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Lu F, Li L, Zhang M, Yu C, Pan Y, Cheng F, Hu W, Lu X, Wang Q, Fan Q. Confined semiconducting polymers with boosted NIR light-triggered H 2O 2 production for hypoxia-tolerant persistent photodynamic therapy. Chem Sci 2024; 15:12086-12097. [PMID: 39092116 PMCID: PMC11290442 DOI: 10.1039/d4sc01609b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 06/11/2024] [Indexed: 08/04/2024] Open
Abstract
Hypoxia featured in malignant tumors and the short lifespan of photo-induced reactive oxygen species (ROS) are two major issues that limit the efficiency of photodynamic therapy (PDT) in oncotherapy. Developing efficient type-I photosensitizers with long-term ˙OH generation ability provides a possible solution. Herein, a semiconducting polymer-based photosensitizer PCPDTBT was found to generate 1O2, ˙OH, and H2O2 through type-I/II PDT paths. After encapsulation within a mesoporous silica matrix, the NIR-II fluorescence and ROS generation are enhanced by 3-4 times compared with the traditional phase transfer method, which can be attributed to the excited-state lifetime being prolonged by one order of magnitude, resulting from restricted nonradiative decay channels, as confirmed by femtosecond spectroscopy. Notably, H2O2 production reaches 15.8 μM min-1 under a 730 nm laser (80 mW cm-2). Further adsorption of Fe2+ ions on mesoporous silica not only improves the loading capacity of the chemotherapy drug doxorubicin but also triggers a Fenton reaction with photo-generated H2O2 in situ to produce ˙OH continuously after the termination of laser irradiation. Thus, semiconducting polymer-based nanocomposites enables NIR-II fluorescence imaging guided persistent PDT under hypoxic conditions. This work provides a promising paradigm to fabricate persistent photodynamic therapy platforms for hypoxia-tolerant phototheranostics.
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Affiliation(s)
- Feng Lu
- State Key Laboratory of Organic Electronics and Information Displays, Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications Nanjing 210023 China
| | - Lili Li
- State Key Laboratory of Organic Electronics and Information Displays, Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications Nanjing 210023 China
| | - Meng Zhang
- State Key Laboratory of Organic Electronics and Information Displays, Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications Nanjing 210023 China
| | - Chengwu Yu
- State Key Laboratory of Organic Electronics and Information Displays, Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications Nanjing 210023 China
| | - Yonghui Pan
- State Key Laboratory of Organic Electronics and Information Displays, Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications Nanjing 210023 China
| | - Fangfang Cheng
- School of Pharmacy, Nanjing University of Chinese Medicine Nanjing 210023 China
| | - Wenbo Hu
- Institute of Flexible Electronics (IFE), Northwestern Polytechnical University Xi'an 710072 China
| | - Xiaomei Lu
- Institute of Advanced Materials (IAM) & School of Flexible Electronics (Future Technologies), Nanjing Tech University Nanjing 211816 China
- Zhengzhou Institute of Biomedical Engineering and Technology Zhengzhou 450001 China
| | - Qi Wang
- State Key Laboratory of Organic Electronics and Information Displays, Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications Nanjing 210023 China
| | - Quli Fan
- State Key Laboratory of Organic Electronics and Information Displays, Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications Nanjing 210023 China
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Hosseini FS, Naghavi N, Sazgarnia A. A physicochemical model of X-ray induced photodynamic therapy (X-PDT) with an emphasis on tissue oxygen concentration and oxygenation. Sci Rep 2023; 13:17882. [PMID: 37857727 PMCID: PMC10587104 DOI: 10.1038/s41598-023-44734-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 10/11/2023] [Indexed: 10/21/2023] Open
Abstract
X-PDT is one of the novel cancer treatment approaches that uses high penetration X-ray radiation to activate photosensitizers (PSs) placed in deep seated tumors. After PS activation, some reactive oxygen species (ROS) like singlet oxygen (1O2) are produced that are very toxic for adjacent cells. Efficiency of X-PDT depends on 1O2 quantum yield as well as X-ray mortality rate. Despite many studies have been modeled X-PDT, little is known about the investigation of tissue oxygen content in treatment outcome. In the present study, we predicted X-PDT efficiency through a feedback of physiological parameters of tumor microenvironment includes tissue oxygen and oxygenation properties. The introduced physicochemical model of X-PDT estimates 1O2 production in a vascularized and non-vascularized tumor under different tissue oxygen levels to predict cell death probability in tumor and adjacent normal tissue. The results emphasized the importance of molecular oxygen and the presence of a vascular network in predicting X-PDT efficiency.
