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ISSN (Online): 2210-6820

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Review Article

Preparation and Chemical/Physical Characterization of Individual Nanoscaled Fibrils

Author(s): Praveetha Senthilkumar, Sharmila Chandran, Alexey Kartsev, Vladimir Shavrov, Petr Lega and Ramesh Subramani*

Volume 12, Issue 2, 2022

Published on: 26 April, 2022

Article ID: e170222201234 Pages: 10

DOI: 10.2174/2210681212666220217121830

Price: $65

Abstract

Polymer-based nanofibril finds its application in various fields including tissue engineering, environmental monitoring, food packaging, and micro/nanoelectromechanical systems. These nanofibrils are subjected to chemical treatment and constant stress, which may cause permanent deformation to the fibrils when it is used. Therefore, the synthesis of well-defined nanofibrils and characterization techniques are key elements in identifying desired chemical and physical properties for suitable applications. Many methods have been developed to prepare individual nanofibrils, including electrospinning, phase separation, template synthesis, and self-assembly. Among all, self-assembly offers simple, efficient, and lowcost strategies that produce high-ordered nanofibrils using noncovalent interactions including hydrogen bonding, electrostatic interactions, π-π interactions, and hydrophobic interactions. The first part of the review provides detailed molecular interactions and simulations that can be controlled to achieve the formation of well-defined individual nanofibrils. The second part of the review describes the various existing tools to characterize the chemical and physical properties of single nanofibrils including atomic force microscopy. In the final part of the review, recently developed novel nanotools that measure the mechanical properties of nanofibrils are described. By bridging the gap between molecular interactions and resulting nanoscale fibirls, physical and chemical properties may lead to the construction of novel nanomaterials in the area of nanoscience and nanotechnology.

Keywords: Nanofibrils, electrostatic interactions, self-assembly, mechanical measurement, atomic force microscopy, nano tweezers.

Graphical Abstract

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