Self-assembly of amphiphilic block pendant polymers as microphase separation materials and folded flower micelles

2019 ◽  
Vol 10 (36) ◽  
pp. 4954-4961 ◽  
Author(s):  
Mayuko Matsumoto ◽  
Mikihito Takenaka ◽  
Mitsuo Sawamoto ◽  
Takaya Terashima
Keyword(s):  
Solid State ◽  
Self Assembly ◽  
Microphase Separation ◽  
Amphiphilic Polymers ◽  
New Class ◽  
Self Assembled

Herein, we created amphiphilic polymers bearing hydrophilic/hydrophobic block pendants as a new class of self-assembled materials for microphase separation in the solid state and folded flower micelles in water.

scholarly journals Synthesis, solid state self-assembly driven by antiparallel π⋯π stacking and {⋯H–C–C–F}2 dimer synthons, and in vitro acetyl cholinesterase inhibition activity of phenoxy pendant isatins

RSC Advances ◽  
2022 ◽  
Vol 12 (3) ◽  
pp. 1788-1796
Author(s):  
Saba Mehreen ◽  
Aman Ullah ◽  
Humaira Nadeem ◽  
Necmi Dege ◽  
Muhammad Moazzam Naseer
Keyword(s):  
Solid State ◽  
Self Assembly ◽  
Cholinesterase Inhibition ◽  
Inhibition Activity ◽  
State Structure ◽  
Acetyl Cholinesterase ◽  
Solid State Structure ◽  
Π Stacking ◽  
Self Assembled

The phenoxy pendant isatins were observed to be highly potent inhibitors of acetylcholinesterase. In addition, the solid-state structure of a phenoxy pendant isatin showed an intriguing 1D-supramolecular self-assembled structure.

Phase separation and self-assembly of cyclic amphiphilic block copolymers with a main-chain liquid crystalline segment

2015 ◽  
Vol 6 (22) ◽  
pp. 4167-4176 ◽  
Author(s):  
Satoshi Honda ◽  
Maito Koga ◽  
Masatoshi Tokita ◽  
Takuya Yamamoto ◽  
Yasuyuki Tezuka
Keyword(s):  
Phase Separation ◽  
Solid State ◽  
Block Copolymers ◽  
Electric Field ◽  
Self Assembly ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Amphiphilic Block Copolymers ◽  
Cylindrical Micelles ◽  
Self Assembled

The effects of the macrocyclization of amphiphiles with a liquid crystalline segment were investigated in the solid state, and electric field-responsive cylindrical micelles and vesicles were self-assembled.

Pillar[5]arene derivatives containing two dinitrophenyl rings: syntheses, conformations and the tubular self assembly in the solid state

RSC Advances ◽  
2016 ◽  
Vol 6 (14) ◽  
pp. 11488-11491 ◽  
Author(s):  
Min Xue ◽  
Xiaoyan Xu ◽  
Jianggen An ◽  
Jie Wang ◽  
Yong Yang ◽  
...  
Keyword(s):  
Solid State ◽  
Self Assembly ◽  
Self Assembled

Pillar[5]arene derivatives with two dinitrophenyl rings were synthesized in 90% and 99% yields, respectively. The di(2,4-dinitro-5-fluoro-phenyl)-modified pillar[5]arene self assembled into column in the solid state.

scholarly journals ‘Frustrated’ hydrogen bond mediated amphiphile self-assembly – a solid state study

CrystEngComm ◽  
2016 ◽  
Vol 18 (37) ◽  
pp. 7021-7028 ◽  
Author(s):  
Laura R. Blackholly ◽  
Helena J. Shepherd ◽  
Jennifer R. Hiscock
Keyword(s):  
Hydrogen Bond ◽  
Solid State ◽  
Self Assembly ◽  
Hydrogen Bond Donor ◽  
System P ◽  
State Study ◽  
Counter Cation ◽  
Self Assembled ◽  
Hydrogen Bonded

The effects of hydrogen bond donor acidity and counter cation within a ‘frustrated’ self-assembled, hydrogen bonded system.

Helical Porous Protein Mimics Self-Assembled from Amphiphilic Dendritic Dipeptides

2005 ◽  
Vol 58 (6) ◽  
pp. 472 ◽  
Author(s):  
Virgil Percec ◽  
Andrés Dulcey ◽  
Mihai Peterca ◽  
Monica Ilies ◽  
Yoshiko Miura ◽  
...  
Keyword(s):  
Self Assembly ◽  
Transmembrane Proteins ◽  
Supramolecular Assemblies ◽  
The Self ◽  
Supramolecular Polymers ◽  
Protein Mimics ◽  
New Class ◽  
Solid States ◽  
Self Assembled

This manuscript reports the synthesis and the self-assembly of (4-3,4,5-3,5)nG2-CH2-Boc-l-Tyr-l-Ala-OMe dendritic dipeptides (n = 12, 16). These dendritic dipeptides self-assemble both in solution and in solid states into helical porous supramolecular columns that mimic porous transmembrane proteins. These supramolecular assemblies provide also a new class of tubular supramolecular polymers.

Synthesis of novel benzimidazole-carbazole-N-glycosylamines and their self-assembly into nanofibers

2014 ◽  
Vol 38 (9) ◽  
pp. 4371-4379 ◽  
Author(s):  
Manivannan Kalavathi Dhinakaran ◽  
Kamalakannan Soundarajan ◽  
Thangamuthu Mohan Das
Keyword(s):  
Self Assembly ◽  
Thermally Stable ◽  
Covalent Interaction ◽  
New Class ◽  
Self Assembled

A new class of benzimidazole-carbazole-N-glycosylamines were synthesized and self-assembled through non-covalent interaction into mechanically and thermally stable organogels with nanofibrous morphology.

