Delayed Light Emission in Green Plant Materials: Temperature-dependence and Quantum Yield.
نویسندگان
چکیده
ribonucleoprotein particles (see P. Ts'o, J. Bonner, and J. Vinograd, J. Biophys. Biochem. Cytology, 2, 451, 1956). 2 B. A. Askonas, J. L. Simkin, and T. S. Work, in The Structure of Nucleic Acids and Their Role in Protein Synthesis, ed. E. M. Crook (Cambridge: Cambridge University Press, 1957), p. 32. 3 G. E. Palade, J. Biophys. Biochem. Cytol., 1, 59, 1955. 4 P. C. Zamecnik and E. B. Keller, J. Biol. Chem., 209, 337, 1954. 6 E. B. Keller and P. C. Zamecnik, J. Biol. Chem., 221, 45, 1956. 6 P. C. Zameenik, M. L. Stephenson, and L. I. Hecht, these PROCEEDINGS, 44, 73, 1958. 7 P. N. Campbell, Advances in Cancer Research, 5, 97, 1958. 8 J. Kruh and H. Borsook, J. Biol. Chem., 220, 905, 1956. 9 M. Rabinovitz and M. E. Olson, Exptl. Cell Research, 10, 747, 1956. 10 M. Rabinovitz and M. E. Olson, Nature, 181, 1665, 1958. 11 H. Borsook, C. L. Deasy, A. J. Haagen-Smit, G. Keighley, and P. H. Lowy, J. Biol. Chem., 196, 669, 1952. 12 R. S. Schweet, F. C. Bovard, E. Allen, and E. Glassman, these PROCEEDINGS, 44, 173, 1958. 13 S. A. Kuby, L. Noda, and H. A. Lardy, J. Biol. Chem., 209, 191, 1954. 14 H. Borsook, E. H. Fischer, and G. Keighley, J. Biol. Chem., 229, 1059, 1957. 16 D. W. Allen, W. A. Schroeder, and J. Balog, J. Am. Chem. Soc., 80, 1628, 1958. 16 M. Clegg and W. A. Schroeder, personal communication. We are indebted to these authors for the use of their facilities and for information on the chromatography of rabbit hemoglobin prior to publication. 17 H. Sachs, J. Biol. Chem., 228, 23, 1957. 18 E. H. Allen, E. Glassman, and R. S. Schweet, unpublished data. 19 T. Peters, J. Biol. Chem., 229, 659 (1957). 20 J. W. Littlefield, E. B. Keller, J. Gross, and P. C. Zamecnik, J. Biol. Chem., 217, 111, 1955. 21 P. 0. Ts'o, J. Bonner, and H. Dintzis, Arch. Biochem. Biophys., 76, 225, 1958. 22 H. Dintzis, H. Borsook, and J. Vinograd, Meeting of the Biophysical Soc., Program and Abst. (Cambridge, Mass., 1958), p. 30. 23 R. S. Schweet and R. D. Owen, J. Cell. Comp. Physiol., 50, suppl. 1, 199, 1957. 24 J. Bonner, Progr. Chem. Org. Nat. Products, 16, 139, 1958. 21 M. B. Hoagland, P. C. Zamecnik, and M. L. Stephenson, Biochim. et Biophys. Acta, 24, 215, 1957. 2f P. Berg and E. J. Ofengand, these PROCEEDINGS, 44, 78, 1958.
منابع مشابه
Application of three-coordinate copper(I) complexes with halide ligands in organic light-emitting diodes that exhibit delayed fluorescence.
A series of three-coordinate copper(I) complexes (L(Me))CuX [X = Cl (1), Br (2), I (3)], (L(Et))CuBr (4), and (L(iPr))CuBr (5) [L(Me) = 1,2-bis[bis(2-methylphenyl)phosphino]benzene, L(Et) = 1,2-bis[bis(2-ethylphenyl)phosphino]benzene, and L(iPr) = 1,2-bis[bis(2-isopropylphenyl)phosphino]benzene] exhibit efficient blue-green emission in the solid state at ambient temperature with peak wavelength...
متن کاملTEMPERATURE DEPENDENCE OF DELAYED LIGHT EMISSION IN THE 6 to 340 MICROSECOND RANGE AFTER A SINGLE FLASH IN CHLOROPLASTS
The delayed light emission decay rate (up to 120~s) and the rise in chlorophyll a fluorescence yield (from 3 to 35 ys) in isolated chloroplasts from several species, following a saturating 10 ns flash, are temperature independent in the CL35"C range. However, delayed light in the 120-340ps range is temperature dependent. Arrhenius plots of the exponential decay constants are: (a) linear for let...
متن کاملQuantum current modeling in nano-transistors with a quantum dot
Carbon quantum dots (CQDs) serve as a new class of ‘zero dimensional’ nanomaterial’s in thecarbon class with sizes below 10 nm. As light emitting nanocrystals, QDs are assembled from semiconductormaterials, from the elements in the periodic groups of II-VI, III-V or IV-VI, mainly thanks to impacts of quantum confinement QDs have unique optical properties such as brighter, highly pho...
متن کاملEfficiency of True-Green Light Emitting Diodes: Non-Uniformity and Temperature Effects
External quantum efficiency of industrial-grade green InGaN light-emitting diodes (LEDs) has been measured in a wide range of operating currents at various temperatures from 13 K to 300 K. Unlike blue LEDs, the efficiency as a function of current is found to have a multi-peak character, which could not be fitted by a simple ABC-model. This observation correlated with splitting of LED emission s...
متن کاملInvestigation of the Effect of Recombination on Superluminescent Light-Emitting Diode Output Power Based on Nitride Pyramid Quantum Dots
In this article, the temperature behavior of output power of superluminescent light-emitting diode (SLED) by considering the effect of non-radiative recombination coefficient, non-radiative spontaneous emission coefficient and Auger recombination coefficients has been investigated. For this aim, GaN pyramidal quantum dots were used as the active region. The numerical method has been used to sol...
متن کاملThermoluminescence and temperature effects on delayed light emission (corrected for changes in quantum yield of fluorescence) in DCMU-treated algae.
( 1 ) The simultaneous measurements of delayed light emission (DLE) and chlorophyll (Chl) fluorescence yield in DCMU$ treated Chlorellu were made in the time range of I to I0 sec at various temperatures from 0 to 50°C. Similar measurements were made for DCMU treated thermophilic strain ofSynechococcus in the temperature range of 0 to 75°C. (2) Using the basic assumption that DLE is produced by ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Proceedings of the National Academy of Sciences of the United States of America
دوره 44 10 شماره
صفحات -
تاریخ انتشار 1958