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ZnO-containing nanocomposites produced from Mentha pulegium L. of a new HEMA-based methacrylate copolymer: improvement the thermal and antimicrobial effect. JOURNAL OF POLYMER RESEARCH 2023. [DOI: 10.1007/s10965-023-03461-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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2
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Effect of Repeated Contact to Food Simulants on the Chemical and Functional Properties of Nano ZnO Composited LDPE Films for Reusable Food Packaging. Polymers (Basel) 2022; 15:polym15010009. [PMID: 36616360 PMCID: PMC9824836 DOI: 10.3390/polym15010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/05/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
The effect of repeated contact with food simulants on the properties and functionality of zinc oxide (ZnO) in nanocomposite films was investigated to examine possible safety hazards from the point of view of long-term use as food packaging. Low-density polyethylene (LDPE) embedded with 5 wt% nano-ZnO was immersed in distilled water, 50% ethanol, 4% acetic acid, and n-heptane. The cycle of immersion-rinse-dry was repeated up to 40 times for same sample under constant condition. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray absorption spectroscopy (XAS), field emission-scanning electron microscopy (FE-SEM), and UV-Vis spectroscopy analyses were performed to identify the changes in the chemical and functional properties of the nanocomposite film. Acetic acid had the greatest impact on the LDPE-ZnO nanocomposite films, while other food simulants caused little change. A new carboxylate bond was formed by the reaction of ZnO with acetic acid, as evidenced by the FTIR spectra. In addition, XRD and XAS confirmed the phase changes of nano-ZnO into zinc salts such as zinc hydroxy acetate or zinc acetate dihydrate. Furthermore, the light barrier property of the nanocomposite film drastically decreased, owing to the change in the bandgap of ZnO and film morphology.
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3
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Puspasari V, Ridhova A, Hermawan A, Amal MI, Khan MM. ZnO-based antimicrobial coatings for biomedical applications. Bioprocess Biosyst Eng 2022; 45:1421-1445. [PMID: 35608710 PMCID: PMC9127292 DOI: 10.1007/s00449-022-02733-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/28/2022] [Indexed: 12/24/2022]
Abstract
Rapid transmission of infectious microorganisms such as viruses and bacteria through person-to-person contact has contributed significantly to global health issues. The high survivability of these microorganisms on the material surface enumerates their transmissibility to the susceptible patient. The antimicrobial coating has emerged as one of the most interesting technologies to prevent growth and subsequently kill disease-causing microorganisms. It offers an effective solution a non-invasive, low-cost, easy-in-use, side-effect-free, and environmentally friendly method to prevent nosocomial infection. Among antimicrobial coating, zinc oxide (ZnO) stands as one of the excellent materials owing to zero toxicity, high biocompatibility to human organs, good stability, high abundancy, affordability, and high photocatalytic performance to kill various infectious pathogens. Therefore, this review provides the latest research progress on advanced applications of ZnO nanostructure-based antibacterial coatings for medical devices, biomedical applications, and health care facilities. Finally, future challenges and clinical practices of ZnO-based antibacterial coating are addressed.
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Affiliation(s)
- Vinda Puspasari
- Research Center for Metallurgy, National Research and Innovation Agency, PUSPIPTEK Gd. 470, South Tangerang, Banten, 15315, Indonesia
| | - Aga Ridhova
- Research Center for Metallurgy, National Research and Innovation Agency, PUSPIPTEK Gd. 470, South Tangerang, Banten, 15315, Indonesia
| | - Angga Hermawan
- Research Center for Advanced Materials, National Research and Innovation Agency, South Tangerang, Banten, 15315, Indonesia
| | - Muhamad Ikhlasul Amal
- Research Center for Metallurgy, National Research and Innovation Agency, PUSPIPTEK Gd. 470, South Tangerang, Banten, 15315, Indonesia
| | - Mohammad Mansoob Khan
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam.
