PROGRAMMABLE BIOMIMETIC PHOTONIC MATERIALS
OUR RESEARCH
An EPSRC Programme Grant
The absorption of light by molecules leads to the formation of molecular excited states, consisting of electron-hole pairs, called excitons. Control of excitons is essential for many new and emerging technologies identified in the Government’s Industrial Strategy as being vital to the economic success of the UK, including solar energy capture, photocatalysis, quantum technologies, and the design of diagnostic devices for personalised medicine.
The goal of our five year, £7.25M programme is to explore an entirely new approach to the design of molecular photonic materials that could extend excitation transfer distances from nm to cm.
We are grateful to the Engineering and Physical Sciences Research Council (EPSRC) for funding our research.
In a molecular photonic breadboard, synthetic biological antenna complexes (like the tetrahelical proteins shown here) organise pigments in nanoscale regions of space, thus controlling excitonic coupling. Incorporation of a plasmon mode with an associated field (E) enables polaritonic control of energy transfer, and manipulation of ultra-fast non-local couplings (red arrow). Large numbers of such plexcitonic complexes can be assembled to form macroscopically extended films.
ASC San Diego - March 2025
Biomimetic and bioinspired design and assembly of nanostructures, materials and devices
A Division of Colloid and Surface Chemistry Symposium to be held at the Spring 2025 ACS National Meeting
Symposium organisers: Graham Leggett, University of Sheffield and Stefan Zauscher, Duke University
Nature offers a rich source of inspiration for the design and assembly of nanostructures, materials, and devices, where interfaces play a central role in their function. In biology, cellular membranes are equipped with pumps, gates, motors, and other functional elements. Compartmentalized systems, such as mitochondria and the chromatophore vesicles of photosynthetic bacteria, are crucial in regulating energy flow. While evolution provides abundant inspiration for material and device design, natural systems aim to grow and replicate, whereas engineered materials and devices are designed to meet human needs. The fundamental challenge lies in drawing inspiration from natural systems and adapting it for anthropomorphic purposes. Simply copying biological systems will only replicate biology, but successfully integrating abiotic materials, and mechanisms with biologically inspired design concepts offers the potential to transform the engineering of materials and devices.
Deadline for abstracts: 30/9/24
NEWS
SUMMER 2024
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Postdoctoral Turner prize winner - Evelin Csanyi
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Faculty of Science Postdoctoral prize winner - Ed Johnson
PUBLICATIONS
SUMMER 2024