene (DNA-b-PS), DNA-b-poly(2-vinylpyridine) (DNA-b-P2VP), and DNA-b-poly(methyl...

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