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Affiliation(s)
- Farideh S Hosseini
- Department of Electrical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Nadia Naghavi
- Department of Electrical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Ameneh Sazgarnia
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Physics, Faculty of Medicine, University of Medical Sciences, Mashhad, Iran
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Li L, Kou M, Wang Y, Qin F, Zhao H, Zhang Z. Experimental Verification of the Accuracy of Oxygen-Varying Correlated Fluorescence for Determining the Quenching Constant KSV. J Phys Chem B 2023; 127:7730-7734. [PMID: 37651835 DOI: 10.1021/acs.jpcb.3c03944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
The oxygen-varying correlated fluorescence provides an effective strategy to gain the quenching constant KSV for a non-phosphorescent system. Owing to the absence of detectable phosphorescence emission in general optical spectroscopy, the facticity of this method has never been verified. Here, the correct way to determine KSV by oxygen-varying correlated fluorescence was systematically studied in detail. We selected gadolinium protoporphyrin IX (Gd-PpIX) to establish a fluorescence and phosphorescence dual emission system. Then, KSV of Gd-PpIX can be obtained by the change of fluorescence intensity (IF) with oxygen concentration using the method of correlated fluorescence at intense pump power; meanwhile, the value can also be determined from the relationship of the phosphorescence intensity ratio and oxygen content by the Stern-Volmer equation under relatively low power density. It was found that the KSV values obtained by the above two methods were 12.2(1) and 11.9(7) kPa-1, respectively. Our results successfully verified the accuracy of oxygen-varying correlated fluorescence for determining the KSV by the phosphorescence property and fluorescence saturation of Gd-PpIX.
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Affiliation(s)
- Lu Li
- School of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Meng Kou
- School of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Yongda Wang
- School of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Feng Qin
- School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Hua Zhao
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Zhiguo Zhang
- School of Physics, Harbin Institute of Technology, Harbin 150001, P. R. China
- School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
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Xie Z, Wang J, Luo Y, Qiao B, Jiang W, Zhu L, Ran H, Wang Z, Zhu W, Ren J, Zhou Z. Tumor-penetrating nanoplatform with ultrasound "unlocking" for cascade synergistic therapy and visual feedback under hypoxia. J Nanobiotechnology 2023; 21:30. [PMID: 36698190 PMCID: PMC9878980 DOI: 10.1186/s12951-023-01765-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 01/03/2023] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Combined therapy based on the effects of cascade reactions of nanoplatforms to combat specific solid tumor microenvironments is considered a cancer treatment strategy with transformative clinical value. Unfortunately, an insufficient O2 supply and the lack of a visual indication hinder further applications of most nanoplatforms for solid tumor therapy. RESULTS A visualizable nanoplatform of liposome nanoparticles loaded with GOD, H(Gd), and PFP and grafted with the peptide tLyP-1, named tLyP-1H(Gd)-GOD@PFP, was constructed. The double-domain peptide tLyP-1 was used to specifically target and penetrate the tumor cells; then, US imaging, starvation therapy and sonodynamic therapy (SDT) were then achieved by the ultrasound (US)-activated cavitation effect under the guidance of MR/PA imaging. GOD not only deprived the glucose for starvation therapy but also produced H2O2, which in coordination with 1O2 produced by H(Gd), enable the effects of SDT to achieve a synergistic therapeutic effect. Moreover, the synergistic therapy was enhanced by O2 from PFP and low-intensity focused ultrasound (LIFU)-accelerated redox effects of the GOD. The present study demonstrated that the nanoplatform could generate a 3.3-fold increase in ROS, produce a 1.5-fold increase in the maximum rate of redox reactions and a 2.3-fold increase in the O2 supply in vitro, and achieve significant tumor inhibition in vivo. CONCLUSION We present a visualizable nanoplatform with tumor-penetrating ability that can be unlocked by US to overcome the current treatment problems by improving the controllability of the O2 supply, which ultimately synergistically enhanced cascade therapy.
