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Light-Harvesting in Biophotonic Optofluidic Microcavities via Whispering-Gallery Modes.
Yuan, Zhiyi; Cheng, Xin; Li, Tsungyu; Zhou, Yunke; Zhang, Yifan; Gong, Xuerui; Chang, Guo-En; Birowosuto, Muhammad D; Dang, Cuong; Chen, Yu-Cheng.
Afiliação
  • Yuan Z; School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
  • Cheng X; School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
  • Li T; School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
  • Zhou Y; School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
  • Zhang Y; School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
  • Gong X; School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
  • Chang GE; Department of Mechanical Engineering, and Advanced Institute of Manufacturing with High-Tech Innovations, National Chung Cheng University, Chiayi 62102, Taiwan.
  • Birowosuto MD; School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
  • Dang C; School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
  • Chen YC; School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
ACS Appl Mater Interfaces ; 13(31): 36909-36918, 2021 Aug 11.
Article em En | MEDLINE | ID: mdl-34310119
Phycobiliproteins are a class of light-harvesting fluorescent proteins existing in cyanobacteria and microalgae, which harvest light and convert it into electricity. Owing to recent demands on environmental-friendly and renewable apparatuses, phycobiliproteins have attracted substantial interest in bioenergy and sustainable devices. However, converting energy from biological materials remains challenging to date. Herein, we report a novel scheme to enhance biological light-harvesting through light-matter interactions at the biointerface of whispering-gallery modes (WGMs), where phycobiliproteins were employed as the active gain material. By exploiting microdroplets as a carrier for light-harvesting biomaterials, strong local electric field enhancement and photon confinement at the cavity interface resulted in significantly enhanced bio-photoelectricity. A threshold-like behavior was discovered in photocurrent enhancement and the WGM modulated fluorescence. Systematic studies of biologically produced photoelectricity and optical mode resonance were carried out to illustrate the impact of the cavity quality factor, structural geometry, and refractive indices. Finally, a biomimetic system was investigated by exploiting cascade energy transfer in phycobiliprotein assembly composed of three light-harvesting proteins. The key findings not only highlight the critical role of optical cavity in light-harvesting but also offer deep insights into light energy coupling in biomaterials.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Ficocianina / Ficoeritrina / Materiais Biomiméticos Tipo de estudo: Prognostic_studies Idioma: En Revista: ACS Appl Mater Interfaces Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Ficocianina / Ficoeritrina / Materiais Biomiméticos Tipo de estudo: Prognostic_studies Idioma: En Revista: ACS Appl Mater Interfaces Ano de publicação: 2021 Tipo de documento: Article