The laborious, uneconomical process of sequencing DNA molecules – a technology used to identify, diagnose, and perhaps find treatments for diseases – could become much faster and cheaper thanks to a new nanofabrication technique that exploits nano-sized air-gaps, or nanocracks, in electrically conductive materials.
A doctoral student in Micro and Nanosystems at KTH, Valentin Dubois, presented the new method in his dissertation, explaining that the results offer a potential alternative to existing optical DNA sequencing processes, which depend on bulky, costly equipment. The research was done in partnership with his supervisors.
Our method can, in principle, enable the development of DNA sequencers consisting of a simple USB-connected docking station, in a size equivalent to a small smartphone, costing less than €100. And anyone could use it without any special training. Hopefully, it will be possible to determine a person’s genetic makeup in less than an hour, instead of days, as is the case nowadays. Valentin Dubois
Nanogap electrodes, essentially a pair of electrodes having a nanometer-sized gap between them, are gaining attention as scaffolds to explore, sense, or harness the smallest stable structures located in nature: molecules. In his dissertation Crack-junctions: Linking the gap between nano electronics and giga manufacturing, Valentin Dubois explains how to apply the exceptional properties of nanocracks in electrically conductive materials as a new means of forming electrode pairs possessing nanometer-wide air gaps
Image Credit: Envato/ Alias studio
News This Week
Nearly a third of physicians will be sued at least once in their careers — most commonly for an error in diagnosis. Medical errors are also the third-leading cause of death in the United [...]
Inventors and scientists have been continuously working towards reducing the size of technological components. Room-sized computers to laptops that are slimmer than a pane of glass? It’s done. Huge bulky telephones to smartphones that [...]
You have witnessed a variety of nano-devices that were designed for tasks including delivering medicines within the body. All of them used to move in a variety of ways. However, the latest nano-device is [...]
Netra Rajesh is an undergraduate Engineering Science student specializing in Biomedical Systems Engineering. She is currently on her Professional Experience Year (PEY) at the Massachusetts Institute of Technology where her research lies at the [...]
Nearly half of the companies in Europe that call themselves AI start-ups don't in fact use artificial intelligence, a new report found. The research, published Tuesday by London-based venture capital firm MMC Ventures, found [...]