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Affiliation(s)
- Zhuoyan Xie
- Department of Ultrasound, Chongqing General Hospital, Chongqing, 401147 China ,grid.412461.40000 0004 9334 6536Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
| | - Junrui Wang
- grid.412461.40000 0004 9334 6536Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China ,grid.412461.40000 0004 9334 6536Department of Radiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
| | - Yuanli Luo
- grid.412461.40000 0004 9334 6536Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
| | - Bin Qiao
- grid.412461.40000 0004 9334 6536Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
| | - Weixi Jiang
- grid.412461.40000 0004 9334 6536Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
| | - Leilei Zhu
- Department of Ultrasound, Chongqing General Hospital, Chongqing, 401147 China ,grid.412461.40000 0004 9334 6536Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
| | - Haitao Ran
- grid.412461.40000 0004 9334 6536Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
| | - Zhigang Wang
- grid.412461.40000 0004 9334 6536Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
| | - Wei Zhu
- grid.440771.10000 0000 8820 2504Depatment of Medical College, Hubei University for Nationalities, Enshi, 445000 Hubei China
| | - Jianli Ren
- grid.412461.40000 0004 9334 6536Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
| | - Zhiyi Zhou
- grid.412461.40000 0004 9334 6536Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China ,Depatment of General Practice, Chongqing General Hospital, Chongqing, 401147 China
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Kou M, Qin F, Wang Y, Zhang X, Zhao H, Tian Y, Zhang Z. Intrinsic Characterization Method on the Heavy Atom Effect of Metalloporphyrins. Inorg Chem 2022; 61:15175-15181. [DOI: 10.1021/acs.inorgchem.2c02374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Meng Kou
- School of Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Feng Qin
- School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yongda Wang
- School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Xiyu Zhang
- School of Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Hua Zhao
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Ye Tian
- Division of Cardiology, The First Affiliated Hospital, Harbin Medical University, Harbin 150001, China
| | - Zhiguo Zhang
- School of Physics, Harbin Institute of Technology, Harbin 150001, China
- School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
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Kou M, Qin F, Lv W, Zhang X, Wang Y, Zhao H, Zhang Z. Oxygen-Varying Correlated Fluorescence for Determining the Stern-Volmer Constant of Porphyrin. J Phys Chem Lett 2022; 13:2007-2011. [PMID: 35194994 DOI: 10.1021/acs.jpclett.2c00125] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The achievement of the Stern-Volmer constant (KSV) of porphyrin, a parameter to describe the ability of energy transfer to oxygen, enables us to understand and engineer the functionalities of porphyrin. In this study, we propose a new method to obtain KSV by steady fluorescence based on the population correlation between the excited triplet state (T1) and the singlet excited state (S1). Nonlinear fluorescence intensity of porphyrin [hematoporphyrin monomethyl ether (HMME)] as a function of pump power is observed, and this nonlinearity is oxygen-concentration-dependent. These observations originated from the population correlation, where more intense pump power introduces a stronger population correlation. Most importantly, we have found that the oxygen content can influence this correlation via the quenching of T1 based on its sequent change of fluorescence intensity; KSV ∼ 28 kPa-1 can be obtained theoretically for HMME. Our investigation not only offers a promising method of achieving KSV conveniently by steady fluorescence but also enlightens the advances of regulable fluorescence correlation.
