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Towards Biomimicking Wood: Fabricated Free-standing Films of Nanocellulose, Lignin, and a Synthetic Polycation
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Nanotechnology Applied to Cellulosic Materials.

Ana Fernandes1, Luísa Cruz-Lopes2,3, Bruno Esteves3,4

  • 1Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal.

Materials (Basel, Switzerland)
|April 28, 2023
PubMed
Summary
This summary is machine-generated.

Nanocellulosic materials, including cellulose nanocrystals (CNC), cellulose nanofibers (CNF), and bacterial cellulose (BC), are versatile for advanced applications. Their production involves various mechanical and chemical treatments, with significant potential in triboelectric nanogenerators (TENGs).

Keywords:
bacterial cellulosecellulose nanocrystalscellulose nanofibersnanogenerators

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Biomaterials

Background:

  • Nanocellulosic materials exhibit excellent performance, biodegradability, availability, and biocompatibility.
  • These materials exist in three main forms: cellulose nanocrystals (CNC), cellulose nanofibers (CNF), and bacterial cellulose (BC).

Purpose of the Study:

  • To review the methods for obtaining nanocellulosic materials.
  • To explore the applications of nanocelluloses in advanced materials, particularly triboelectric nanogenerators (TENGs).

Main Methods:

  • Discusses mechanical/physical treatments like refining, homogenization, microfluidization, and electrospinning.
  • Details chemical pretreatments including organosolvation, TEMPO-mediated oxidation, persulfate treatments, ionic liquid extraction, and acid hydrolysis.
  • Covers enzymatic treatments for nanocellulose production.

Main Results:

  • Nanocelluloses can be produced through diverse mechanical, chemical, and enzymatic pathways.
  • Significant focus on the application of CNC, CNF, and BC in triboelectric nanogenerators (TENGs).

Conclusions:

  • Nanocelluloses are promising materials for the development of advanced applications, especially self-powered sensors and wearable electronics via TENGs.
  • The unique properties of nanocelluloses position them as key components in the future of energy harvesting and electronic devices.