Function of nano wires in nano bio chips Nano bio chip (based on PhD in nano-microelectronics) (PhD in education and research)
Researcher and author: Dr. ( Afshin Rashid)
Note: Nano-biochips consist of an array of silicon nanowires that are densely packed on a small chip designed with nickel electrode leads and coated with silica. Nanowires disperse without damaging cells and are sensitive enough to measure small potential changes in fractions or millivolts.
Another feature of nano wires in nano bio chips is that they can separate the electrical signal measured by each nanowire separately. Nanowires. A wire is generally a structure that extends in one direction (longitudinal direction) and is very limited in the other two directions . An essential feature of these structures, which have two outputs, is electrical conductivity. Electrical charge transfer occurs by applying a difference in electrical potential at both ends of these structures and along their length. The fabrication of nanometer-sized wires is very interesting both technologically and scientifically, because they exhibit unusual properties in nanometer - sized dimensions . The ratio of length to diameter of nanowires is very high.
Silicon nanowires are most commonly used in nanobiochips, which are non-toxic and do not harm cells. This type of nanowire has shown its greatest application in the medical field, such as detecting the symptoms of cancer, stem cell growth, and so on . The human body, like a computer, must have sensors that can warn of external warning devices in the event of a problem or error or the presence of toxic substances , and try to fix it, just like a computer if you run the wrong path or a virus in When it is found, it gives an (ERROR) message. Produce flexible, long nanowires that vary in length from 1 to 100 nm or even millimeters and are about a thousand times thinner than human hair. The height, flexibility and strength of these nanowires Gives it special features. For example, being thin and long increases its surface area. Therefore, these structures can be used in the design of very fast and sensitive sensors. These nanowires have the ability to produce invisible ultraviolet rays, light enters the nanowire from one end and begins to shine from the other end. Nanowires pass this light efficiently without any loss. And in its path, if it encounters a pathogen or a toxic substance, the nanowire starts to shine and creates a very fast warning system , and this can detect the disease sooner and faster than any test.
Conclusion :
Nanobiochips consist of an array of silicon nanowires that are densely packed on a small chip designed with nickel electrode leads and coated with silica. Nanowires disperse without damaging cells and are sensitive enough to measure small potential changes in fractions or millivolts.
Researcher and author: Dr. ( Afshin Rashid)
PhD in Nano-Microelectronics