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Macromolecular Chemistry II – Prof. Dr. Andreas Greiner (Macromolecular Chemistry & Technology) & Prof. Dr. Seema Agarwal (Advanced Sustainable Polymers)

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Photobiologically Directed Assembly of Gold Nanoparticles

30.12.2020

Julia Dietler, Chen Liang, Saskia Frank, Ann-Kathrin Müller, Andreas Greiner, Andreas Möglich

Adv. Biology 2020, 2000179. https://doi.org/10.1002/adbi.202000179

In nature, photoreceptor proteins undergo molecular responses to light, that exhibit supreme fidelity in time and space and generally occur under mild reaction conditions. To unlock these traits for material science, the light‐induced homodimerization of light‐oxygen‐voltage (LOV) photoreceptors is leveraged to control the assembly of gold nanoparticles. Conjugated to genetically encodable LOV proteins, the nanoparticles are monodispersed in darkness but rapidly assemble into large aggregates upon blue‐light exposure. The work establishes a new modality for reaction control in macromolecular chemistry and thus augurs enhanced precision in space and time in diverse applications of gold nanoparticles.

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