Featured Research

from universities, journals, and other organizations

A Safe Approach To Nanotechnology

Date:
August 24, 2009
Source:
Inderscience Publishers
Summary:
A nontoxic and environmentally friendly way to make tiny nanorods of zinc oxide has been developed for the first time. The approach could allow the nanorods to be used safely in medical and for other applications.

A non-toxic and environmentally friendly way to make tiny nanorods of zinc oxide has been developed for the first time by researchers in Saudi Arabia. The approach, described in the current issue of the International Journal of Nanoparticles, could allow the nanorods to be used safely in medical and for other applications.

Related Articles


Zinc oxide has many uses when fabricated as nanoparticles and nanorods, just 100 nanometers in diameter. In such as nanoscopic form, it can be used in food products, such as breakfast cereals as a source of zinc, a necessary nutrient. It can also be used in dentistry and cosmetic ointments, creams, and lotions to protect against sunburn and skin damage caused by ultraviolet light.

Zinc oxide can also act as a sensor for detecting changes in electric current due to absorption of gas molecules and so be used for gas leak warning devices. In electronics, the same material has wrought a revolution in lasers and light emitting diodes (LEDs). And as a biosensor, it can be used as a biomimic membrane to immobilize and modify biomolecules.

Now, M.A. Shah and M.S. Al-Shahry of the King Khalid University, in Abha, and A.M. Asiri of the King Abdul-Aziz University, in Jeddah, Saudi Arabia, have discovered a safe and biocompatible route for the synthesis of zinc oxide nano rods. Their route is based on the simple reaction of water and zinc powder at a relatively low temperature. "Since water is regarded as a benign solvent and non-toxic, the product (nanorods) could be used safely for biomedical and other applications," Shah says.

The approach is versatile for making different kinds of zinc oxide nanostructures and critically avoids the use of toxic organic solvents altogether. In the new approach, zinc powder is added to water, blasted with ultrasound for few minutes and then warmed at a temperature of 200 Celsius for 24 hours. The team has used the analytical techniques of X-ray and field emission electron microscopy to reveal the structure of the product.

The researchers found that they can produce uniform nanorods of 30 to 100 nanometers. They have also found that they can use pure water in what they say is a "simple and straightforward approach…suitable for large scale production." The proposed method is novel, rapid, economical, environmentally benign, and produces no pollutants, Shah adds.


Story Source:

The above story is based on materials provided by Inderscience Publishers. Note: Materials may be edited for content and length.


Journal Reference:

  1. Simple approach for the synthesis of zinc oxide nanorods. International journal of nanoparticles, 2009, 2, 87-94

Cite This Page:

Inderscience Publishers. "A Safe Approach To Nanotechnology." ScienceDaily. ScienceDaily, 24 August 2009. <www.sciencedaily.com/releases/2009/08/090819113451.htm>.
Inderscience Publishers. (2009, August 24). A Safe Approach To Nanotechnology. ScienceDaily. Retrieved March 27, 2015 from www.sciencedaily.com/releases/2009/08/090819113451.htm
Inderscience Publishers. "A Safe Approach To Nanotechnology." ScienceDaily. www.sciencedaily.com/releases/2009/08/090819113451.htm (accessed March 27, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Friday, March 27, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

House Ready to Pass Medicare Doc Bill

House Ready to Pass Medicare Doc Bill

AP (Mar. 26, 2015) In rare bipartisan harmony, congressional leaders pushed a $214 billion bill permanently blocking physician Medicare cuts toward House passage Thursday, moving lawmakers closer to resolving a problem that has plagued them for years. (March 26) Video provided by AP
Powered by NewsLook.com
HIV Outbreak Prompts Public Health Emergency In Indiana

HIV Outbreak Prompts Public Health Emergency In Indiana

Newsy (Mar. 26, 2015) Indiana Gov. Mike Pence says he will bring additional state resources to help stop the epidemic. Video provided by Newsy
Powered by NewsLook.com
Indiana Permits Needle Exchange as HIV Cases Skyrocket

Indiana Permits Needle Exchange as HIV Cases Skyrocket

Reuters - US Online Video (Mar. 26, 2015) Governor Mike Pence declares the recent HIV outbreak in rural Indiana a "public health emergency" and authorizes a short-term needle-exchange program. Rough Cut (no reporter narration) Video provided by Reuters
Powered by NewsLook.com
AAA: Distracted Driving a Serious Teen Problem

AAA: Distracted Driving a Serious Teen Problem

AP (Mar. 25, 2015) While distracted driving is not a new problem for teens, new research from the AAA Foundation for Traffic Safety says it&apos;s much more serious than previously thought. (March 25) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins