Triplet–triplet annihilation-based photon-upconversion to broaden the wavelength spectrum for photobiocatalysis
- 관리정보기술 faculty
- 등재 SCIE, SCOPUS
- OA유형 Green Published, gold
- 발행기관 Nature Research
- 발행년도 2022
- URI http://www.dcollection.net/handler/ewha/000000193142
- 본문언어 영어
- Published As https://doi.org/10.1038/s41598-022-13406-8
- PubMed https://pubmed.ncbi.nlm.nih.gov/35672399
초록/요약
Photobiocatalysis is a growing field of biocatalysis. Especially light-driven enzyme catalysis has contributed significantly to expanding the scope of synthetic organic chemistry. However, photoenzymes usually utilise a rather narrow wavelength range of visible (sun)light. Triplet–triplet annihilation-based upconversion (TTA-UC) of long wavelength light to shorter wavelength light may broaden the wavelength range. To demonstrate the feasibility of light upconversion we prepared TTA-UC poly(styrene) (PS) nanoparticles doped with platinum(II) octaethylporphyrin (PtOEP) photosensitizer and 9,10-diphenylanthracene (DPA) annihilator (PtOEP:DPA@PS) for application in aqueous solutions. Photoexcitation of PtOEP:DPA@PS nanoparticles with 550 nm light led to upconverted emission of DPA 418 nm. The TTA-UC emission could photoactivate flavin-dependent photodecarboxylases with a high energy transfer efficiency. This allowed the photodecarboxylase from Chlorella variabilis NC64A to catalyse the decarboxylation of fatty acids into long chain secondary alcohols under green light (λ = 550 nm). © 2022, The Author(s).
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