Biocidal activity of Ba2+-doped CeO2 NPs against Streptococcus mutans and Staphylococcus aureus bacterial strains

Natarajan, S.; Karthikeyan, Chandrasekaran; Kumar, Venugopal Senthil; Varaprasad, Kokkarachedu; Hameed, Abdulrahman Syed ahamed Haja; Vanajothi, Ramar; Sadiku, Rotimi

doi:10.1039/d1ra05948c

Cited by 19 publications

(15 citation statements)

References 53 publications

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“…A substantiated comparison of the inhibition zone diameter with respect to S. aureus and E. coli bacteria monitored in various doped (single or double) ZnO materials is shown in Table 3. From the table, it can be seen that Cd, Ba co‐doped ZnO nanorods prepared show enhanced antibacterial activity as observed in the current study when compared to Cd, Ba co‐doped CuO, 28 Fe, Co co‐doped ZnO, 26 Mn doped ZnO, 58 Ag doped ZnO, 58 Cu doped ZnO, 17 Sn doped ZnO, 17 Ti doped ZnO, 24 Cd doped CuO, 28 Ti doped MgO, 60 and Ba doped CeO 2 51 nanoparticles. The impressive antibacterial activity of Cd, Ba co‐doped ZnO nanoparticles is because of the low crystallite size (42.35 nm), decrease in lattice strain, and increase in dislocation density, as evidenced from the XRD data.…”

Section: Resultssupporting

confidence: 69%

“…In contrast, the absorbance of UVB at 280 and 320 nm for Cd, Ba co‐doped ZnO is found to be 78% and 88%, respectively, whereas the absorbance of UVA at 360 and 400 nm is found to be 97% and 16%, respectively. Moreover, it is unambiguously clear that Cd, Ba co‐doped ZnO exhibits tremendous UV absorption in the wavelength regime 280–360 nm, which indicates the simultaneous UVA and UVB blocking capability, thereby outperforming other UV‐shielding materials such as Fe, Co co‐doped ZnO, 26 Ag doped ZnO, 1 Mn doped ZnO, 4 Na doped ZnO, 6 polymer film N doped ZnO, 15 Sn doped ZnO quantum dots, 16 PVA/CAN doped ZnO, 49 Al doped ZnO/Epoxy nanocomposites, 50 Cd doped CuO, 28 Ba doped CeO 2 , 51 and Ba doped TiO 2 nanoparticles 52 as indicated in Table 2. However, at 280 nm, the blocking percentage of Cd, Ba co‐doped ZnO nanoparticles is lower than Fe, Co co‐doped ZnO and Mn doped ZnO nanoparticles.…”

Section: Resultsmentioning

confidence: 99%

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UV‐blocking performance and antibacterial activity of Cd, Ba co‐doped ZnO nanomaterials prepared by a facile wet chemical method

Samuel

Shaji

Dhas³

et al. 2023

Surface & Interface Analysis

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The utilization of highly efficient ultraviolet (UV)-attenuating materials has inevitably signaled an ever-increasing demand to mitigate the impending pessimistic impact of UV rays that consistently depletes the ozone atmosphere. In this context, a highly efficient Cd, Ba co-doped ZnO nanomaterial has been prepared using a facile wet chemical approach. X-ray diffractometer analysis indicates the evolution of wurtzite structure of ZnO with a slight peak shift towards the higher angle upon co-doping which ascertains the impacted lattice contraction. N 2 adsorption/desorption isotherms of the material supplement magnificently a typical type-IV behavior displaying an H1 type hysteresis loop at high pressures whereby authorizing the open meso-porous characteristics. The resulting Cd, Ba co-doped ZnO nanorods disclose integrated performances of widespread polychromatic UV-visible luminescent emission, wide band gap, and enhanced UV absorbance. In particular, Cd, Ba co-doped ZnO nanorods impart a positive UV-blocking execution of 97% for UVA at 360 nm and 88% for UVB at 320 nm, which is found to be higher than most of the reported ZnO-related materials. Besides these intriguing aforementioned properties, co-doping is also appropriate for imparting better bacterial inhibition against the two tested strains (Escherichia coli and Staphylococcus aureus). Altogether, these results indicate that the co-doped ZnO nanorods developed in the current investigation could potentially serve as a propitious alternative UV-blocking material, especially for biomedical applications.

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Section: Resultssupporting

confidence: 69%

Section: Resultsmentioning

confidence: 99%

UV‐blocking performance and antibacterial activity of Cd, Ba co‐doped ZnO nanomaterials prepared by a facile wet chemical method

Samuel

Shaji

Dhas³

et al. 2023

Surface & Interface Analysis

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“…Among a heterogeneous variety of NPs, cerium oxide (CeO 2 ) is one of the widely utilized NPs due to its exclusive characteristic features of biocompatibility, stability, eco-friendliness, and eccentric surface chemistry [18,19]. e lattice site of the CeO 2 NPs or nanoceria is capable of producing more oxygen vacancies [20,21] and this redox property can be significantly exploited in the treatment of various ailments related to oxidative stress. It is substantially employed in the production of sensors, catalysts, cells, drug-delivery agents, therapeutical agents, and antiparasitic creams [15,18,22].…”

Section: Introductionmentioning

confidence: 99%

[Retracted] Structural, Optical, Antibacterial, and Anticancer Properties of Cerium Oxide Nanoparticles Prepared by Green Synthesis Using Morinda citrifolia Leaves Extract