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4
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Bioactive films based on barley β-glucans and ZnO for wound healing applications. Carbohydr Polym 2021; 272:118442. [PMID: 34420708 DOI: 10.1016/j.carbpol.2021.118442] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/21/2021] [Accepted: 07/12/2021] [Indexed: 01/10/2023]
Abstract
In this study, mixtures based on β-glucans and proteins are extracted from barley, in mild (MA) and high (HA) alkaline conditions, and employed with zinc oxide (ZnO) to prepare bioactive films for wound healing. Composition of extracts and properties of resulting films depend on pH extraction conditions. MA based samples show weak physical interactions among mixture components, whereas in HA films the extent of these interactions is larger. Consequently, their chemico-physical properties are significantly different, as demonstrated by FT-IR, thermal, mechanical and morphological analyses. ZnO with its bound water molecules acts as a slight plasticizer in MA, as shown by the lower Tg and the decrease of elastic modulus. In HA, this effect is evidenced up to ZnO 1%, and above this concentration an increase of strength at break is observed. Finally, MA and HA films show intrinsic antimicrobial properties, enhanced by ZnO, which make them exploitable as wound dressings.
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5
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Shin H, Kim S, Kim J, Kong S, Lee Y, Lee J. Preparation of 3‐pentadecylphenol‐modified cellulose nanocrystal and its application as a filler to polypropylene nanocomposites having improved antibacterial and mechanical properties. J Appl Polym Sci 2021. [DOI: 10.1002/app.51848] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Huiseob Shin
- School of Chemical and Biological Engineering, and Institute of Chemical Processes Seoul National University Seoul Republic of Korea
| | - Sangwan Kim
- School of Chemical and Biological Engineering, and Institute of Chemical Processes Seoul National University Seoul Republic of Korea
| | - Jinseok Kim
- School of Chemical and Biological Engineering, and Institute of Chemical Processes Seoul National University Seoul Republic of Korea
| | - Saerom Kong
- School of Chemical and Biological Engineering, and Institute of Chemical Processes Seoul National University Seoul Republic of Korea
| | - Yonghoon Lee
- Chemical Pilot Bldg. S‐OIL TS&D Center Seoul Republic of Korea
| | - Jong‐Chan Lee
- School of Chemical and Biological Engineering, and Institute of Chemical Processes Seoul National University Seoul Republic of Korea
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6
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Dimitrakellis P, Kaprou G, Papavieros G, Mastellos D, Constantoudis V, Tserepi A, Gogolides E. Enhanced antibacterial activity of ZnO-PMMA nanocomposites by selective plasma etching in atmospheric pressure. MICRO AND NANO ENGINEERING 2021. [DOI: 10.1016/j.mne.2021.100098] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Ma ZL, Tsou CH, Yao YL, De Guzman MR, Wu CS, Gao C, Yang T, Chen ZJ, Zeng R, Li Y, Yang TT, Wang P, Lin L. Thermal Properties and Barrier Performance of Antibacterial High-Density Polyethylene Reinforced with Carboxyl Graphene-Grafted Modified High-Density Polyethylene. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02143] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Zheng-Lu Ma
- Material Corrosion and Protection Key Laboratory of Sichuan Province, School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Chi-Hui Tsou
- Material Corrosion and Protection Key Laboratory of Sichuan Province, School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
- Sichuan Golden-Elephant Sincerity Chemical Co. Ltd., Meishan 620010, China
- Sichuan Yibin Plastic Packaging Materials Co. Ltd., Yibin 644007, China
- Sichuan Zhixiangyi Technology Co. Ltd., Chengdu 610051, China
- Sichuan Zhirenfa Environmental Protection Technology Co. Ltd., Zigong 643000, China
| | - You-Li Yao
- Material Corrosion and Protection Key Laboratory of Sichuan Province, School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Manuel Reyes De Guzman
- Material Corrosion and Protection Key Laboratory of Sichuan Province, School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Chin-San Wu
- Department of Applied Cosmetology, Kao Yuan University, Kaohsiung County 82101, Taiwan (R.O.C.)
