xt731z41v88t https://exploreuk.uky.edu/dips/xt731z41v88t/data/mets.xml University of Kentucky University of Kentucky Chemistry Department 19820430 A brochure for the Naff Symposium, an event hosted by the University of Kentucky Chemistry Department supported by the Anna S. Naff Endowment Fund. This brochure belongs to the University of Kentucky Chemistry Department Records collection, accession number 2014ua075. archival material  English University of Kentucky Chemistry Department Contact the Special Collections Research Center for information regarding rights and use of this collection. University of Kentucky Chemistry Department Naff Symposium brochures Eighth Annual Symposium on Chemistry and Molecular Biology: "Artificial Photosynthesis" text Eighth Annual Symposium on Chemistry and Molecular Biology: "Artificial Photosynthesis" 1982 2017 true xt731z41v88t section xt731z41v88t *
1982 PROGRAM 3 (<9 9:
-1 . .
W 8 2; 5 Eighth Annual SymPOSlum on
.3 ‘< g
5 9~ 3
. 3: m
A:”' 1015 m i ac ff B k 89 0 Ch ’ d
8.30 Coffee—Chemistry-Physics - scuss on an 0 cc rea m E g emlstl'y an
Rm. 137 O n 3
10:45 CHLOROPHYLL FUNCTION IN 9‘ Q— (7; Molecular Biolo
9:00 Welcome and Introduction NATURAL AND ARTIFICIAL 8 5 9y
9:15 ARTIFICIAL Dr. Joseph J. Katz
PHOTOSYNTHESIS: Chlorophyll is the indispensable agent . .
SYNTHETIC CHLOROPLASTS for light energy conversion in green plant eStabllShed m the memory Of
and bacterial photosynthesis, and a de- Anna S. Naff
tailed understanding of how it functions
D" Melvin Calvin in natural photosynthesis would do much
Knowledge of the mechanism of pri- to facilitate the development of artificial __
mary energy capture and conversion by photosynthesis. The chlorophyll mole-
green plant chloroplasts is used to guide cule, it now becomes evident from vari- ARTIFICIAL
the design of artificial systems for conver- ous lines of physical investigation, has an
sion and storage Of solar energy. Ah es- unusual combination of coordination
sential function to be imitated is the con- properties. These coordination interac- pHOTOSYNTHESIs
version of absorbed light energy by tions between chlorophyll and other
charge separation in an oxidation-reduc- chlorophyll molecules and with various
tion reaction, and the prevention of back chloroplast components now make it pos-
reaction between the charged oxidized sible to consider Specific molecular S eakers
electron donor and reduced electron ac- structures for the different species of P
ceptor. We have achieved this goal in two chlorophyll present in chloroplasts and
ways: (1) The phototransfer of an electron bacterial chromatophores. Model sys-
across an insulating lipid layer between terns can now be fashioned in the labora-
tWO separated aqueous phases, one con- tory that mimic many of the features of PROF. MELVlN CALVIN
taining the donor and the other the accep- natural photoreactive chlorophyll, and
tor. (2) The use of small particles, either rudimentary antenna-reaction centers for DR JOSEPH J KATZ
"Pld vesicles or silica particles, With a the study of energy transfer are also now
high negative surface charge density. The available, These models, and the ways in .
sensitizer adheres to the particles, where- which they can contribute to the under-
as the negatively charged reduced accep- standing of natural photosynthesis, will
tor is repelled into the continuous phase be described. -
after electron transfer. The separation of April 30’ 1982 ,
products thus achieved has led to a great Department Of ChemIStry
increase in quantum yield, as high as 2 University of Kentucky
30%. Ways are now being sought to use 5 g L . K k 40506
catalytic reactions (such as occur in na- e g. C :1 exmgton, entuc y
ture) to bring about the oxidation and re- g “5* in %
duction of water to hydrogen and oxygen. 7" 5’ 0:3 § 5
% E".
‘< o
_ :l

 O 0
Eighth Annual Symposnum on
O 0
Chemistry and Molecular Blology
established in the memory of Anna S. Haff
April 30, 1982
Chemistry-Physics Building—Rm. 139
Department of Chemistry University of Kentucky
- 3 , W
M,,;,~./6v Jam”; 5525- \w . . ---K-:r. . . " Wrr'W’r
geese. , . -
ifinil’vifigggzfi :3:
Prof. Melvin Calvin Dr. Joseph J. Katz
lnstitute for Biodynamics,
University of California
Artificial Photosynthesis:
Synthetic Chloroplasts '
Argonne National Laboratory
Chlorophyll Function in Natural
And Artificial Photosynthesis
Parking available at Commonwealth Stadium on Cooper Drive. Shuttle buses run to the main campus. For addi-
tional information, contact Prof. Laren M. Tolbert, Dept. of Chemistry, 606-257-4741.
Symposium supported by the Anna S. Naff Endowment Fund.