Self-Assembly of Propeller-Shaped Amphiphilic Molecules: Control over the Supramolecular Morphology and Photoproperties of Their Aggregates

Soft Matter ◽  
2021 ◽  
Author(s):  
Nan Ye ◽  
Yi-rong Pei ◽  
Qingqing Han ◽  
Myongsoo Lee ◽  
Long Yi Jin
Keyword(s):  
Self Assembly ◽  
Morphological Control ◽  
Aggregation Induced Emission ◽  
Amphiphilic Molecules ◽  
Fluorescent Materials

The aggregation-induced emission (AIE) effect is an important feature for luminescence studies, which can offer a broader range of applications for fluorescent materials. Herein, we report the morphological control and...

Facile morphological control of fluorescent nano/microstructures via self-assembly and phase separation of trigonal azobenzenes showing aggregation-induced emission enhancement in polymer matrices

2015 ◽  
Vol 3 (16) ◽  
pp. 4093-4098 ◽  
Author(s):  
Mina Han ◽  
Yukikazu Takeoka ◽  
Takahiro Seki
Keyword(s):  
Phase Separation ◽  
Self Assembly ◽  
Polymer Matrices ◽  
Morphological Control ◽  
Aggregation Induced Emission ◽  
Emission Enhancement

We report a facile strategy for constructing diverse nano/microstructured morphologies via self-assembly and phase separation of trigonal azobenzene chromophores showing AIEE in polymer matrices.

scholarly journals Regulation of bi-color fluorescence changes of AIE supramolecular self-assembly gels by the interaction with Al3+ and energy transfer

2021 ◽  
Author(s):  
Xinxian Ma ◽  
Jinlong Yue ◽  
Bo Qiao ◽  
LIli Zhou ◽  
Yang Gao ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Self Assembly ◽  
Fluorescence Emission ◽  
Fluorescent Materials

Supramolecular fluorescent materials have attracted considerable attention in recent years since they endow specific and unique properties to materials. Nevertheless, the utilization of photo-responsive characteristics to modulate their fluorescence emission...

scholarly journals Luminescent Supramolecular Nano- or Microstructures Formed in Aqueous Media by Amphiphile-Noble Metal Complexes

2020 ◽  
Vol 2020 ◽  
pp. 1-24 ◽  
Author(s):  
Carmen Cretu ◽  
Loredana Maiuolo ◽  
Domenico Lombardo ◽  
Elisabeta I. Szerb ◽  
Pietro Calandra
Keyword(s):  
Noble Metal ◽  
Smart Materials ◽  
Self Assembly ◽  
Noble Metals ◽  
Photophysical Properties ◽  
Aqueous Media ◽  
Molecular Architecture ◽  
Stimuli Responsive ◽  
Panoramic View ◽  
Amphiphilic Molecules

The involvement of metal ions within the self-assembly spontaneously occurring in surfactant-based systems gives additional and interesting features. The electronic states of the metal, together with the bonds that can be established with the organic amphiphilic counterpart, are the factors triggering new photophysical properties. Moreover, the availability of stimuli-responsive supramolecular amphiphile assemblies, able to disassemble in a back-process, provides reversible switching particularly useful in novel approaches and applications giving rise to truly smart materials. In particular, small amphiphiles with an inner distribution, within their molecular architecture, of various polar and apolar functional groups, can give a wide variety of interactions and therefore enriched self-assemblies. If it is joined with the opportune presence and localization of noble metals, whose chemical and photophysical properties are undiscussed, then very interesting materials can be obtained. In this minireview, the basic concepts on self-assembly of small amphiphilic molecules with noble metals are shown with particular reference to the photophysical properties aiming at furnishing to the reader a panoramic view of these exciting problematics. In this respect, the following will be shown: (i) the principles of self-assembly of amphiphiles that involve noble metals, (ii) examples of amphiphiles and amphiphile-noble metal systems as representatives of systems with enhanced photophysical properties, and (iii) final comments and perspectives with some examples of modern applications.

