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Sandberg E, Srambickal CV, Piguet J, Liu H, Widengren J. Local monitoring of photosensitizer transient states provides feedback for enhanced efficiency and targeting selectivity in photodynamic therapy. Sci Rep 2023; 13:16829. [PMID: 37803073 PMCID: PMC10558575 DOI: 10.1038/s41598-023-43625-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 09/26/2023] [Indexed: 10/08/2023] Open
Abstract
Photodynamic therapy (PDT) fundamentally relies on local generation of PDT precursor states in added photosensitizers (PS), particularly triplet and photo-radical states. Monitoring these states in situ can provide important feedback but is difficult in practice. The states are strongly influenced by local oxygenation, pH and redox conditions, often varying significantly at PDT treatment sites. To overcome this problem, we followed local PDT precursor state populations of PS compounds, via their fluorescence intensity response to systematically varied excitation light modulation. Thereby, we could demonstrate local monitoring of PDT precursor states of methylene blue (MB) and IRdye700DX (IR700), and determined their transitions rates under different oxygenation, pH and redox conditions. By fiber-optics, using one fiber for both excitation and fluorescence detection, the triplet and photo-radical state kinetics of locally applied MB and IR700 could then be monitored in a tissue sample. Finally, potassium iodide and ascorbate were added as possible PDT adjuvants, enhancing intersystem crossing and photoreduction, respectively, and their effects on the PDT precursor states of MB and IR700 could be locally monitored. Taken together, the presented procedure overcomes current methodological limitations and can offer feedback, guiding both excitation and PDT adjuvant application, and thereby more efficient and targeted PDT treatments.
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Affiliation(s)
- Elin Sandberg
- Experimental Biomolecular Physics, Dept. Applied Physics, Royal Institute of Technology (KTH), Albanova Univ Center, 106 91, Stockholm, Sweden
| | - Chinmaya V Srambickal
- Experimental Biomolecular Physics, Dept. Applied Physics, Royal Institute of Technology (KTH), Albanova Univ Center, 106 91, Stockholm, Sweden
| | - Joachim Piguet
- Experimental Biomolecular Physics, Dept. Applied Physics, Royal Institute of Technology (KTH), Albanova Univ Center, 106 91, Stockholm, Sweden
| | - Haichun Liu
- Experimental Biomolecular Physics, Dept. Applied Physics, Royal Institute of Technology (KTH), Albanova Univ Center, 106 91, Stockholm, Sweden
| | - Jerker Widengren
- Experimental Biomolecular Physics, Dept. Applied Physics, Royal Institute of Technology (KTH), Albanova Univ Center, 106 91, Stockholm, Sweden.
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Ovsyannikov DV, Zelentsov SV. Reactivity of Aliphatic and Aromatic Nitrocompounds in the Triplet State with Respect to Amines. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2020. [DOI: 10.1134/s0036024420080221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Muthuramalingam S, Velusamy M, Mayilmurugan R. Fixation and sequestration of carbon dioxide by copper(II) complexes. J CHEM SCI 2018. [DOI: 10.1007/s12039-018-1489-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fang H, Gao Y, Wang H, Yin H, Li G, An T. Photo-induced oxidative damage to dissolved free amino acids by the photosensitizer polycyclic musk tonalide: Transformation kinetics and mechanisms. WATER RESEARCH 2017; 115:339-346. [PMID: 28288313 DOI: 10.1016/j.watres.2017.03.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 03/03/2017] [Accepted: 03/04/2017] [Indexed: 06/06/2023]
Abstract
Residue from the polycyclic musks (PCMs) in household and personal care products may harm human beings through skin exposure. To understand the health effects of PCMs when exposed to sunlight at molecular level, both experimental and computational methods were employed to investigate the photosensitized oxidation performance of 19 natural amino acids, the most basic unit of life. Results showed that a typical PCM, tonalide, acts as a photosensitizer to significantly increase photo-induced oxidative damage to amino acids. Both common and exceptional transformation pathways occurred during the photosensitization damage of amino acids. Experimental tests further identified the different mechanisms involved. The common transformation pathway occurred through the electron transfer from α amino-group of amino acids, accompanying with the formation of O2•-. This pathway was controlled by the electronic density of N atom in α amino-group. The exceptional transformation pathway was identified only for five amino acids, mainly due to the reactions with reactive oxygen species, e.g. 1O2 and excited triplet state molecules. Additionally, tonalide photo-induced transformation products could further accelerate the photosensitization of all amino acids with the common pathway. This study may support the protection of human health, and suggests the possible need to further restrict polycyclic musks use.
