Traditional medicine has long employed the shrub Hibiscus sabdariffa to treat a variety of illnesses. The biochemical characteristics of silver nanoparticles made using the plant extract of Hibiscus sabdariffa were examined in this work. According to the results, the plant extract of Hibiscus sabdariffa had a total phenolic quantity of 84.9 mg/gm and a total quantity of flavonoids of 41.50 mg/gm. The extract also showed antibacterial action against Escherichia coli and Staphylococcus aureus (75.15% scavenging activity). The silver nanoparticles of plant extracts were stable in PBS solution for at least 30 days and had a mean size of particles of 21.22 nm. Silver nanoparticles were shown to both be cytotoxic on human lung cancer cell line A-549 and have anti-inflammatory action. Overall, the research's findings demonstrate the fascinating biological activity of the silver nanoparticles made from the extract of the Hibiscus sabdariffa plant. To assess these compounds' potential as medicines, more research is required.
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http://dx.doi.org/10.1007/s12010-024-04901-x | DOI Listing |
Odontology
January 2025
Oral Biology Department, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.
Natural bone is a self-regenerating nanocomposite made of proteins and minerals. Such self-regenerative capacity can be negatively affected by certain diseases involving the bone or its surrounding tissues. Our study assesses the ability of bone grafting material to regenerate bone in animals who have artificially created critical-sized defects.
View Article and Find Full Text PDFNanomaterials (Basel)
December 2024
Department of Mechanochemistry, Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia.
In the original publication [...
View Article and Find Full Text PDFNanomaterials (Basel)
January 2025
King Abdullah Institute for Nanotechnology, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
We aimed to synthesize silver nanoparticles (AgNPs) using (cardamom) extracts and assess the cytotoxicity and genotoxicity of the cardamom extract, -AgNPs, and the insecticide ATCBRA-commonly used for pest control-on the root system of (broad bean). The chemical composition of the aqueous cardamom extract was identified and quantified using GC-MS, revealing a variety of bioactive compounds also present in cardamom essential oil. These included α-terpinyl acetate (21.
View Article and Find Full Text PDFNanomaterials (Basel)
January 2025
Department of Chemistry and NIS Centre, University of Torino, Via Giuria 7, 10125 Torino, Italy.
Heavy metals are life-threatening pollutions because of their great toxicity, long-term persistence in nature and their bioaccumulation in living organisms. In this work, we performed multivariate curve resolution-alternating least squares analysis of UV-Vis raw spectra received by a colorimetric sensor constructed on mercaptoundecanoic acid functionalized silver nanoparticles (AgNPs@11MUA) to detect Cd, Cu, Mn, Ni, and Zn in water. This combined approach allowed the rapid identification and quantification of multiple heavy metals and showed adequate sensitivity and selectivity, thus representing a promising analytical and computational method for both laboratory and field applications such as environmental safety and public health monitoring.
View Article and Find Full Text PDFNanomaterials (Basel)
December 2024
Department of Textiles, Faculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva 12, 1000 Ljubljana, Slovenia.
A smart viscose fabric with temperature and pH responsiveness and proactive antibacterial and UV protection was developed. PNCS (poly-(N-isopropylakrylamide)/chitosan) hydrogel was used as the carrier of silver nanoparticles (Ag NPs), synthesised in an environmentally friendly manner using AgNO and a sumac leaf extract. PNCS hydrogel and Ag NPs were applied to the viscose fabric by either in situ synthesis of Ag NPs on the surface of viscose fibres previously modified with PNCS hydrogel, or by the direct immobilisation of Ag NPs by the dehydration/hydration of the PNCS hydrogel with the nanodispersion of Ag NPs in the sumac leaf extract and subsequent application to the viscose fibres.
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