Photothermal Energy Conversion by Heme in Cytochrome c552: A Heme Protein-Based Molecular Heater DOI

Taro Watase,

Misao Mizuno, Yasuhisa Mizutani

et al.

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 30, 2024

The development of efficient photothermal converters is essential for thermal microscopy and the manipulation materials. Photoexcitation heme in proteins its subsequent nonradiative transition convert light energy into energy. converted released to surroundings, resulting heating solvent water. Here, we examined heat release by cytochrome c552 from Thermus thermophilus following conversion group protein. Upon irradiation with 532 nm light, Raman bands associated OH stretching mode water changed solutions but not protein-free buffer solutions. observed spectral changes closely resembled temperature-dependent were attributed a temperature increase due rise averaged over volume irradiated 125 mW was 5.1 K, which exceeds threshold activate thermosensitive cells. We discuss protein based on diffusion model excellent potential applications protein-based molecular heaters living

Language: Английский

Photothermal Energy Conversion by Heme in Cytochrome c552: A Heme Protein-Based Molecular Heater DOI

Taro Watase,

Misao Mizuno, Yasuhisa Mizutani

et al.

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 30, 2024

The development of efficient photothermal converters is essential for thermal microscopy and the manipulation materials. Photoexcitation heme in proteins its subsequent nonradiative transition convert light energy into energy. converted released to surroundings, resulting heating solvent water. Here, we examined heat release by cytochrome c552 from Thermus thermophilus following conversion group protein. Upon irradiation with 532 nm light, Raman bands associated OH stretching mode water changed solutions but not protein-free buffer solutions. observed spectral changes closely resembled temperature-dependent were attributed a temperature increase due rise averaged over volume irradiated 125 mW was 5.1 K, which exceeds threshold activate thermosensitive cells. We discuss protein based on diffusion model excellent potential applications protein-based molecular heaters living

Language: Английский

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