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90 articles for “Nanoparticles”
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EditorialOpen accessIn the abstractProtecting crop species from biotic and abiotic constraints in the era of Global Change: are we ready for this challenge?Marco Landi, Giovanni BenelliReliable and affordable supply of food is of crucial importance to the progress and stability of human societies. During the last century, we have assisted to an extraordinary increase of crop yields, especially for the most widespread and consumed crop species, such as rice, wheat, corn and soybean. The Broadbalk experiment, one of the oldest continuous agronomic experiments in the … …American Journal of Agricultural and Biological Sciences, Vol. 11, Issue 2 · 4 Jun 2016 · 8,399 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Nano-Alumina on Pore Structure and Durability of Class F Fly Ash Self-Compacting MortarEhsan Mohseni, Konstantinos Daniel TsavdaridisIn this study the effect of pore structure on the mechanical properties and durability characteristics of Self-Compacting Mortars (SCM) containing nano-Al2O3 (NA) and class F fly ash are investigated. Al2O3 nanoparticles with the maximum size of 15 nm in three different proportions of 1, 3 and 5% of the binder content were utilized to partially replace the cement. The 25% … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 2 · 14 Apr 2016 · 9,472 accessesView PDFCite
Research ArticleOpen accessIn the abstractElectrical Properties of Cobalt Oxide/Silica Nanocomposites Obtained by Sol-Gel TechniqueGomaa A.M. Ali, Osama A. Fouad, Salah A. MakhloufThis work is an extension of our previous studies on cobalt oxide nanoparticles impeded in a silica matrix. Here we study the preparation and characterization of high cobalt content materials (60-90 wt%). In addition, the DC electrical conductivity of the prepared materials in a wide temperature range (350-673 K) was measured and discussed. The activation energy has been obtained according … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 1 · 18 Nov 2015 · 8,678 accessesView PDFCite
Research ArticleOpen accessIn the abstractEnhanced Dielectric Properties of Polyaniline/Silver/Carbon Nanotubes NanocompositeS. M. Reda, Sheikha M. Al-GhannamCurrent researches had shown that the electrical conductivity of most polymers depend on the method of its preparation and type of fillers. This research therefore aimed at studying the electrical properties of polyaniline carbon nanotubes nanocomposite prepared by hand mixing and decoration methods. The effect of preparation method on electrical properties of polyaniline containing Carbon Nanotubes (CNTs) and silver nanoparticles … …Current Research in Nanotechnology, Vol. 4, Issue 1 · 13 Jan 2014 · 7,019 accessesView PDFCite
Research ArticleOpen accessIn the abstractInvolvement of Bone Marrow Megakaryocytes in the Formation of the Bone Marrow-Blood Barrier in Transgenic MicePawel Laskowski, Karol Ostrowski, Beata Klim et al.Mature cell release takes place through the hypothetical barrier- the bone marrow-blood barrier. It consists of blood vessels and cells that surround them. Such cells are, among others, megakaryocytes. They are involved in the release of platelets or other cellular components of blood. The amount and the development of megakaryocytes and thus the maturity of barrier depends on many factors. … …American Journal of Pharmacology and Toxicology, Vol. 8, Issue 3 · 19 Sep 2013 · 7,180 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetection of Cancer Biomarkers with NanotechnologyLei Zhang, Dan Lv, Weijun Su et al.Early detection of cancer biomarkers with high precision is critically important for cancer therapy. A variety of sensors based on different nanostructured materials have attracted intensive research interest due to their potential for highly sensitive and selective detection of cancer biomarkers. This review covers the use of a variety of nanostructured materials, including carbon nanotubes, silicon nanowires, gold nanoparticles and … …American Journal of Biochemistry and Biotechnology, Vol. 9, Issue 1 · 18 Mar 2013 · 8,280 accessesView PDFCite
Research ArticleOpen accessIn the abstractTargeting Cellular Receptors as a Strategy for the Development of New Generation Mucosal VaccinesConstantine Bitsaktsis, Kari Wiedinger, Edmund Joseph GosselinMucosal pathogens are a primary source of infection that require the development of vaccines to induce a specific, protective and long lasting immune response. Despite an urgent need, development of effective mucosal immunization strategies has proven difficult. The literature was reviewed to elucidate cell specific targets that may be utilized to increase the immunogenicity of protective antigens through mucosal vaccination. … …American Journal of Immunology, Vol. 9, Issue 1 · 2 Feb 2013 · 7,026 accessesView PDFCite
Research ArticleOpen accessIn the abstractEast Kolkata Wetland: A Multifunctional Niche of International ImportanceI. Mukherjee, S. Ray Chaudhuri, D. Ghosh, A. R. ThakurProblem statement: In the megacity Kolkata, the need for space to accomodate the ever increasing population is increasing day by day. As a result the encoarchment of the large wetland on the eastern frindge of the city is increasing and so is the threat of its loosing the status of Ramsar Status. Approach: Proper documentation of the existing traditional practice … …OnLine Journal of Biological Sciences, Vol. 12, Issue 2 · 31 Jul 2012 · 9,082 accessesView PDFCite
Research ArticleOpen accessIn the abstractCurrent and Future Nanotech Applications in the Oil IndustryCocuzza Matteo, Pirri Candido, Rocca Vera, Verga FrancescaProblem statement: Nanotech applications in the oil industry are not completely new: nanoparticles have been successfully used in drilling muds for the past 50 years. Only recently all the other key areas of the oil industry, such as exploration, primary and assisted production, monitoring, refining and distribution, are approaching nanotechnologies as the potential Philosopher's stone for facing critical issues related … …American Journal of Applied Sciences, Vol. 9, Issue 6 · 13 Mar 2012 · 10,624 accessesView PDFCite
Research ArticleOpen accessIn the abstractMNM1D: A Numerical Code for Colloid Transport in Porous Media: Implementation and ValidationTiziana Tosco, Rajandrea SethiProblem statement: Understanding the mechanisms that control the transport and fate of colloidal particles in subsurface environments is a crucial issue faced by several researchers in the last years. In many cases, natural colloids have been shown to play a major role in the spreading of strongly sorbing contaminants, while manufactured micro-and nanoparticles, which are nowadays widely spread in the … …American Journal of Environmental Sciences, Vol. 5, Issue 4 · 31 Aug 2009 · 8,291 accessesView PDFCite