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 Understanding Public Debate on Nanotechnologies: Options for Framing Public Policy -- The Innovation Society (2/8/2010) The Governance and Ethics Unit of the Directorate General for Research (DG Research) of the European Commission (EC) has published an overview paper on options for framing public policy on nanotechnologies. [More] UN Patent Filings Dropped for 1st Time Since 1978 -- ABC news (2/8/2010) The United Nations World Intellectual Property Organization (WIPO), an entity through which a company can, for a fee, file a request for patent protection in any or all of the 142 countries that have subscribed to the U.N.'s Patent Cooperation Treaty, reported that the number of international patent filings dropped last year for the first time since 1978. [More] TECHNOLOGY: Science Panel Probes Renewable Energy's Current Use of China's Rare Metals -- Environment & Energy Daily (2/8/2010) A United States House of Representatives Science and Technology subcommittee this week will hold a hearing on rare earth mineral production and the resource's role in the growing clean energy industry. [More] Nanofood for Thought -- Nature Nanotechnology (2/5/2010) This editorial, in the journal Nature Nanotechnology, is in response to the recent report, "Nanotechnologies and Food", released in January by the House of Lords Science and Technology Committee, United Kingdom, that criticized the food industry for failing to be transparent about its research into the uses of nanotechnologies and nanomaterials. [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.