Topic: energy medicine jill blakeway

Quantum dots (QDs) are nano-scale semiconductor particles on the order of 2-10 nm in diameter. They possess electrical properties between these of bulk semi-conductors and individual molecules, in addition to optical characteristics that make them suitable for functions the place fluorescence is fascinating, reminiscent of medical imaging. Most QDs synthesized for medical imaging are within the type of CdSe(ZnS) core(shell) particles. CdSe QDs have been shown to possess optical properties superi...

A resonant circuit can only have low damping (excessive Q, narrow bandwidth) if it's a "closed" circuit, with no power dissipating elements. 108-109 However such a circuit doesn't produce radio waves. A resonant circuit with an antenna radiating radio waves (an "open" tuned circuit) loses energy quickly, giving it excessive damping (low Q, large bandwidth). There was a fundamental tradeoff between a circuit which produced persistent oscillations which had slender bandwidth, and one which radiate...