Superior proapoptotic activity of curcumin-loaded mixed block copolymer micelles with mitochondrial targeting properties

2018 ◽  
Vol 6 (12) ◽  
pp. 3309-3317 ◽  
Author(s):  
Denitsa Momekova ◽  
Iva Ugrinova ◽  
Marta Slavkova ◽  
Georgi Momekov ◽  
Georgy Grancharov ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Mixed Block ◽  
Mitochondrial Targeting ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles

Multifunctional micelles based on two co-assembled block copolymers are proven to effectively accumulate and deliver curcumin in mitochondria, thus, inducing a much higher proapoptotic activity than single copolymer micelles.

scholarly journals Characterizing block-copolymer micelles used in nanomedicines via solution static scattering techniques

2021 ◽  
Author(s):  
Isamu Akiba ◽  
Kazuo Sakurai
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Static Solution ◽  
Theoretical Background ◽  
Hydrophobic Drugs ◽  
Safety And Efficacy ◽  
Critical Quality Attributes ◽  
Regulatory Authorities ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles

AbstractBlock copolymers are well recognized as excellent nanotools for delivering hydrophobic drugs. The formulation of such delivery nanoparticles requires robust characterization and clarification of the critical quality attributes correlating with the safety and efficacy of the drug before applying to regulatory authorities for approval. Static solution scattering from block copolymers is one such technique. This paper first outlines the theoretical background and current models for analyzing this scattering and then presents an overview of our recent studies on block copolymers.

Silica/organosilica cross-linked block copolymer micelles: a versatile theranostic platform

2017 ◽  
Vol 46 (3) ◽  
pp. 569-585 ◽  
Author(s):  
Dechao Niu ◽  
Yongsheng Li ◽  
Jianlin Shi
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Hybrid Materials ◽  
Biomedical Applications ◽  
Recent Progress ◽  
Amphiphilic Block Copolymers ◽  
Cross Linking ◽  
Design Synthesis ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles

Silica/organosilica cross-linked block copolymer micelles are a novel class of hybrid materials that combine the advantages of amphiphilic block copolymers and silica/organosilica cross-linking agents into one unit. This Tutorial Review summarizes the recent progress in the design, synthesis and biomedical applications of various silica/organosilica cross-linked block copolymer micelles.

Aggregation-induced emission from the crowded coronal chains of block copolymer micelles

2020 ◽  
Vol 11 (29) ◽  
pp. 4706-4713 ◽  
Author(s):  
Siyu Wang ◽  
Bixin Jin ◽  
Gangfeng Chen ◽  
Yunjun Luo ◽  
Xiaoyu Li
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Self Assembly ◽  
The Self ◽  
Assembly Process ◽  
Spatial Confinement ◽  
Aggregation Induced Emission ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles

Aggregation-induced emission (AIE) was triggered via the spatial confinement in the coronal chains in block copolymers upon micellization, even with very low content of AIE groups attached, and this could be used to monitor the self-assembly process.

scholarly journals Freezing-induced ordering of block copolymer micelles

2014 ◽  
Vol 50 (83) ◽  
pp. 12572-12574 ◽  
Author(s):  
Jérémy Dhainaut ◽  
Giulia Piana ◽  
Sylvain Deville ◽  
Christian Guizard ◽  
Michaela Klotz
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Self Assembly ◽  
Assembly Process ◽  
Silica Monoliths ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles ◽  
Ice Templating

Silica monoliths presenting both hierarchical and mesostructured porosity were obtained by the combination of ice-templating and block-copolymers following a freezing-induced self-assembly process.

Intensely phosphorescent block copolymer micelles containing gold(i) complexes

Soft Matter ◽  
2018 ◽  
Vol 14 (18) ◽  
pp. 3521-3527 ◽  
Author(s):  
Pingxia Guo ◽  
Qun He ◽  
Chen Wang ◽  
Zaili Hou ◽  
Bingran Yu ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Luminescence Enhancement ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles ◽  
Cationic Gold

Micellization of anionic block copolymers with cationic gold(i) complexes induces remarkable phosphorescence enhancement in solution. The extent of the luminescence enhancement increases with increasing molecular weight of the anionic block.

