Co-doped ZnO nanowires: Synthesis, photocatalytic performance, and cytotoxic activity against human brain glioblastoma cells

Hamidian, Khadijeh; Sarani, Mina; Najafidoust, Ahmad; kadkhodaei, Jamshid; Sardashti-Birjandi, Arezoo

doi:10.1016/j.rechem.2022.100734

Cited by 11 publications

(16 citation statements)

References 38 publications

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“…36‐1451 pointed out the achievement of ZnO in the wurtzite phase. Satisfyingly, the lack of detecting any extra peaks denoted the samples purity without requiring any adjustments to the construction of crystallographic system [3] . According to the results of applying Scherrer's equation [16] for obtaining the crystallite size of synthesized NRs, the gathered findings reported the values of 14.80, 35.52, 44.39, and 49.93 nm for the cases of ZnO−NP and 1, 3 and 5 % Mn−ZnO−NRs, respectively (Table 1).…”

Section: Resultsmentioning

confidence: 99%

“…The exhibition of a red shift in absorption to the visible region by the spectra, caused by the incorporated Mn, was in agreement with the analytical results of FESEM and EDS. This phenomenon may be attributable to the generation of inter band states among the valence and conduction bands of ZnO succeeding to the doping process [3] . The literature does not hold quantum confinement effect as the only factor and mentions the capability of doping in modifying the local lattice symmetry and introducing defect centers into the lattice in order to alter the band construction and lead to fundamental adjustments in their features [32] .…”

Section: Resultsmentioning

confidence: 99%

“…This phenomenon may be attributable to the generation of inter band states among the valence and conduction bands of ZnO succeeding to the doping process. [3] The literature does not hold quantum confinement effect as the only factor and mentions the capability of doping in modifying the local lattice symmetry and introducing defect centers into the lattice in order to alter the band construction and lead to fundamental adjustments in their features. [32] As it is known by the common knowledge, extending the applied volume of doping creates the populated state of electrons throughout the ChemistrySelect conduction band, which consequently thoroughly pushes the Fermi level into the conduction band as a higher energy level.…”

Section: Uv-vis Findingsmentioning

confidence: 99%

“…For instance, the modification of its band gap turned this product into practical UV detectors and emitters. [3][4][5][6] Furthermore, the results of doped-Mn into the matrix of bulk ZnO matrix facilitated the alteration of its qualities, such as converting the band gap of host material from 3.3 eV into 3.7 eV. [7] This procedure caused changes in the emission characteristics through the inducement of an efficient channel by exerting the dopant Mn d levels to recombine the electron and hole.…”

Section: Introductionmentioning

confidence: 99%

“…A number of studies were conducted under the objective of fine‐tuning and adding adoptability to the features of ZnO for varying applications. For instance, the modification of its band gap turned this product into practical UV detectors and emitters [3–6] . Furthermore, the results of doped‐Mn into the matrix of bulk ZnO matrix facilitated the alteration of its qualities, such as converting the band gap of host material from 3.3 eV into 3.7 eV [7] .…”

Section: Introductionmentioning

confidence: 99%

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Cytotoxic Performance of Synthesized Mn‐Doped ZnO Nanorods in MCF‐7 Cells

et al. 2023

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This report presents the outcomes of exerting extracted Salvadora persica for synthesizing ZnO nanoparticles (ZnO−NP) and Mn‐doped ZnO nanorods (Mn−ZnO−NRs) through a viable and economical “green” route. The products characteristics were configured by the means of X‐ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy‐dispersive X‐ray (EDX) spectroscopy, UV‐visible spectroscopy (UV‐Vis) and Raman assessing technics. As the constructional evaluations approved the progress of well crystalline nano, the EDX analyses approved the doping of Mn, which interestingly succeeded in significantly altering the spherical framework of ZnO into a rod‐looking structure. The following steps involved the employment of MTT trial to assay the cytotoxic impacts of our sample towards breast (MCF‐7: Michigan Cancer Foundation‐7) cancer cell line, resulting in confirming the superior outcomes of Mn−ZnO−NRs than the solitary case of ZnO. The boosted functionality of the doped product may be attributable to the appearance of Mn into the lattice of ZnO. In addition, the evolved morphology of ZnO, obtained through the doping process, could have caused substantial developments in the cytotoxic operation of doped sample as well.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Uv-vis Findingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cytotoxic Performance of Synthesized Mn‐Doped ZnO Nanorods in MCF‐7 Cells