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Affiliation(s)
- Meng Kou
- School of Physics, Harbin Institute of Technology, Harbin, Heilongjiang 150001, People's Republic of China
| | - Feng Qin
- School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, People's Republic of China
| | - Weiming Lv
- School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, People's Republic of China
| | - Xiyu Zhang
- School of Physics, Harbin Institute of Technology, Harbin, Heilongjiang 150001, People's Republic of China
| | - Yongda Wang
- School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, People's Republic of China
| | - Hua Zhao
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, People's Republic of China
| | - Zhiguo Zhang
- School of Physics, Harbin Institute of Technology, Harbin, Heilongjiang 150001, People's Republic of China
- School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, People's Republic of China
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Zhang H, Liu T, Li Q, Zhang X, Zhao H, Zheng Y, Qin F, Zhang Z, Sheng T, Tian Y. Large-scale sensitivity adjustment for Gd-HMME room temperature phosphorescence oxygen sensing. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120490. [PMID: 34688061 DOI: 10.1016/j.saa.2021.120490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
The oxygen sensing enhancement based on room temperature phosphorescence (RTP) of Gd-HMME adjusted by imidazole was studied. The phosphorescence intensity IP0 and the Stern-Volmer equations under different imidazole concentration were obtained, and the physical mechanism of imidazole regulating the oxygen quenching constant KSV was analyzed. It was found that the KSV value increased by ∼46 folds in the range of 12.4(1)-576.1(5) kPa-1, and the large-scale variation of KSV is conducive to the realization of high precision oxygen concentration measurement in a wide range. In addition, the standard deviation σ of continuous measurement results was given, and the limit of detection (LOD) was determined to be 6.6 ppm.
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Affiliation(s)
- Honglin Zhang
- School of Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Ting Liu
- School of Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Qiuhe Li
- School of Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Xiyu Zhang
- School of Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Hua Zhao
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yangdong Zheng
- School of Physics, Harbin Institute of Technology, Harbin 150001, China
| | - Feng Qin
- School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Zhiguo Zhang
- School of Physics, Harbin Institute of Technology, Harbin 150001, China; School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.
| | - Tianqi Sheng
- Zhong Sheng(Shen Zhen)Medical Equipment Science and Technology Co., Ltd, Guangdong 518000, China
| | - Ye Tian
- Division of Cardiology, The First Affiliated Hospital, Harbin Medical University, Harbin 150001, China
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Ratiometric Sensor Based on PtOEP-C6/Poly (St-TFEMA) Film for Automatic Dissolved Oxygen Content Detection. SENSORS 2020; 20:s20216175. [PMID: 33138300 PMCID: PMC7663556 DOI: 10.3390/s20216175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/27/2020] [Accepted: 10/28/2020] [Indexed: 12/04/2022]
Abstract
A ratiometric oxygen sensor based on a platinum octaethylporphyrin (PtOEP)–coumarin 6 (C6)/poly (styrene-trifluoroethyl methacrylate) (poly (St-TFEMA)) film was developed for automatic dissolved oxygen (DO) detection. The oxygen-sensing film according to the dynamic quenching mechanism was prepared by embedding platinum octaethylporphyrin (PtOEP) and coumarin 6 (C6) in poly (styrene-trifluoroethyl methacrylate) (poly (St-TFEMA)). The optical parameter (OP) was defined as the ratio of the oxygen-insensitive fluorescence from C6 to the oxygen-sensitive phosphorescence from PtOEP. A calibration equation expressing the correlation between the OP values and DO content described by a linear function was obtained. A program based on the Labview software was developed for monitoring the real-time DO content automatically. The influence of the excitation intensity and fluctuation on the OP values and the direct luminescence signal (integration areas) was compared, verifying the strong anti-interference ability of the sensor. The detection limit of the sensor was determined to be 0.10 (1) mg/L. The switching response time and recovery time of the sensor were 0.4 and 1.3 s, respectively. Finally, the oxygen sensor was applied to the investigation of the kinetic process of the DO content variation, which revealed an exponential relationship with time.
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