Pb2+ coordination-driven self-assembly of amorphous amphiphilic aromatic block copolymer into semi-crystallized nanostructures with enhanced fluorescence emission

2019 ◽  
Vol 7 (4) ◽  
pp. 1057-1064 ◽  
Author(s):  
Junni Xie ◽  
Xiaohong He ◽  
Weibin Hu ◽  
Meirong Zhou ◽  
Kun Jia ◽  
...  

Luminescent crystallized soft nanostructures are fabricated via a facile Pb2+ mediated self-assembling of amorphous aromatic non-conjugated copolymer.

2019 ◽  
Vol 7 (27) ◽  
pp. 8485-8485
Author(s):  
Junni Xie ◽  
Xiaohong He ◽  
Weibin Hu ◽  
Meirong Zhou ◽  
Kun Jia ◽  
...  

Correction for ‘Pb2+ coordination-driven self-assembly of amorphous amphiphilic aromatic block copolymer into semi-crystallized nanostructures with enhanced fluorescence emission’ by Junni Xie et al., J. Mater. Chem. C, 2019, 7, 1057–1064.


Nanoscale ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 138-149
Author(s):  
Wenbo Zhang ◽  
Zihe Zhai ◽  
Shifen Li ◽  
Xue Lin ◽  
Wei Bai ◽  
...  

In situ decomposition-induced assembly in living cells results in micro–nano structures evidenced with enhanced fluorescence emission and microscopy observation.


2014 ◽  
Vol 33 (1) ◽  
pp. 137-140 ◽  
Author(s):  
Jinxin Han ◽  
Jiefang Song ◽  
Zhenfang Hao ◽  
Haitao Yu ◽  
Jianrong Han

2014 ◽  
Vol 5 (15) ◽  
pp. 4553-4560 ◽  
Author(s):  
Xinxin Li ◽  
Yanhua Yang ◽  
Guojun Li ◽  
Shaoliang Lin

The morphological evolution of triphilic copolymer P(MMA-co-MAA)-b-PFEMA aggregates self-assembling in DMF/H2O solutions with an increase in water content.


Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 869
Author(s):  
Massimo Lazzari ◽  
Mercedes Torneiro

In this systematic review, a total of 45,143 publications on block copolymers, issued between 1952 and 2019, are analyzed in terms of number, source, language, institution, country, keywords, and block copolymer type, to find out their evolution and predict research trends. The number of publications devoted to block copolymers has been growing for over six decades, maintaining a consistent level throughout the last few years. In their majority, documents came out of the United States, although more recently, Chinese institutions are those displaying the largest production. Keywords analysis indicated that one-third of the publications concerned synthesis, around 20% explored self-assembly and morphological aspects, and another 20% referred to block copolymer applications in solution. In particular, 2019 confirmed the expansion of studies related to drug delivery, and in minor extent, to a deeper view of self-assembling. Styrene–butadiene–styrene block copolymer was the most popular in studies covering both basic and industrially oriented aspects. Other highly investigated copolymers are PEO-b–PPO-b–PEO (Pluronic©) and amphiphilic block copolymers based on polycaprolactone or poly(lactic acid), which owed their success to their potential as delivery vehicles. Future trending topics will concern nanomedicine challenges and technology-related applications, with a special attention toward the orientation and ordering of mesophase-separated morphologies.


2019 ◽  
Vol 55 (68) ◽  
pp. 10132-10134 ◽  
Author(s):  
Yang Wang ◽  
Yan Cai ◽  
Leyu Cao ◽  
Moupan Cen ◽  
Yanmei Chen ◽  
...  

A new amphiphilic organoplatinum(ii) metallaclip with enhanced fluorescence emission in water and multi-dimensional well-defined micro-structures in CH3OH–H2O mixture was designed and fabricated successfully.


2012 ◽  
Vol 9 (1) ◽  
pp. 43 ◽  
Author(s):  
Hueyling Tan

Molecular self-assembly is ubiquitous in nature and has emerged as a new approach to produce new materials in chemistry, engineering, nanotechnology, polymer science and materials. Molecular self-assembly has been attracting increasing interest from the scientific community in recent years due to its importance in understanding biology and a variety of diseases at the molecular level. In the last few years, considerable advances have been made in the use ofpeptides as building blocks to produce biological materials for wide range of applications, including fabricating novel supra-molecular structures and scaffolding for tissue repair. The study ofbiological self-assembly systems represents a significant advancement in molecular engineering and is a rapidly growing scientific and engineering field that crosses the boundaries ofexisting disciplines. Many self-assembling systems are rangefrom bi- andtri-block copolymers to DNA structures as well as simple and complex proteins andpeptides. The ultimate goal is to harness molecular self-assembly such that design andcontrol ofbottom-up processes is achieved thereby enabling exploitation of structures developed at the meso- and macro-scopic scale for the purposes oflife and non-life science applications. Such aspirations can be achievedthrough understanding thefundamental principles behind the selforganisation and self-synthesis processes exhibited by biological systems.


2017 ◽  
Author(s):  
Pedro M. R. Paulo ◽  
David Botequim ◽  
Agnieszka Jóskowiak ◽  
Sofia Martins ◽  
Duarte M. F. Prazeres ◽  
...  

<div> <div> <div> <p>We have employed DNA-directed assembly to prepare dimers of gold nanoparticles and used their longitudinally coupled plasmon mode to enhance the fluorescence emission of an organic red-emitting dye, Atto-655. The plasmon- enhanced fluorescence of this dye using dimers of 80 nm particles was measured at single molecule detection level. The top enhancement factors were above 1000-fold in 71% of the dimers within a total of 32 dimers measured, and, in some cases, they reached almost 4000-fold, in good agreement with model simulations. Additionally, fluorescence lifetime correlation analysis enabled the separation of enhanced from non-enhanced emission simultaneously collected in our confocal detection volume. This approach allowed us to recover a short relaxation component exclusive to enhanced emission that is attributed to the interaction of the dye with DNA in the interparticle gaps. </p> </div> </div> </div>


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