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Affiliation(s)
- Hansun Fang
- State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Resources Utilization and Protection, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Yanpeng Gao
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Honghong Wang
- State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Resources Utilization and Protection, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hongliang Yin
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Guiying Li
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China
| | - Taicheng An
- State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Resources Utilization and Protection, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, 510006, China.
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Muthuramalingam S, Khamrang T, Velusamy M, Mayilmurugan R. Catalytic fixation of atmospheric carbon dioxide by copper(ii) complexes of bidentate ligands. Dalton Trans 2017; 46:16065-16076. [DOI: 10.1039/c7dt03062b] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The copper(ii) complexes of simple bidentate ligands have shown selective fixation and sequestration of atmospheric CO2. The fixation of CO2 proceeds via copper(i) species and geometrical interconversions and afforded CO32− bound complexes.
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Affiliation(s)
- Sethuraman Muthuramalingam
- Bioinorganic Chemistry Laboratory/Physical Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625021
- India
| | - Themmila Khamrang
- Department of Chemistry
- North Eastern Hill University
- Shillong 793022
- India
| | - Marappan Velusamy
- Department of Chemistry
- North Eastern Hill University
- Shillong 793022
- India
| | - Ramasamy Mayilmurugan
- Bioinorganic Chemistry Laboratory/Physical Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625021
- India
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Brigante M, Charbouillot T, Vione D, Mailhot G. Photochemistry of 1-Nitronaphthalene: A Potential Source of Singlet Oxygen and Radical Species in Atmospheric Waters. J Phys Chem A 2010; 114:2830-6. [DOI: 10.1021/jp910203y] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marcello Brigante
- Laboratoire de Photochimie Moléculaire et Macromoléculaire, Clermont Université, Université Blaise Pascal, BP 10448, F-63000, Clermont-Ferrand, France, Laboratoire de Photochimie Moléculaire et Macromoléculaire, CNRS, UMR 6505, F-63177 Aubière, France, and Dipartimento di Chimica Analitica, Università di Torino, Via P. Giuria 5, 10125 Torino, Italy
| | - Tiffany Charbouillot
- Laboratoire de Photochimie Moléculaire et Macromoléculaire, Clermont Université, Université Blaise Pascal, BP 10448, F-63000, Clermont-Ferrand, France, Laboratoire de Photochimie Moléculaire et Macromoléculaire, CNRS, UMR 6505, F-63177 Aubière, France, and Dipartimento di Chimica Analitica, Università di Torino, Via P. Giuria 5, 10125 Torino, Italy
| | - Davide Vione
- Laboratoire de Photochimie Moléculaire et Macromoléculaire, Clermont Université, Université Blaise Pascal, BP 10448, F-63000, Clermont-Ferrand, France, Laboratoire de Photochimie Moléculaire et Macromoléculaire, CNRS, UMR 6505, F-63177 Aubière, France, and Dipartimento di Chimica Analitica, Università di Torino, Via P. Giuria 5, 10125 Torino, Italy
| | - Gilles Mailhot
- Laboratoire de Photochimie Moléculaire et Macromoléculaire, Clermont Université, Université Blaise Pascal, BP 10448, F-63000, Clermont-Ferrand, France, Laboratoire de Photochimie Moléculaire et Macromoléculaire, CNRS, UMR 6505, F-63177 Aubière, France, and Dipartimento di Chimica Analitica, Università di Torino, Via P. Giuria 5, 10125 Torino, Italy
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Zhang X, Han JB, Li PF, Ji X, Zhang Z. Improved, Highly Efficient, and Green Synthesis of Bromofluorenones and Nitrofluorenones in Water. SYNTHETIC COMMUN 2009. [DOI: 10.1080/00397910902838904] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Xin Zhang
- a School of Chemistry and Chemical Engineering , Shanxi University , Taiyuan, China
| | - Jun-Bin Han
- a School of Chemistry and Chemical Engineering , Shanxi University , Taiyuan, China
| | - Peng-Fei Li
- a School of Chemistry and Chemical Engineering , Shanxi University , Taiyuan, China
| | - Xuan Ji
- a School of Chemistry and Chemical Engineering , Shanxi University , Taiyuan, China
| | - Zhao Zhang
- a School of Chemistry and Chemical Engineering , Shanxi University , Taiyuan, China
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