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Electrodynamic interactions between biomolecules are of potential biological interest for signaling warranting investigation of their activation through various mechanisms in living systems. Here, using as model system a light harvesting…

Recently, a growing interest has been addressed to the electrical properties of bacteriorhodopsin (bR), a protein belonging to the transmembrane protein family. To take into account the structure-dependent nature of the current, in a…

Soft Condensed Matter · Physics 2015-03-06 E. Alfinito , L. Reggiani

Rapid environmental change and advances in data-driven analysis highlight the need not only to use computational tools, but also to foster understanding of the natural world and inspire creativity. Photosynthesis, the process that fuels…

Active fluids refer to the fluids that contain self-propelled particles such as bacteria or micro-algae, whose properties differ fundamentally from the passive fluids. Such particles often exhibit an intermittent motion, with high-motility…

Biological Physics · Physics 2020-03-05 Thomas Vourc'h , Julien Léopoldès , Hassan Peerhossaini

Here we discuss the feasibility of photosynthesis on Earth-like rocky planets in close orbit around ultra-cool red dwarf stars. Stars of this type have very limited emission in the \textit{photosynthetically active} region of the spectrum…

Earth and Planetary Astrophysics · Physics 2023-05-04 Christopher D. P. Duffy , Gregoire Canchon , Thomas J. Haworth , Edward Gillen , Samir Chitnavis , Conrad W. Mullineaux

The increasing demand for renewable energy is promoting technologies that integrate solar energy harvesting materials with the human living environment, such as building-integrated photovoltaics (BIPVs). This places requirements on…

Optics · Physics 2022-12-20 Zhenpeng Li , Sinan Li , Tao Ma

In this paper we consider dynamics of a molecular system subjected to external pumping by a light source. Within a completely quantum mechanical treatment, we derive a general formula, which enables to asses effects of different light…

Biological Physics · Physics 2012-01-30 Tomas Mancal , Leonas Valkunas

Photosynthetic microbes have evolved and successfully adapted to the ever-changing environmental conditions in complex microhabitats throughout almost all ecosystems on Earth. In the absence of light, they can sustain their biological…

Biological Physics · Physics 2024-07-16 Alexandros A. Fragkopoulos , Florian Böhme , Nicole Drewes , Oliver Bäumchen

The case of a non-biased (light excited) p-n photo-voltaic (PV) cell working in a closed circuit with a resistive load is investigated by means of irreversible thermodynamics in the linear range. To our knowledge, this is the first time…

Other Condensed Matter · Physics 2007-05-23 M. Salis , P. C. Ricci , F. Raga , F. Quarati

Conventional photocells suffer a fundamental efficiency threshold imposed by the principle of detailed balance, reflecting the fact that good absorbers must necessarily also be fast emitters. This limitation can be overcome by `parking' the…

Quantum Physics · Physics 2016-11-15 Amir Fruchtman , Rafael Gómez-Bombarelli , Brendon W. Lovett , Erik M. Gauger

Our planet is roughly closed to matter, but open to energy input from the sun. However, to harness this energy, organisms must transform matter from one chemical (redox) state to another. For example, photosynthetic organisms can capture…

Populations and Evolution · Quantitative Biology 2024-03-04 Akshit Goyal , Avi I. Flamholz , Alexander P. Petroff , Arvind Murugan

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…

Molecular polaritons are hybrid states of photonic and molecular character that form when molecules strongly interact with light. Strong coupling tunes energy levels and importantly, can modify molecular properties (e.g. photoreaction…

Chemical Physics · Physics 2023-02-14 Francesca Fassioli , Kyu Hyung Park , Sarah E. Bard , Gregory D. Scholes

In the offered review ordering received and published by domestic and foreign researchers of the experimental results showing the phenomenon of a photoluminescence in glasses and optical fiber, activated by bismuth is executed, and from…

Optics · Physics 2011-09-08 Valeriy E. Ogluzdin

Purple membranes from the archaeon Halobacterium salinarum consist of two-dimensional crystals of the light-driven proton pump bacteriorhodopsin, which convert photons into a proton gradient across the cell membrane. This functional feature…

Photosynthesis first step mechanism concerns the sunlight absorption and both negative and positive charges separation. Recent and important photosynthesis literature claims that this mechanism is quantum mechanics controlled, however…

Use of commercial growth chambers for study of biological processes involved in biomass growth and production pose certain limitations on the nature of studies that can be performed in them. Optimization of biomass rearing and production…

Quantitative Methods · Quantitative Biology 2020-04-16 Murali Padmanabha , Stefan Streif

Mechanisms to use nanoparticles to separate sunlight into photovoltaic useful range and thermally useful range to increase the efficiency of solar cells and to dissipate heat radiatively are discussed based upon lessons we learnt from…

Optics · Physics 2019-02-12 Julian Juhi-Lian Ting

Artificially reproducing the biological light reactions responsible for the remarkably efficient photon-to-charge conversion in photosynthetic complexes represents a new direction for the future development of photovoltaic devices. Here, we…

Quantum Physics · Physics 2013-12-25 C. Creatore , M. A. Parker , S. Emmott , A. W. Chin

With more than 5500 detected exoplanets, the search for life is entering a new era. Using life on Earth as our guide, we look beyond green landscapes to expand our ability to detect signs of surface life on other worlds. While oxygenic…

Earth and Planetary Astrophysics · Physics 2024-04-17 Ligia Fonseca Coelho , Lisa Kaltenegger , Stephen Zinder , William Philpot , Taylor L. Price , Trinity L. Hamilton