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Principles of Fluorescence Spectroscopy

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PRINCIPLES OF FLUORESCENCE SPECTROSCOPY 943<br />

Oxygen<br />

intersystem crossing, 816<br />

quenching by, 334<br />

Oxygen imaging<br />

literature references, 754<br />

Oxygen probes/sensors, 17<br />

blood gas measurement, 637<br />

camphorquinone, 672<br />

collisional quenching mechanism, 627–630<br />

lifetime-based, 628–629<br />

mechanism <strong>of</strong> oxygen selectivity, 529<br />

Oxygen quenching, 277, 278, 279<br />

diffusion coefficient, 293–294<br />

DMPC/cholesterol vesicles, 256–257, 293–294<br />

DNA-probes, 286<br />

intensity decays, 346<br />

lifetime-resolved anisotropy, 435–436<br />

membrane lipids, 293–294<br />

monellin, 432<br />

<strong>of</strong> phosphorescence, 317–318<br />

<strong>of</strong> proteins, 548–549<br />

quenching efficiency, 281<br />

transient effects, 346<br />

<strong>of</strong> tryptophan, 283–284<br />

Oxytocin, 178, 399<br />

P<br />

Papain, 584<br />

Parallel component, 776<br />

Parallax quenching in membranes, 296–298<br />

Parameter uncertainty, time-domain lifetime measurements, 134–135<br />

Parinaric acid, 72, 415<br />

Parvalbumin, 548, 599<br />

Patman, 217, 218<br />

membrane TRES, 245–246, 247, 248<br />

Pebble sensors, 655–656<br />

Pentagastrin, 590<br />

Pepsinogen, chicken, 597<br />

Peptides<br />

calmodulin binding, 372–373<br />

distance distributions, 479–481<br />

concentrations <strong>of</strong> D–A pairs and, 482<br />

cross-fitting data to exclude alternative models, 481–482<br />

donor decay without acceptor, 482<br />

energy transfer<br />

aggregation <strong>of</strong> β-amyloid peptides, 515–516<br />

membrane-spanning, 294–295<br />

rigid vs. flexible hexapeptide, 479–481<br />

Peroxides, quenching by, 279<br />

Perrin equation, 13, 366–370<br />

examples <strong>of</strong> Perrin plots, 369–370<br />

Perrin plots, 369–370, 453<br />

immunoglobulin fragment, 371–372<br />

molecular chaperonin cpn60 (GroEL), 371<br />

segmental motion effects, 436<br />

tRNA binding to tRNA synthetase, 370–371<br />

Perylene, 3, 4, 5, 10, 226, 391<br />

anisotropy, 427–428, 429, 434, 435<br />

rotational diffusion and, 422<br />

anisotropy decay, 429–430<br />

emission spectra, 7<br />

energy transfer, 450<br />

photoinduced electron energy transfer, 342–343<br />

quenchers <strong>of</strong>, 279<br />

pH, indicators/probes/sensors, 17, 175<br />

blood gases, optical detection <strong>of</strong>, 637<br />

energy-transfer mechanisms, 633–634<br />

fluorescein, 637–639<br />

GFP sensors, 655<br />

HPTS, 639–640<br />

literature references, 754<br />

metal–ligand complexes, 694<br />

pH sensors, 637–641<br />

SNAFL and SNARF, 640–641<br />

two-state, 637–641<br />

Phase angles, 99, 162<br />

frequency-domain anisotropy decays, 385, 386–387<br />

frequency-domain lifetime measurements, 189–191<br />

lifetime relationship to, 192–194<br />

phase-modulation resolution <strong>of</strong> emission spectra, 198<br />

solvent relaxation, 246<br />

Phase lifetimes, apparent, 191–192<br />

Phase modulation<br />

fluorescence equations, derivation <strong>of</strong>, 192–194<br />

lifetime relationship to, 192–194<br />

Phase-modulation fluorometry, 265–270<br />

apparent phase and modulation lifetimes, 266–267<br />

wavelength-dependent phase and modulation values,<br />

267–269<br />

Phase-modulation lifetimes<br />

HPLC, 175<br />

time-domain lifetime measurements, 98<br />

Phase-modulation spectra<br />

frequency-domain lifetime measurements, 194–196<br />

Phase-sensitive and phase-resolved emission spectra, 194–197<br />

fluorescence-lifetime imaging microscopy, 743<br />

phase-modulation resolution <strong>of</strong> emission spectra, 197–199<br />

from phase and modulation spectra, 198–199<br />

phase angle and modulation-based, 198<br />

phase or modulation lifetime-based, 198<br />

theory <strong>of</strong> phase-sensitive detection, 195–196<br />

examples <strong>of</strong> PSDF and phase suppression, 196–197<br />

high-frequency or low-frequency, 197<br />

Phase shift, 159<br />

Phase transition in membranes, 217–219<br />

Phenol<br />

excited-state reactions, 259–260<br />

intensity decays, 578<br />

quantum yield standards, 54<br />

Phenol red, 633<br />

Phenylalanine, 63<br />

calcium binding to calmodulin using phenylalanine and<br />

tyrosine, 545–546<br />

mutants <strong>of</strong> triosephosphate isomerase, 555, 556<br />

quantum yield standards, 54<br />

quenching <strong>of</strong> indole, 537<br />

resonance energy transfer in proteins,<br />

542, 543–545<br />

spectral properties, 530, 531<br />

tryptophan quenching <strong>of</strong>, 537, 592–593<br />

2-Phenylindole, 269, 610<br />

N-Phenyl-1-naphthylamine (NPN), 226, 227<br />

Phorbol myristoyl acetate (PMA), 746<br />

Phosphate, tyrosine absorption and emission, 534, 535<br />

Phosphatidic acid, energy transfer, 463–464

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