Preparation And Properties Of Cinnamon Essential Oil Loaded Antibacterial Nanocellulose/chitosan Aerogels For Biomedical Applications

Aerogel is a novel functional material consists of fibers scaffold and air, without water or any other solvent. Pure nanocellulose aerogel has numerous unique characteristics but it normally combined with inorganic materials to overcome its undesired drawbacks such as the high water absorption and p...

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Main Author:	Yahya, Esam Bashir Abdulsalam
Format:	Thesis
Language:	English
Published:	2022
Subjects:	T1-995 Technology(General)
Online Access:	http://eprints.usm.my/59258/1/ESAM%20BASHIR%20ABDULSALAM%20YAHYA%20-%20TESIS24.pdf
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spelling	my-usm-ep.592582023-08-24T07:44:12Z Preparation And Properties Of Cinnamon Essential Oil Loaded Antibacterial Nanocellulose/chitosan Aerogels For Biomedical Applications 2022-04 Yahya, Esam Bashir Abdulsalam T1-995 Technology(General) Aerogel is a novel functional material consists of fibers scaffold and air, without water or any other solvent. Pure nanocellulose aerogel has numerous unique characteristics but it normally combined with inorganic materials to overcome its undesired drawbacks such as the high water absorption and poor mechanical properties, which favour the microbial colonization in its surfaces. The aim of this study was to isolate and characterize cellulose nano fibers (CNFs) from kenaf bast fibers using supercritical carbon dioxide (Sc.CO2) and investigate its role of Sc.CO2 in enhancing the properties of CNFs. The study also aim to fabricate and characterize antibacterial CNFs/chitosan aerogels, cross-linking the isolated CNFs with chitosan and loading the aerogel with cinnamon essential oil as the main antibacterial agent. The aerogel was fabricated using a green approach; consist of high-pressure homogenization and freeze-drying techniques. The results of CNFs isolation confirm the ability of Sc.CO2 to enhance the properties of isolated CNFs compared with non-Sc.CO2 obtained CNFs, in term of particle size, thermal properties and zeta potential value. The Sc.CO2 obtained CNFs had an average fibre length, and diameter of 53.72 and 7.14 nm, respectively, while non-Sc.CO2 obtained CNFs had longer fibre length and diameter (302.87 and 97.93 nm). Higher thermal stability and lower negativity value was also recorded for Sc.CO2 obtained CNFs. Extraction of cinnamon essential oil was conducted using Sc.CO2, which was found to be of low yield but high purity. 2022-04 Thesis http://eprints.usm.my/59258/ http://eprints.usm.my/59258/1/ESAM%20BASHIR%20ABDULSALAM%20YAHYA%20-%20TESIS24.pdf application/pdf en public phd doctoral Universiti Sains Malaysia Pusat Pengajian Teknologi Industri
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	T1-995 Technology(General)
spellingShingle	T1-995 Technology(General) Yahya, Esam Bashir Abdulsalam Preparation And Properties Of Cinnamon Essential Oil Loaded Antibacterial Nanocellulose/chitosan Aerogels For Biomedical Applications
description	Aerogel is a novel functional material consists of fibers scaffold and air, without water or any other solvent. Pure nanocellulose aerogel has numerous unique characteristics but it normally combined with inorganic materials to overcome its undesired drawbacks such as the high water absorption and poor mechanical properties, which favour the microbial colonization in its surfaces. The aim of this study was to isolate and characterize cellulose nano fibers (CNFs) from kenaf bast fibers using supercritical carbon dioxide (Sc.CO2) and investigate its role of Sc.CO2 in enhancing the properties of CNFs. The study also aim to fabricate and characterize antibacterial CNFs/chitosan aerogels, cross-linking the isolated CNFs with chitosan and loading the aerogel with cinnamon essential oil as the main antibacterial agent. The aerogel was fabricated using a green approach; consist of high-pressure homogenization and freeze-drying techniques. The results of CNFs isolation confirm the ability of Sc.CO2 to enhance the properties of isolated CNFs compared with non-Sc.CO2 obtained CNFs, in term of particle size, thermal properties and zeta potential value. The Sc.CO2 obtained CNFs had an average fibre length, and diameter of 53.72 and 7.14 nm, respectively, while non-Sc.CO2 obtained CNFs had longer fibre length and diameter (302.87 and 97.93 nm). Higher thermal stability and lower negativity value was also recorded for Sc.CO2 obtained CNFs. Extraction of cinnamon essential oil was conducted using Sc.CO2, which was found to be of low yield but high purity.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Yahya, Esam Bashir Abdulsalam
author_facet	Yahya, Esam Bashir Abdulsalam
author_sort	Yahya, Esam Bashir Abdulsalam
title	Preparation And Properties Of Cinnamon Essential Oil Loaded Antibacterial Nanocellulose/chitosan Aerogels For Biomedical Applications
title_short	Preparation And Properties Of Cinnamon Essential Oil Loaded Antibacterial Nanocellulose/chitosan Aerogels For Biomedical Applications
title_full	Preparation And Properties Of Cinnamon Essential Oil Loaded Antibacterial Nanocellulose/chitosan Aerogels For Biomedical Applications
title_fullStr	Preparation And Properties Of Cinnamon Essential Oil Loaded Antibacterial Nanocellulose/chitosan Aerogels For Biomedical Applications
title_full_unstemmed	Preparation And Properties Of Cinnamon Essential Oil Loaded Antibacterial Nanocellulose/chitosan Aerogels For Biomedical Applications
title_sort	preparation and properties of cinnamon essential oil loaded antibacterial nanocellulose/chitosan aerogels for biomedical applications
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Teknologi Industri
publishDate	2022
url	http://eprints.usm.my/59258/1/ESAM%20BASHIR%20ABDULSALAM%20YAHYA%20-%20TESIS24.pdf
_version_	1776101274029129728

Preparation And Properties Of Cinnamon Essential Oil Loaded Antibacterial Nanocellulose/chitosan Aerogels For Biomedical Applications

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