et al. 2023

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Designed fluorescence “on–off–on” probe based on cobalt, zinc, and nitrogen co‐doped graphene quantum dots: A case of quinalphos sensing

Mahajan,

Patil

2024

Luminescence

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In this study, we developed a new fluorescence “on–off–on” sensor utilizing water‐soluble cobalt/zinc–nitrogen co‐doped graphene quantum dots (Co/Zn‐N‐GQDs) to recognize quinalphos pesticide in vegetable and fruit samples. Primarily, the synthesis method employed a one‐pot hydrothermal approach, using betel leaves as a natural precursor and cobalt (“Co”), zinc (“Zn”), and urea (“N”) as dopant sources. The Co/Zn‐N‐GQDs probes underwent comprehensive analytical characterization. The Co/Zn‐N‐GQDs were synthesized with a remarkable luminescence yield of 31.49%, exhibiting excitation at 320 nm and emission peak at 393 nm. Interestingly, the luminescence of Co/Zn‐N‐GQDs was selectively “Turned Off” by Cu2+ via a static quenching setup. Remarkably, quenched fluorescence was surprisingly reactivated upon adding quinalphos to the quench setup, indicating a direct correlation between luminescence reactivation and quinalphos concentration. Briefly, this phenomenon is ascribed to the functional groups in quinalphos, such as quinoxalinyl and phosphorothioate, which chelate with Cu2+ ions, disrupting the nonfluorescent Cu2+‐Co/Zn‐N‐GQDs complex. The design sensor demonstrated a limit of detection (LOD) of 0.11 μM and a broad linear span of 0.5 to 200 μM. In conclusion, Cu2+‐Co/Zn‐N‐GQDs sensor showed immediate applicability, stability, and reproducibility, making it highly effective for quinalphos sensing in various samples.

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An Assay on the Antibactericidal Functionality of Synthesized Mg‐Doped ZnO Nanoparticles on the Dental Microbes

Alhomaidi,

Saleh,

Zomot

et al. 2024

Microscopy Res & Technique

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We succeeded in producing pure and magnesium‐doped zinc oxide nanoparticles (Mg‐Zn NPs) by making use of a Prosopis farcta leaf extract and subsequently distinguished the quality of our NPs with the use of field energy scanning electron microscopy (FESEM), energy‐dispersive X‐ray (EDX), powder X‐ray diffraction (PXRD), and UV–vis. In correlation to our observations, the particulates were spherically produced at a size of 20 nm with the ability to cause antimicrobial impacts on Streptococcus mutans bacteria and Candida albicans fungi. Inhibition zones of 18 ± 0.3 and 24 ± 0.3 mm were obtained for 5% Mg‐Zn NPs against bacteria and fungi, respectively. Based on these results, our work suggests a practicable proposition for our synthesized product to be considered as a worthy alternative for dental and oral utilizations.

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Co-doped ZnO nanowires: Synthesis, photocatalytic performance, and cytotoxic activity against human brain glioblastoma cells

Cited by 11 publications

References 38 publications

Cytotoxic Performance of Synthesized Mn‐Doped ZnO Nanorods in MCF‐7 Cells

Cytotoxic Performance of Synthesized Mn‐Doped ZnO Nanorods in MCF‐7 Cells

Designed fluorescence “on–off–on” probe based on cobalt, zinc, and nitrogen co‐doped graphene quantum dots: A case of quinalphos sensing

An Assay on the Antibactericidal Functionality of Synthesized Mg‐Doped ZnO Nanoparticles on the Dental Microbes

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