| | - Chen Gao
- Material Corrosion and Protection Key Laboratory of Sichuan Province, School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Tao Yang
- Material Corrosion and Protection Key Laboratory of Sichuan Province, School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Zhi-Jun Chen
- Material Corrosion and Protection Key Laboratory of Sichuan Province, School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Rui Zeng
- Material Corrosion and Protection Key Laboratory of Sichuan Province, School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Yu Li
- Material Corrosion and Protection Key Laboratory of Sichuan Province, School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Ting-Ting Yang
- Material Corrosion and Protection Key Laboratory of Sichuan Province, School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Ping Wang
- Material Corrosion and Protection Key Laboratory of Sichuan Province, School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Li Lin
- Material Corrosion and Protection Key Laboratory of Sichuan Province, School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
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8
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Maleic anhydride grafted acrylonitrile butadiene styrene (ABS)/zinc oxide nanocomposite: an anti-microbial material. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02632-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Huang C, Mou W, Zhao L, Liu Y. Design of super‐tough and antibacterial
PPR
/
nano‐ZnO
composites based on the excellent dispersion of
ZnO
particles. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210100] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Chaojie Huang
- School of Mechanical and Automotive Engineering South China University of Technology Guangzhou China
| | - Wenjie Mou
- School of Mechanical and Automotive Engineering South China University of Technology Guangzhou China
- State Key Laboratory of Materials Processing and Die and Mould Technology Huazhong University of Science and Technology Wuhan China
| | - Liangzhi Zhao
- School of Mechanical and Automotive Engineering South China University of Technology Guangzhou China
| | - Ye Liu
- Department of Health Management, Center for Orthopaedic Surgery The Third Affiliated Hospital of Southern Medical University Guangzhou China
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10
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Electro-Stimulated Release of Poorly Water-Soluble Drug from Poly(Lactic Acid)/Carboxymethyl Cellulose/ZnO Nanocomposite Film. Pharm Res 2020; 37:178. [DOI: 10.1007/s11095-020-02910-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 08/13/2020] [Indexed: 12/12/2022]
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11
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Kiran Kumar ABV, Billa S, Shankar EG, Subha MCS. C, N dual-doped ZnO nanofoams: a potential antimicrobial agent, an efficient visible light photocatalyst and SXAS studies. JOURNAL OF SYNCHROTRON RADIATION 2020; 27:90-99. [PMID: 31868741 DOI: 10.1107/s160057751901364x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 10/05/2019] [Indexed: 06/10/2023]
Abstract
It is crucial to develop an environmentally friendly and low-cost method to treat industrial effluent that contains soluble dyes and microbes. Most of the photocatalysts have been studied using an external light source that increases the cost of the purification process of effluent. This study focuses on developing efficient solar photocatalytic nanofoams. The controlled growth of ZnO nanofoams (CNZ nanofoams) in a simple method of thermal oxidation using a soft template is reported. Prepared nanofoams are characterized using X-ray diffraction, scanning electon microscopy and synchrotron soft X-ray absorption spectroscopy. By photocatalysis studies under direct sunlight it was found that within 120 min CNZ nanofoams degraded 99% of the dye. In addition, antimicrobial studies of multi-drug-resistant E. Fergusonii isolated from wastewater was carried out. These antimicrobial results showed a good inhibition zone, indicating that prepared nanofoams are both an effective solar photocatalyst and an antimicrobial agent.
