Quick technique for detecting water and food contamination by bacteria

Scientists announced in the field of technology, For their success in developing a new method that reveals the presence of bacteria in water, food and biological and medical samples, quickly.The researchers said the new system uses biomarkers and genetic material in bacteria, such as E. coli, to detect the presence of microbes in a precise and rapid manner, which could also expedite the detection of biological weapons used in military operations.
Experts said the current tests are ineffective in detecting germs. It takes a few days to show results, and their ability to distinguish between different bacterial strains is very limited, unlike the new technique, which results in one to three hours. Skill and professionalism to conduct and interpret the results.
"The precise identification of bacterial strains may be crucial to rapid diagnosis," said Dr. Yishikkel Kashi of the School of Food and Biotechnology and the Institute of Water Research, who developed the technique in collaboration with colleagues at the School of Natural Resources at the Virginia Institute of Technology and the Wayne University Nutrition Department. Effective treatment strategies. For example, doctors need several days to determine the patient's infection with urinary tract infection, which leads to permanent damage to the kidneys. With the new technique, the patient can receive treatment immediately within a few hours after the examination.
Experts believe the technique improves sensitivity, detection speed and identification of harmful bacteria such as E. coli, provides an ideal method for microbiological examination of contaminated food and water sources and protects against attacks using germ weapons.
During the development of the new system, the researchers found that DNA sequences contain thousands of uninterrupted sequential transitions, known as simple sequential repeats. Their distinct locations differ in each bacterial strain, giving them a special imprint that distinguishes them from others. Existing techniques available for genetic material analysis, identification of these bacterial fingerprints completely, forensic specialists also know the fingerprints at the crime scene.
The researchers pointed out that the identification of each type of bacteria on the computer, which allows for accurate and comprehensive comparison of all strains of living bacteria in the world, in an easy and fast, pointing out that this method is promising in the field of biology also, The differences, which slowly accumulate in the bacterial genome over time, study the patterns of variation and diversity between the breeds, to arrive at a more accurate view and deeper understanding of bacterial evolution.
The use of a bacterial identification card will help distinguish bacterial strains, which have different degrees of pathogenicity, and cause clinical symptoms, such as bacteria, which damage the kidneys, for example, or types of coronary tracts that are harmful to the heart, experts noted in the research report published by Genome Research.
The second step in the development of this system is the creation of automated tools and instruments that automatically record microbial DNA readings to produce rapid results, whether in laboratories, health centers or doctors' clinics.
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