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Nanomaterials
Special Issues
Emerging Applications of Cellulose Nanocrystal and Its Composites
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Emerging Applications of Cellulose Nanocrystal and Its Composites

A special issue of Nanomaterials (ISSN 2079-4991).

Deadline for manuscript submissions: closed (30 September 2016) | Viewed by 39949

Special Issue Editors

Prof. Dr. John H.T. Luong

E-Mail Website
Guest Editor
Innovative Chromatography Group, Irish Separation Science Cluster (ISSC), School of Chemistry, University College Cork, Cork, Ireland
Interests: biosensors; immunoassays; functional biomaterials; nanocomposites; nanopolymers
Special Issues, Collections and Topics in MDPI journals
Dr. Sandeep K. Vashist

E-Mail Website
Guest Editor
Fapon Biotech Inc., Reuterweg 48, 52080 Aachen, Germany
Interests: immunoassays; IVD; POC technologies; molecular diagnostics; next-generation sequencing; mobile healthcare
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Cellulose nanocrystal (CNC) or nanocrystalline cellulose (NCC), a rod-shaped nanoscale material with exceptional strength and physicochemical properties, can be prepared from inexpensive and abundant biomass and biomass waste. This emerging green material has attracted a significant amount of research, industrial activity, and media attention over the last 5–10 years.

NCC has traditionally been prepared by acid hydrolysis, but greener approaches have emerged for the synthesis of this fascinating material. NCC exhibits low toxicity and poses no serious environmental concerns. NCC can be chemically modified to form nanocomposites with polymers, nanoparticles, and other nanomaterials towards the development of over 20 potential large-scale applications.

This Special Issue covers a broad spectrum of emerging NCC bioapplications related to enzyme/protein immobilization, bioimaging, biosensing, immunoassays, antimicrobial properties, medical materials, green catalysis, waste removal, drug formulation, and controlled drug delivery. This peer-reviewed open access forum also considers review papers that update novel chemical functionalities and optical properties of pristine and modified NCC and their nanocomposites.

Prof. Dr. John H.T. Luong
Dr. Sandeep Kumar Vashist
Guest Editors

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. Nanomaterials 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 2900 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
  • nanocomposites
  • synthesis
  • functionalization
  • physio-chemical properties
  • bioapplications

Published Papers (3 papers)

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Research

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3519 KiB  
Article
A Tunable Photoluminescent Composite of Cellulose Nanofibrils and CdS Quantum Dots
by Qinwen Wang, Aimin Tang, Yuan Liu, Zhiqiang Fang and Shiyu Fu
Nanomaterials 2016, 6(9), 164; https://doi.org/10.3390/nano6090164 - 07 Sep 2016
Cited by 11 | Viewed by 5468
Abstract
The preparation of fluorescent nanocomposite materials with tunable emission wavelengths by combining cellulose nanofibrils (CNFs) with inorganic nanoparticles is important for promoting CNFs applications. A CNF/CdS nanocomposite was prepared via in situ compositing at room temperature on oxidized CNFs with CdS quantum dots. [...] Read more.
The preparation of fluorescent nanocomposite materials with tunable emission wavelengths by combining cellulose nanofibrils (CNFs) with inorganic nanoparticles is important for promoting CNFs applications. A CNF/CdS nanocomposite was prepared via in situ compositing at room temperature on oxidized CNFs with CdS quantum dots. By controlling the –COOH/Cd2+ ratio on the CNF, the feeding time of Na2S and the ultrasonic maturing time, the size of the CdS quantum dots on the CNF surface could be adjusted so that to obtain the CNF/CdS nanocomposite material with different fluorescent colors. The results indicated that the CdS particles quantized were evenly distributed on the CNF. The maximum average size of the CdS nanoparticles glowed red under the excitation of UV light was 5.34 nm, which could be obtained with a –COOH/Cd2+ ratio of 1.0, a Na2S feeding time of 20 min, and an ultrasonic maturing time of 60 min. A series of CNF/CdS nanocomposite materials were obtained with CdS nanoparticle sizes varying from 3.44 nm to 5.34 nm, the emission wavelength of which varied from 546 nm to 655 nm, and their fluorescence color changed from green to yellow to red. This is the first time the fluorescence-tunable effect of the CNF/CdS nanocomposite has been realized. Full article
(This article belongs to the Special Issue Emerging Applications of Cellulose Nanocrystal and Its Composites)
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Review

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5063 KiB  
Review
Nanocellulose-Based Materials for Water Purification
by Hugo Voisin, Lennart Bergström, Peng Liu and Aji P. Mathew
Nanomaterials 2017, 7(3), 57; https://doi.org/10.3390/nano7030057 - 05 Mar 2017
Cited by 361 | Viewed by 24237
Abstract
Nanocellulose is a renewable material that combines a high surface area with high strength, chemical inertness, and versatile surface chemistry. In this review, we will briefly describe how nanocellulose is produced, and present—in particular, how nanocellulose and its surface modified versions affects the [...] Read more.
Nanocellulose is a renewable material that combines a high surface area with high strength, chemical inertness, and versatile surface chemistry. In this review, we will briefly describe how nanocellulose is produced, and present—in particular, how nanocellulose and its surface modified versions affects the adsorption behavior of important water pollutants, e.g., heavy metal species, dyes, microbes, and organic molecules. The processing of nanocellulose-based membranes and filters for water purification will be described in detail, and the uptake capacity, selectivity, and removal efficiency will also be discussed. The processing and performance of nanocellulose-based membranes, which combine a high removal efficiency with anti-fouling properties, will be highlighted. Full article
(This article belongs to the Special Issue Emerging Applications of Cellulose Nanocrystal and Its Composites)
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3071 KiB  
Review
Recent Advances in Chiral Nematic Structure and Iridescent Color of Cellulose Nanocrystal Films
by Derek G. Gray
Nanomaterials 2016, 6(11), 213; https://doi.org/10.3390/nano6110213 - 14 Nov 2016
Cited by 108 | Viewed by 9382
Abstract
One unique property of cellulose nanocrystals (CNC) is their property of forming suspensions with chiral nematic order. This order can be preserved in films cast from the suspensions, raising the possibility of applications as photonic materials and templates. However, it has proved difficult [...] Read more.
One unique property of cellulose nanocrystals (CNC) is their property of forming suspensions with chiral nematic order. This order can be preserved in films cast from the suspensions, raising the possibility of applications as photonic materials and templates. However, it has proved difficult to generate uniform, well-ordered chiral nematic materials from CNC. Recently, the importance of kinetic arrest due to gel formation in the later stages of evaporation has been recognized as a key step in film formation. In this brief review, recent developments regarding the structure of chiral nematic suspensions and films as monitored by polarized light microscopy are outlined, and attention is drawn to the importance of shear forces on the self-organization process. Full article
(This article belongs to the Special Issue Emerging Applications of Cellulose Nanocrystal and Its Composites)
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