Facile fabrication of amphiphilic AIE active glucan via formation of dynamic bonds: self assembly, stimuli responsiveness and biological imaging

2016 ◽  
Vol 4 (22) ◽  
pp. 4033-4039 ◽  
Author(s):  
Qing Wan ◽  
Meiying Liu ◽  
Dazhuang Xu ◽  
Hongye Huang ◽  
Liucheng Mao ◽  
...  
Keyword(s):  
Schiff Base ◽  
Self Assembly ◽  
Biological Imaging ◽  
Stimuli Responsive ◽  
One Pot ◽  
Facile Fabrication

A one-pot strategy has been developed for the preparation of stimuli responsive AIE active glucan through formation of a dynamic Schiff base and a phenyl borate.

Facile fabrication of triphenylamine-based conjugated porous polymers and their application in organic degradation under visible light

2020 ◽  
Vol 44 (7) ◽  
pp. 2986-2995 ◽  
Author(s):  
Lidan Lan ◽  
Fei Liu ◽  
Yi Dan ◽  
Long Jiang
Keyword(s):  
Schiff Base ◽  
Visible Light ◽  
Porous Polymers ◽  
Fabrication Method ◽  
Ambient Conditions ◽  
One Pot ◽  
Organic Degradation ◽  
One Pot Synthesis ◽  
Facile Fabrication ◽  
The One

A facile fabrication method was developed for the one-pot synthesis of 1,3,5-triformylbenzene (TFB)-4,4′4′′-triaminotriphenylamine (TPA) and 1,3,5-triformylbenzene-terephthalaldehyde (TA) under ambient conditions via a Schiff-base reaction.

scholarly journals One-pot synthesis of oxidation-sensitive supramolecular gels and vesicles

2021 ◽  
Author(s):  
Aroa Duro-Castano ◽  
Laura Rodriguez-Arco ◽  
Lorena Ruiz-Perez ◽  
Cesare De Pace ◽  
Gabriele Marchello ◽  
...  
Keyword(s):  
Self Assembly ◽  
Biomedical Applications ◽  
Stimuli Responsive ◽  
Sustained Drug Release ◽  
One Pot ◽  
Physiological Conditions ◽  
One Pot Synthesis ◽  
Wide Range ◽  
Spherical Micelles ◽  
The One

Polypeptide-based nanoparticles offer unique advantages from a nanomedicine perspective such as biocompatibility, biodegradability and stimuli-responsive properties to (patho)physiological conditions. Conventionally, self-assembled polypeptide nanostructures are prepared by first synthesizing their constituent amphiphilic polypeptides followed by post-polymerization self-assembly. Herein, we describe the one-pot synthesis of oxidation-sensitive supramolecular micelles and vesicles. This was achieved by polymerization-induced self-assembly (PISA) of the N-carboxyanhydride (NCA) precursor of methionine using polyethylene oxide as stabilizing and hydrophilic block in dimethyl sulfoxide (DMSO). By adjusting the hydrophobic block length and concentration we obtained a range of morphologies from spherical to worm-like micelles, to vesicles. Remarkably, the secondary structure of polypeptides greatly influenced the final morphology of the assemblies. Surprisingly, worm-like micellar morphologies were obtained for a wide range of methionine block lengths and solid contents, with spherical micelles restricted to very short hydrophobic lengths. Worm-like micelles further assembled into oxidation-sensitive, self-standing gels in the reaction pot. Both vesicles and worm-like micelles obtained using this method demonstrated to degrade under controlled oxidant conditions which would expand their biomedical applications such as in sustained drug release or as cellular scaffolds in tissue engineering.

Organic nanoparticles composed of Fréchet-type dendrons: synthesis, characterization, self-assembly and reversible guest encapsulation

2014 ◽  
Vol 2 (34) ◽  
pp. 5576-5584 ◽  
Author(s):  
Sreedevi Krishnakumar ◽  
Karical R. Gopidas
Keyword(s):  
Gold Nanoparticle ◽  
Self Assembly ◽  
Stimuli Responsive ◽  
Morphological Transformation ◽  
One Pot ◽  
Organic Nanoparticles ◽  
On Demand ◽  
Gold Core ◽  
Self Assembled

Novel Fréchet-type dendron based organic nanodots exhibiting stimuli responsive reversible morphological transformation have been synthesized by a one-pot reaction which involves etching off gold core of a gold nanoparticle cored dendrimer. Self-assembled FDNs can be utilized for encapsulation and on-demand release of guests.

Facile fabrication of biomimetic superoleophobic composite coating via Schiff base reaction and self-assembly

2020 ◽  
Vol 142 ◽  
pp. 105568
Author(s):  
Guolin Zheng ◽  
Dan Zhang ◽  
Chuang Zheng ◽  
Yajuan Yao ◽  
Zhu Long
Keyword(s):  
Schiff Base ◽  
Composite Coating ◽  
Self Assembly ◽  
Facile Fabrication

One-pot synthesis and biological imaging application of an amphiphilic fluorescent copolymer via a combination of RAFT polymerization and Schiff base reaction

2015 ◽  
Vol 6 (11) ◽  
pp. 2133-2138 ◽  
Author(s):  
Zengfang Huang ◽  
Xiqi Zhang ◽  
Xiaoyong Zhang ◽  
Bin Yang ◽  
Yaling Zhang ◽  
...  
Keyword(s):  
Schiff Base ◽  
Raft Polymerization ◽  
Biological Imaging ◽  
One Pot ◽  
One Pot Synthesis ◽  
Imaging Application ◽  
First Time ◽  
Fluorescent Copolymer

A novel one-pot strategy for the fabrication of AIE-based FONs was developed via a combination of RAFT polymerization and Schiff base reaction for the first time.

