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Fujimoto K, Kawai K, Masuda S, Mori T, Aizawa T, Inuzuka T, Karatsu T, Sakamoto M, Yagai S, Sengoku T, Takahashi M, Yoda H. Triplet-Triplet Annihilation-Based Upconversion Sensitized by a Reverse Micellar Assembly of Amphiphilic Ruthenium Complexes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:9740-9746. [PMID: 31272152 DOI: 10.1021/acs.langmuir.9b01433] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We have developed a new photon upconversion (UC) system utilizing a new amphiphilic sensitizer 1a that comprises a hydrophilic ruthenium complex and a lipophilic bisanthracene appendage. At concentrations higher than 5 μM in toluene, the sensitizer 1a formed a reverse micellar assembly which facilitated the triplet sensitization of 9,10-diphenylanthracene (DPA) more efficiently than homogeneously dispersed solutions to enhance the UC efficiency up to 38.2%. The Stern-Volmer analyses revealed the stepwise triplet-triplet energy transfers (TTET): (1) intramicellar energy transfer from the ruthenium core to the bisanthracene surface and (2) diffusion-dependent energy transfer from the surface to DPA. On these bases, it can be assumed that the reverse micellar assemblies accelerate the former TTET process to enhance the UC efficiency.
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Affiliation(s)
- Keisuke Fujimoto
- Department of Applied Chemistry, Faculty of Engineering , Shizuoka University , 3-5-1 Johoku , Naka-ku, Hamamatsu 432-8561 , Japan
| | - Kyosuke Kawai
- Department of Applied Chemistry, Faculty of Engineering , Shizuoka University , 3-5-1 Johoku , Naka-ku, Hamamatsu 432-8561 , Japan
| | - Shota Masuda
- Department of Applied Chemistry, Faculty of Engineering , Shizuoka University , 3-5-1 Johoku , Naka-ku, Hamamatsu 432-8561 , Japan
| | - Toshihiro Mori
- Department of Applied Chemistry, Faculty of Engineering , Shizuoka University , 3-5-1 Johoku , Naka-ku, Hamamatsu 432-8561 , Japan
| | | | - Toshiyasu Inuzuka
- Division of Instrumental Analysis, Life Science Research Center , Gifu University , 1-1 Yanagido , Gifu 501-1193 , Japan
| | | | | | | | - Tetsuya Sengoku
- Department of Applied Chemistry, Faculty of Engineering , Shizuoka University , 3-5-1 Johoku , Naka-ku, Hamamatsu 432-8561 , Japan
| | - Masaki Takahashi
- Department of Applied Chemistry, Faculty of Engineering , Shizuoka University , 3-5-1 Johoku , Naka-ku, Hamamatsu 432-8561 , Japan
| | - Hidemi Yoda
- Department of Applied Chemistry, Faculty of Engineering , Shizuoka University , 3-5-1 Johoku , Naka-ku, Hamamatsu 432-8561 , Japan
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Gu Y, Lin D, Fei X, Chen Y, Wang C, Yang Q, Tang Y. Labeling of Microthrix parvicella in situ: A novel FRET probe based on bisoctyl rhodamine B. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 213:263-271. [PMID: 30703709 DOI: 10.1016/j.saa.2019.01.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 01/07/2019] [Accepted: 01/15/2019] [Indexed: 06/09/2023]
Abstract
Filamentous bacteria, particularly Microthrix parvicella, are mainly responsible for bulking or foaming of activated sludge. Based on the affinity of M. parvicella to the hydrophobic characteristics of long-chain fatty acids, a novel bisoctyl rhodamine B (BORB) and a novel fluorescence resonance energy transfer (FRET) complex probe were prepared herein to study their properties. When the FRET probe was used in in situ activated sludge, M. parvicella was clearly labeled at 20 nmol/L, which was a reduction of 50 times compared to that of the BORB (1 μmol/L) alone and 500 times compared to the carbazole-quinoline probe reported previously. Compared with fluorescence in situ hybridization, M. parvicella could be clearly labeled using BORB and the FRET probe in situ without requiring complicated pretreatments (i.e., shock and broken process, fixed sample, digestion, and lysozyme treatment). This study discusses the facile approach developed for labeling M. parvicella in early warning expansion, thereby inhibiting and controlling sludge bulking in situ.
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Affiliation(s)
- Yingchun Gu
- School of Science, Tianjin Engineering Technology Center of Chemical Wastewater Source Reduction and Recycling, Tianjin Chengjian University, Tianjin 300384, China
| | - Dayong Lin
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Xuening Fei
- School of Science, Tianjin Engineering Technology Center of Chemical Wastewater Source Reduction and Recycling, Tianjin Chengjian University, Tianjin 300384, China; School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China.
| | - Yongqiang Chen
- School of Science, Tianjin Engineering Technology Center of Chemical Wastewater Source Reduction and Recycling, Tianjin Chengjian University, Tianjin 300384, China
| | - Cuihong Wang
- School of Science, Tianjin Engineering Technology Center of Chemical Wastewater Source Reduction and Recycling, Tianjin Chengjian University, Tianjin 300384, China
| | - Qi Yang
- School of Science, Tianjin Engineering Technology Center of Chemical Wastewater Source Reduction and Recycling, Tianjin Chengjian University, Tianjin 300384, China
| | - Yalin Tang
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing 100190, China.
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Takahashi M, Numata Y, Ui M, Inuzuka T, Sengoku T, Yoda H. Gap-filling functionality of energy transmitter on cascade energy transfer in a unimolecular anthracene/perylene/rhodamine system. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.11.131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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