Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Francis K. Fong"'
Publikováno v:
Bioelectrochemistry and Bioenergetics. 23:301-310
Polarographic and wavelength-selected fluorescence excitation methods are employed in this study of Chl a aggregation in water containing trace amounts of acetone. These methods have been used for the characterization of a hitherto unreported Chl a a
Autor:
Francis K. Fong
Publikováno v:
Journal of the American Chemical Society. 96:7638-7646
Publikováno v:
The Journal of Chemical Physics. 82:758-764
A time‐correlated single photon counting technique, coupled with a red sensitive photomultiplier tube, was used to determine the singlet‐state lifetimes and energy transfer mechanisms of Chl a⋅H2O, (Chl a⋅H2O)2, and (Chl a⋅2H2O)n. The use o
Publikováno v:
Journal of Luminescence. :781-786
We report the preparation and characterization of a 700 nm absorbing (A700) chlorophyll a-water dimeric adduct species corresponding to the recently proposed primary molecular unit (Chl a · H 2 O 2 ) 2 in photosynthesis. We summarize the results of
Publikováno v:
The Journal of Chemical Physics. 60:1660-1667
Investigation of the optical properties of single crystals of LaCl3 containing 1% Pr3+ and traces of N d3+ impurity has revealed several upconversion processes in which laser excitation results in the emission of photons of higher energy than that of
Autor:
Angela Agostiano, Francis K. Fong
Publikováno v:
Bioelectrochemistry and Bioenergetics. 17:325-337
In this paper we describe the construction of an in vitro photoelectrochemical model of the Z scheme in green plant photosynthesis. PS I- and PS II-enriched particles from spinach chloroplasts are used in a three-compartment photoelectrochemical cell
Autor:
Francis K. Fong
Publikováno v:
Journal of Theoretical Biology. 46:407-420
In this paper we suggest a basic mechanism for the utilization of light quanta in photosynthesis. Through interactions between the lowest lying triplet state of the reaction-center chlorophylls and the first excited singlet state of the antenna chlor
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Bioenergetics. 936:171-178
Polarographic techniques are employed in the investigation of Chl a dihydrate formation and aggregation in binary solvent mixtures of water/acetone. The variation of the relative intensities of two observed polarographic peaks, at 2 −1100 and −12
Autor:
Karen A. Butcher, Francis K. Fong
Publikováno v:
Biochemical and Biophysical Research Communications. 150:399-404
It is demonstrated that carbon fixation in photosynthesis is regulated in two kinetically coupled pathways involving the specialized pair of non-equivalent, enzyme-bound glycerate-3-P (3-PGA) molecules obtained from ribulose 1,5-bisphosphate (RuBP) c
Autor:
Francis K. Fong
Publikováno v:
Applied Physics. 6:151-166
In this paper, the molecular details of the recently proposed energy upconversion theory of photosynthesis are reviewed. The primary light reactions are explained in terms of aC2 symmetrical structure of the reaction center involving a (Chl−H2O)2 a