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Affiliation(s)
- A B V Kiran Kumar
- Amity Institute of Nanotechnology, Amity University, Sector 125, Noida, Uttar Pradesh 201301, India
| | - Sanjeev Billa
- Amity Institute of Nanotechnology, Amity University, Sector 125, Noida, Uttar Pradesh 201301, India
| | - Edugulla Girija Shankar
- Amity Institute of Nanotechnology, Amity University, Sector 125, Noida, Uttar Pradesh 201301, India
| | - M C S Subha
- Department of Chemistry, Sri Krishnadevaraya University, Anantapur, Andhra Pradesh 515003, India
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12
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Ultraviolet Light-degradation Behavior and Antibacterial Activity of Polypropylene/ZnO Nanoparticles Fibers. Polymers (Basel) 2019; 11:polym11111841. [PMID: 31717340 PMCID: PMC6918229 DOI: 10.3390/polym11111841] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 11/05/2019] [Accepted: 11/05/2019] [Indexed: 11/17/2022] Open
Abstract
Herein, ZnO nanoparticles (NPs) were synthesized using zinc acetate and an amino hyperbranched polymer. The methods of transmission electron microscope (TEM) and X-ray Diffraction (XRD) were applied to the characterization of ZnO NPs. Polypropylene (PP)/ZnO fiber was prepared using 1–5 wt% ZnO NPs via melt spinning. The ultraviolet light (UV)-degradation behavior, antibacterial activity and mechanical properties of PP fibers were characterized. The PP fiber filled with ZnO NPs presents better mechanical properties and the resistance to UV light degradation. For the best effect, the contents of ZnO NPs were set 4 wt% in PP fiber. FTIR analysis shows significant photo-degradation of PP induced by UV irradiation and a remarkable reduction in the UV degradation of the fiber filled with ZnO NPs. It is also observed that the ZnO NPs-filled fiber has good antibacterial actives against Escherichia coli and staphylococcus aureus.
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13
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Anžlovar A, Primožič M, Švab I, Leitgeb M, Knez Ž, Žagar E. Polyolefin/ZnO Composites Prepared by Melt Processing. Molecules 2019; 24:molecules24132432. [PMID: 31269674 PMCID: PMC6651218 DOI: 10.3390/molecules24132432] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 06/26/2019] [Accepted: 06/28/2019] [Indexed: 11/24/2022] Open
Abstract
Composites of polyolefin matrices (HDPE and PP) were prepared by melt processing using two commercially available nano ZnO powders (Zinkoxyd aktiv and Zano 20). The mechanical and thermal properties, UV-Vis stability, and antibacterial activity of composites were studied. Tensile testing revealed that both nano ZnO types have no particular effect on the mechanical properties of HDPE composites, while some positive trends are observed for the PP-based composites, but only when Zano 20 was used as a nanofiller. Minimal changes in mechanical properties of composites are supported by an almost unaffected degree of crystallinity of polymer matrix. All polyolefin/ZnO composites exposed to artificial sunlight for 8–10 weeks show more pronounced color change than pure matrices. This effect is more evident for the HDPE than for the PP based composites. Color change also depends on the ZnO concentration and type; composites with Zano 20 show more intense color changes than those prepared with Zinkoxyd aktiv. Results of the antibacterial properties study show very high activity of polyolefin/ZnO composites against Staphylococcus aureus regardless of the ZnO surface modification, while antibacterial activity against Escherichia coli shows only the composites prepared with unmodified ZnO. This phenomenon is explained by different membrane structure of gram-positive (S. aureus) and gram-negative (E. coli) bacteria.
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Affiliation(s)
- Alojz Anžlovar
- Department of Polymer Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia.
| | - Mateja Primožič
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, SI-2000 Maribor, Slovenia
| | - Iztok Švab
- ISOKON d.o.o., Industrijska cesta 16, SI-3210 Slovenske Konjice, Slovenia
| | - Maja Leitgeb
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, SI-2000 Maribor, Slovenia
| | - Željko Knez
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, SI-2000 Maribor, Slovenia
| | - Ema Žagar
- Department of Polymer Chemistry and Technology, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia.
