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Since the first DNA extraction performed by Friedrich Miescher in 1869, scientists have made extraordinary progress in designing extraction methods that are more reliable, easier and faster to perform, more cost-effective and produce a higher yield. The classic liquid-liquid DNA extraction method involves the use of organic and inorganic reagents such as phenol-chloroform which pose a toxic threat to humans.
Preetha J. Shetty (Wed,) studied this question.