"Frozen" Micelles: Polymer Nanoparticles of Controlled Size by Self-Assembly

2008 ◽  
pp. 341-356 ◽  
Author(s):  
R. Nagarajan
Keyword(s):  
Self Assembly ◽  
Polymer Nanoparticles

scholarly journals PhotoATRP Induced Self-Assembly (PhotoATR-PISA) Enables Simplified Synthesis of Responsive Polymer Nanoparticles in One-Pot

2020 ◽  
Author(s):  
Ali Shahrokhinia ◽  
Randall Scanga ◽  
Priyanka Biswas ◽  
James Reuther
Keyword(s):  
Self Assembly ◽  
Glycidyl Methacrylate ◽  
Uv Light ◽  
Copper Catalyst ◽  
Crosslinking Agent ◽  
Polymer Nanoparticles ◽  
One Pot ◽  
Responsive Polymer ◽  
Catalyst Systems ◽  
First Time

<p><b>ABSTRACT:</b> Photo-controlled atom transfer radical polymerization (PhotoATRP) was implemented, for the first time, to accomplish polymerization induced self-assembly (PISA) mediated by UV light (λ = 365 nm) using ppm levels (ca. < 20 ppm) of copper catalyst at ambient temperature. Using Cu<sup>II</sup>Br<sub>2</sub>/tris(pyridin-2-ylmethyl)amine (TPMA) catalyst systems, PISA was per-formed all in one-pot starting from synthesis of solvophilic poly(oligo(ethylene oxide) methyl ether methacrylate) (POEGMA) blocks to core-crosslinked nanoparticles (NPs) utilizing poly(glycidyl methacrylate) (PGMA) and N,N-cystamine bismethacrylamide (CBMA) as the solvophobic copolymer and crosslinking agent, respectively. Sequential chain-extensions were performed for PGMA demonstrating capabilities for accessing multi-block copolymers with temporal control via switching the UV light on and off. Further, core-crosslinking of PISA nanoparticles was performed via the slow incorporation of the CBMA enabling one-pot crosslinking during the PISA process. Finally, the disulfide installed in the CBMA core-crosslinks allowed for the stimuli-triggered dissociation of nanoparticles using DL-dithiothreitol at acidic pH.</p>

scholarly journals Anisotropic polymer nanoparticles with controlled dimensions from the morphological transformation of isotropic seeds

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Zan Hua ◽  
Joseph R. Jones ◽  
Marjolaine Thomas ◽  
Maria C. Arno ◽  
Anton Souslov ◽  
...  
Keyword(s):  
Physical Model ◽  
Self Assembly ◽  
Transformation Process ◽  
Polymer Nanoparticles ◽  
Advanced Materials ◽  
General Mechanism ◽  
Morphological Transformation ◽  
Functional Nanostructures ◽  
Anisotropic Nanoparticles ◽  
Multiple Length Scales

AbstractUnderstanding and controlling self-assembly processes at multiple length scales is vital if we are to design and create advanced materials. In particular, our ability to organise matter on the nanoscale has advanced considerably, but still lags far behind our skill in manipulating individual molecules. New tools allowing controlled nanoscale assembly are sorely needed, as well as the physical understanding of how they work. Here, we report such a method for the production of highly anisotropic nanoparticles with controlled dimensions based on a morphological transformation process (MORPH, for short) driven by the formation of supramolecular bonds. We present a minimal physical model for MORPH that suggests a general mechanism which is potentially applicable to a large number of polymer/nanoparticle systems. We envision MORPH becoming a valuable tool for controlling nanoscale self-assembly, and for the production of functional nanostructures for diverse applications.

Synthesis of polymer nanoparticles via electrohydrodynamic emulsification-mediated self-assembly

2021 ◽  
Vol 586 ◽  
pp. 445-456
Author(s):  
Kil Ho Lee ◽  
Megan Ireland ◽  
Brandon L. Miller ◽  
Barbara E. Wyslouzil ◽  
Jessica O. Winter
Keyword(s):  
Self Assembly ◽  
Polymer Nanoparticles

scholarly journals Enzyme-Responsive Polymer Nanoparticles via Ring-Opening Metathesis Polymerization-Induced Self-Assembly

2019 ◽  
Vol 40 (2) ◽  
pp. 1970004 ◽  
Author(s):  
Daniel B. Wright ◽  
Matthew P. Thompson ◽  
Mollie A. Touve ◽  
Andrea S. Carlini ◽  
Nathan C. Gianneschi
Keyword(s):  
Self Assembly ◽  
Ring Opening ◽  
Polymer Nanoparticles ◽  
Ring Opening Metathesis Polymerization ◽  
Metathesis Polymerization ◽  
Responsive Polymer

scholarly journals Heparin-Mimicking Sulfonated Polymer Nanoparticles via RAFT Polymerization-Induced Self-Assembly

2018 ◽  
Vol 40 (2) ◽  
pp. 1800314 ◽  
Author(s):  
Pratik Gurnani ◽  
Caroline P. Bray ◽  
Robert A. E. Richardson ◽  
Raoul Peltier ◽  
Sébastien Perrier
Keyword(s):  
Self Assembly ◽  
Raft Polymerization ◽  
Polymer Nanoparticles

pH Sensitive Polymer Nanoparticles: Effect of Hydrophobicity on Self-Assembly

Langmuir ◽  
2010 ◽  
Vol 26 (18) ◽  
pp. 14450-14457 ◽  
Author(s):  
Sergey K. Filippov ◽  
Larisa Starovoytova ◽  
Čestmír Koňák ◽  
Martin Hrubý ◽  
Hana Macková ◽  
...  
Keyword(s):  
Self Assembly ◽  
Ph Sensitive ◽  
Polymer Nanoparticles ◽  
Ph Sensitive Polymer

Symbiotic Self-Assembly Strategy toward Lipid-Encased Cross-Linked Polymer Nanoparticles for Efficient Gene Silencing

2019 ◽  
Vol 11 (28) ◽  
pp. 24971-24983 ◽  
Author(s):  
Kingshuk Dutta ◽  
Davide Bochicchio ◽  
Alexander E. Ribbe ◽  
Dominique Alfandari ◽  
Jesse Mager ◽  
...  
Keyword(s):  
Gene Silencing ◽  
Self Assembly ◽  
Polymer Nanoparticles ◽  
Assembly Strategy ◽  
Efficient Gene

Artificial Light-Harvesting Material Based on Self-Assembly of Coordination Polymer Nanoparticles

2014 ◽  
Vol 24 (28) ◽  
pp. 4549-4555 ◽  
Author(s):  
Fang Pu ◽  
Li Wu ◽  
Enguo Ju ◽  
Xiang Ran ◽  
Jinsong Ren ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Self Assembly ◽  
Light Harvesting ◽  
Polymer Nanoparticles ◽  
Artificial Light
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