Enhancement of the antibacterial activity of natural rubber latex foam by the incorporation of zinc oxide nanoparticles

Rathnayake, W.G.I.U.; Ismail, Hanafi; Baharin, A.; Bandara, Chaturanga D.; Rajapakse, S.

doi:10.1002/app.39601

Cited by 42 publications

(35 citation statements)

References 32 publications

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“…[1][2][3] Many approaches have been discussed to deal with bacteria's antibiotic resistance and many antibacterial agents, especially inorganic nanoparticles, 4 e.g. [15][16][17] Signicant studies indicated that silver nanoparticles have strong antibacterial effects because of their high antibacterial activity and broad antibacterial spectrum even at low concentrations, [18][19][20] and relative nontoxicity to human cells. [15][16][17] Signicant studies indicated that silver nanoparticles have strong antibacterial effects because of their high antibacterial activity and broad antibacterial spectrum even at low concentrations, [18][19][20] and relative nontoxicity to human cells.…”

Section: Introductionmentioning

confidence: 99%

Preparation of silver nanoparticles supported mesoporous silica microspheres with perpendicularly aligned mesopore channels and their antibacterial activities

Huang

Hou

et al. 2015

RSC Adv.

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In this study, a facile and effective route for the preparation of silver nanoparticles supported surface mesoporous silica microspheres with perpendicularly aligned mesopore channels and their antibacterial activities were reported. The surface mesoporous silica microspheres (mSiO 2 ) were synthesized by a sol-gel method. The mSiO 2 were then functionalized with 3-aminopropyltriethoxysilane (APTS) to provide amino functional groups for the absorption of Ag + . Silver nanoparticles were directly created on the surface of mSiO 2 by in situ chemical reduction of the Ag precursor using an ultrasonic wave reaction method. The prepared silver nanoparticle supported surface mesoporous silica nanocomposites (mSiO 2 @NH 2 @Ag) were characterized with FT-IR, X-ray photoelectron spectroscopy, X-ray diffraction, scanning electron microscopy and high-resolution transmission electron microscopy. Antibacterial activities of the synthesized mSiO 2 @NH 2 @Ag were investigated against Gram-negative Escherichia coli (E. coli) and Gram-positive Staphylococcus aureus (SAU) using the conventional plate-count method.The results demonstrated that the synthesized nanocomposites exhibited excellent antibacterial properties against E. coli and SAU. Furthermore, because of the slow release property of silver, the synthesized nanocomposites can be used as an economic recyclable material in various antibacterial applications, such as water purification systems and environmental control of bacteria.

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Section: Introductionmentioning

confidence: 99%

Preparation of silver nanoparticles supported mesoporous silica microspheres with perpendicularly aligned mesopore channels and their antibacterial activities

Huang

Hou

et al. 2015

RSC Adv.

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“…A broaden peak is observed in the n ‐SiO 2 and SSBR/ n ‐SiO 2 composites, indicating the existence of amorphous silica . Similarly, the other peaks cannot be found in the SSBR/N660 sample except for the peaks of the ZnO, corresponding to (100), (002), and (101) lattice planes of ZnO wurtzite hexagonal structure, indicating that only the highly disordered structure of carbon black N660 exists in the SSBR matrix. In addition, the XRD patterns show that the crystal structure of m‐ SiO 2 was mostly preserved and not affected significantly in SSBR matrix.…”

Section: Resultsmentioning

confidence: 91%

Influence of fillers dispersion on friction and wear performance of solution styrene butadiene rubber composites

Zhou

et al. 2016

J of Applied Polymer Sci

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Development of structure–properties relationships between the fillers/rubber matrix interface chemistry and the dispersion and interfacial adhesion properties of the rubber composites is critical to predict their bulk mechanical and tribological properties. In this paper, three solution styrene butadiene rubber (SSBR) composites containing various fillers with tailored interfacial chemistry were prepared via conventional mixing technique. Subsequently, thermal and structural features of filled SSBR composites were monitored by TG, DSC, XRD, XPS, FESEM and TEM, respectively. Sliding contact experiments were conducted to study tribological properties of styrene butadiene rubber composites under dry and wet conditions. It was shown that the SSBR filled with silicon dioxide nanoparticles significantly reduced both the friction coefficient and the wear against marble block. On the contrary, it exhibited an increased friction coefficient and wear under wet friction conditions due to the specific superior wet‐skid resistance of silicon dioxide nanopartilce filled rubber composites, a good dispersion of silicon dioxide nanopartilce in the rubber matrix and strong interfacial adhesion between nanoparticles and rubber matrix. In addition, the influence of fillers dispersion and interfacial adhesion on friction and wear of styrene butadiene rubber composites was evaluated employing theoretical calculation, and the predicted results were in agreement with the experimental observations. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43589.

