Let's make that an even 22 unique attributes/advantages QMC's GTQD's have over all others: [17] overcoming the 'photobleaching' effect [18] overcoming the 'Stokes Shift' limitations [19] overcoming the 'auger recombination' effect [20] customized arm lengths for specific apps [21] customized arm chemistry for electro & pharma-chemical reactive apps [22] multiple arms for a far greater series of effects & apps than spherical QD's *of note; our Giant TQD's are primarily for optoelectric apps...we still have other formulations that cover other apps i.e; delicate stress sensors. QMC is also rumored to have other techs in-the-works , involving individual nano-crystals for specific catalytic apps... QMC is no one-trick-poney , by any measure ;)