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14
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Kiran Kumar A, Saila ES, Narang P, Aishwarya M, Raina R, Gautam M, Shankar EG. Biofunctionalization and biological synthesis of the ZnO nanoparticles: The effect of Raphanus sativus (white radish) root extract on antimicrobial activity against MDR strain for wound healing applications. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2018.12.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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15
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Jaiswal L, Shankar S, Rhim JW. Applications of nanotechnology in food microbiology. METHODS IN MICROBIOLOGY 2019. [DOI: 10.1016/bs.mim.2019.03.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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16
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Metal oxide-based nanocomposites in food packaging: Applications, migration, and regulations. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2018.09.021] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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17
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Feuillolay C, Haddioui L, Verelst M, Furiga A, Marchin L, Roques C. Antimicrobial activity of metal oxide microspheres: an innovative process for homogeneous incorporation into materials. J Appl Microbiol 2018; 125:45-55. [PMID: 29502354 DOI: 10.1111/jam.13752] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 01/04/2018] [Accepted: 02/07/2018] [Indexed: 11/29/2022]
Abstract
AIMS To investigate the potent control of microbial surface contamination of an innovative process which consists in incorporating metal oxide microspheres homogeneously into materials. METHODS AND RESULTS Spherical microspheres containing zinc and magnesium oxides synthesized via a one-step manufacturing process (Pyrolyse Pulvérisée® ) and incorporated into different plastic matrices were evaluated for their antimicrobial activity according to JIS Z 2801 standard. A significant activity was observed for microsphere-added polyethylene coupons with a reduction of all tested bacteria populations, including Gram negative and Gram positive even expressing acquired antibiotic resistance (Escherichia coli ESBL, Staphylococcus aureus metiR). An antiviral activity higher than 2 log of reduction was also observed on H1N1 and HSV-1 viruses. This antimicrobial effect was dose-dependent and time-dependent for both polyethylene and polypropylene matrices. Antimicrobial activity was maintained after exposition to disinfectants and totally preserved 50 months after the preparation of the coupons. CONCLUSIONS Incorporated into plastic matrices, metal oxide microspheres showed significant antibacterial and antiviral activities. SIGNIFICANCE AND IMPACT OF STUDY This is, to our knowledge, the first report on an original process incorporating metal oxide microspheres, which have specific physico-chemical and antimicrobial properties, into materials that could be used for surface contamination prevention.
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Affiliation(s)
- C Feuillolay
- Faculté des Sciences Pharmaceutiques, Fonderephar, Toulouse Cedex 9, France
| | - L Haddioui
- Faculté des Sciences Pharmaceutiques, Fonderephar, Toulouse Cedex 9, France
| | - M Verelst
- Centre d'Elaboration de Matériaux et d'Etudes Structurales, University Paul Sabatier, UPR No 8011, Toulouse Cedex 4, France
| | - A Furiga
- Pylote SA, Dremil-Lafage, France
| | | | - C Roques
- Laboratoire de Génie Chimique (UMR 5503), Université de Toulouse, Université Paul Sabatier, Toulouse Cedex 9, France.,CHU Toulouse, Hôpital Purpan, Service de Bactériologie-Hygiène, Toulouse, France
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18
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Identification of non-intentionally added substances in food packaging nano films by gas and liquid chromatography coupled to orbitrap mass spectrometry. Talanta 2017; 172:68-77. [DOI: 10.1016/j.talanta.2017.05.023] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 05/08/2017] [Accepted: 05/10/2017] [Indexed: 11/21/2022]
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19
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Rheological, structural, ultraviolet protection and oxygen barrier properties of linear low- density polyethylene films reinforced with zinc oxide (ZnO) nanoparticles. Food Packag Shelf Life 2017. [DOI: 10.1016/j.fpsl.2017.04.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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20
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Assessment on the Effects of ZnO and Coated ZnO Particles on iPP and PLA Properties for Application in Food Packaging. COATINGS 2017. [DOI: 10.3390/coatings7020029] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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Sandreschi S, Piras AM, Batoni G, Chiellini F. Perspectives on polymeric nanostructures for the therapeutic application of antimicrobial peptides. Nanomedicine (Lond) 2016; 11:1729-44. [PMID: 27348155 DOI: 10.2217/nnm-2016-0057] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Antimicrobial peptides (AMPs) are a class of promising anti-infective molecules but their therapeutic application is opposed by their poor bioavailability, susceptibility to protease degradation and potential toxicity. The advancement of nanoformulation technologies offers encouraging perspectives for the development of novel therapeutic strategies based on AMPs to treat antibiotic resistant microbial infections. Additionally, the use of polymers endowed per-se with antibacterial properties, stands out as an innovative approach for the development of a new generation of drug delivery systems in which an enhanced antimicrobial action could be obtained by the synergic combination of bioactive polymer matrices and drugs. Herein, the latest AMPs drug delivery research is discussed.
