Phytochemical Analysis of Silver Nanoparticles of Psidium guajava Leaf Extract and Evaluation for Its Antibacterial Property DOI Creative Commons

Sanjana Raghupathy,

Azhagu Madhavan Sivalingam,

Neha Brahma

et al.

Journal of Pharmacy And Bioallied Sciences, Journal Year: 2024, Volume and Issue: 16(Suppl 2), P. S1256 - S1262

Published: April 1, 2024

A BSTRACT Nonessential heavy metals are toxic to human health. In this study, mercury, a hazardous metal, was detected by colorimetric analysis using Murraya koenigii . The eco-friendliness of method also emphasized. UV spectrum is broad peak observed at 200–250 nm in P. guajava leaf extracts. green synthesized exhibited an absorption band 418 nm, which confirms the nanoparticle synthesis. FTIR vibrational around 3307 cm−1 assigned ν(O–H) stretching that could possibly emanate from carbohydrates or phenolics. peaks found 2917 and 2849 ascribed –C-H stretch alkyl group, 1625 due enolic β-diketones -C = O carboxylic acids, while corresponding -C-O 1375 1029 cm−1. assignment similar. It clear SEM image constituent parts were non-uniform sphere-shaped, agglomerated, average size 30.9 nm. XRD utilized determine structural characteristics crystalline nature guajava. intensity 32.35°, 36.69°, 39.24°, 44.76°, 59.42°, 67.35° represent 2θ values for diffraction pattern, aligning with standard database. AgNPs tested antibacterial properties against various strains microorganisms, including Escherichia coli , 25 μg/mL 6.02 ± 0.17 100 7.3 0.05, Staphylococcus aureus 05.02 0.07 11.3 1.12, Streptococcus mutans 04.02 0.19 11.1 0.11, Enterococcus faecalis µg/mL 0.8.05 0.11 11.7 0.02. short novelty Psidium (guava) lies its potential relevance health, as it has been possess bioactive compounds medicinal properties, such antimicrobial, antioxidant, anti-inflammatory activities, making promising natural resource therapeutic applications.

Language: Английский

Sunlight assisted degradation of methylene blue dye by zinc oxide nanoparticles green synthesized using Vitex negundo plant leaf extract DOI Creative Commons
Srinivasan Venkatesan, S. Suresh,

J. Arumugam

et al.

Results in Chemistry, Journal Year: 2024, Volume and Issue: 7, P. 101315 - 101315

Published: Jan. 1, 2024

Zinc oxide nanoparticles (ZnO NPs) were formed through a simple green synthesis route using Vitex negundo (V. negundo) leaf extract as reducing and capping source. Morphological, structural, chemical optical features of prepared ZnO NPs examined by field emission SEM, XRD, EDAX, PL, FTIR UV-vis DRS, respectively. FESEM images precisely visualized morphology the spherical with particles size ranges between 5 35 nm having mean diameter ∼19 nm. XRD pattern revealed formation hexagonal wurtzite structured high crystallinity. Asymmetric stretching vibration Zn-O bond analysis confirmed NPs. Catalytic activity was assessed against methylene blue (MB) dye degradation under natural sunlight illumination. Results photocatalytic experiment disclosed an impressive MB efficiency 98.50% at 60 min. Moreover, synthesized exhibited maximum mineralization (TOC removal) 92.34% h

Language: Английский

Citations

20
Removal of paracetamol from aqueous solution with zinc oxide nanoparticles obtained by green synthesis from purple basil (Ocimum basilicum L.) waste DOI Creative Commons
Alper Solmaz, Talip Turna, Ayşe Baran

et al.

