Combustion synthesis, characterization and antibacterial properties of pristine ZnO and Ga doped ZnO nanoparticles

Sathish, P.; Dineshbabu, N.; Ravichandran, K.; Arun, T.; Karuppasamy, P.; Senthilpandian, M.; Ramasamy, Parthiban

doi:10.1016/j.ceramint.2021.06.224

Cited by 25 publications

(4 citation statements)

References 49 publications

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“…It has caused the fact that the research of ZnONPs focuses on environmental, biological, cosmetic [ 198 ], and renewable energy applications [ 199 ], such as catalysts [ 200 ], biosensors, and even microbial enzyme inhibition, among many other applications. Its application in the medicine and pharmaceutical industry is not behind because, recently, its use as anti-inflammatories, for drug administration, cancer therapy, and as antimicrobial agents [ 201 ] on their own or as a potentiator for antibiotics [ 202 ] has been studied.…”

Section: Nanotechnology Applied To Antimicrobial Resistancementioning

confidence: 99%

Antimicrobial Resistance and Inorganic Nanoparticles

Balderrama-González

Piñón-Castillo

Ramírez-Valdespino

et al. 2021

IJMS

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Antibiotics are being less effective, which leads to high mortality in patients with infections and a high cost for the recovery of health, and the projections that are had for the future are not very encouraging which has led to consider antimicrobial resistance as a global health problem and to be the object of study by researchers. Although resistance to antibiotics occurs naturally, its appearance and spread have been increasing rapidly due to the inappropriate use of antibiotics in recent decades. A bacterium becomes resistant due to the transfer of genes encoding antibiotic resistance. Bacteria constantly mutate; therefore, their defense mechanisms mutate, as well. Nanotechnology plays a key role in antimicrobial resistance due to materials modified at the nanometer scale, allowing large numbers of molecules to assemble to have a dynamic interface. These nanomaterials act as carriers, and their design is mainly focused on introducing the temporal and spatial release of the payload of antibiotics. In addition, they generate new antimicrobial modalities for the bacteria, which are not capable of protecting themselves. So, nanoparticles are an adjunct mechanism to improve drug potency by reducing overall antibiotic exposure. These nanostructures can overcome cell barriers and deliver antibiotics to the cytoplasm to inhibit bacteria. This work aims to give a general vision between the antibiotics, the nanoparticles used as carriers, bacteria resistance, and the possible mechanisms that occur between them.

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Section: Nanotechnology Applied To Antimicrobial Resistancementioning

confidence: 99%

Antimicrobial Resistance and Inorganic Nanoparticles

Balderrama-González

Piñón-Castillo

Ramírez-Valdespino

et al. 2021

IJMS

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“…Nanopesticides that penetrate the organisms of insects leading to mortality have attracted much attention throughout the current decade [ 20 , 21 ]. Nanometal oxides can be developed by using various chemical and physical techniques such as hydrothermal microwave irradiation, combustion synthesis, magnetron sputtering, sol–gel, and electrochemical methods [ 22 , 23 ]. The current study was undertaken to synthesize and characterize ZnCrO NPs by chemical co-precipitation reaction and to study its impact on the fat body of S. gregaria fifth instar nymphs.…”

Section: Introductionmentioning

confidence: 99%

Ultrastructural changes in the fat body of desert locust, Schistocerca gregaria (Orthoptera: Acrididae) treated with zinc chromium oxide nanostructures via chemical co-precipitation approach

2023

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The present work aims to investigate the ultrastructural changes in the fat body of fifth instar nymphs Schistocerca gregaria (Orthoptera: Acrididae) treated with zinc chromium oxide (ZnCrO). The nanoparticles (NPs) were prepared by co-precipitation route and characterized using X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The ZnCrO NPs exhibited polycrystalline hexagonal structure, composed of spherical–hexagonal shapes with an average size ~ 25 nm. Besides, the UV–Vis spectrophotometer (Jasco-V-570) was utilized for optical measurements. The energy gap $$\left( {{\text{E}}_{{\text{g}}} } \right)$$ E g was estimated from the transmittance (T%) and reflectance (R%) spectra through the range of 3.307–3.840 eV. In biological sections, S. gregaria 5th instar nymphs, TEM images demonstrated that the fat body was strongly impacted with the concentration 2 mg NPs result in great agglomeration of chromatin in the nucleus as well as haemoglobin cells (HGCs) pierced with malformed trachea (Tr) at 5th and 7th days post treatment. The obtained results indicated a positive action of the prepared nanomaterial on Schistocerca gregaria fat body organelles. Graphical Abstract

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“…Nanopesticides that penetrate the organisms of insects leading to mortality have attracted much attention throughout the current decade [17,18]. In the current work, Cr doped ZnO NPs have been developed by using various chemical and physical techniques, including hydrothermal microwave irradiation, combustion synthesis, magnetron sputtering, sol-gel, and electrochemical methods [19,20]. Here, Zn 1 − x Cr x O was synthesized by a facile chemical precipitation approach and then con rmed using different techniques for insecticidal control.…”

Section: Introductionmentioning

confidence: 99%

An ultrastructural change in the fat body of Desert Locust Schistocerca gregaria (Orthoptera: Acrididae) treated with zinc chromium oxide nanostructures via facile chemical coprecipitation

Hashem

Elgazzar

Mostafa

2022

Preprint

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Background The present work aims to investigate the ultrastructural changes in the fat body of fifth nymphal instars Schistocerca gregaria (Orthoptera: Acrididae) treated with zinc chromium oxide (ZnCrO). Methodology: The nanoparticles (NPs) were prepared by a coprecipitation approach. X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were employed to investigate the structural, composition, and morphological properties. Results and discussion The ZnCrO NPs exhibited a hexagonal polycrystalline structure. SEM and TEM micrographs described the surface nature of the nanoparticles composed of spherical and hexagonal shapes with an average size of ~25 nm. The energy gap (Eg)of the Cr-doped ZnO thin film was estimated from the transmittance and reflectance spectra to be 3.307 and 3.840 eV. In biological sections, TEM images demonstrated that the fat body strongly impacted with the concentrations 2mg of the treated nanoparticles caused great agglomerated chromatin in the nucleus as well as haemoglobin cells (HGCs) pierced with malformed trachea. In addition, the same effect was observed at 1mg on the 7th day post treatment Conclusion The results indicate a positive impact of ZnCrO on Schistocerca gregaria leads to malformed of fat body organelles.

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Combustion synthesis, characterization and antibacterial properties of pristine ZnO and Ga doped ZnO nanoparticles

Cited by 25 publications

References 49 publications

Antimicrobial Resistance and Inorganic Nanoparticles

Antimicrobial Resistance and Inorganic Nanoparticles

Ultrastructural changes in the fat body of desert locust, Schistocerca gregaria (Orthoptera: Acrididae) treated with zinc chromium oxide nanostructures via chemical co-precipitation approach

An ultrastructural change in the fat body of Desert Locust Schistocerca gregaria (Orthoptera: Acrididae) treated with zinc chromium oxide nanostructures via facile chemical coprecipitation

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