Shaping block copolymer micelles by supramolecular polymerization: making ‘tubisomes’

2019 ◽  
Vol 10 (20) ◽  
pp. 2616-2625 ◽  
Author(s):  
Johannes C. Brendel ◽  
Sylvain Catrouillet ◽  
Joaquin Sanchis ◽  
Katrina A. Jolliffe ◽  
Sébastien Perrier
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Cyclic Peptide ◽  
Peptide Conjugates ◽  
Cylindrical Micelles ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles ◽  
Supramolecular Polymerization

In contrast to the respective block copolymers, amphiphilic cyclic peptide conjugates self-assemble into cylindrical micelles independent of the polymer compositions.

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...

β-lactam Functionalized Poly(isoprene-b-ethylene oxide) Amphiphilic Block Copolymer Micelles as a New Nanocarrier System for Curcumin

2010 ◽  
Vol 6 (3) ◽  
pp. 277-284 ◽  
Author(s):  
Konstantinos Gardikis ◽  
Konstantinos Dimas ◽  
Aristidis Georgopoulos ◽  
Eleni Kaditi ◽  
Stergios Pispas ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Ethylene Oxide ◽  
Amphiphilic Block Copolymer ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles

Donnan Equilibria in Polymeric Micellar Systems with Weak Polyelectrolyte Shells: The Lowering of the pH Value

1997 ◽  
Vol 62 (11) ◽  
pp. 1730-1736 ◽  
Author(s):  
Petr Munk ◽  
Zdeněk Tuzar ◽  
Karel Procházka
Keyword(s):  
Ionic Strength ◽  
Block Copolymer ◽  
Ph Value ◽  
Electrolyte Solutions ◽  
Hydrogen Ions ◽  
Micellar Systems ◽  
Weak Electrolytes ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles ◽  
Polyelectrolyte Solutions

When two electrolyte solutions are separated and only some of the ions can cross the boundary, the concentrations of these ions are different on both sides of the boundary. This is the well-known Donnan effect. When weak electrolytes are involved, the imbalance includes also hydrogen ions: there is a difference of pH across the boundary and the dissociation of nondiffusible weak electrolytes is suppressed. The effect is very pronounced when the concentration of the weak electrolyte is high and ionic strength is low. The significance of this phenomenon is discussed for polyelectrolyte solutions, and particularly for block copolymer micelles with weak polyelectrolyte shells. The effect is quite dramatic in the latter case.

A Monte Carlo Study of Flexible Polymer Chain Conformations in Restricted Volumes. I. A Model for Insoluble Blocks Conformations in Swollen Cores of Multimolecular Spherical Block Copolymer Micelles

1993 ◽  
Vol 58 (10) ◽  
pp. 2290-2304 ◽  
Author(s):  
Zuzana Limpouchová ◽  
Karel Procházka
Keyword(s):  
Monte Carlo ◽  
Block Copolymer ◽  
Monte Carlo Study ◽  
Volume Effect ◽  
Micellar Systems ◽  
Flexible Polymer ◽  
Block Copolymer Micelles ◽  
Copolymer Micelles ◽  
Chain Conformations ◽  
Chain Lengths

Monte Carlo simulations of chain conformations in a restricted spherical volume at relatively high densities of segments were performed for various numbers of chains, N, and chain lengths (number of segments), L, on a tetrahedral lattice. All chains are randomly end-tethered to the surface of the sphere. A relatively uniform surface density of the tethered ends is guaranteed in our simulations. A simultaneous self-avoiding walk of all chains creates starting conformations for a subsequent equilibration. A modified algorithm similar to that of Siepmann and Frenkel is used for the equilibration of the chain conformations. In this paper, only a geometrical excluded volume effect of segments is considered. Various structural and conformational characteristics, e.g. segment densities gS(r), free end densities gF(r) as functions of the position in the sphere (a distance from the center), distributions of the tethered-to-free end distances, ρTF(rTF), etc. are calculated and their physical meaning is discussed. The model is suitable for studies of chain conformations is swollen cores of multimolecular block copolymer micelles and for interpretation of non-radiative excitation energy migration in polymeric micellar systems.

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