Millions of bacteria live form a ...
Bioengineering and a bit of art: the achievement of American scientists, the most obvious way shows current progress in genetic engineering - and in the future may find a number of applications in practice.
The fact that bacteria are very sensitive to external conditions, including the presence of various chemicals - including environmental pollutants. Or potentially pathogenic bacteria. This is their sensitivity is usually far exceeds the capabilities of artificial sensors.
Researchers from the group of Professor Jeff Hesti (Jeff Hasty) have designed a gene that makes normal bacteria Escherichia coli sensitive to arsenic. This gene is introduced into the genome of organisms with fluorescent protein genes. And if the receptor ensures the inclusion of the fluorescence with the appearance of arsenic, the chemical communication system of bacteria, so-called ... Millions of bacteria, thus, form a coherent ... Using them, the authors constructed a sort of matrix: they have submitted prototypes contain 500 and 13 thousand. ...
Hesti and his team are confident that in five years they will have to submit a full working version of the portable sensor. In the future, they can serve as excellent and very cheap, durable and reliable sensors for continuous monitoring of pollution - and perhaps ...
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