This invention pertains to a surface ligand; preparation of the ligand; colloidal nanoparticle, such as quantum dot bearing one or more of the ligand; and a bioconjugate characterized by a nanoparticle bearing one or more of the ligand conjugated to a biomolecule. The vehicle driveline may further comprise a system for idling the auxiliary drive system. A source of electromagnetic radiation is placed at one of the focal points of the first reflector to produce radiation that converges at the second focal point of the first reflector. Fight and assault control sub-modes may be provided. Vaccines compositions and methods of for treating and preventing metastatic colorectal cancer or primary andor metastatic stomach or esophageal cancer are disclosed. Also disclosed are silver triangular bipyramids prepared by this method.