Stephen Andrews (artist) to his own experience of living with HIV. Andrews’ method of homemade colour separation evokes both the 19th-century painting technique of Pointillism: “in which small, distinct dots of pure color are applied in patterns to form an image”, and the Ben-Day dots of mechanical printing. Beyond these references, Andrews’ uses the technique to, at the same time, evoke the alchemy of vision and break its mechanics down. As a result, Andrews creates works that “hover at legibility.” “The pixilation or dot matrix completely obscures details, making specifics impossible to see. We can't grasp the full picture.“ The series of rubbed-crayon
DNA-functionalized quantum dots quantum dots allows researchers to code many different targets by color. Since quantum dots have high photostability and luminescence, researchers are using them to light up mRNA within cells to image gene expression. Amine-modified oligonucleotide probes attached to carboxyl groups on quantum dots show sequence-specific hybridization. These probes can also detect low expressing genes. This potentially allows researchers to understand when and where certain proteins are made. Self-assembled quantum dots form spontaneously under specific conditions during molecular beam epitaxy or another form of atomic deposition. This spontaneous formation is a consequence of the lattice-mismatch between the deposited semiconductor material and