Aspergillus terreus-Mediated Selenium Nanoparticles and Their Antimicrobial and Photocatalytic Activities DOI Creative Commons
Ebrahim Saied, Alsayed E. Mekky, Abdulaziz A. Al–Askar

и другие.

Crystals, Год журнала: 2023, Номер 13(3), С. 450 - 450

Опубликована: Март 4, 2023

Selenium (Se) is a nutritional component necessary for animal and plant development reproduction. nanoparticles (SeNPs) have high absorption rate during routine supplementation. In the current study, cell-free extract of Aspergillus terreus was used as reducing stabilizing agent in synthesis SeNPs using green eco-friendly method. The mycosynthesized were characterized by UV-visible spectrophotometry, Fourier transform infrared spectroscopy, X-ray diffraction dynamic light scattering, transmission electron microscopy, scanning microscopy. results characterization process showed that had spherical shapes sizes less than 100 nm. Results exhibited promising antibacterial activity against both Gram-positive Gram-negative bacteria where inhibition zones 14, 20, 16, 13 mm toward S. haemolyticus, aureus, E. coli, K. pneumoniae, respectively. However, it weak antifungal C. albicans, zone 12 mm. efficacy decolorization malachite dye investigated. illustrated rapid biodegradation dye, reaching up to 89% after 240 min. conclusion, successfully biosynthesized A. demonstrated antimicrobial photocatalytic activities.

Язык: Английский

Iron Oxide Nanoparticles: Green Synthesis and Their Antimicrobial Activity DOI Creative Commons
Johana Zúñiga-Miranda, Julio Guerra, Alexander Mueller

и другие.

Nanomaterials, Год журнала: 2023, Номер 13(22), С. 2919 - 2919

Опубликована: Ноя. 8, 2023

The rise of antimicrobial resistance caused by inappropriate use these agents in various settings has become a global health threat. Nanotechnology offers the potential for synthesis nanoparticles (NPs) with activity, such as iron oxide (IONPs). IONPs is promising way to overcome or pathogenicity because their ability interact several biological molecules and inhibit microbial growth. In this review, we outline pivotal findings over past decade concerning methods green using bacteria, fungi, plants, organic waste. Subsequently, delve into primary challenges encountered utilizing diverse organisms materials. Furthermore, compile most common employed characterization IONPs. To conclude, highlight applications antibacterial, antifungal, antiparasitic, antiviral agents.

Язык: Английский

Процитировано

39

Phytochemical Substances—Mediated Synthesis of Zinc Oxide Nanoparticles (ZnO NPS) DOI Creative Commons

Fawzeeh Nayif Alharbi,

Zulfa M. Abaker,

Suzan Zein Alabdeen Makawi

и другие.

Inorganics, Год журнала: 2023, Номер 11(8), С. 328 - 328

Опубликована: Авг. 5, 2023

Artemisia absinthium (A. absinthium) leaf extract was successfully used to create zinc oxide nanoparticles (ZnO NPs), and their properties were investigated via several techniques, including X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive (EDX), Fourier transform infrared (FTIR), ultraviolet–visible spectroscopy (UV–Vis spectroscopy). SEM analysis confirmed the spherical elliptical shapes of particles. Three different peaks observed EDX at energies 1, 8.7, 9.8 keV, together with a single oxygen peak 0.5 keV. The XRD identified ZnO NPs as having hexagonal wurtzite structure, particle size that decreased from 24.39 18.77 nm, an increasing surface area (BET) 4.003 6.032 m2/g for (without extract) green NPs, respectively. FTIR groups molecules accountable stabilization minimization which apparent 3400 cm. Using UV–Vis spectroscopy, band-gap (Egs) estimated, values 2.65 2.79 eV,

Язык: Английский

Процитировано

34

Modifying engineered nanomaterials to produce next generation agents for environmental remediation DOI
Muhammad Arslan Ahmad, Muhammad Adeel, Noman Shakoor

и другие.

The Science of The Total Environment, Год журнала: 2023, Номер 894, С. 164861 - 164861

Опубликована: Июнь 19, 2023

Язык: Английский

Процитировано

29

Current Knowledge, Research Progress, and Future Prospects of Phyto-Synthesized Nanoparticles Interactions with Food Crops under Induced Drought Stress DOI Open Access
Abdul Wahab, Farwa Batool, Murad Muhammad

и другие.

Sustainability, Год журнала: 2023, Номер 15(20), С. 14792 - 14792

Опубликована: Окт. 12, 2023

Drought stress threatens global food security and requires creative agricultural solutions. Recently, phyto-synthesized nanoparticles NPs have garnered attention as a way to reduce crop drought. This extensive research examines how improve growth biochemistry in drought-stressed situations. The review begins with an introduction highlighting the urgency of addressing challenges posed by It also highlights significance synthesized from photosynthesis this context. Its purpose is underscore importance sustainable farming practices. approach contrasted conventional methods, elucidating ecological economic advantages NPs. discusses nanoparticles, including titanium dioxide, iron oxide, gold, silver, copper. In addition, we their ability enhance resistance. primary focus elucidate effects on plant development under drought stress. Noteworthy outcomes encompass improvements seed germination, seedling growth, water absorption, photosynthesis, chlorophyll content, activation antioxidant defense mechanisms, modulation hormonal responses. These results potential agents for enhancing mitigating assesses risks using agriculture. Considerations include non-target organisms, soil, environmental impacts. Further needed determine long-term effects, dangers, benefits Nanoparticles offer targeted improving tolerance, outpacing traditional methods ethics balance. Their mechanisms range nutrient delivery molecular regulation. However, impact remains understudied. critical identifying gaps advancing practices amid scarcity.

Язык: Английский

Процитировано

29

Aspergillus terreus-Mediated Selenium Nanoparticles and Their Antimicrobial and Photocatalytic Activities DOI Creative Commons
Ebrahim Saied, Alsayed E. Mekky, Abdulaziz A. Al–Askar

и другие.

Crystals, Год журнала: 2023, Номер 13(3), С. 450 - 450

Опубликована: Март 4, 2023

Selenium (Se) is a nutritional component necessary for animal and plant development reproduction. nanoparticles (SeNPs) have high absorption rate during routine supplementation. In the current study, cell-free extract of Aspergillus terreus was used as reducing stabilizing agent in synthesis SeNPs using green eco-friendly method. The mycosynthesized were characterized by UV-visible spectrophotometry, Fourier transform infrared spectroscopy, X-ray diffraction dynamic light scattering, transmission electron microscopy, scanning microscopy. results characterization process showed that had spherical shapes sizes less than 100 nm. Results exhibited promising antibacterial activity against both Gram-positive Gram-negative bacteria where inhibition zones 14, 20, 16, 13 mm toward S. haemolyticus, aureus, E. coli, K. pneumoniae, respectively. However, it weak antifungal C. albicans, zone 12 mm. efficacy decolorization malachite dye investigated. illustrated rapid biodegradation dye, reaching up to 89% after 240 min. conclusion, successfully biosynthesized A. demonstrated antimicrobial photocatalytic activities.

Язык: Английский

Процитировано

28