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96 results for “nanoparticle”
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Research ArticleOpen accessEvery word in the titleTotal Phenolic Composition and Antioxidant Activity of Silver Nanoparticles using Aqueous Extract of Chilca Leaves (Baccharis latifolia)Fernanda Pilaquinga, Camila Granja, Eliza Jara et al.The importance of studying polyphenols as natural antioxidants has encouraged the search for new methods of rapid, simple analysis. The synthesis of silver Nanoparticles (Ag NPs) using plant extracts has been presented as an alternative to determine the presence of polyphenolic compounds. In this study, aqueous extract of chilca (Baccharis latifolia), an endemic plant species from South America known for … …American Journal of Applied Sciences, Vol. 18, Issue 1 · 16 Apr 2021 · 8,341 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleA Clean-Green Synthesis of Platinum Nanoparticles Utilizing a Pernicious Weed Lantana (Lantana Camara)Musthafa O. Mavukkandy, Sudip Chakraborty, Tasneem Abbasi, Shahid A. AbbasiA rapid, reproducible single step method is proposed for synthesizing platinum nanoparticles using an invasive weed lantana (Lantana camara, L). The method involves mixing of platinum (VI) solution, lantana leaf extract and ascorbic acid in appropriate concentrations and keeping the mixture at 95°C for 8 min. The collective action of ascorbic acid and leaf extract reduced the chloroplatinic acid to … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 1 · 23 Feb 2016 · 10,447 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleToxicity of Zinc Oxide Nanoparticles in Lung Tissue After Repeated Oral AdministrationAtaollah Shokouhian, Saman Soheili, Saeed Moradhaseli et al.Pathological experiments should be considered following oral administration of ZnO. Effect of different doses of ZnO nanoparticle on LDH in oral method showed significant differences in control group (p<0.05) at high dose. Levels of IgG, TNF-α and IL-6 also elevated after administration of ZnO. The level of GSH decreased significantly. Lung damages included hyperemia and bleeding, atelectasis, light emphysema, pribronchiolitis, … …American Journal of Pharmacology and Toxicology, Vol. 8, Issue 4 · 21 Oct 2013 · 7,703 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleElectrodeposition Fabrication of Pd Nanoparticles on Glassy Carbon Electrode Towards Methanol Oxidation ApplicationXiaoyun Qin, Wenbo Lu, Yonglan Luo et al.The present paper reports on the rapid fabrication of Pd nanoparticles on glassy carbon electrode by eletrodeposition technique. It suggests that such film exhibits good catalytic activity and stability with respect to methanol oxidation in an alkaline media. It also suggests that the loading of the Pd nanoparticles on the substrate and therefore the effective catalytic area can be tuned … …Current Research in Nanotechnology, Vol. 4, Issue 1 · 12 Apr 2013 · 11,333 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleProperties of Chitosan Nanoparticles Formed Using Sulfate Anions as Crosslinking BridgesMayyas M.A. Al-RemawiProblem statement: The preparation of new simple Chitosan nanoparticle delivery system is very important and could have many applications particularly in pharmaceutical field to be used as a drug delivery system. In this study, the production of robust Chitosan nanoparticles has been developed and characterized by chemical crosslinking using sulfate anions. Approach: Chitosan polymer is considered one of the best … …American Journal of Applied Sciences, Vol. 9, Issue 7 · 28 May 2012 · 9,871 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleFactors Affecting the Geometry of Silver Nanoparticles Synthesis in Chrysosporium Tropicum and Fusarium OxysporumNamita Soni, Soam PrakashProblem statement: Biosynthesis of nanoparticles using fungal cells is a novel approach to develop biotechnological possess such as bioleaching and bioremediation. In the present study, an effort was made to investigate the effect of physio-chemical parameters on the silver nanoparticle formation with the fungus Chrysosporium tropicum Carmichael and Fusarium oxysporum Schltdl. Approach: The possibilities to manipulating the geometry of silver … …Current Research in Nanotechnology, Vol. 2, Issue 1 · 20 Jan 2012 · 19,454 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Optical Nonlinearity of Au and Ag Nanoparticle Prepared by the γ-Radiation MethodEsmaeil Shahriari, W. M.M. Yunus, Kazem Naghavi, Elias SaionProblem statement: The third order nonlinear optical properties of metal nanoparticles have been of interest in physical chemistry, medical diagnostics and optical devices. Gold colloidal nanoparticles are responsible for the brilliant reds seen in stained glass windows and silver particles are typically yellow. The purpose of the study was to determine the nonlinear refraction and absorption coefficient of the Au … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 2 · 30 Jun 2010 · 9,541 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleQuantum Mechanical Calculation of the Optical Absorption of Silver and Gold Nanoparticles by Density Functional TheoryElham Gharibshahi, Elias SaionProblem statement: Metal nanoparticles confine the motion of conduction electrons and exhibit a strong optical absorption of electromagnetic radiation in the UV-vis-NIR region. The absorption is classically derived from the collective oscillations of free electrons in a metallic nanostructure as a consequence of incident electromagnetic radiation polarizing the particle optically embedded in a dielectric matrix. These oscillations, known as the … …Physics International, Vol. 1, Issue 1 · 31 Mar 2010 · 16,181 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleInfluence of Zein-Fucoidan Nanoparticles Loaded with Curcumin on the Maillard Reaction Between Casein and LactoseShiyang Li, Yufan Liu, Yuanda Song et al.The influence of curcumin-encapsulated Zein-Fucoidan Nanoparticles (CZFNPs) on the formation of Maillard reaction products (MRP) at the early, intermediate, and advanced stages in a casein-lactose (CN-Le) reaction system was systematically studied. As controls, the effects of Zein-Fucoidan Nanoparticles (ZFNPs) and free Curcumin (Cur) were also evaluated. The results showed that CZFNPs effectively inhibited the formation of fructosamine, Glyoxal (GO), as … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 2 · 30 Jul 2026 · 605 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSeed Treatment-Based Biocontrol of Tomato Damping off Using Plant Essential Oil and Green Silver NanoparticlesLaila Reklaoui, Zine El Abidine Bzazou Elouazzani, El Touhami Tayebi Ouazzani et al.The fungal pathogen Rhizoctonia solani is a major causal agent of damping-off in tomato plants, leading to severe yield losses worldwide. Conventional fungicides, while effective, raise concerns regarding environmental safety and human health, highlighting the urgent need for sustainable alternatives. In this study, we report for the first time the use of Origanum compactum essential oil to biosynthesize silver nanoparticles … …OnLine Journal of Biological Sciences, Vol. 26, Issue 2 · 2 Jun 2026 · 1,298 accessesView PDFCite