Self-Assembly Mechanism of Complex Corrugated Particles

2021 ◽  
Author(s):  
Lanqin Tang ◽  
Thi Vo ◽  
Xiaoxing Fan ◽  
Drew Vecchio ◽  
Tao Ma ◽  
...  
Keyword(s):  
Self Assembly ◽  
Assembly Mechanism

Cooperative Self-Assembly of Pyridine-2,6-Diimine-Linked Macrocycles into Mechanically Robust Nanotubes

2019 ◽  
Author(s):  
Michael J. Strauss ◽  
Darya Asheghali ◽  
Austin Evans ◽  
Rebecca Li ◽  
Anton Chavez ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Self Assembly ◽  
Gel Permeation Chromatography ◽  
Synthetic Polymers ◽  
Young’S Moduli ◽  
Structural Rigidity ◽  
Assembly Mechanism ◽  
Low Dimensionality ◽  
Harsh Conditions

<p>Nanotubes assembled from macrocyclic precursors offer a unique combination of low dimensionality, structural rigidity, and distinct interior and exterior microenvironments. Usually the weak stacking energies of macrocycles limit the length or strength of the resultant nanotubes. Imine-linked macrocycles were recently found to assemble into high-aspect ratio (>10<sup>3</sup>), lyotropic nanotubes in the presence of excess acid. Yet these harsh conditions are incompatible with many functional groups and processing methods, and lower acid loadings instead catalyze macrocycle degradation. Here we report pyridine-2,6-diimine-linked macrocycles that assemble into high-aspect ratio nanotubes in the presence of less than 1 equiv of CF<sub>3</sub>CO<sub>2</sub>H per macrocycle. Analysis by gel permeation chromatography and fluorescence spectroscopy revealed a cooperative self-assembly mechanism. Nanofibers obtained by touch-spinning the pyridinium-based nanotubes exhibit Young’s moduli of 1.48 GPa, which exceeds that of many synthetic polymers and biological filaments. These findings will enable the design of structurally diverse nanotubes from synthetically accessible macrocycles. </p>

scholarly journals Millimeter-Scale Zn(3-ptz)2 Metal–Organic Framework Single Crystals: Self-Assembly Mechanism and Growth Kinetics

ACS Omega ◽  
2021 ◽  
Author(s):  
Juan M. Garcia-Garfido ◽  
Javier Enríquez ◽  
Ignacio Chi-Durán ◽  
Iván Jara ◽  
Leonardo Vivas ◽  
...  
Keyword(s):  
Single Crystals ◽  
Growth Kinetics ◽  
Self Assembly ◽  
Metal Organic Framework ◽  
Assembly Mechanism ◽  
Metal Organic ◽  
Organic Framework

Room temperature synthesis of flower-like CaCO3 architectures

2016 ◽  
Vol 40 (1) ◽  
pp. 571-577 ◽  
Author(s):  
Lu-feng Yang ◽  
De-qing Chu ◽  
Hui-lou Sun ◽  
Ge Ge
Keyword(s):  
Self Assembly ◽  
Room Temperature ◽  
Temperature Synthesis ◽  
Room Temperature Synthesis ◽  
Assembly Mechanism

A proposed hierarchical self-assembly mechanism of the formation of flower-like vaterite superstructures.

scholarly journals Lanthanide Homobimetallic Triple-Stranded Helicates: Insight into the Self-Assembly Mechanism

2004 ◽  
Vol 2004 (1) ◽  
pp. 51-62 ◽  
Author(s):  
Mourad Elhabiri ◽  
Josef Hamacek ◽  
Jean-Claude G. Bünzli ◽  
Anne-Marie Albrecht-Gary
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Assembly Mechanism ◽  
Insight Into

scholarly journals Self-assembly mechanism based on charge density topological interaction energies

2017 ◽  
Vol 29 (3) ◽  
pp. 703-713 ◽  
Author(s):  
Błażej Dziuk ◽  
Christopher G. Gianopoulos ◽  
Krzysztof Ejsmont ◽  
Bartosz Zarychta
Keyword(s):  
Charge Density ◽  
Self Assembly ◽  
Interaction Energies ◽  
Assembly Mechanism ◽  
Topological Interaction

scholarly journals Self-Assembly Mechanism of a Peptide-Based Drug Delivery Vehicle

ACS Omega ◽  
2018 ◽  
Vol 3 (3) ◽  
pp. 3143-3155 ◽  
Author(s):  
Gopal Pandit ◽  
Karabi Roy ◽  
Umang Agarwal ◽  
Sunanda Chatterjee
Keyword(s):  
Drug Delivery ◽  
Self Assembly ◽  
Delivery Vehicle ◽  
Drug Delivery Vehicle ◽  
Assembly Mechanism

Photoluminescent organic polymer nanofilms formed in water through a self-assembly formation mechanism

2019 ◽  
Vol 7 (11) ◽  
pp. 3286-3293 ◽  
Author(s):  
Baoxi Feng ◽  
Zhen Xu ◽  
Jiayu Wang ◽  
Fei Feng ◽  
Lin Wang ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Real Time ◽  
Formation Mechanism ◽  
Self Assembly ◽  
Organic Polymer ◽  
Assembly Mechanism ◽  
Real Time Visualization ◽  
Dynamics Simulations

A self-assembly mechanism is demonstrated for the formation of polymer nanofilms based on real-time visualization and molecular dynamics simulations.

scholarly journals A Mechanistic Perspective on PEX1 and PEX6, Two AAA+ Proteins of the Peroxisomal Protein Import Machinery

2019 ◽  
Vol 20 (21) ◽  
pp. 5246 ◽  
Author(s):  
Ana G. Pedrosa ◽  
Tânia Francisco ◽  
Maria J. Ferreira ◽  
Tony A. Rodrigues ◽  
Aurora Barros-Barbosa ◽  
...  
Keyword(s):  
Self Assembly ◽  
Driving Force ◽  
Matrix Protein ◽  
Protein Import ◽  
Atp Hydrolysis ◽  
Transport Proteins ◽  
Gtp Hydrolysis ◽  
Assembly Mechanism ◽  
Dependent Protein ◽  
Organelle Membrane

In contrast to many protein translocases that use ATP or GTP hydrolysis as the driving force to transport proteins across biological membranes, the peroxisomal matrix protein import machinery relies on a regulated self-assembly mechanism for this purpose and uses ATP hydrolysis only to reset its components. The ATP-dependent protein complex in charge of resetting this machinery—the Receptor Export Module (REM)—comprises two members of the “ATPases Associated with diverse cellular Activities” (AAA+) family, PEX1 and PEX6, and a membrane protein that anchors the ATPases to the organelle membrane. In recent years, a large amount of data on the structure/function of the REM complex has become available. Here, we discuss the main findings and their mechanistic implications.

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