Retraction: Preparation of NiFeO@MIL-101(Fe)/GO as a novel nanocarrier and investigation of its antimicrobial properties.

[This retracts the article DOI: 10.1039/D1RA08523A.].

Antibiofilm and cytotoxic potential of extracellular biosynthesized gold nanoparticles using actinobacteria sp. KMN.

This study intends to biosynthesize gold nanoparticles (AuNPs) using sp. KMN and to investigate its potential antibiofilm, cytotoxic and antioxidant activities. The physicochemical characterization of biosynthesize AuNPs was identified by UV-Visible, energy-dispersive X-ray, and Fourier transform infrared spectroscopy, as well as high-resolution transmission electron microscopy, X-ray diffraction, zeta potential, and dynamic light scattering methods.

Preparation of NiFeO@MIL-101(Fe)/GO as a novel nanocarrier and investigation of its antimicrobial properties.

In this research, we have investigated a novel magnetic nanocomposite including NiFeO@MIL-101(Fe)/GO for the delivery of the antibiotic tetracycline (TC). Moreover, the antibacterial activity of NiFeO@MIL-101(Fe)/GO, NiFeO@MIL-101(Fe)/GO/TC and pure TC was evaluated by agar well diffusion and minimum inhibitory concentration (MIC) methods on both Gram-negative () and Gram-positive () bacteria. In addition, the cytotoxicity of NiFeO@MIL-101(Fe)/GO/TC on HeLa cells was determined by an MTT assay which showed good results.

Desertifilum sp. EAZ03 cell extract as a novel natural source for the biosynthesis of zinc oxide nanoparticles and antibacterial, anticancer and antibiofilm characteristics of synthesized zinc oxide nanoparticles.

Aims: The use of cyanobacterial cell extracts for the synthesis of zinc oxide nanoparticles (ZnO NPs) seems to be superior to other methods of synthesis because of its a green, environmentally friendly and low-cost approach. In this study, the cell extract of a newly characterized cyanobacterial strain Desertifilum sp. EAZ03 was used for the biosynthesis of ZnO NPs.