A test-tube circuit made of DNA-based logic gates can calculate the square root of numbers up to 15, using DNA replication and sequence binding to conduct computations. It’s excruciatingly slow — a calculation can take up to 10 hours — so organic laptops are not exactly in our near future. But the real breakthrough is in how this system can enable control of chemical systems.
A new generation of e-nose uses a DNA scaffolding and molecular fluorescence to distinguish among various vapors, in a breakthrough that could make electronic sniffers more powerful and simpler to produce, according to researchers at Stanford University.
The method could conceivably detect anything from spoiled milk to explosives, the researchers say -- a major advancement over existing e-noses, which search for only a couple of specific molecules.
A new research paper brings new meaning to the joke that all science is just physics. A team of scientists at the National University of Singapore suggests that it is quantum entanglement that holds our DNA together.
It's hard to prove, but it would be a potentially explosive finding, as Technology Review explains.
By Rena Marie PacellaPosted 01.01.2005 at 1:55 pm 0 Comments
Smart Smile “Smile map” software introduced by Stony Brook University researchers in March detects
patterns of muscle movement when a person smiles, and uses the data to identify the person later on. Developers expect it to outperform conventional face-recognition programs, which calculate the
distances between major features.
Print View In February, MIT student Saul Griffith introduced a