scholarly journals Efficient light harvesting and photon sensing via engineered cooperative effects

2021 ◽  
Author(s):  
Francesco Mattiotti ◽  
Mohan Sarovar ◽  
Giulio Giuseppe Giusteri ◽  
Fausto Borgonovi ◽  
Giuseppe L Celardo
Keyword(s):  
Functional Role ◽  
Light Harvesting ◽  
Building Blocks ◽  
Cooperative Effects ◽  
Transfer Processes ◽  
Coherent Effects ◽  
Energy Science ◽  
Enhance Efficiency ◽  
Excitonic States ◽  
Light Capture

Abstract Efficient devices for light harvesting and photon sensing are fundamental building blocks of basic energy science and many essential technologies. Recent efforts have turned to biomimicry to design the next generation of light-capturing devices, partially fueled by an appreciation of the fantastic efficiency of the initial stages of natural photosynthetic systems at capturing photons. In such systems extended excitonic states are thought to play a fundamental functional role, inducing cooperative coherent effects, such as superabsorption of light and supertransfer of photoexcitations. Inspired by this observation, we design an artificial light-harvesting and photodetection device that maximally harnesses cooperative effects to enhance efficiency. The design relies on separating absorption and transfer processes (energetically and spatially) in order to overcome the fundamental obstacle to exploiting cooperative effects to enhance light capture: the enhanced emission processes that accompany superabsorption. This engineered separation of processes greatly improves the efficiency and the scalability of the system.

scholarly journals Microsecond and millisecond dynamics in the photosynthetic protein LHCSR1 observed by single-molecule correlation spectroscopy

2019 ◽  
Vol 116 (23) ◽  
pp. 11247-11252 ◽  
Author(s):  
Toru Kondo ◽  
Jesse B. Gordon ◽  
Alberta Pinnola ◽  
Luca Dall’Osto ◽  
Roberto Bassi ◽  
...  
Keyword(s):  
Correlation Function ◽  
Single Molecule ◽  
Conformational Changes ◽  
Protein Function ◽  
Light Harvesting ◽  
Building Blocks ◽  
Complex Stress ◽  
Correlation Spectroscopy ◽  
Light Harvesting Complex ◽  
Single Molecule Level

Biological systems are subjected to continuous environmental fluctuations, and therefore, flexibility in the structure and function of their protein building blocks is essential for survival. Protein dynamics are often local conformational changes, which allows multiple dynamical processes to occur simultaneously and rapidly in individual proteins. Experiments often average over these dynamics and their multiplicity, preventing identification of the molecular origin and impact on biological function. Green plants survive under high light by quenching excess energy, and Light-Harvesting Complex Stress Related 1 (LHCSR1) is the protein responsible for quenching in moss. Here, we expand an analysis of the correlation function of the fluorescence lifetime by improving the estimation of the lifetime states and by developing a multicomponent model correlation function, and we apply this analysis at the single-molecule level. Through these advances, we resolve previously hidden rapid dynamics, including multiple parallel processes. By applying this technique to LHCSR1, we identify and quantitate parallel dynamics on hundreds of microseconds and tens of milliseconds timescales, likely at two quenching sites within the protein. These sites are individually controlled in response to fluctuations in sunlight, which provides robust regulation of the light-harvesting machinery. Considering our results in combination with previous structural, spectroscopic, and computational data, we propose specific pigments that serve as the quenching sites. These findings, therefore, provide a mechanistic basis for quenching, illustrating the ability of this method to uncover protein function.

Comparative study of energy-transfer processes in several porphyrin-based artificial light-harvesting molecules

2005 ◽  
Vol 112 (1-4) ◽  
pp. 454-457 ◽  
Author(s):  
R. Hauschild ◽  
G. Riedel ◽  
J. Zeller ◽  
T.S. Balaban ◽  
V.I. Prokhorenko ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Comparative Study ◽  
Light Harvesting ◽  
Artificial Light ◽  
Transfer Processes

scholarly journals Communication: Broad manifold of excitonic states in light-harvesting complex 1 promotes efficient unidirectional energy transfer in vivo

2017 ◽  
Vol 147 (13) ◽  
pp. 131101 ◽  
Author(s):  
Sara H. Sohail ◽  
Peter D. Dahlberg ◽  
Marco A. Allodi ◽  
Sara C. Massey ◽  
Po-Chieh Ting ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Light Harvesting ◽  
Light Harvesting Complex ◽  
Excitonic States

scholarly journals Electronic coherence lifetimes of the Fenna–Matthews–Olson complex and light harvesting complex II

2019 ◽  
Vol 10 (45) ◽  
pp. 10503-10509 ◽  
Author(s):  
Shawn Irgen-Gioro ◽  
Karthik Gururangan ◽  
Rafael G. Saer ◽  
Robert E. Blankenship ◽  
Elad Harel
Keyword(s):  
Energy Transport ◽  
Light Harvesting ◽  
Light Harvesting Complex ◽  
Complex Ii ◽  
Efficient Energy ◽  
Naturally Occurring ◽  
Light Harvesting Complex Ii ◽  
Electronic Coherence ◽  
Excitonic States

The study of coherence between excitonic states in naturally occurring photosynthetic systems offers tantalizing prospects for uncovering mechanisms of efficient energy transport.

Water induced morphological transformation of a poly(aryl ether) dendron amphiphile: helical fibers to nanorods, as light-harvesting antenna systems

Nanoscale ◽  
2018 ◽  
Vol 10 (3) ◽  
pp. 1464-1473 ◽  
Author(s):  
Arunava Maity ◽  
Ananta Dey ◽  
Monalisa Gangopadhyay ◽  
Amitava Das
Keyword(s):  
Self Assembly ◽  
Light Harvesting ◽  
Building Blocks ◽  
Aryl Ether ◽  
Morphological Transformation ◽  
Molecular Building Blocks ◽  
Convenient Approach ◽  
Light Harvesting Antenna ◽  
Antenna Systems

Self-assembly of suitable molecular building blocks is an efficient and convenient approach to generate nanomaterials with various morphologies and functions.

Synthesis of perylene–porphyrin building blocks and rod-like oligomers for light-harvesting applications

2002 ◽  
Vol 12 (12) ◽  
pp. 3438-3451 ◽  
Author(s):  
Robert S. Loewe ◽  
Kin-ya Tomizaki ◽  
W. Justin Youngblood ◽  
Zhishan Bo ◽  
Jonathan S. Lindsey
Keyword(s):  
Light Harvesting ◽  
Building Blocks
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