Not exact matches
They also utilized immunogold labeling — in which
gold particles are attached to antibodies that
bind to particular proteins in order to make them visible in electron microscopy — to show that filaments within the feathers were keratin.
A longer third strand of DNA
binds to both shorter sequences, linking the
gold particles together.
In the December 3 Angewandte Chemie International Edition, they describe how they separated the
gold particles by introducing a fourth strand that
binds to the third strand's loose end and unzips it from the
gold particles; reconnection simply meant introducing the naked third strand again.
One end of each probe was designed to
bind to the free end of the target anthrax DNA; the other end carried a tiny
gold particle.
Elaborate calculations by Dr. Matteo Farnesi Camellone showed that oxygen
binds at the interface between titanium dioxide and
gold particles.