Antibacterial and antibiofilm properties of ZnO nanoparticles synthesis using gum arabic as a potential new generation antibacterial agent

Pauzi, Norlin; Zain, Norashikin Mat; Kutty, Rajaletchumy Veloo; Ramli, Hafizah

doi:10.1016/j.matpr.2020.06.359

Cited by 16 publications

(8 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The MIC evaluation used the same types of standard bacterial strains as this study, obtaining a value of 500 µg/mL for both strains. Many studies show that Gram-negative bacteria and yeasts are more resistant to the action of ZnO nanoparticles [ 55 , 56 , 57 , 58 ].…”

Section: Resultsmentioning

confidence: 99%

Zinc Oxide Nanoparticles for Water Purification

et al. 2021

View full text Add to dashboard Cite

In this study, zinc oxide nanoparticles were synthesized through a simple co-precipitation method starting from zinc acetate dihydrate and sodium hydroxide as reactants. The as-obtained ZnO nanoparticles were morphologically and structurally characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), photocatalytic activity, and by determining the antimicrobial activity against Gram-negative and Gram-positive bacteria. The XRD pattern of the zinc oxide nanoparticles showed the wurtzite hexagonal structure, and its purity highlighted that the crystallinity correlated with the presence of a single product, zinc oxide. The ZnO nanoparticles have an average crystallite size of 19 ± 11 nm, which is in accordance with the microscopic data. ZnO nanoparticles were tested against methyl orange, used as a model pollutant, and it was found that they exhibit strong photocatalytic activity against this dye. The antibacterial activity of ZnO nanoparticles was tested against Gram-negative and Gram-positive strains (Escherichia coli, Staphylococcus aureus, and Candida albicans). The strongest activity was found against Gram-positive bacteria (S. aureus).

show abstract

Section: Resultsmentioning

confidence: 99%

Zinc Oxide Nanoparticles for Water Purification

et al. 2021

View full text Add to dashboard Cite

show abstract

“…21 The FTIR spectra of ZnO nanoparticles shown in Figure 1c constitute peaks at 478, 600, and 770 cm −1 (Zn−O bond stretching) and 1085 and 3385 cm −1 surfaceadsorbed H 2 O molecules (−OH bending and stretching vibrations). 17 The FTIR spectra of the ZnO/CuO@Alg BNC in Figure 1d show all the characteristic peaks from CuO, ZnO, and alginate with a shifted vibrational frequency, for example, 508 cm −1 (Cu−O stretching), 616 cm −1 (Zn−O stretching), 828−1144 (C−O−C alginate pyranoid ring), 1505 cm −1 , 1497 cm −1 (COO − symmetric and asymmetric stretching), 2923 cm −1 (C−H aliphatic stretching of alginate), and 3238 cm −1 (−OH stretching). The shift in the carboxylic acid vibrational frequency suggests that the reduction as well as stabilization of Zn 2+ and Cu 2+ into oxides was done through donation of electrons (lone pairs) from oxygen form a Cu−O− Zn-type lattice.…”

Section: Resultsmentioning

confidence: 99%

“…The best role of these nanoparticles was found in the field of catalysis because of their large surface area, chemical stability, low cost, less resistance to diffusion, faster rate of equilibrium, and capacity to detect hazardous pollutants . In the literature, several metal oxide-based nanoparticles have been utilized for the efficient oxidative degradation of PNP, such as ZnO, SnO 2 , NiO, CeO 2 , CuO, and WO 3 . In the present study, we have tried to enhance the photocatalytic activity of CuO nanoparticles through fusion of the ZnO nanostructure using the chemical coprecipitation method.…”

