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Updated: Jun 15, 2026

An Integrated System to Remotely Trigger Intracellular Signal Transduction by Upconversion Nanoparticle-mediated Kinase Photoactivation

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Published on: August 30, 2017

Exciton-Diffusion Enhanced Energy Capture in an Integrated Nanoscale Platform.

Adrien Rousseau¹, Katherine H Richardson², Atanu Nandy¹

¹Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.

|April 10, 2025

Summary

This summary is machine-generated.

Researchers developed a novel biohybrid system for solar energy conversion using cross-species proteins. This platform enhances energy capture efficiency by enabling long-range exciton diffusion for sustainable power generation.

Keywords:

artificial photosynthesis biophotovoltaics energy transfer exciton diffusion protein networks renewable energy technologies

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Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Published on: August 23, 2012

Area of Science:

Bio-inspired nanotechnology
Sustainable energy conversion
Photosynthetic protein engineering

Background:

Biohybrid systems leverage natural designs for energy applications.
Previous systems were limited to same-species components, restricting functionality.
Optimized organization of protein components is key for efficient energy conversion.

Purpose of the Study:

To create a novel nanoscale platform for solar energy harvesting using cross-species proteins.
To demonstrate efficient energy transfer in a biohybrid system by overcoming species limitations.
To explore the potential of integrating diverse photosynthetic proteins for enhanced solar energy capture.

Main Methods:

Fabrication of nanoscale biomolecular films with antenna/reaction center proteins from different species.
Demonstration of long-range exciton diffusion through light-harvesting complex II (LHCII) from plants.
Quantification of exciton diffusivity using simulations and experimental data.
Measurement of energy transfer efficiency to reaction center-light-harvesting complex 1 (RC-LHC I) from bacteria.

Main Results:

Achieved long-range exciton diffusion (∼200 nm) in LHCII with a diffusivity of 3 × 10⁻² μm² ns⁻¹.
Demonstrated directional exciton diffusion induced by LHCII micropatterning.
Obtained ∼30% energy transfer efficiency to the purple bacteria RC-LHC I complex.
Showcased a hybrid energy harvesting system spanning the visible spectrum.

Conclusions:

The developed cross-species biohybrid platform enables efficient solar energy capture and conversion.
Integration of diverse photosynthetic proteins into biofilm platforms offers significant potential for sustainable energy solutions.
This approach overcomes previous limitations of same-species biohybrid systems, opening new avenues for research and development.