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DNA sensor for quick Streptococcus pyogenes pathogen detection
August 15 , 2017
2657 days
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- An ultrasensitive DNA sensor that can detect Streptococcus pyogenes, a bacterium which causes a wide range of diseases in about 30 minutes has been developed. The DNA chip is highly specific device for S. pyogenes. The conventional method of identification takes 18-24 hours and the basic culture test does not specifically help distinguish S. pyogenes.
- From mild skin and throat infections to life-threatening toxic shock syndrome, S. pyogenes infections affect 700 million people every year. If not treated during early stages of the infection, S. pyogenes can even lead to rheumatic heart disease (heart valves damage).
- The sensor was developed by scientists from CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB) and National Centre for Disease Control (NCDC) Delhi, and the results were published in the International Journal of Biological Macromolecules.
- The DNA chip based sensor consists of a carbon electrode embedded with gold nanoparticles.
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