Penn State Develops DNA-Based Low-Power Memory Device

Penn State researchers have developed a groundbreaking memory device that uses synthetic DNA and crystalline perovskite, a semiconductor, to store data with significantly lower power consumption. This innovation was detailed in a study published in Advanced Functional Materials and is the subject of a patent application.

The device, known as a memristor, operates with minimal energy and preserves information even when the power is off. Unlike traditional resistors, memristors can remember the direction of previous electrical currents, allowing for simultaneous data storage and processing, akin to brain neuron functions. This could enhance data processing capabilities in artificial intelligence and other technologies.

To construct the device, the team integrated silver-doped synthetic DNA with perovskite films. This combination allows the DNA to conduct electricity and maintain structural precision at small scales. The synthetic DNA, unlike natural DNA, can be engineered to specific sequences and lengths, providing better control over electrical conductivity and structural organization.

The bio-hybrid system demonstrated exceptional stability, operating consistently at high temperatures and maintaining functionality at room temperature for over six weeks. It also consumes only one-tenth of the power required by existing memory storage technologies, making it a promising candidate for future low-power electronics.

The researchers emphasize the potential of their device in neuromorphic computing, which mimics human brain functions, as demand for efficient data processing grows with the rise of AI. The ability to pack vast amounts of data into a small space while using minimal energy is a key advantage of this technology.