Rapid DNA readout system

The ability to amplify and detect specific DNA sequences is a powerful tool routinely used for a wide variety of applications, including disease diagnostics and mutant screening. With the development of isothermal DNA amplification methods, such as loop-mediated isothermal amplification (LAMP), the need for expensive laboratory thermocyclers for molecular-based diagnostics has now been eliminated. However, the requirement for low-lost, simple and equipment-free DNA readout methods remains.

Researchers at the University of Queensland have developed a rapid method to visualise amplified DNA in just one-step, without requiring any equipment. The readout system is made possible by a unique combination of suspended nanoparticles within a special DNA-detection solution.