Release date: 2009-08-19
In a groundbreaking study published in the Proceedings of the National Academy of Sciences, U.S. scientists have developed a bio-nanoelectronic device that integrates biological components using lipid-film nanowires. This innovation not only enhances diagnostic tools but also has the potential to significantly advance nerve repair technologies.
Unlike traditional electronic devices that rely on electric fields and currents for information transmission, biological systems use membrane receptors to control signal flow, which can operate at speeds far exceeding even the most advanced computers. For instance, converting sound waves into neural signals is a complex process, yet the human ear accomplishes it effortlessly. By merging biological systems with electronic components, researchers aim to boost the performance of devices like computers.
The team focused on lipid membranes, which are naturally present in cells and form a stable, self-repairing barrier. These membranes are impermeable to ions and small molecules, while also hosting various proteins that enable cellular recognition, transport, and signaling. To create their device, the researchers wrapped nanowires with a two-layer lipid film, forming a protective layer that effectively binds the lipid membrane to the nanowires.
With this bio-nanoelectronic system, scientists can monitor specific signal transmissions and regulate membrane proteins, allowing for precise intervention in biological processes. This development opens new possibilities for improving the efficiency and functionality of electronic circuits by integrating them with living systems. The technology could lead to more sensitive diagnostics, smarter medical implants, and even next-generation computing systems that mimic biological functions. Shanghai Medical Device Industry Association
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