Microscopy Observation on Nanocellulose from Kenaf Fibre

Surip, Siti Norasmah; Jaafar, Wan Nor Raihan Wan; Azmi, Nurul Nadiah; Anwar, U. M. K.

doi:10.4028/www.scientific.net/amr.488-489.72

Cited by 22 publications

(7 citation statements)

References 12 publications

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“…The peaks in the 3,344-3,415 and 1,635-1,645 cm -1 regions were attributed to O-H stretching and bending vibrations, respectively, of hydrogen bonded hydroxyl (OH) groups of absorbed water, aliphatic primary and secondary alcohols found in cellulose, hemicellulose, and carboxylic acids in extractives. 12,21 The peaks at 1,701-1,737 cm -1 in raw OPF corresponded to the C=O stretching of hemicellulose and lignin while in CNC, the peaks were shorter which indicated lesser amount of the chemical components available in the sample. It can also be observed that the peaks at 1,509-1,609 cm -1 which corresponded to C=C aromatic skeletal vibration of lignin only appeared in raw OPF.…”

Section: Ftir Spectroscopymentioning

confidence: 99%

Oil Palm Frond Waste for the Production of Cellulose Nanocrystals

Nordin¹,

Sulaiman²,

Hashim³

et al. 2017

JPS

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Section: Ftir Spectroscopymentioning

confidence: 99%

Oil Palm Frond Waste for the Production of Cellulose Nanocrystals

Nordin¹,

Sulaiman²,

Hashim³

et al. 2017

JPS

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“…Sihag et al [381] prepared NCs from sawdust by cryo-crushing and ultrasonication having NCs has a size of 10-100 μm. Surip et al [382] produced NCs by pulverisette and cryocrushing.…”

Section: Mechanical Treatment For Nanocellulose Productionmentioning

confidence: 99%

Biomedical engineering aspects of nanocellulose: a review

Rai

Dhar

2022

Nanotechnology

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Cellulose is one of the most abundant renewable biopolymer in nature and is present as major constituent in both plant cell walls as well as synthesized by some microorganisms as extracellular products. In both the systems, cellulose self-assembles into a hierarchical ordered architecture to form micro to nano-fibrillated structures, on basis of which it is classified into various forms. Nanocellulose (NCs) exist as rod-shaped highly crystalline cellulose nanocrystals (CNC) to high aspect ratio cellulose nanofibers (CNF), micro-fibrillated cellulose (MFC) and bacterial cellulose (BC), depending upon the origin, structural and morphological properties. Moreover, NCs have been processed into diversified products ranging from composite films, coatings, hydrogels, aerogels, xerogels, organogels, rheological modifiers, optically active birefringent colored films using traditional-to-advanced manufacturing techniques. With such versatility in structure-property, NCs have profound application in areas of healthcare, packaging, cosmetics, energy, food, electronics, bioremediation, and biomedicine with promising commercial potential. Herein this review, we highlight the recent advancements in synthesis, fabrication, processing of NCs, with strategic chemical modification routes to tailor its properties for targeted biomedical applications. We also study the basic mechanism and models for biosynthesis of cellulose in both plant and microbial systems and understand the structural insights of NC polymorphism. The kinetics study for both enzymatic/chemical modifications of NCs and microbial growth behavior of BC under various reactor configurations are studied. The challenges associated with the commercial aspects as well as industrial scale production of pristine and functionalized NCs to meet the growing demands of market are discussed and prospective strategies to mitigate them are described. Finally, post chemical modification evaluation of biological and inherent properties of NC are important to determine their efficacy for development of various products and technologies directed for biomedical applications.

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“…Various mechanical shearing methods or a combination of both chemical and mechanical methods can be used to obtain NFC. For example, Surip et al [ 33 ] had produced NFC of 40–200 nm in diameter from kenaf fiber which was treated with alkali followed by acidic treatment (HCl) before it was mechanically processed by using pulverisette and cryo-crushing. In general NFC is a material composed by nanosized cellulose fibrils with a high aspect ratio (length to width ratio).…”

Section: Isolation and Chemical Modifications Of Cellulosementioning

confidence: 99%

Potential Applications of Nanocellulose-Containing Materials in the Biomedical Field

et al. 2017

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Because of its high biocompatibility, bio-degradability, low-cost and easy availability, cellulose finds application in disparate areas of research. Here we focus our attention on the most recent and attractive potential applications of cellulose in the biomedical field. We first describe the chemical/structural composition of cellulose fibers, the cellulose sources/features and cellulose chemical modifications employed to improve its properties. We then move to the description of cellulose potential applications in biomedicine. In this field, cellulose is most considered in recent research in the form of nano-sized particle, i.e., nanofiber cellulose (NFC) or cellulose nanocrystal (CNC). NFC is obtained from cellulose via chemical and mechanical methods. CNC can be obtained from macroscopic or microscopic forms of cellulose following strong acid hydrolysis. NFC and CNC are used for several reasons including the mechanical properties, the extended surface area and the low toxicity. Here we present some potential applications of nano-sized cellulose in the fields of wound healing, bone-cartilage regeneration, dental application and different human diseases including cancer. To witness the close proximity of nano-sized cellulose to the practical biomedical use, examples of recent clinical trials are also reported. Altogether, the described examples strongly support the enormous application potential of nano-sized cellulose in the biomedical field.

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Microscopy Observation on Nanocellulose from Kenaf Fibre

Cited by 22 publications

References 12 publications

Oil Palm Frond Waste for the Production of Cellulose Nanocrystals

Oil Palm Frond Waste for the Production of Cellulose Nanocrystals

Biomedical engineering aspects of nanocellulose: a review

Potential Applications of Nanocellulose-Containing Materials in the Biomedical Field

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