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Advances in Nanocrystalline Cellulose and Their Applications
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Advances in Nanocrystalline Cellulose and Their Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Nanomaterials and Nanotechnology".

Deadline for manuscript submissions: closed (10 November 2022) | Viewed by 6457

Special Issue Editor

Dr. Alessandra Operamolla

E-Mail Website
Guest Editor
Department of Chemistry and Industrial Chemistry, University of Pisa, Via Giuseppe Moruzzi, 13, I-56124 Pisa, Italy
Interests: organometallic cross-coupling methodologies for the synthesis of organic semiconductors; small molecules and macromolecular materials; materials for self-assembling and organic–biological hybrids; synthetic strategies for the functionalization of nanocrystalline cellulose to enable new technological applications of old and new material
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nanocellulose offers intriguing opportunities of application in various fields of materials and chemical sciences. First isolated in the 1950’ as cellulose nanocrystals, our scientific community has recently discovered the great potentialities of nanocellulose forms, such as microfibrillated cellulose (MFC), nanofibrillated cellulose (NFC) and cellulose nanocrystals (CNCs), including their use in paper and nanopaper forming, coating technologies, drug delivery, nanophotonics, charge storage, bioremediation, biocatalysis and catalysis.

At first, nanocellulose, such as CNCs and NFC, has attracted much interest as an old-and-new renewable material that possesses high values of strength and toughness, making it competitive with synthetic but less sustainable materials, such as ceramics, Kevlar and carbon fibers. Furthermore, additional properties, such as high specific surface area, barrier properties and the possibility of chemical functionalization, have made the potentialities of nanocellulose much more appealing.

For this Special Issue, we aim to receive and publish the latest outstanding research on the topic of nanocellulose extraction, production and application in novel and appealing technologies, including, but not limited to, the fields of paper and pulping processes, coating technologies, application in medicine and nanomedicine, tissue engineering, catalysis and biocatalysis, water filtration and optoelectronics.

We kindly invite you to submit a manuscript(s) for this Special Issue. Full papers, communications and reviews are all welcome.

Dr. Alessandra Operamolla
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nanocrystalline cellulose
  • CNC
  • NFC
  • MFC
  • nanocellulose
  • paper
  • cellulose nanofibrils
  • cellulose microfibrils

Published Papers (2 papers)

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Research

13 pages, 2659 KiB  
Article
Nanocrystalline Cellulose from Microcrystalline Cellulose of Date Palm Fibers as a Promising Candidate for Bio-Nanocomposites: Isolation and Characterization
by Amina Hachaichi, Benalia Kouini, Lau Kia Kian, Mohammad Asim, Hassan Fouad, Mohammad Jawaid and Mohini Sain
Materials 2021, 14(18), 5313; https://doi.org/10.3390/ma14185313 - 15 Sep 2021
Cited by 23 | Viewed by 3619
Abstract
Date palm fiber (Phoenix dactylifera L.) is a natural biopolymer rich in lignocellulosic components. Its high cellulose content lends them to the extraction of tiny particles like microcrystalline cellulose (MCC) and nanocrystalline cellulose (NCC). These cellulose-derived small size particles can be used [...] Read more.
Date palm fiber (Phoenix dactylifera L.) is a natural biopolymer rich in lignocellulosic components. Its high cellulose content lends them to the extraction of tiny particles like microcrystalline cellulose (MCC) and nanocrystalline cellulose (NCC). These cellulose-derived small size particles can be used as an alternative biomaterial in wide fields of application due to their renewability and sustainability. In the present work, NCC (A) and NCC (B) were isolated from date palm MCC at 60 min and 90 min hydrolysis times, respectively. The isolated NCC product was subjected to characterization to study their properties differences. With the hydrolysis treatment, the yields of produced NCC could be attained at between 22% and 25%. The infrared-ray functional analysis also revealed the isolated NCC possessed a highly exposed cellulose compartment with minimized lignoresidues of lignin and hemicellulose. From morphology evaluation, the nanoparticles’ size was decreased gradually from NCC (A) (7.51 nm width, 139.91 nm length) to NCC (B) (4.34 nm width, 111.51 nm length) as a result of fragmentation into cellulose fibrils. The crystallinity index was found increasing from NCC (A) to NCC (B). With 90 min hydrolysis time, NCC (B) showed the highest crystallinity index of 71% due to its great cellulose rigidity. For thermal analysis, NCC (B) also exhibited stable heat resistance, in associating with its highly crystalline cellulose structure. In conclusion, the NCC isolated from date palm MCC would be a promising biomaterial for various applications such as biomedical and food packaging applications. Full article
(This article belongs to the Special Issue Advances in Nanocrystalline Cellulose and Their Applications)
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13 pages, 14308 KiB  
Article
Design and Development of Cellulosic Bionanocomposites from Forestry Waste Residues for 3D Printing Applications
by Maya Jacob John, Nokuzola Dyanti, Teboho Mokhena, Victor Agbakoba and Bruce Sithole
Materials 2021, 14(13), 3462; https://doi.org/10.3390/ma14133462 - 22 Jun 2021
Cited by 17 | Viewed by 2215
Abstract
This paper deals with the development of cellulose nanofibres (CNFs) reinforced biopolymers for use in packaging applications. Cellulose nanofibres were extracted from sawdust by a combination of chemical and mechanical treatments. The extracted cellulose nanofibres were chemically modified (fCNFs) and characterised by Fourier [...] Read more.
This paper deals with the development of cellulose nanofibres (CNFs) reinforced biopolymers for use in packaging applications. Cellulose nanofibres were extracted from sawdust by a combination of chemical and mechanical treatments. The extracted cellulose nanofibres were chemically modified (fCNFs) and characterised by Fourier Transform Infrared Spectroscopy (FTIR). Bionanocomposites were prepared from biopolymers polylactic acid/polybutylene succinate (PLA/PBS) and cellulose nanofibres by compounding in a twin-screw extruder followed by injection moulding. The developed bionanocomposites were subjected to mechanical and thermal characterisation. As part of product development, CNF-biopolymer pellets were also extruded into filaments which were then 3D printed into prototypes. This work is a successful demonstration of conversion of waste residues into value-added products, which is aligned to the principles of circular economy and sustainable development. Full article
(This article belongs to the Special Issue Advances in Nanocrystalline Cellulose and Their Applications)
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