Antibacterial activity of green synthesized copper oxide nanoparticles against multidrug-resistant bacteria DOI Creative Commons
Toka Khairy, Dina H. Amin, Hanaa M. Salama

и другие.

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Окт. 23, 2024

Abstract Using plant extracts in the green synthesis of nanoparticles has become an environmentally acceptable approach. In our study, copper oxide (CuO NPs) were synthesized using ethanolic Azadirachta indica and Simmondsia chinensis . CuO NP formation was confirmed by change color UV‒visible spectroscopy NPs peaked at a wavelength 344 nm). TEM images semispherical shape NPs, with particle sizes ranging from 30.9 to 10.7 nm. The antibacterial activity these evaluated agar diffusion method against clinical isolates, including methicillin-resistant Staphylococcus aureus (MRSA), Escherichia coli , Pseudomonas aeruginosa Acinetobacter spp., Klebsiella pneumoniae Stenotrophomonas maltophilia minimum inhibitory concentration (MIC) ranged 62.5 125 µg/ml. contrast, antioxidant antibiofilm 31.1 92.2% 125–500 µg/ml 62.2–95%, respectively, –62.5 Our results that had IC50s 383.41 ± 3.4 402.73 1.86 250 µg/mL HBF4 cell line. Molecular docking studies suggested penicillin-binding protein 4 (PBP4) beta-lactamase proteins (OXA-48) strongly bind S. K. NPs. study confirms promising use treating pathogenic bacteria could be possible alternative antibiotics. This supports pharmaceutical healthcare sectors Egypt worldwide.

Язык: Английский

A review of microbes mediated biosynthesis of silver nanoparticles and their enhanced antimicrobial activities DOI Creative Commons
Chhangte Vanlalveni, Vanlalhruaii Ralte, Hlawncheu Zohmingliana

и другие.

Heliyon, Год журнала: 2024, Номер 10(11), С. e32333 - e32333

Опубликована: Июнь 1, 2024

In recent decades, biosynthesis of metal and (or) oxide nanoparticles using microbes is accepted as one the most sustainable, cost-effective, robust, green processes it does not encompass usage largely hazardous chemicals. Accordingly, numerous simple, inexpensive, environmentally friendly approaches for silver (AgNPs) were reported avoiding conventional (chemical) methods. This comprehensive review detailed an advance made in years microbes-mediated AgNPs evaluation their antimicrobial activities covering literature from 2015-till date. It also aimed at elaborating possible effect different phytochemicals, concentrations, extraction temperature, solvent, pH, reaction time, concentration precursor on shape, size, stability synthesized AgNPs. addition, while trying to understand against targeted pathogenic probable mechanism interaction produced with cell wall that led cell's reputed death have been detailed. Lastly, this shape size-dependent enhanced by synergetic known commercially available antibiotic drugs.

Язык: Английский

Процитировано

11

Biosynthesis and characterization of selenium and silver nanoparticles using Trichoderma viride filtrate and their impact on Culex pipiens DOI Creative Commons

Heba Abd-elKhalek,

Ali A. Badawy, Abdulaziz A. Al–Askar

и другие.

Green Processing and Synthesis, Год журнала: 2024, Номер 13(1)

Опубликована: Янв. 1, 2024

Abstract Some of the significant globally prevalent vector-borne illnesses are caused by Culex pipiens . Synthetic pesticides have been widely utilized to eradicate C. , which has led a number health risks for people, insect resistance, and environmental contamination. Alternative strategies therefore vitally needed. In current investigation, Trichoderma viride fungal culture filtrate was used create selenium silver nanoparticles (SeNPs AgNPs, respectively) test them on larvae in their fourth instar stage. The death rate increased significantly when SeNP AgNP concentrations increased, according results. SeNPs AgNPs affected developmental detoxification enzymes at 24 h after being treated with sublethal concentration tested NPs. As result insecticidal effect larvae, considered effective promising larvicidal agents.

Язык: Английский

Процитировано

11

Characterization, antibacterial, and cytotoxic activities of silver nanoparticles using the whole biofilm layer as a macromolecule in biosynthesis DOI Creative Commons

Aghapy Yermans Yakoup,

Azza G. Kamel,

Yasmin Elbermawy

и другие.

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Янв. 3, 2024

Abstract Recently, multi-drug resistant (MDR) bacteria are responsible for a large number of infectious diseases that can be life-threatening. Globally, new approaches targeted to solve this essential issue. This study aims discover novel antibiotic alternatives by using the whole components biofilm layer as macromolecule synthesize silver nanoparticles (AgNPs) promising agent against MDR. In particular, biosynthesized biofilm-AgNPs were characterized UV-Vis spectroscopy, electron microscopes, Energy Dispersive X-ray (EDX), zeta sizer and potential while their effect on bacterial strains normal cell lines was identified. Accordingly, have lavender-colored solution, spherical shape, with size range 20–60 nm. Notably, they inhibitory effects when used various concentrations ranging between 12.5 25 µg/mL. addition, an effective synergistic combined phage ZCSE9 inhibit kill Salmonella enterica concentration 3.1 conclusion, work presents biosynthesis preparation AgNPs antibacterial purposes reduce possible toxicity reducing MICs ZCSE9.

Язык: Английский

Процитировано

10

A comprehensive review on antibacterial analysis of natural extract-based metal and metal oxide nanoparticles DOI

M. Shandhiya,

B. Janarthanan,

S. Sharmila

и другие.

Archives of Microbiology, Год журнала: 2024, Номер 206(1)

Опубликована: Янв. 1, 2024

Язык: Английский

Процитировано

10

Antibacterial activity of green synthesized copper oxide nanoparticles against multidrug-resistant bacteria DOI Creative Commons
Toka Khairy, Dina H. Amin, Hanaa M. Salama

и другие.

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Окт. 23, 2024

Abstract Using plant extracts in the green synthesis of nanoparticles has become an environmentally acceptable approach. In our study, copper oxide (CuO NPs) were synthesized using ethanolic Azadirachta indica and Simmondsia chinensis . CuO NP formation was confirmed by change color UV‒visible spectroscopy NPs peaked at a wavelength 344 nm). TEM images semispherical shape NPs, with particle sizes ranging from 30.9 to 10.7 nm. The antibacterial activity these evaluated agar diffusion method against clinical isolates, including methicillin-resistant Staphylococcus aureus (MRSA), Escherichia coli , Pseudomonas aeruginosa Acinetobacter spp., Klebsiella pneumoniae Stenotrophomonas maltophilia minimum inhibitory concentration (MIC) ranged 62.5 125 µg/ml. contrast, antioxidant antibiofilm 31.1 92.2% 125–500 µg/ml 62.2–95%, respectively, –62.5 Our results that had IC50s 383.41 ± 3.4 402.73 1.86 250 µg/mL HBF4 cell line. Molecular docking studies suggested penicillin-binding protein 4 (PBP4) beta-lactamase proteins (OXA-48) strongly bind S. K. NPs. study confirms promising use treating pathogenic bacteria could be possible alternative antibiotics. This supports pharmaceutical healthcare sectors Egypt worldwide.

Язык: Английский

Процитировано

10