Biomass Conversion and Biorefinery, Journal Year: 2024, Volume and Issue: 14(9), P. 10771 - 10789

Published: Jan. 30, 2024

Abstract In this study, environmentally friendly zinc oxide nanoparticles (OB-ZnO NPs) were synthesized using Ocimum basilicum (OB) plant waste extract, and the removal of paracetamol (PCM) from pharmaceutical wastes with toxic effects on ecosystem was investigated. The characteristic structure OB-ZnO NPs determined by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), scanning electron microscope (SEM) energy dispersive (EDX), Fourier transform infrared spectroscopy (FT-IR), dynamic light scattering (DLS), Zetasizer, thermogravimetry-differential thermal analysis (TGA-DTA), UV-vis spectroscopy. effect obtained PCM batch adsorption tests. study in which 6 different kinetic isotherm models examined, error functions used to determine most suitable model. Accordingly, crystal biosynthesized has a particle size 30.39 nm, surface area 13.826 m 2 /g, pore volume 0.0475 cm 3 /g. Since have zeta potential − 22.1 mV mass loss 33% at about 750 °C, these show that they are durable high temperatures. When mechanisms it model Elovich an R value 0.989 Redlich-Peterson 0.999. reached 23 mgPCM/gOB-ZnO NP efficiency, revealed plants be wastes. Graphical abstract

Language: Английский

Citations

14
Green synthesis of gold and silver nanoparticles using crude extract of Aconitum violaceum and evaluation of their antibacterial, antioxidant and photocatalytic activities DOI Creative Commons
Shahbaz Ahmad, Shujaat Ahmad, Qianqian Xu

et al.

Frontiers in Bioengineering and Biotechnology, Journal Year: 2024, Volume and Issue: 11

Published: Jan. 10, 2024

Green synthesis of metal nanoparticles (NPs) has received extensive attention over other conventional approaches due to their non-toxic nature and more biocompatibility. Herein we report gold silver NPs (AuNPs@AV AgNPs@AV) prepared by employing a green approach using crude extract Aconitum violaceum Jacquem. ex Stapf. The synthesized were characterized Scanning Electron Microscopy (SEM), Transmission (TEM), Energy Dispersive X-ray (EDX), Diffraction (XRD), UV/Visible spectroscopy, Fourier Transform Infrared (FTIR), Photoelectron Spectroscopy (XPS), Zeta Potential. Morphological analysis showed spherical triangular shapes the with average size <100 nm. AuNPs@AV AgNPs@AV exhibited effective antibacterial activities, minimum inhibitory concentrations (MICs) 95 70 μg/mL against Lactobacillus acidophilus ( L. ) 90 65 Escherichia coli E. ), respectively. Strong antioxidant effect reported DPPH radical PTIO within range IC 50 values; 161–80 μg/ml as compared standard (23–11 μg/mL) Moreover, efficient photocatalytic activity degraded 89.88% 93.7% methylene blue (MB) dye under UV light,

Language: Английский

Citations

10
Green biosynthesis of bimetallic selenium–gold nanoparticles using Pluchea indica leaves and their biological applications DOI Creative Commons
Ahmed Mohamed Aly Khalil, Ebrahim Saied, Alsayed E. Mekky

et al.

Frontiers in Bioengineering and Biotechnology, Journal Year: 2024, Volume and Issue: 11

Published: Jan. 11, 2024

Increasing bacterial resistance and the negative impact of currently used antibacterial agents have produced need for novel anticancer drugs. In this regard, nanotechnology could provide safer more efficient therapeutic agents. The main methods nanoparticle production are chemical physical approaches that often costly environmentally unsafe. current study, Pluchea indica leaf extract was biosynthesis bimetallic selenium–gold nanoparticles (Se-Au BNPs) first time. Phytochemical examinations revealed P. includes 90.25 mg/g dry weight (DW) phenolics, 275.53 DW flavonoids, 26.45 tannins. X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier-transform infrared (FTIR) spectroscopy, dynamic light scattering (DLS), scanning (SEM), energy-dispersive spectroscopy (EDX) techniques were employed to characterize Se-Au BNPs. Based on UV-vis spectra, absorbance BNPs peaked at 238 374 nm. SEM imaging, emerged as bright particles, both Au Se uniformly distributed throughout extract. XRD analysis average size 45.97 showed properties against Escherichia coli , Pseudomonas aeruginosa Staphylococcus aureus Bacillus subtilis with minimum inhibitory concentrations (MICs) 31.25, 15.62, 3.9 μg/mL, respectively. Surprisingly, a cytotoxicity assay IC 50 value toward Wi 38 normal cell line 116.8 implying all MICs described above be safely. More importantly, shown higher efficacy human breast cancer cells (MCF7), an 13.77 μg/mL. conclusion, paper is data effective utilization in biologically active

Language: Английский

Citations

7
Exploring the potential of a Ephedra alata leaf extract: Phytochemical analysis, antioxidant activity, antibacterial properties, and green synthesis of ZnO nanoparticles for photocatalytic degradation of methylene blue DOI Creative Commons

Abdelmalek Zaater,

Mohammed Oualid Serhoud,

Ilham Ben Amor

et al.