Size-tunable fluorescent dendrimersomes via aggregation-induced emission

2022 ◽  
Author(s):  
Marilyne Bélanger-Bouliga ◽  
Brandon Andrade-Gagnon ◽  
Diep Thi Hong Nguyen ◽  
Nazemi Ali
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Third Generation ◽  
Thermodynamic Control ◽  
Aggregation Induced Emission ◽  
Generation Number ◽  
Dendrimer Generation

Tetraphenylethylene-functionalized amphiphilic Janus dendrimers of up to third generation are synthesized. Their self-assembly has been studied under kinetic and thermodynamic control. By varying the dendrimer generation number and the self-assembly...

Novel chiral aggregation induced emission molecules: self-assembly, circularly polarized luminescence and copper(ii) ion detection

2018 ◽  
Vol 2 (10) ◽  
pp. 1884-1892 ◽  
Author(s):  
Guangxi Huang ◽  
Rongsen Wen ◽  
Zhiming Wang ◽  
Bing Shi Li ◽  
Ben Zhong Tang
Keyword(s):  
Self Assembly ◽  
Fluorescent Chemosensor ◽  
Chiral Molecules ◽  
Ion Detection ◽  
Circularly Polarized ◽  
Aggregation Induced Emission ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence

Two novel chiral molecules 1 and 2 were designed and synthesized. 1 displayed evident CPL activity, whereas 2 served as a highly selective and sensitive “turn-off” fluorescent chemosensor for Cu2+.

Visualizing the Initial Step of Self-Assembly and the Phase Transition by Stereogenic Amphiphiles with Aggregation-Induced Emission

ACS Nano ◽  
2018 ◽  
Vol 13 (1) ◽  
pp. 839-846 ◽  
Author(s):  
Hui-Qing Peng ◽  
Bin Liu ◽  
Peifa Wei ◽  
Pengfei Zhang ◽  
Haoke Zhang ◽  
...  
Keyword(s):  
Phase Transition ◽  
Self Assembly ◽  
Initial Step ◽  
Aggregation Induced Emission

Modelling the dynamics of a minimal protocell container

2005 ◽  
Vol 4 (1) ◽  
pp. 81-91 ◽  
Author(s):  
Martin Nilsson Jacobi ◽  
Steen Rasmussen ◽  
Kolbjørn Tunstrøm
Keyword(s):  
Self Assembly ◽  
Large Scale ◽  
Lattice Gas ◽  
Three Dimensional ◽  
Initial Distribution ◽  
Energy Potential ◽  
Time Dynamics ◽  
Amphiphilic Molecules ◽  
Head Groups ◽  
Simplifying Assumptions

This paper is a discussion on how reaction kinetics and three-dimensional (3D) lattice simulations can be used to elucidate the dynamical properties of micelles as a possible minimal protocell container. We start with a general discussion on the role of molecular self-assembly in prebiotic and contemporary biological systems. A simple reaction kinetic model of a micellation process of amphiphilic molecules in water is then presented and solved analytically. Amphiphilic molecules are polymers with hydrophobic (water-fearing), e.g. hydrocarbon tail groups, and hydrophilic (water-loving) head groups, e.g. fatty acids. By making a few simplifying assumptions an analytical expression for the size distribution of the resulting micelles can be derived. The main part of the paper presents and discusses a lattice gas technique for a more detailed 3D simulation of molecular self-assembly of amphiphilic polymers in aqueous environments. Water molecules, hydrocarbon tail groups and hydrophilic head groups are explicitly represented on a three-dimensional discrete lattice. Molecules move on the lattice proportional to their continuous momentum. Collision rules preserve momentum and kinetic energy. Potential energy from molecular interactions are also included explicitly. The non-trivial thermodynamics of large-scale and long-time dynamics are studied. In this paper we specifically demonstrate how, from a random initial distribution, micelles are formed and grow until they destabilize and can divide. Eventually a steady state of growing and dividing micelles is formed. Towards the end of the paper we discuss the relevance of the presented results to the design of a minimal artificial protocell.

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