Profile: Attonuclei specializes in the research & development of bottom-up quantum dot's fabrication techniques for implementation in high value added products. The qualifications of the quantum dots we produce are approved scientifically by the Inspection and Characterization Center for nano-structures. Our labs routinely output quantum dots and nanomaterials to meet research, pilot-scale and full-scale production requirements. Our core competencies include the ability to perform cutting edge original research, and develop innovative pathways for the synthesis of a wide spectrum of elements. The key to the quantum dot is in the attometer (1 billionth of a nanometer) scale of electrons. Electrons occupy one of two bands in a material's crystal. By providing the proper stimuli, an electron, or perhaps more than one, can be encouraged to move from one band to the other. As it moves from one band (VB) to the other (CB), it creates a hole, which is positively charged. Together, the hole and the electron are referred to as an exciton. The use of quantum dots for biological imaging provides researchers and clinicians new & versatile approaches to a range of biomedical challenges. The resistance to photo-bleaching, narrow emission, high energy absorption, and single source excitation, are all strong reasons to make quantum dots superior fluorescence labeling agents, as opposed to organic dyes. Traditional heavy metal-containing quantum dots (CdSe, CdTe, PbS) have been explored for some time under experimental conditions in biomedical research, diagnostics, and drug discovery. The advent of heavy metal-free quantum dots opens up new horizons in the use of their unique spectral and colloidal properties for clinical applications, disease detection & therapeutics.