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“…Sedangkan penambahan 2% ZnONP mampu meningkatkan persentase kristalin dari foam meskipun kecil. Hasil ini sejalan dengan yang dilaporkan oleh Rathnayake et al 22 , bahwa ZnONP pada foam dari karet latex alami dapat meningkatkan bagian kristalin. Penambahan EG dapat meningkatkan persentase kristalin foam tanpa penambahan dari ZnONP.…”

Section: Kristalinitasunclassified

Pengaruh Nanopartikel Zinc Oxide Dan Etilen Glikol Terhadap Sifat Fisik Dan Antimikroba Biodegradable Foam

Rahmatunisa¹,

Iriani²,

Suyatma³

et al. 2017

Jurnal Pasca

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ABSTRAKKemasan biodegradable foam dibuat dari tapioka, ampok jagung, nanopartikel zinc oxide (ZnONP) dan pemlastis etilen glikol (EG). Kemasan diproses melalui cara thermopressing. Tujuan penelitian adalah untuk mengetahui pengaruh penambahan ZnONP dan EG. Penelitian ini dilakukan dengan menggunakan rancangan acak lengkap faktorial dengan 3 kali ulangan, dilanjutkan dengan uji Duncan pada α = 5%. Terdapat dua faktor yang digunakan yaitu ZnONP terdiri dari 3 taraf yaitu 0%, 1%, dan 2% serta EG yang terdiri atas 2 taraf yaitu 0% dan 5%. Pengaruh penambahan ZnONP dan EG terhadap sifat fisik dan antimikroba dievaluasi dengan menguji parameter warna, kadar air, daya serap air, densitas, kristalinitas, struktur morfologi, sifat termal, dan sifat antimikroba. Perlakuan terbaik adalah Z3P1 (ZnONP 2% dan EG 0%), karakteristik biodegradable foam yang dihasilkan yaitu nilai L 78,42, nilai °hue 91,88, kadar air 7,65%, daya serap air 59,64%, densitas 0,64 g/cm³, kristalinitas 38,3%, Tm 160,24°C, dan penurunan bakteri Staphylococcus aureus sebesar 1 log. Penelitian ini membuktikan bahwa biodegradable foam dari tapioka dan ampok jagung dengan pengisi ZnONP dan pemlastis EG memiliki potensi untuk digunakan sebagai kemasan antimikroba pada produk pangan. Biodegradable foam packaging were made from tapioca, corn hominy, zinc oxide nanoparticles (ZnONP), and plasticizer ethylene glicol (EG). Packaging materials were processed by thermopressing. The aim of research was to find out the effects of ZnONP and EG addition. The research design was a completely randomized factorial followed by Duncan test at α=5%. Two factors used in the research, namely ZnONP concentrationsat 0, 1, and 2 % and EG concentrations at 0 and 5%. The effects of ZnONP incorporation on physical properties and antimicrobial activity of the trays were evaluated by analysis on their color parameters, moisture content, water absorption, density, crystallinity, morphological structure, thermal and antimicrobial activity. The best treatment was Z2P0 with 2% ZnONP and 0% EG, characteristics of biodegradable was L value 78.42, °hue value 91.88, moisture content 7.65%, water absorption 59.65%, density 0.64g/cm³, crystallinity 38.3%, Tm 160.24°C, and reduced 1 log of Staphylococcus aureus colonies. The research proved that the obtained biodegradable foam made from tapioca, corn hominy, ZnONP, and plasticizer EG has a potential to be used as antimicrobial packaging for food products.

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Enhancement of the antibacterial activity of natural rubber latex foam by the incorporation of zinc oxide nanoparticles

Cited by 42 publications

References 32 publications

Preparation of silver nanoparticles supported mesoporous silica microspheres with perpendicularly aligned mesopore channels and their antibacterial activities

Preparation of silver nanoparticles supported mesoporous silica microspheres with perpendicularly aligned mesopore channels and their antibacterial activities

Influence of fillers dispersion on friction and wear performance of solution styrene butadiene rubber composites

Pengaruh Nanopartikel Zinc Oxide Dan Etilen Glikol Terhadap Sifat Fisik Dan Antimikroba Biodegradable Foam

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