Frontiers in Chemistry, Journal Year: 2024, Volume and Issue: 12

Published: Feb. 21, 2024

Ephedra alata leaf extracts have therapeutic properties and contain various natural compounds known as phytochemicals. This study assessed the phytochemical content antioxidant effects of a extract, well zinc oxide (ZnO) nanoparticle production. The extract contained phenolic acids, including vanillic acid, chlorogenic gallic p-coumaric vanillin rutin. Its total flavonoid were 48.7 ± 0.9 mg.g -1 1.7 0.4 , respectively. displayed DPPH inhibition rate 70.5%, activity 49.5 3.4 significant antimicrobial toward Gram-positive negative bacteria. synthesized ZnO nanoparticles had spherical shape, crystallite size 25 nm, particle between 5 30 bandgap energy 3.3 eV. In specific conditions (90 min contact time, pH 7, 25°C), these efficiently photodegraded 87% methylene blue, suggesting potential applications for sustainable water treatment pollution control.

Language: Английский

Citations

7
Exploring the efficacy of biosynthesized cupric oxide nanoparticles from Jasminum sambac flower extract in wastewater treatment: Experimental investigations and potential applications DOI Creative Commons

G. Velmurugan,

Jasgurpreet Singh Chohan,

K. Vijaya Babu

et al.

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 319, P. 100570 - 100570

Published: June 27, 2024

Researchers have shown significant interest in the creation of sustainable green techniques for synthesising metal oxide nanomaterials past few years. Plant-mediated production is considered an affordable and feasible alternative to traditional physical chemical approaches. This study presents a straightforward approach environmentally friendly copper nanoparticles (CuO NPs) by solution combustion technique utilising Jasminum sambac Flower Extract. The CuO NPs produced during biosynthesis were analysed using UV-Vis, XRD, FT-IR, SEM, TEM, HPLC, BET EDX techniques. SEM pictures reveal that fragments possess sponge-like structure characterised substantial surface area. An investigation into photocatalytic activity shows they are effective as catalyst breakdown methylene blue (MB) when exposed UV solar radiation. Furthermore, demonstrated pH dependence MB. According study, best starting concentration dye breaking down things completely 2.5 parts per million (ppm), which results remarkable 79 % disintegration rate. findings indicate ability effectively treat water decomposing contaminants such blue, providing method treating wastewater.

Language: Английский

Citations

6
Endophytic Aspergillus hiratsukae mediated biosynthesis of silver nanoparticles and their antimicrobial and photocatalytic activities DOI Creative Commons
Ebrahim Saied, Mostafa A. Abdel-Maksoud,

Akram A. Alfuraydi

et al.

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: March 12, 2024

In the current study, endophytic Aspergillus hiratsukae was used for biosynthesis of silver nanoparticles (Ag-NPs) first time. The characterizations were performed using X ray diffraction (XRD), Transmission electron microscopy (TEM), Scanning with energy dispersive X-ray spectroscopy (SEM–EDX), Dynamic light scattering (DLS), Fourier transform infrared (FT-IR), and UV–Vis spectroscopy. obtained results demonstrated successful formation crystalline, spherical Ag-NPs particle diameters ranging from 16 to 31 nm. FT-IR studied displayed various functional groups involved, which played a role in capping reducing agents production. SEM–EDX revealed that main constituent AS-formed sample primarily Ag, weight percentage 64.2%. mycosynthesized assessed antimicrobial as well photocatalytic activities. indicated synthesized possess notable antibacterial efficacy against Staphylococcus aureus, Bacillus subtilis, Escherichia coli , minimum inhibitory concentrations (MICs) 62.5 250 μg/mL. Moreover, biosynthesized weak antifungal activity brasiliensis Candida albicans MICs 500 1,000 μg/mL, respectively. addition, exhibited toward acid black 2 (nigrosine) dye under both dark stimulation. Notably, After 300 min exposure light, nigrosine degraded by 93%. contrast, 51% degradation observed after darkness. conclusion, successfully A. also activities can be environmental applications.

