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Investigation of Functionalized Surface Charges of Thermoplastic Starch/Zinc Oxide Nanocomposite Films Using Polyaniline: The Potential of Improved Antibacterial Properties

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Abstract
Improving the antibacterial activity of biodegradable materials is crucial for combatting
widespread drug-resistant bacteria and plastic pollutants. In this work, we studied polyaniline
(PANI)-functionalized zinc oxide nanoparticles (ZnO NPs) to improve surface charges. A PANI?functionalized ZnO NP surface was prepared using a simple impregnation technique. The PANI
functionalization of ZnO successfully increased the positive surface charge of the ZnO NPs. In addi?tion, PANI-functionalized ZnO improved mechanical properties and thermal stability. Besides those
properties, the water permeability of the bionanocomposite films was decreased due to their increased
hydrophobicity. PANI-functionalized ZnO NPs were applied to thermoplastic starch (TPS) films for
physical properties and antibacterial studies using Escherichia coli (E. coli) and Staphylococcus aureus
(S. aureus). The PANI-functionalized ZnO bionanocomposite films exhibited excellent antibacterial
activity for both E. coli (76%) and S. aureus (72%). This result suggests that PANI-functionalized ZnO
NPs can improve the antibacterial activity of TPS-based bionanocomposite films.
Author(s)
Korakot Charoensri로디오크 찻차이Duangmanee WongratanaphisanJung A. Ko정진석박현진
Issued Date
2021
Type
Article
Keyword
thermoplastic starchFunctionalized ZnO NPsPolyanilinepositive surface chargeantibacterial activity
DOI
10.3390/polym13030425
URI
https://oak.ulsan.ac.kr/handle/2021.oak/9217
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_doaj_primary_oai_doaj_org_article_b1adb28a53ba419bbfeb7e711247f1cd&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Investigation%20of%20Functionalized%20Surface%20Charges%20of%20Thermoplastic%20Starch%2FZinc%20Oxide%20Nanocomposite%20Films%20Using%20Polyaniline:%20The%20Potential%20of%20Improved%20Antibacterial%20Properties&offset=0&pcAvailability=true
Publisher
Polymers
Location
스위스
Language
영어
ISSN
2073-4360
Citation Volume
13
Citation Number
3
Citation Start Page
425
Citation End Page
425
Appears in Collections:
Engineering > Chemical Engineering
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