Science and Technology
publicado em 13/04/2012 às 17h46:00
   Dê o seu voto:

Developed faster and cheaper test to diagnose tuberculosis

Nanotechnology-based system enables molecular diagnosis and identifies the presence of disease and resistance patterns

 
font size
A-
A+

Some pieces of information on this page may have been automatically translated. Makernews is not responsible for the irregularities resulting from these translations. When in doubt,      consult the original text.



Researchers in Portugal are reporting development of faster and cheaper test for the diagnosis of tuberculosis. The project was developed by scientists. Pedro Viana Baptista, Department of Life Sciences, Faculty of Science and Technology of Universidade Nova de Lisboa (UNL), and Miguel Viveiros, Institute of Hygiene and Tropical Medicine from the same institution.

The team found a system capable of detecting the causative agent of tuberculosis and the mutations most often involved in antibiotic resistance. "Within the problems of the disease, a major factor is the identification of combating infection, for diagnostic techniques available are too expensive or time consuming, moreover most of the concentrates of tuberculosis in countries without resources. In addition, the disease has developed resistance mechanisms that hinder their detection even more, "says Baptista.

In the study, titled "Nano TB nanodiagnostics XDRT is at the point-of-need", the researchers used

Nanotechnology a system for making a molecular diagnosis and identification of the presence or not of the body and has resistance pattern. "We used gold nanoparticles that are stable and have a ruby ​​red color when they detect the presence of DNA of the microorganism that causes tuberculosis and sequences associated with resistance to antibiotics," explains the researcher.

In the absence of micro nanoparticles are not stable and acquire a blue color.

Because they are required only small amounts of nanoparticles can reduce the cost of the new diagnostic tool, taking into account only the calculation of direct cost, the technique is ten times cheaper than those currently available.

The researchers note that the detection model is already in operation and validation phase. The expectation is that staff in some months the test is available in regions where they are the population most affected by the disease. "The test can be used in a decentralized manner, in hospitals, independent of all technologies," said Baptista, comparing the new diagnostic pregnancy tests that can be bought in pharmacies.

According to World Health Organisation (WHO), tuberculosis remains one of the most serious infectious diseases globally, with about 1.1 million deaths and 8.8 million new cases in 2010.

Source: Isaude.net
   Palavras-chave:   Test    Test faster    Cheaper test    Diagnosis    Disease    Tuberculosis    Nanotechnology   
  • Share this pageShare this page
  • Share this pageCorrect
  • ShareShare
  • AlertAlert
Reduced link: 
  • You are recommending this story: Developed faster and cheaper test to diagnose tuberculosis
  • Fill in the following form to send your recommendation to your friend:

  • You are suggesting a correction for this story: Developed faster and cheaper test to diagnose tuberculosis


Receba notícias do iSaúde no seu e-mail de acordo com os assuntos de seu interesse.
Seu nome:
Seu email:
Desejo receber um alerta com estes assuntos:
test    test faster    cheaper test    diagnosis    disease    tuberculosis    nanotechnology   
Comments:
Comment
Leave your comment
Close
(Required fields are marked with an *)

(Your email address will never be published or shared.)

Enter the letters and numbers below and click in the button "send"

  • Twitter iSaúde
advertising
Informe Saúde printed version

Recommend the portal
Close [X]
  • You are recommending this story: http://www.isaude.net
  • Fill in the following form to send your recommendation to your friend:

RSS news from the portal  iSaúde.net
Get the newsletter of the portal  iSaúde.net
Recommend the portal iSaúde.net
News from  iSaúde.net in your blog or website.
Get news on the subject of your interest.
© 2000-2011 www.isaude.net Todos os direitos reservados.