Facile fabrication of narrowly-distributed polymeric micelles via host–guest inclusion complexation of hyperbranched polymers and cyclodextrin and its two-dimensional self-assembly

2010 ◽  
Vol 12 (38) ◽  
pp. 11948 ◽  
Author(s):  
Xiaoyi Sun ◽  
Wei Huang ◽  
Yongfeng Zhou ◽  
Deyue Yan
Keyword(s):  
Self Assembly ◽  
Polymeric Micelles ◽  
Inclusion Complexation ◽  
Hyperbranched Polymers ◽  
Two Dimensional ◽  
Facile Fabrication

Facile fabrication of two-dimensional inorganic nanostructures and their conjugation to nanocrystals

2013 ◽  
Vol 1 (29) ◽  
pp. 4497 ◽  
Author(s):  
Seungho Cho ◽  
Ji-Wook Jang ◽  
Juwon Park ◽  
Sungwook Jung ◽  
Sanghwa Jeong ◽  
...  
Keyword(s):  
Two Dimensional ◽  
Facile Fabrication ◽  
Inorganic Nanostructures

scholarly journals Synthesis and self-assembly of curcumin-modified amphiphilic polymeric micelles with antibacterial activity

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Caio H. N. Barros ◽  
Dishon W. Hiebner ◽  
Stephanie Fulaz ◽  
Stefania Vitale ◽  
Laura Quinn ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Self Assembly ◽  
Glycolic Acid ◽  
Extracellular Polymeric Substances ◽  
Polymeric Micelles ◽  
Polymeric Nanoparticles ◽  
Enhanced Resistance ◽  
Antimicrobial Nanoparticles ◽  
Good Penetration ◽  
Antibiofilm Agents

Abstract Background The ubiquitous nature of bacterial biofilms combined with the enhanced resistance towards antimicrobials has led to the development of an increasing number of strategies for biofilm eradication. Such strategies must take into account the existence of extracellular polymeric substances, which obstruct the diffusion of antibiofilm agents and assists in the maintenance of a well-defended microbial community. Within this context, nanoparticles have been studied for their drug delivery efficacy and easily customised surface. Nevertheless, there usually is a requirement for nanocarriers to be used in association with an antimicrobial agent; the intrinsically antimicrobial nanoparticles are most often made of metals or metal oxides, which is not ideal from ecological and biomedical perspectives. Based on this, the use of polymeric micelles as nanocarriers is appealing as they can be easily prepared using biodegradable organic materials. Results In the present work, micelles comprised of poly(lactic-co-glycolic acid) and dextran are prepared and then functionalised with curcumin. The effect of the functionalisation in the micelle’s physical properties was elucidated, and the antibacterial and antibiofilm activities were assessed for the prepared polymeric nanoparticles against Pseudomonas spp. cells and biofilms. It was found that the nanoparticles have good penetration into the biofilms, which resulted in enhanced antibacterial activity of the conjugated micelles when compared to free curcumin. Furthermore, the curcumin-functionalised micelles were efficient at disrupting mature biofilms and demonstrated antibacterial activity towards biofilm-embedded cells. Conclusion Curcumin-functionalised poly(lactic-co-glycolic acid)-dextran micelles are novel nanostructures with an intrinsic antibacterial activity tested against two Pseudomonas spp. strains that have the potential to be further exploited to deliver a secondary bioactive molecule within its core. Graphic Abstract

scholarly journals Template-Free Self-Assembly of Two-Dimensional Polymers into Nano/Microstructured Materials

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3310
Author(s):  
Shengda Liu ◽  
Jiayun Xu ◽  
Xiumei Li ◽  
Tengfei Yan ◽  
Shuangjiang Yu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Recent Progress ◽  
Two Dimensional ◽  
Subsequent Removal ◽  
The Past ◽  
2D Polymers ◽  
Template Free ◽  
Self Assembled ◽  
The Relationship ◽  
Polymer Tubes

