Effect of Mg doping on ZnO fabricated using aqueous leaf extract of Ziziphus mauritiana Lam. for antioxidant and antibacterial studies

Rahman, Ashmalina; Harunsani, Mohammad Hilni; Tan, Ai Ling; Ahmad, Norhayati; Hojamberdiev, Mirabbos; Khan, Mohammad Mansoob

doi:10.1007/s00449-020-02496-1

Cited by 40 publications

(20 citation statements)

References 62 publications

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“…The two theta values corresponded to the JCPDS card number 79-2205 [34]. Broader peaks and lower intensities of Mg-doped ZnO NPs patterns compared to bare ZnO confirmed the successful doping of Mg on the ZnO crystal lattice [35,36]. The doping was favored because of the small ionic radius of Mg 2+ compared to Zn 2+ [36].…”

Section: Xrd Analysis Of Bare and Mg-doped Zno Npsmentioning

confidence: 80%

“…Broader peaks and lower intensities of Mg-doped ZnO NPs patterns compared to bare ZnO confirmed the successful doping of Mg on the ZnO crystal lattice [35,36]. The doping was favored because of the small ionic radius of Mg 2+ compared to Zn 2+ [36]. Using the XRD patterns, the Mg-doped ZnO NP's crystal size was determined using the Scherer equation.…”

Section: Xrd Analysis Of Bare and Mg-doped Zno Npsmentioning

confidence: 88%

“…The C=O symmetric stretching vibration was detected at 1459 and 1438 cm −1 for bare and Mg-doped samples, respectively. Weak stretching frequencies of Zn-O were seen at 886 and 874 cm −1 for bare and doped ZnO NPs samples [34][35][36][37] (Figure 1b).…”

Section: Ftir Analysis Of Bare and Mg-doped Zno Npsmentioning

confidence: 99%

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Dental Composites with Magnesium Doped Zinc Oxide Nanoparticles Prevent Secondary Caries in the Alloxan-Induced Diabetic Model

Tanweer

Rana

Saleem

et al. 2022

IJMS

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Antibacterial restorative materials against caries-causing bacteria are highly preferred among high-risk patients, such as the elderly, and patients with metabolic diseases such as diabetes. This study aimed to enhance the antibacterial potential of resin composite with Magnesium-doped Zinc oxide (Mg-doped ZnO) nanoparticles (NPs) and to look for their effectiveness in the alloxan-induced diabetic model. Hexagonal Mg-doped ZnO NPs (22.3 nm diameter) were synthesized by co-precipitation method and characterized through ultraviolet-visible (UV-Vis), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) analysis. The Mg-doped ZnO NPs (1, 2.5 and 5% w/w) were then evaluated for antibacterial activity using a closed system in vitro biofilm model. Significant enhancement in the antibacterial properties was observed in composites with 1% Mg-doped ZnO compared to composites with bare ZnO reinforced NPs (Streptococcus mutans, p = 0.0005; Enterococcus faecalis, p = 0.0074, Saliva microcosm, p < 0.0001; Diabetic Saliva microcosm, p < 0.0001). At 1–2.5% Mg-doped ZnO NPs concentration, compressive strength and biocompatibility of composites were not affected. The pH buffering effect was also achieved at these concentrations, hence not allowing optimal conditions for the anaerobic bacteria to grow. Furthermore, composites with Mg-doped ZnO prevented secondary caries formation in the secondary caries model of alloxan-induced diabetes. Therefore, Mg-doped ZnO NPs are highly recommended as an antibacterial agent for resin composites to avoid biofilm and subsequent secondary caries formation in high-risk patients.

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Section: Xrd Analysis Of Bare and Mg-doped Zno Npsmentioning

confidence: 80%

Section: Xrd Analysis Of Bare and Mg-doped Zno Npsmentioning

confidence: 88%

See 1 more Smart Citation

Dental Composites with Magnesium Doped Zinc Oxide Nanoparticles Prevent Secondary Caries in the Alloxan-Induced Diabetic Model

Tanweer

Rana

Saleem

et al. 2022

IJMS

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“…There is no doubt that low ohmic(grain) and grain boundary resistance values contribute immensely to enhancing the ionic carrier. In addition, the electrode resistance has also exhibited declining behavior in all EIS spectra, as shown in Figure 3A-C, manifesting better catalytic activity of electrodes [23,24] .…”

Section: Eis and Xps Analysismentioning

confidence: 93%

ZnO/MgZnO heterostructure membrane with type II band alignment for ceramic fuel cells

Shah¹,

Lu²,

Mushtaq³

et al. 2022

Energy Mater

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Semiconductor membrane fuel cells are a new promising R&D for solid oxide fuel cells and proton ceramic fuel cells. There is a challenge of the electronic short circuit issue by using semiconductor to replace conventional electrolyte membrane. In this work, type II band alignment of the semiconductor heterostructure based on Mg-doped ZnO and ZnO can, on one hand, block electrons passing through the junction, and on the other hand, trigger the ionic properties of membrane to boost the fuel cell performance. The Mg doping into ZnO creates more oxygen vacancies at the surface of ZnO, leading to enhanced ionic transport, and meaningful fuel cell performance of 673 mW/cm2; while the Mg-doped ZnO/ZnO heterostructure fuel cell has delivered 997 mW/cm2 and OCV 1.04 V at 520 oC. It is worth highlighting that the constructed heterostructure interface, especially the band bending and constituted build-in electric field, plays a pivotal role in enhancing the ionic transport and suppressing the electron passing through the internal device. First principal calculations using density functional theory confirmed the doping of Mg and the formation of heterostructure with ZnO to help for enhancing charge carriers and separations. This work suggests that the constructed type II band alignment or the semiconductor heterostructure is useful for developing advanced fuel cells.

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“…Some of TM will induce the magnetic and piezoelectric properties of the ZnO such as by Fe, Cr, or Mn due to the spin coupling and the asymmetric wurtzite structure formation, respectively [ 66 ]. The use of Fe, Cu, Ni, Mg, and Ta is effective to increase the bacterial growth inhibition and antibacterial properties due to the large number of reactive oxygen species (ROS), cytotoxic zinc, and copper ions generation [ 22 , 67 , 68 ]. The antibacterial mechanisms are discussed in the next section.…”

Section: Zno As a Photocatalyst Materials For Bacterial Inactivationmentioning

confidence: 99%

ZnO-based antimicrobial coatings for biomedical applications

Puspasari

Ridhova

Hermawan³

et al. 2022

Bioprocess Biosyst Eng

Self Cite

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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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Effect of Mg doping on ZnO fabricated using aqueous leaf extract of Ziziphus mauritiana Lam. for antioxidant and antibacterial studies

Cited by 40 publications

References 62 publications

Dental Composites with Magnesium Doped Zinc Oxide Nanoparticles Prevent Secondary Caries in the Alloxan-Induced Diabetic Model

Dental Composites with Magnesium Doped Zinc Oxide Nanoparticles Prevent Secondary Caries in the Alloxan-Induced Diabetic Model

ZnO/MgZnO heterostructure membrane with type II band alignment for ceramic fuel cells

ZnO-based antimicrobial coatings for biomedical applications

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