Section: Introductionmentioning

confidence: 99%

Ecofriendly Green Synthesis of the ZnO-Doped CuO@Alg Bionanocomposite for Efficient Oxidative Degradation of p-Nitrophenol

et al. 2020

View full text Add to dashboard Cite

In the present study, ecofriendly green synthesized ZnO/CuO nanorods were prepared by using the stabilizing and reducing characteristics of the alginate biopolymer. The bionanocomposite (BNC) material was characterized by various sophisticated analytical tools such as Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy− energy dispersive X-ray spectroscopy, transmission electron microscopy, UV−visible spectroscopy, differential scanning calorimetry, and the Brunauer−Emmett−Teller (BET) method. The composition of ZnO/CuO@Alg BNC was found to be C (16.16 ± 0.42%), O (42.26 ± 1.87%), Cu (31.96 ± 1.05%), and Zn (9.62 ± 0.48%), which also supports the approximate 3:1 ratio of Cu 2+ and Zn 2+ taken as the precursor. The nanocrystalline spinel ferrite was found to have a BET specific surface area of 19.24 m 2 g −1 with a total pore volume of 0.075 cm 3 g −1 and 1.45 eV as the band gap energy (E g ). Further, the material was applied for the photodegradation of p-nitrophenol (PNP) under the advanced oxidative process (AOP) under visible sunlight irradiation. The visible light radiation was used for the degradation of PNP under pH 2 conditions and resulted in 98.38% of the photocatalytic efficiency of the ZnO/CuO@Alg catalyst within 137 min of irradiation time. The photocatalytic reaction was best defined by the pseudo-first-order kinetics which involves the adsorption of the PNP molecule on the surface of the catalyst, thereby demineralizing it in the presence of advanced active • OH radicals. The values of rate constant for the pseudo-first-order model (k 1 ) were calculated as 0.013, 0.016, 0.019, 0.021, and 0.023 min −1 with half-life periods of 53.31, 43.31, 36.47, 33.00, and 30.13 min for 10−50 mg L −1 PNP concentrations. The presence of t-butyl alcohol decreases the photocatalytic efficiency, which suggests that the degradation of PNP was accomplished by the • OH oxidative radical.

show abstract

“…The liquid dilution method was opted to find the MIC of both ZnO NP and OEO following the previously described method [ 38 ]. Briefly, both S. aureus and E. coli were precultured in Broth culture media overnight and culture containing (10 8 CFU/mL cells).…”

Section: Biological Evaluationmentioning

confidence: 99%

Multifunctional bioactive core-shell electrospun membrane capable to terminate inflammatory cycle and promote angiogenesis in diabetic wound

Khan

Huang

Shahriari-Khalaji

et al. 2021

Bioactive Materials

View full text Add to dashboard Cite

Diabetic wound (DW) healing is a major clinical challenge due to multifactorial complications leading to prolonged inflammation. Electrospun nanofibrous (NF) membranes, due to special structural features, are promising biomaterials capable to promote DW healing through the delivery of active agents in a controlled manner. Herein, we report a multifunctional composite NF membrane loaded with ZnO nanoparticles (NP) and oregano essential oil (OEO), employing a new loading strategy, capable to sustainedly co-deliver bioactive agents. Physicochemical characterization revealed the successful fabrication of loaded nanofibers with strong in vitro anti-bacterial and anti-oxidant activities. Furthermore, in vivo wound healing confirmed the potential of bioactive NF membranes in epithelialization and granulation tissue formation. The angiogenesis was greatly prompted by the bioactive NF membranes through expression of vascular endothelial growth factor (VEGF). Moreover, the proposed NF membrane successfully terminated the inflammatory cycle by downregulating the pro-inflammatory cytokines interleukin −6 (IL-6) and matrix metalloproteinases-9 (MMP-9). In vitro and in vivo studies revealed the proposed NF membrane is a promising dressing material for the healing of DW.

show abstract

Antibacterial and antibiofilm properties of ZnO nanoparticles synthesis using gum arabic as a potential new generation antibacterial agent

Cited by 16 publications

References 40 publications

Zinc Oxide Nanoparticles for Water Purification

Zinc Oxide Nanoparticles for Water Purification

Ecofriendly Green Synthesis of the ZnO-Doped CuO@Alg Bionanocomposite for Efficient Oxidative Degradation of p-Nitrophenol

Multifunctional bioactive core-shell electrospun membrane capable to terminate inflammatory cycle and promote angiogenesis in diabetic wound

Contact Info

Product

Resources

About