DNA purification is a step in the sample preparation workflow that removes enzymes, salts and other contaminants from lysed samples and PCR products prior to subsequent procedures like cloning or sequencing. It also eliminates unwanted PCR artifacts like nucleotides with no incorporation. DNA purification is a crucial stage in molecular biological research that requires careful planning in order to obtain top-quality, reliable results.

The process of purifying DNA is accomplished in several ways. The standard DNA isolation techniques comprise a variety of steps, such as leukocyte separation or red blood cell lysis to eliminate inhibitors https://mpsciences.com/2021/04/01/types-of-science-products-available/ of heme proteins of the PCR reaction. They also include deproteinization, RNAse treatment and precipitation with isopropanol and ethanol, and then finally, DNA elimination. These procedures require specialized equipment, like an electrophoresis and biosafety cabinets due the intercalating dyes used in electrophoresis on gels.

Other methods of DNA purification use spin columns or filters with 96 wells to filter particles that are contaminated by adhering to the surface. These methods can be quite time-consuming, particularly when working with large numbers of samples or when the columns need to be refilled manually with new reagents.

Dipsticks drastically reduce the number of steps involved in processing samples to just three. They bind nucleic acids using a waxy substance made of cellulose and subsequently release them in the presence of water. This approach is particularly useful in low-resource settings like remote field sites and teaching labs. Its simplicity and speed (30 seconds for each sample) makes it ideally suited for diagnostic molecular applications such as diagnostics as well as genotype screening and heterozygosity testing.