In the past few decades, enormous efforts have been made to synthesize covalent polymer nano/microstructured materials with specific morphologies, due to the relationship between their structures and functions. Up to now, the formation of most of these structures often requires either templates or preorganization in order to construct a specific structure before, and then the subsequent removal of previous templates to form a desired structure, on account of the lack of “self-error-correcting” properties of reversible interactions in polymers. The above processes are time-consuming and tedious. A template-free, self-assembled strategy as a “bottom-up” route to fabricate well-defined nano/microstructures remains a challenge. Herein, we introduce the recent progress in template-free, self-assembled nano/microstructures formed by covalent two-dimensional (2D) polymers, such as polymer capsules, polymer films, polymer tubes and polymer rings.

General Interfacial Self‐Assembly Engineering for Patterning Two‐Dimensional Polymers with Cylindrical Mesopores on Graphene

2019 ◽  
Vol 58 (30) ◽  
pp. 10173-10178 ◽  
Author(s):  
Hao Tian ◽  
Jieqiong Qin ◽  
Dan Hou ◽  
Qian Li ◽  
Chen Li ◽  
...  
Keyword(s):  
Self Assembly ◽  
Two Dimensional

Percolation in two-dimensional nanoparticle films from colloidal self-assembly

2007 ◽  
Vol 204 (6) ◽  
pp. 1856-1862 ◽  
Author(s):  
Ching-Ling Hsu ◽  
Szu-Ming Chu ◽  
Kiwi Wood ◽  
Yi-Rong Yang
Keyword(s):  
Self Assembly ◽  
Two Dimensional ◽  
Nanoparticle Films

Self-assembly of carbon nanotubes into two-dimensional geometries using DNA origami templates

2009 ◽  
Vol 5 (1) ◽  
pp. 61-66 ◽  
Author(s):  
Hareem T. Maune ◽  
Si-ping Han ◽  
Robert D. Barish ◽  
Marc Bockrath ◽  
William A. Goddard III ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Self Assembly ◽  
Dna Origami ◽  
Two Dimensional

Square-grid coordination networks of (5,10,15,20-tetra-4-pyridylporphyrinato)zinc(II) in its clathrate with two guest molecules of 1,2-dichlorobenzene: supramolecular isomerism of the porphyrin self-assembly

2009 ◽  
Vol 65 (3) ◽  
pp. m139-m142 ◽  
Author(s):  
Rajesh Koner ◽  
Israel Goldberg
Keyword(s):  
Self Assembly ◽  
Metal Ion ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Coordination Networks ◽  
Guest Molecules ◽  
Square Grid ◽  
Supramolecular Isomerism ◽  
Self Assembled ◽  
Solvent Molecules

The title compound, (5,10,15,20-tetra-4-pyridylporphyrinato)zinc(II) 1,2-dichlorobenzene disolvate, [Zn(C40H24N8)]·2C6H4Cl2, contains a clathrate-type structure. It is composed of two-dimensional square-grid coordination networks of the self-assembled porphyrin moiety, which are stacked one on top of the other in a parallel manner. The interporphyrin cavities of the overlapping networks combine into channel voids accommodated by the dichlorobenzene solvent. Molecules of the porphyrin complex are located on crystallographic inversion centres. The observed two-dimensional assembly mode of the porphyrin units represents a supramolecular isomer of the unique three-dimensional coordination frameworks of the same porphyrin building block observed earlier. The significance of this study lies in the discovery of an additional supramolecular isomer of the rarely observed structures of metalloporphyrins self-assembled directly into extended coordination polymers without the use of external ligand or metal ion auxiliaries.

Two-Dimensional Self-Assembly of Chiral Malic Acid on Cu(110)

2010 ◽  
Vol 115 (4) ◽  
pp. 1240-1247 ◽  
Author(s):  
Christian Roth ◽  
Daniele Passerone ◽  
Leo Merz ◽  
Manfred Parschau ◽  
Karl-Heinz Ernst
Keyword(s):  
Malic Acid ◽  
Self Assembly ◽  
Two Dimensional
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