Quorum sensing (QS) is a density-dependent chemical process of cell-to-cell communication in which certain signals are activated, leading to the coordination of pathogenic behaviors and the regulation of virulence in bacteria. Inhibition of QS can prevent biofilm formation and reduce virulence behaviors of bacteria. Herein, bovine serum albumin (BSA)-coated silver nanoparticles (NPs) (Ag-AgS@BSA NPs) were synthesized and studied as an anti-QS agent. Ag-AgS NPs prepared through a BSA-mediated biomineralization process under ambient aqueous conditions and their physicochemical properties were characterized. The anti-QS activity of the resulting BSA-coated NPs (Ag-AgS@BSA NPs) was investigated for the first time. The result confirmed the potential of Ag-AgS@BSA NPs as novel and useful therapeutic tools for antibacterial purposes.
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http://dx.doi.org/10.2217/nnm-2022-0203 | DOI Listing |
Dye-laden wastewater poses a significant environmental and health threat. This study investigated the potential of green-synthesized zinc oxide nanoparticles (ZnO NPs), derived from Padina pavonica brown algae extract, for the removal of methylene blue (MB) dye. The hypothesis was that utilizing algal extract for ZnO NP synthesis would enhance adsorption capacity and photocatalytic activity for dye removal.
View Article and Find Full Text PDFSci Rep
December 2024
Faculty of Science, Botany Department, Mansoura University, Mansoura, 35516, Egypt.
In the present study, extracellular cell-free filtrate (CFF) of fungal Fusarium oxysporum f. sp. cucumerinum (FOC) species, was utilized to biosynthesize zinc oxide /zinc sulfide (ZnO/ZnS) nanocomposite.
View Article and Find Full Text PDFMicrob Pathog
December 2024
Davis Pharmaceutical Laboratories, 121, industrial triangle area, kahuta road, Islamabad.
This study explores the potential antagonistic effects of selenium-doped zinc oxide nanoparticles (Se-ZnO NPs), synthesized through a sustainable approach, on maize charcoal rot induced by the fungus Macrophomina phaseolina. Se-ZnO-NPs were prepared using the rhizobium extract of Curcuma longa and characterized for their physicochemical properties. Characterization included various in vitro parameters such as FTIR, ICP-MS, particle size, PDI, and zeta potential.
View Article and Find Full Text PDFJ Colloid Interface Sci
December 2024
Molecular Diagnostic Center, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Hangzhou First People's Hospital, Hangzhou 310006, China. Electronic address:
Developing multimodal combination therapy strategies to disrupt the redox homeostasis within tumor cells is currently an important approach in cancer treatment. In this study, we designed and prepared multifunctional composite nanoparticles MPDA-PEG@MnO@2-DG (MPPMD NPs) utilizing mesoporous polydopamine nanoparticles (MPDA NPs) as carriers. These carriers were coated with polyethylene glycol (PEG), and manganese dioxide (MnO) and loaded with 2-deoxy-d-glucose (2-DG).
View Article and Find Full Text PDFJ Colloid Interface Sci
December 2024
Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China; Joint International Research Laboratory of Intelligent Drug Delivery Systems, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China. Electronic address:
Optimizing the design of nanoparticulate co-delivery systems of antigens and immunomodulators to induce antigen-specific immune tolerance effectively remains a challenge, constrained by low drug loading capacity and premature leakage of active ingredients. Here, we report a prodrug self-assembled nanoparticles (NPs) strategy to synergistically deliver antigen and rapamycin (RAPA) into antigen-presenting cells (APCs) by simply conjugating rapamycin with an aliphatic chain. These prodrug NPs can be efficiently taken up by APCs and then release rapamycin through cleavage of the linker by intracellular esterase.
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