Flow Chemistry Controls Both Self-Assembly and the Entrapped Oscillatory Cargo in Belousov-Zhabotinsky Driven Polymerization-Induced Self-Assembly

2019 ◽  
Author(s):  
Liman Hou ◽  
Marta Dueñas-Diez ◽  
Rohit Srivastava ◽  
Juan Perez-Mercader
Keyword(s):  
Self Assembly ◽  
Flow Chemistry ◽  
Batch Reactors ◽  
Equilibrium Conditions ◽  
One Pot ◽  
Bz Reaction ◽  
Polymer Vesicles ◽  
Simultaneous Control ◽  
Novel Method ◽  
Continuously Stirred Tank Reactor

<p></p><p>Belousov-Zhabotinsky (B-Z) reaction driven polymerization-induced self-assembly (PISA), or B-Z PISA, is a novel method for the autonomous one-pot synthesis of polymer vesicles from a macroCTA (macro chain transfer agent) and monomer solution (“soup”) containing the above and the BZ reaction components. In it, the polymerization is driven (and controlled) by periodically generated radicals generated in the oscillations of the B-Z reaction. These are inhibitor/activator radicals for the polymerization. Until now B-Z PISA has only been carried out in batch reactors. In this manuscript we present the results of running the system using a continuously stirred tank reactor (CSTR) configuration which offers some interesting advantages.Indeed, by controlling the CSTR parameters we achieve reproducible and simultaneous control of the PISA process and of the properties of the oscillatory cargo encapsulated in the resulting vesicles. Furthermore, the use of flow chemistry enables a more precise morphology control and chemical cargo tuning. Finally, in the context of biomimetic applications a CSTR operation mimics more closely the open non-equilibrium conditions of living systems and their surrounding environments.</p><p></p>

Sticky ends in a self-assembling ABA triblock copolymer: the role of ureas in stimuli-responsive hydrogels

2019 ◽  
Vol 4 (1) ◽  
pp. 91-102 ◽  
Author(s):  
Ryan T. Shafranek ◽  
Joel D. Leger ◽  
Song Zhang ◽  
Munira Khalil ◽  
Xiaodan Gu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Viscoelastic Properties ◽  
Triblock Copolymer ◽  
Thermal Response ◽  
Stimuli Responsive ◽  
Self Assembling ◽  
Polymeric Hydrogels ◽  
Aba Triblock Copolymer ◽  
Responsive Hydrogels

Directed self-assembly in polymeric hydrogels allows tunability of thermal response and viscoelastic properties.

scholarly journals One-Pot Microwave-Assisted Synthesis of Water-Soluble Pyran-2,4,5-triol Glucose Amine Schiff Base Derivative: XRD/HSA Interactions, Crystal Structure, Spectral, Thermal and a DFT/TD-DFT

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 117
Author(s):  
Yousef Hijji ◽  
Rajeesha Rajan ◽  
Hamdi Ben Yahia ◽  
Said Mansour ◽  
Abdelkader Zarrouk ◽  
...  
Keyword(s):  
Schiff Base ◽  
Molecular Orbital ◽  
Density Functional ◽  
Condensation Reaction ◽  
3D Structure ◽  
Water Soluble ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
Microwave Assisted ◽  
Td Dft

The(3R,4R,6R)-3-(((E)-2-hydroxybenzylidene)amino)-6-(hydroxymethyl)tetrahydro-2H-pyran-2,4,5-triol water-soluble Glucose amine Schiff base (GASB-1) product was made available by condensation of 2-hydroxybenzaldehyde with (3R,6R)-3-amino-6-(hydroxymethyl)-tetra-hydro-2H-pyran-2,4,5-triol under mono-mode microwave heating. A one-pot 5-minute microwave-assisted reaction was required to complete the condensation reaction with 90% yield and without having byproducts. The 3D structure of GASB-1 was solved from single crystal X-ray diffraction data and computed by DFT/6-311G(d,p). The Hirshfeld surface analysis (HSA), molecular electronic potential (MEP), Mulliken atomic charge (MAC), and natural population analysis (NPA) were performed. The IR and UV-Vis spectra were matched to their density functional theory (DFT) relatives and the thermal behavior was resolved in an open-room condition via thermogravimetry/Derivative thermogravimetry (TG/DTG) and differential scanning calorimetry (DSC). The highest occupied molecular orbital/lowest unoccupied molecular orbital (HOMO/LUMO), density of state (DOS), and time-dependence TD-DFT computations were correlated to the experimental electron transfer in water and acrylonitrile solvents.

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