Stopping Bacterial Infections Without Antibiotics
Clark School's Nanofactories Could Be Next Big Step in Antimicrobial Treatment
COLLEGE PARK, Md., Jan. 27 /PRNewswire-USNewswire/ -- New research at the A. James Clark School of Engineering could prevent bacterial infections using tiny biochemical machines—nanofactories—that can confuse bacteria and stop them from spreading, without the use of antibiotics.
A paper about the research is featured in the current issue of Nature Nanotechnology. "Engineered biological nanofactories trigger quorum sensing response in targeted bacteria," was authored by Clark School alumnus Rohan Fernandes (Ph.D. '08, bioengineering), graduate student Varnika Roy (molecular and cell biology), graduate student Hsuan-Chen Wu (bioengineering), and their advisor, William Bentley (professor and chair, Fischell Department of Bioengineering).
The group's work is an update on their original nanofactories, first developed in 2007. Those nanofactories made use of tiny magnetic bits to guide them to the infection site."This is a completely new, all-biological version," he says. "The new nanofactories are self-guided and targeted. We've demonstrated for the first time that they're capable of finding a specific kind of bacterium and inducing it to communicate, a much finer level of automation and control." The new nanofactories can tell the difference between bad (pathogenic) and good bacteria. For instance, our digestive tracts contain a certain level of good bacteria to help us digest food. The new nanofactories could target just the bad bacteria, without disrupting the levels of good bacteria in the digestive tract (a common side effect of many antibiotics). Nanofactories target the bacteria directly rather than traveling throughout the body, another advantage over traditional antibiotics. Bacterial cells talk to each other in a form of cell-to-cell communication known as quorum sensing. When the cells sense that they have reached a certain quantity, an infection could be triggered. The biological nanofactories developed at the Clark School can interrupt this communication, disrupting the actions of the cells and shutting down an infection. Alternatively, the nanofactories could trick the bacteria into sensing a quorum too early. Doing so would trigger the bacteria to try to form an infection before there are enough bacterial cells to do harm. This would prompt a natural immune system response capable of stopping them without the use of drugs.
Select the service that is right for you!COMPARE ALL SERVICES
Jim Cramer and Stephanie Link actively manage a real portfolio and reveal their money management tactics while giving advanced notice before every trade.
- $2.5+ million portfolio
- Large-cap and dividend focus
- Intraday trade alerts from Cramer
- Weekly roundups
Jim Cramer's protege, David Peltier, identifies the best of breed dividend stocks that will pay a reliable AND significant income stream.
- Diversified model portfolio of dividend stocks
- Alerts when market news affect the portfolio
- Bi-weekly updates with exact steps to take - BUY, HOLD, SELL
24/7 market commentary from Jim Cramer and 20+ veteran Wall Street gurus. Get access to the latest trading ideas on stocks, options, and ETFs as well as a real-time forum to see the pros exchanging their investment ideas.
- Jim Cramer + 20 Wall Street pros
- Intraday commentary & news
- Real-time trading forum
- Actionable trade ideas
All of Real Money, plus 15 more of Wall Street's sharpest minds delivering actionable trading ideas, a comprehensive look at the market, and fundamental and technical analysis.
- Real Money + Doug Kass + 15 more Wall Street Pros
- Intraday commentary & news
- Ultra-actionable trading ideas
Our options trading pros provide daily market commentary and over 100 monthly option trading ideas and strategies to help you become a well-seasoned trader.
- 100+ monthly options trading ideas
- Actionable options commentary & news
- Real-time trading community
- Options TV