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Affiliation(s)
- Stefania Sandreschi
- BIOlab Research Group, Department of Chemistry & Industrial Chemistry, University of Pisa, UdR INSTM Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy
| | - Anna Maria Piras
- BIOlab Research Group, Department of Chemistry & Industrial Chemistry, University of Pisa, UdR INSTM Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy
| | - Giovanna Batoni
- Department of Translational Research & New Technology in Medicine & Surgery, University of Pisa, Via S. Zeno 35-39, 56127 Pisa, Italy
| | - Federica Chiellini
- BIOlab Research Group, Department of Chemistry & Industrial Chemistry, University of Pisa, UdR INSTM Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy
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22
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Polylactic acid/zinc oxide biocomposite films for food packaging application. Int J Biol Macromol 2016; 88:254-62. [PMID: 27012896 DOI: 10.1016/j.ijbiomac.2016.03.039] [Citation(s) in RCA: 160] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 03/09/2016] [Accepted: 03/19/2016] [Indexed: 11/22/2022]
Abstract
Although PLA is much more expensive than polyolefins, such as PP and PE, there is a great interest to propose PLA based material as alternative films for food packaging being PLA derivable from natural source, compostable and biodegradable. For this purpose the research has the task to investigate and propose PLA materials with enhanced properties to be effectively and efficiently alternative to polyolefin films for food packaging application. In this contribution, biocomposite films of PLA with 1, 3 and 5wt% of ZnO have been investigated to determine mechanical, barrier and antimicrobial (against Escherichia coli) properties. It is found that the biocomposite films are characterized by a good dispersion of the ZnO particles in PLA matrix, although no previous treatment was performed on ZnO particles, such as silanization, to decrease its incompatibility with the polymer. The biocomposite films have shown good mechanical properties, decrease of permeability to CO2 and O2, and only a slight increase to water vapour. Particularly important is that, for the biocomposite with 5wt% of ZnO, the % Reduction for E. Coli test reached the value of 99.99 already after 24h.
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23
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Development of Antibacterial Composite Films Based on Isotactic Polypropylene and Coated ZnO Particles for Active Food Packaging. COATINGS 2016. [DOI: 10.3390/coatings6010004] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This study was aimed at developing new films based on isotactic polypropylene (iPP) for food packaging applications using zinc oxide (ZnO) with submicron dimension particles obtained by spray pyrolysis. To improve compatibility with iPP, the ZnO particles were coated with stearic acid (ZnOc). Composites based on iPP with 2 wt % and 5 wt % of ZnOc were prepared in a twin-screw extruder and then filmed by a calender. The effect of ZnOc on the properties of iPP were assessed and compared with those obtained in previous study on iPP/ZnO and iPP/iPPgMA/ZnO. For all composites, a homogeneous distribution and dispersion of ZnOc was obtained indicating that the coating with stearic acid of the ZnO particles reduces the surface polarity mismatch between iPP and ZnO. The iPP/ZnOc composite films have relevant antibacterial properties with respect to E. coli, higher thermal stability and improved mechanical and impact properties than the pure polymer and the composites iPP/ZnO and iPP/iPPgMA/ZnO. This study demonstrated that iPP/ZnOc films are suitable materials for potential application in the active packaging field.
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