Science and Technology
publicado em 22/08/2010 às 18h30:00
   Dê o seu voto:

Emory University acquires microscopes with innovative technology

All these developments combined into a single instrument will enhance the ability of scientists to visualize cells

 
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.



Emory University, USA, has acquired two transmission electron microscopes (TEMs), with capacity to provide high-resolution images of viruses, bacteria, artificial tissues and biomaterials. The technology is relatively new in the world. In the U.S., there are only two devices.

The centerpiece of the expansion mechanism is equipped with an energy filter, a camera of high technologies, in addition to the phase plates. All these developments combined into a single instrument will enhance the ability of scientists to visualize the cells, viruses, and even the molecular machines inside cells in their native states, without the need for chemical fixation and staining that alter its structure.

"With these tools we can analyze a wider range of biological specimens in 'resolutions macromolecular' two to four nanomilímetros. This level of resolution allows us to see that large conformational changes of macromolecules into whole cells and viruses undergo during normal operation," says Elizabeth R. Wright, professor of pediatrics at Emory.

Several decades ago, the development of phase contrast to optical microscopes allowed scientists to view living cells, which are normally transparent, without spot them.

Wright's research involves analysis of three-dimensional structure of viruses such as HIV-1 and paramyxovirus, bacteria and bacteriophages by cryo electron microscopy. Your goal is to capture images of viruses and bacteria and determine the structural changes that lead to its infectious nature. This information is combined with biochemical studies and drug development to develop new antibiotics.

Source: Isaude.net
   Palavras-chave:   Microscopy    Electron microscopy    High resolution    Phase plates   
  • Share this pageShare this page
  • Share this pageCorrect
  • ShareShare
  • AlertAlert
Reduced link: 
  • You are recommending this story: Emory University acquires microscopes with innovative technology
  • Fill in the following form to send your recommendation to your friend:

  • You are suggesting a correction for this story: Emory University acquires microscopes with innovative technology


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:
Microscopy    electron microscopy    high resolution    phase plates   
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.