Loading...
Please wait, while we are loading the content...
Similar Documents
Mycosynthesis of Hematite $(α-Fe_{2}O_{3}$) Nanoparticles Using Aspergillus niger and Their Antimicrobial and Photocatalytic Activities
| Content Provider | MDPI |
|---|---|
| Author | Saied, Ebrahim Salem, Salem S. Al-Askar, Abdulaziz A. Elkady, Fathy M. Arishi, Amr A. Hashem, Amr H. |
| Copyright Year | 2022 |
| Description | Nanoparticles (NPs) and nanomaterials (NMs) are now widely used in a variety of applications, including medicine, solar energy, drug delivery, water treatment, and pollution detection. Hematite $(α-Fe_{2}O_{3}$) nanoparticles (Hem-NPs) were manufactured in this work by utilizing a cost-effective and ecofriendly approach that included a biomass filtrate of A. niger AH1 as a bio-reducer. The structural and optical properties of Hem-NPs were investigated using X-ray diffraction (XRD), transmission electron microscopy (TEM), dynamic light scattering (DLS), and UV-visible and Fourier-transform infrared (FTIR) spectroscopies. The results revealed that all of the studied parameters, as well as their interactions, had a significant impact on the crystallite size. The average diameter size of the biosynthesized Hem-NPs ranged between 60 and 80 nm. The antimicrobial and photocatalytic activities of Hem-NPs were investigated. The antimicrobial results of Hem-NPs revealed that Hem-NPs exhibited antibacterial activity against E. coli, B. subtilis, and S. mutans with MICs of 125, 31.25, and 15.62 µg/mL, respectively. Moreover, Hem-NPs exhibited antifungal activity against C. albicans and A. fumigatus, where the MICs were 2000 and 62.5 µg/mL, respectively. The efficiency of biosynthesized Hem-NPs was determined for the rapid biodegradation of crystal violet (CV) dye, reaching up to 97 percent after 150 min. Furthermore, Hem-NPs were successfully used more than once for biodegradation and that was regarded as its efficacy. In conclusion, Hem-NPs were successfully biosynthesized using A. niger AH1 and demonstrated both antimicrobial activity and photocatalytic activity against CV dye. |
| Starting Page | 397 |
| e-ISSN | 23065354 |
| DOI | 10.3390/bioengineering9080397 |
| Journal | Bioengineering |
| Issue Number | 8 |
| Volume Number | 9 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-08-17 |
| Access Restriction | Open |
| Subject Keyword | Bioengineering Water Science and Technology Hematite (α-fe2o3) Iron Oxide Nanoparticles Antimicrobial Activity Photocatalytic Activity |
| Content Type | Text |
| Resource Type | Article |