Synthesis and self-assembly of phthalocyanine-tethered block copolymers

2015 ◽  
Vol 3 (11) ◽  
pp. 2484-2490 ◽  
Author(s):  
Junko Aimi ◽  
Motonori Komura ◽  
Tomokazu Iyoda ◽  
Akinori Saeki ◽  
Shu Seki ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Atom Transfer Radical Polymerization ◽  
Click Chemistry ◽  
Radical Polymerization ◽  
Self Assembly ◽  
Microphase Separation ◽  
Atom Transfer ◽  
Π Interactions ◽  
Self Assembled

Novel block copolymers bearing a phthalocyanine were synthesized via atom transfer radical polymerization and “click” chemistry. Self-assembled nanoarchitectures are obtained through microphase separation of the block copolymers and phthalocyanine π–π interactions.

Nanoscale Self-Assembly Using Ion and Electron Beam Techniques: A Rapid Review

MRS Advances ◽  
2020 ◽  
Vol 5 (64) ◽  
pp. 3507-3520
Author(s):  
Chunhui Dai ◽  
Kriti Agarwal ◽  
Jeong-Hyun Cho
Keyword(s):  
Electron Beam ◽  
Self Assembly ◽  
Ion Beam ◽  
Three Dimensional ◽  
The Self ◽  
Stress Generation ◽  
Rapid Review ◽  
High Yield ◽  
3D Nanostructures ◽  
Self Assembled

AbstractNanoscale self-assembly, as a technique to transform two-dimensional (2D) planar patterns into three-dimensional (3D) nanoscale architectures, has achieved tremendous success in the past decade. However, an assembly process at nanoscale is easily affected by small unavoidable variations in sample conditions and reaction environment, resulting in a low yield. Recently, in-situ monitored self-assembly based on ion and electron irradiation has stood out as a promising candidate to overcome this limitation. The usage of ion and electron beam allows stress generation and real-time observation simultaneously, which significantly enhances the controllability of self-assembly. This enables the realization of various complex 3D nanostructures with a high yield. The additional dimension of the self-assembled 3D nanostructures opens the possibility to explore novel properties that cannot be demonstrated in 2D planar patterns. Here, we present a rapid review on the recent achievements and challenges in nanoscale self-assembly using electron and ion beam techniques, followed by a discussion of the novel optical properties achieved in the self-assembled 3D nanostructures.

Self-Assembly of a Chiral Cubic Three-Connected Net from the High Symmetry Molecules C60 and SnI4

2020 ◽  
Author(s):  
Daniel B. Straus ◽  
Robert J. Cava
Keyword(s):  
Organic Synthesis ◽  
Self Assembly ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
High Symmetry ◽  
Molecular Chirality ◽  
Chiral Materials ◽  
Self Assembled ◽  
Chiral Centers

The design of new chiral materials usually requires stereoselective organic synthesis to create molecules with chiral centers. Less commonly, achiral molecules can self-assemble into chiral materials, despite the absence of intrinsic molecular chirality. Here, we demonstrate the assembly of high-symmetry molecules into a chiral van der Waals structure by synthesizing crystals of C<sub>60</sub>(SnI<sub>4</sub>)<sub>2</sub> from icosahedral buckminsterfullerene (C<sub>60</sub>) and tetrahedral SnI4 molecules through spontaneous self-assembly. The SnI<sub>4</sub> tetrahedra template the Sn atoms into a chiral cubic three-connected net of the SrSi<sub>2</sub> type that is held together by van der Waals forces. Our results represent the remarkable emergence of a self-assembled chiral material from two of the most highly symmetric molecules, demonstrating that almost any molecular, nanocrystalline, or engineered precursor can be considered when designing chiral assemblies.

A Bottom-Up Approach to Solution-Processed, Atomically Precise Graphitic Cylinders on Surfaces

2018 ◽  
Author(s):  
Erik Leonhardt ◽  
Jeff M. Van Raden ◽  
David Miller ◽  
Lev N. Zakharov ◽  
Benjamin Aleman ◽  
...  
Keyword(s):  
Self Assembly ◽  
Carbon Nanostructures ◽  
Carbon Nanomaterials ◽  
Circle Packing ◽  
Pyrolytic Graphite ◽  
Building Blocks ◽  
Bottom Up ◽  
Casting Technique ◽  
New Class ◽  
Solution Casting Technique

Extended carbon nanostructures, such as carbon nanotubes (CNTs), exhibit remarkable properties but are difficult to synthesize uniformly. Herein, we present a new class of carbon nanomaterials constructed via the bottom-up self-assembly of cylindrical, atomically-precise small molecules. Guided by supramolecular design principles and circle packing theory, we have designed and synthesized a fluorinated nanohoop that, in the solid-state, self-assembles into nanotube-like arrays with channel diameters of precisely 1.63 nm. A mild solution-casting technique is then used to construct vertical “forests” of these arrays on a highly-ordered pyrolytic graphite (HOPG) surface through epitaxial growth. Furthermore, we show that a basic property of nanohoops, fluorescence, is readily transferred to the bulk phase, implying that the properties of these materials can be directly altered via precise functionalization of their nanohoop building blocks. The strategy presented is expected to have broader applications in the development of new graphitic nanomaterials with π-rich cavities reminiscent of CNTs.

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