Liquid nitrogen and liquid helium equipment Update Instruments Precision Syringe-Ram Hewlett-Packard 1050 Series HPLC with UV/visible, fluorescence and electrochemical detection with HP station integration software Hewlett-Packard 8453 general purpose UV/Visible spectrophotometer with software for biochemical analysis, thermostat-controlled cell holder and a Fisher refrigerated water circulator (Model 1006P) Beckman Paragon Electrophoresis System Microscopes: Zeiss fluorescence-microscope photometer system; Nikon phase-contrast; Bausch & Lomb Stereo-Zoom 5 Centrifuges: Beckman Airfuge ultra-centrifuge; Sorvall RC-5B refrigerated superspeed centrifuge Extruder (Lipex Biomembranes, Inc.) for preparation of liposomes UV-VIS Light Sources: 200 W Hg high pressure compact arc lamp (Oriel Model 6137); 300 W Xe high pressure compact arc lamp (Eimac Model VIX 300 UV) Monochromator (Bausch and Lomb 33-86 Series) Radiometer (Yellow Springs Instrument Model 65-A) for measurements of the fluence rate of the illuminating radiation Bio-Tek Instruments UV/visible microplate reader and fluorescence Varian 3700 gas chromatograph unit with thermal conductivity detection Jasco 710 spectropolarimeter ABI 310 genetic analyzer Insight II Molecular Modeling Environment including modules for molecular dynamics simulation, homology modeling and quantum mechanics engines. Millipore Milli-Q Academic water purification system Perkin Elmer GeneAmp 2400 PCR system ABI 310 genetic analyzer Innova Model 4230 incubator/ shaker AMBER 6.0 molecular modeling package and associated modules for force field calculation, energy minimization and molecular dynamics simulation Insight II molecular modeling environment including modules for molecular dynamics simulation, homology modeling and quantum mechanics engines