Boiling up Zinc Oxide Nanorods without Toxic Solvents

Summary posted by Meridian on 8/21/2009
Source: AZoNano.com
Author: n/a

Researchers in Saudi Arabia have developed a non-toxic and environmentally friendly way to make nanorods of zinc oxide. Zinc oxide has many uses in its nanoparticle and nanorod form - it can be used in food products, such as breakfast cereals, as a source of zinc, and can also be used in dentistry and cosmetic ointments, creams, and sunscreens. This new approach, developed by scientists at King Khalid University in Abha and King Abdul-Aziz University in Jeddah, could allow such nanorods to be used safely in medical and other applications, as it avoids the use of toxic organic solvents. The process uses only water and zinc powder, with zinc powder being added to water, blasted with ultrasound for a few minutes, then warmed to a temperature of 200 degrees Celsius for 24 hours. M.A. Shah, one of the researchers, says "[S]ince water is regarded as a benign solvent and non-toxic, the product (nanorods) could be used safely for biomedical and other applications," adding that the proposed method is novel, rapid, economical, environmentally benign and produces no pollutants. The approach is described in the current issue of the International Journal of Nanoparticles. The article can be viewed online at the link below.

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our team contact us site map	Boiling up Zinc Oxide Nanorods without Toxic Solvents Summary posted by Meridian on 8/21/2009 Source: AZoNano.com Author: n/a Researchers in Saudi Arabia have developed a non-toxic and environmentally friendly way to make nanorods of zinc oxide. Zinc oxide has many uses in its nanoparticle and nanorod form - it can be used in food products, such as breakfast cereals, as a source of zinc, and can also be used in dentistry and cosmetic ointments, creams, and sunscreens. This new approach, developed by scientists at King Khalid University in Abha and King Abdul-Aziz University in Jeddah, could allow such nanorods to be used safely in medical and other applications, as it avoids the use of toxic organic solvents. The process uses only water and zinc powder, with zinc powder being added to water, blasted with ultrasound for a few minutes, then warmed to a temperature of 200 degrees Celsius for 24 hours. M.A. Shah, one of the researchers, says "[S]ince water is regarded as a benign solvent and non-toxic, the product (nanorods) could be used safely for biomedical and other applications," adding that the proposed method is novel, rapid, economical, environmentally benign and produces no pollutants. The approach is described in the current issue of the International Journal of Nanoparticles. The article can be viewed online at the link below. The original article may still be available at www.azonano.com/news.asp?newsID=13215 As tagged by Meridian Institute: Health And Medical: Devices, Diseases Implications: Human Enhancement, Governance, Economic Competitiveness Materials And Manufacturing: Manufacturing Nanomaterials: Metal Nanoparticle Regions: Central and West Asia and North Africa (CWANA) Stakeholders: Academia Minerals And Metals: Metals Food And Agriculture: Food Related Forums: Health and Medical Materials and Manufacturing Metals and Minerals Food and Agriculture Economic Competitiveness Governance print format	NDN Home Subscribe Manage Subscription Search News Archives Nanotechnology Quintuples Heating Capacity of Solar Water Heaters -- Renewable Energy Magazine (9/1/2010) Researchers at the University of Rio de Janeiro (UFRJ), Brazil, have developed a solar heating system that uses nanotechnology to heat water to five times the temperature of a conventional system, while also permitting the collector surface area to retain up to 98 percent of heat from solar radiation. [More] Pakistan's Science Minister Attacks Funding Cuts -- SciDev.Net (9/1/2010) The Pakistan government has cuts its funds for the Pakistan Ministry of Science and Technology's 2010-2011 budget by almost half, causing the science minister, Muhammad Azam Khan Swati, to criticize his own government. [More] Nanotechnology: Small wonders -- Nature (9/1/2010) This article takes an in-depth look at the United States National Nanotechnology Initiative (NNI)'s first 10 years - to find out where the money went and what the initiative plans to do next. [More] Nanotech on Farmers' Fields -- Silicon Nutrition (8/31/2010) A plant nutrition study that addresses nano-sized plant nutrients is now available from the Landbouwkundige Uitgeverij G.C. van den Berg (Veenendaal, The Netherlands). [More] More News... Learn how to include these headlines on your own website by clicking here. Please email us if you require text-only versions of the daily emails.