Introduction - What is Spintronics? Spintronics is Spin based electronics. The idea is to use the electron's spin, as well as it's charge. Electrons can spin in two directions (Spin-Up, Spin-Down, which is actually clockwise and anti-clockwise), and the spin is detectable as weak magnetic energy.
Viral Transduction. Transduction is the insertion of foreign DNA into a cell via a virus (See Reference 1 and 2). Viruses are made of a protein coat that houses DNA within. Viruses can bind to living cells and inject their DNA.Or, viruses can push into the host as a membrane-bound vesicle, before releasing their DNA inside the host. The use of recombinant DNA technology can insert foreign DNA into host cells that are then purposefully infected with viruses.ells have membranes that prevent DNA from simply diffusing in or out. This is the initial barrier that scientists must overcome in order to insert foreign DNA into a cell. The four ways of accomplishing this goal are transduction, transformation, transfection and injection.
Plasmids have been key to the development of molecular biotechnology. They act as delivery vehicles, or vectors, to introduce foreign DNA into bacteria. Using plasmids for DNA delivery began in the 1970s when DNA from other organisms was first âcut and pastedâ into specific sites within the plasmid DNA.acterial DNA â a circular chromosome plus plasmids. The DNA of most bacteria is contained in a single circular molecule, called the bacterial chromosome. The chromosome, along with several proteins and RNA molecules, forms an irregularly shaped structure called the nucleoid.