Elderdery

Alzahrani

Alabdulsalam

et al. 2022

Bioinorganic Chemistry and Applications

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Currently, new advancements in the area of nanotechnology opened up new prospects in the field of medicine that could provide us with a solution for numerous medical complications. Although a several varieties of nanoparticles is being explored to be used as nanomedicines, cerium oxide nanoparticles (CeO2 NPs) are the most attractive due to their biocompatibility and their switchable oxidation state (+3 and +4) or in other words the ability to act as prooxidant and antioxidant depending on the pH condition. Green synthesis of nanoparticles is preferred to make it more economical, eco-friendly, and less toxic. The aim of our study here is to formulate the CeO2 NPs (CeO2 NPs) using Morinda citrifolia (Noni) leaf extract and study its optical, structural, antibacterial, and anticancer abilities. Their optical and structural characterization was accomplished by employing X-ray diffractography (XRD), TEM, EDAX, FTIR, UV-vis, and photoluminescence assays. Our CeO2 NPs expressed strong antibacterial effects against Gram-positive S. aureus and S. pneumonia in addition to Gram-negative E. coli and K. pneumonia when compared with amoxicillin. The anticancer properties of the green synthesized CeO2 NPs against human acute lymphoblastic leukemia (ALL) MOLT-4 cells were further explored by the meticulous study of their ability to diminish cancer cell viability (cytotoxicity), accelerate apoptosis, escalate intracellular reactive oxygen species (ROS) accumulation, decline the mitochondria membrane potential (MMP) level, modify the cell adhesion, and shoot up the activation of proapoptotic markers, caspase−3, −8, and −9, in the tumor cells. Altogether, the outcomes demonstrated that our green synthesized CeO2 NPs are an excellent candidate for alternative cancer therapy.

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“…The antibacterial results showed that Ba-doped ceria had the highest biocidal activity, and this was attributed to it comprising the smallest particles and exhibiting the highest ROS production rate. 45 Na-doped ceria prepared via a cryochemical route in liquid nitrogen with different molar ratios of Na and Ce was tested as a catalyst for CO 2 hydrogenation. 52 The results revealed that the yield of CO produced varies with the Na/Ce ratio used.…”

Section: Metal Doped Ceriamentioning

confidence: 99%

“…Moreover, particle shapes, such as rods and cubes, tend to exhibit better oxygen storage performance than other polyhedrons, such as octahedrons. This oxygen reservoir property also enables ceria to act as a radical scavenger, thus making it a valuable material in the biomedical field . Compared with materials possessing similar band gaps (ZnO and TiO 2 , for example), ceria has a higher oxygen ion mobility and a longer photogenerated charge carrier lifetime, making it superior for certain optical and related applications , Furthermore, ceria is known to be an active oxygen donor in certain reactions, including three-way catalytic (TWC) reactions to decompose toxic components of automobile exhaust, water–gas shift (WGS) reactions at low temperature, oxygen permeation membrane systems, oxygen sensors, and fuel cells.…”

Section: Properties Of Ceriamentioning

confidence: 99%

Doped Ceria Nanomaterials: Preparation, Properties, and Uses

Abdulwahab,

Khan,

Jennings

2023

ACS Omega

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Doping is a powerful strategy for enhancing the performance of ceria (CeO2) nanomaterials in a range of catalytic, photocatalytic, biomedical, and energy applications. The present review summarizes recent developments in the doping of ceria nanomaterials with metal and non-metal dopants for selected applications. The most important metal dopants are grouped into s, p, d, and f block elements, and the relevant synthetic methods, novel properties, and key applications of metal doped ceria are collated and critically discussed. Non-metal dopants are similarly examined and compared with metal dopants using the same performance criteria. The review reveals that non-metal (N, S, P, F, and Cl) doped ceria has mainly been synthesized by calcination and hydrothermal methods, and it has found applications mostly in photocatalysis or as a cathode material for LiS batteries. In contrast, metal doped ceria nanomaterials have been prepared by a wider range of synthetic routes and evaluated for a larger number of applications, including as catalysts or photocatalysts, as antibacterial agents, and in devices such as fuel cells, gas sensors, and colorimetric detectors. Dual/co-doped ceria containing both metals and non-metals are also reviewed, and it is found that co-doping often leads to improved properties compared with single-element doping. The review concludes with a future outlook that identifies unaddressed issues in the synthesis and applications of doped ceria nanomaterials.

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Biocidal activity of Ba²⁺-doped CeO₂ NPs against Streptococcus mutans and Staphylococcus aureus bacterial strains

Abstract: The highest antibacterial activity was achieved for Ba-doped CeO2 (BCO) NMs and is suitable for healthcare applications.

Cited by 19 publications

References 53 publications

UV‐blocking performance and antibacterial activity of Cd, Ba co‐doped ZnO nanomaterials prepared by a facile wet chemical method

UV‐blocking performance and antibacterial activity of Cd, Ba co‐doped ZnO nanomaterials prepared by a facile wet chemical method

[Retracted] Structural, Optical, Antibacterial, and Anticancer Properties of Cerium Oxide Nanoparticles Prepared by Green Synthesis Using Morinda citrifolia Leaves Extract

Doped Ceria Nanomaterials: Preparation, Properties, and Uses

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