Language: Английский

Citations

4
Unravelling the Antimicrobial, Antibiofilm, Suppressing Fibronectin Binding Protein A (fnba) and cna Virulence Genes, Anti-Inflammatory and Antioxidant Potential of Biosynthesized Solanum lycopersicum Silver Nanoparticles DOI Creative Commons
Alsayed E. Mekky, Ahmed E. M. Abdelaziz, Fady Sayed Youssef

et al.

Medicina, Journal Year: 2024, Volume and Issue: 60(3), P. 515 - 515

Published: March 21, 2024

Background and Objectives: Urinary tract infections [UTIs] are considered the third most known risk of infection in human health around world. There is increasing appreciation for pathogenicity Gram-positive Gram-negative strains UTIs, aside from fungal infection, as they have numerous virulence factors. Materials Methods: In this study, fifty urine samples were collected patients suffering UTI. Among isolates UTI microbes, six described MDR after an antibiotic susceptibility test carried out using ten different antibiotics. An alternative treatment microbial elimination involved use biosynthesized silver nanoparticles (AgNPs) derived Solanum lycopersicum [S. cumin]. Results: The sizes shapes AgNPs characterized through TEM imaging, which showed spherical particles a size range 35–80 nm, average was 53 nm. Additionally, demonstrated inhibitory activity against Staphylococcus aureus (OR648079), exhibiting 31 mm zone inhibition at minimum concentration (MIC) 4 mg/mL bactericidal (MBC) 8 mg/mL. This followed by Aspergillus niger (OR648075), 30 MIC 16 fungicidal (MFC) 32 Then, Enterococcus faecalis (OR648078), Klebsiella pneumoniae (OR648081), Acinetobacter baumannii (OR648080) each displayed 29 MBC least observed Candida auris (OR648076), with 25 MFC Furthermore, concentrations removed DPPH H2O2 IC50 value 13.54 μg/mL. Also, 3 remarkable DNA fragmentation all bacterial except faecalis. phytochemical analysis presence active organic components plant extract, concluded that rutin 88.3 mg/g, garlic acid 70.4 tannic 23.7 mg/g. Finally, 3–6 decreased expression two fundamental genes necessary biofilm formation within aureus, fnbA (6 folds), Cna (12.5 folds) when compared RecA gene, one-fold control sample. These submitted NCBI accession numbers [OR682119] [OR682118], respectively. Conclusions: findings study indicate exhibit promising antimicrobial antioxidant properties pathogens, including resistant to multiple suggests their potential effective UTIs. Further research warranted fully understand mechanisms action explore therapeutic applications these combating

Language: Английский

Citations

4
A comparative analysis of capping and reducing agents of microbial cell Aspergillus niger and Bacillus subtilis for biosynthesis of Ag doped ZnO nanoparticles DOI

Yetria Rilda,

Dhia Nada Syafitri,

Upita Septiani

et al.

Ceramics International, Journal Year: 2024, Volume and Issue: 50(16), P. 28150 - 28158

Published: May 9, 2024

Language: Английский

Citations

4
Biogenic Zinc Oxide Nanoparticles as a Promising Antibacterial Agent: Synthesis and Characterization DOI Open Access
Kunle Okaiyeto, Maria Rosa Gigliobianco, Piera Di Martino

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(17), P. 9500 - 9500

Published: Aug. 31, 2024

Nanotechnology has gained popularity in recent years due to its wide-ranging applications within the scientific community. The three main methods for synthesizing nanoparticles are physical, chemical, and biological. However, adverse effects associated with physical chemical have led a growing interest biological methods. Interestingly, green synthesis using plants prominence developing new treatments bacterial infections. Zinc oxide (ZnO NPs) produced environmentally friendly more biocompatible potential as antibacterial agents biomedical field. As result, this review discusses of ZnO NPs, factors influencing optimal synthesis, characterization techniques, activity some plant-mediated NPs. It also provides comprehensive analytical exploration NP biosynthesis, role phytochemical compounds reducing stabilizing agents, mechanism action their properties further highlights challenges prospects innovative research area.

Language: Английский

Citations

4