Photoactivators comprise a photoactive moiety and a hydrophilic moiety. The photoactivators preferably comprise less than about 35%, by weight of the photoactivator, of the photoactive moiety. The photoactivators can be activated to a photo-excited state by excitation with incident radiation of a wavelength between about 350nm and 750nm, preferably between about 350 nm and about 420 nm. The photoactivators further encompass those having certain chemical formulations.
