Physical and antimicrobial characterization of self assembled silver nanoparticle/chitosan onto low density polyethylene film as active packaging polymer
Colloidal Silver nanoparticles with a size of 5 nm produced by chemical reduction using poly ethylene glycol (PEG 200). Layers of silver nanoparticles and chitosan were deposited onto low density polyethylene (LDPE) substrate by layer by layer (LBL) self-assembly technique. Silver nanocomposite film...
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| Format: | Article |
| Language: | English |
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Trans Tech Publications
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/34914/1/Physical%20and%20antimicrobial%20characterization%20of%20self%20assembled%20silver%20nanoparticlechitosan%20onto%20low%20density%20polyethylene%20film%20as%20active%20packaging%20polymer.pdf |
| _version_ | 1825948543002607616 |
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| author | Jokar, Maryam Abdul Rahman, Russly Abdullah, Luqman Chuah |
| author_facet | Jokar, Maryam Abdul Rahman, Russly Abdullah, Luqman Chuah |
| author_sort | Jokar, Maryam |
| collection | UPM |
| description | Colloidal Silver nanoparticles with a size of 5 nm produced by chemical reduction using poly ethylene glycol (PEG 200). Layers of silver nanoparticles and chitosan were deposited onto low density polyethylene (LDPE) substrate by layer by layer (LBL) self-assembly technique. Silver nanocomposite films were built by sequential dipping of LDPE film in either anionic silver nanoparticles or cationic chitosan. Silver nanoparticles and chitosan led to the formation of nanocomposite films possessing antimicrobial properties with the thickness of 2, 4, 8, 12 and 20 layers. Silver nanocomposite films were characterized by atomic force microscopy (AFM). Thermal, mechanical and barrier properties of LBL deposited nanocomposite films were investigated. Results showed that the LBL deposition of silver nanoparticles and chitosan increased the crystallinity of the composites and also improved mechanical and barrier properties of LDPE film significantly (p<0.05). Antimicrobial activity of silver nanocomposites against Escherichia coli and Staphylococcus aureus was evaluated. Growth kinetic parameters of E.coli and S.aureus affected by silver nanocomposites were calculated by modeling of absorbance data according to Gomperz equation. LDPE-silver nanocomposite affected bacterial growth parameters significantly (p<0.05). The specific growth rate reduced from 0.30 to 0.11 h-1 for E. coli and decreased 0.27 to 0.06 h-1 for S. aureus. |
| first_indexed | 2024-03-06T08:30:28Z |
| format | Article |
| id | upm.eprints-34914 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:30:28Z |
| publishDate | 2014 |
| publisher | Trans Tech Publications |
| record_format | dspace |
| spelling | upm.eprints-349142016-10-10T08:05:26Z http://psasir.upm.edu.my/id/eprint/34914/ Physical and antimicrobial characterization of self assembled silver nanoparticle/chitosan onto low density polyethylene film as active packaging polymer Jokar, Maryam Abdul Rahman, Russly Abdullah, Luqman Chuah Colloidal Silver nanoparticles with a size of 5 nm produced by chemical reduction using poly ethylene glycol (PEG 200). Layers of silver nanoparticles and chitosan were deposited onto low density polyethylene (LDPE) substrate by layer by layer (LBL) self-assembly technique. Silver nanocomposite films were built by sequential dipping of LDPE film in either anionic silver nanoparticles or cationic chitosan. Silver nanoparticles and chitosan led to the formation of nanocomposite films possessing antimicrobial properties with the thickness of 2, 4, 8, 12 and 20 layers. Silver nanocomposite films were characterized by atomic force microscopy (AFM). Thermal, mechanical and barrier properties of LBL deposited nanocomposite films were investigated. Results showed that the LBL deposition of silver nanoparticles and chitosan increased the crystallinity of the composites and also improved mechanical and barrier properties of LDPE film significantly (p<0.05). Antimicrobial activity of silver nanocomposites against Escherichia coli and Staphylococcus aureus was evaluated. Growth kinetic parameters of E.coli and S.aureus affected by silver nanocomposites were calculated by modeling of absorbance data according to Gomperz equation. LDPE-silver nanocomposite affected bacterial growth parameters significantly (p<0.05). The specific growth rate reduced from 0.30 to 0.11 h-1 for E. coli and decreased 0.27 to 0.06 h-1 for S. aureus. Trans Tech Publications 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/34914/1/Physical%20and%20antimicrobial%20characterization%20of%20self%20assembled%20silver%20nanoparticlechitosan%20onto%20low%20density%20polyethylene%20film%20as%20active%20packaging%20polymer.pdf Jokar, Maryam and Abdul Rahman, Russly and Abdullah, Luqman Chuah (2014) Physical and antimicrobial characterization of self assembled silver nanoparticle/chitosan onto low density polyethylene film as active packaging polymer. Journal of Nano Research, 27. pp. 53-64. ISSN 1662-5250; ESSN: 1661-9897 http://www.scientific.net/JNanoR.27.53 10.4028/www.scientific.net/JNanoR.27.53 |
| spellingShingle | Jokar, Maryam Abdul Rahman, Russly Abdullah, Luqman Chuah Physical and antimicrobial characterization of self assembled silver nanoparticle/chitosan onto low density polyethylene film as active packaging polymer |
| title | Physical and antimicrobial characterization of self assembled silver nanoparticle/chitosan onto low density polyethylene film as active packaging polymer |
| title_full | Physical and antimicrobial characterization of self assembled silver nanoparticle/chitosan onto low density polyethylene film as active packaging polymer |
| title_fullStr | Physical and antimicrobial characterization of self assembled silver nanoparticle/chitosan onto low density polyethylene film as active packaging polymer |
| title_full_unstemmed | Physical and antimicrobial characterization of self assembled silver nanoparticle/chitosan onto low density polyethylene film as active packaging polymer |
| title_short | Physical and antimicrobial characterization of self assembled silver nanoparticle/chitosan onto low density polyethylene film as active packaging polymer |
| title_sort | physical and antimicrobial characterization of self assembled silver nanoparticle chitosan onto low density polyethylene film as active packaging polymer |
| url | http://psasir.upm.edu.my/id/eprint/34914/1/Physical%20and%20antimicrobial%20characterization%20of%20self%20assembled%20silver%20nanoparticlechitosan%20onto%20low%20density%20polyethylene%20film%20as%20active%20packaging%20polymer.pdf |
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