1
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Song J, Fang H, Wang X, Zhong W. TADF-Guiding Modification of Endoplasmic Reticulum-Targeted Photosensitizers for Efficient Photodynamic Immunotherapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402439. [PMID: 39235589 DOI: 10.1002/smll.202402439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 08/19/2024] [Indexed: 09/06/2024]
Abstract
Pharmacological activation of the immunogenic cell death (ICD) pathway by endoplasmic reticulum (ER) targeted photosensitizer (PS) has become a promising strategy for tumor immunotherapy. Despite a clear demand for ER-targeted PS, the sluggish intersystem crossing (ISC) process, unstable excited state, insufficient ROS production, and immunosuppressive tumor microenvironment (ITME) combined to cause the high-efficiency agents are still limited. Herein, three groups commonly used in thermally activated delayed fluorescence (TADF) molecular design are used to modify the excited state characteristics of xanthene-based cyanine PS (obtained the XCy-based PS). The electronic and geometric modulation effectively optimize the excited state characteristics, facilitating the ISC process and prolonging the excited state life for boosting ROS generation. Among them, car-XCy showed 100 times longer excited state life and 225% higher ROS yield than that of original XCy. The satisfactory ROS production and ER-targeted ability of car-XCy arouse intense ER stress to activate the ICD. Adequate antigen presentation promotes the dendritic cell maturation and infiltration of cytotoxic T lymphocytes (CTLs), ultimately reversing the ITME to realize efficient immunotherapy. As a result, significant inhibition is observed in both primary and distant tumors, underscoring the efficacy of this TADF-guiding excited state characteristics modulation strategy for developing photodynamic immunotherapy drugs.
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Affiliation(s)
- Jiaxuan Song
- School of Pharmacy, Shandong University, Jinan, 250100, P. R. China
| | - Hao Fang
- School of Pharmacy, Shandong University, Jinan, 250100, P. R. China
| | - Xudong Wang
- School of Pharmacy, Shandong Second Medical University, Weifang, 261053, P. R. China
| | - Wenda Zhong
- School of Pharmacy, Shandong Second Medical University, Weifang, 261053, P. R. China
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2
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Sevilla-Pym A, Primrose WL, Luppi BT, Bergmann K, Hudson ZM. Organelle-Targeting Polymer Dots Exhibiting Thermally Activated Delayed Fluorescence for Subcellular Imaging. ACS APPLIED MATERIALS & INTERFACES 2024; 16:46133-46144. [PMID: 39166441 DOI: 10.1021/acsami.4c10311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
Selective imaging of specific subcellular structures provides valuable information about the cellular microenvironment. Materials exhibiting thermally activated delayed fluorescence (TADF) are rapidly emerging as metal-free probes with long-lived emission for intracellular time-gated imaging applications. Polymers incorporating TADF emitters can self-assemble into luminescent nanoparticles, termed polymer dots (Pdots), and this strategy enables them to circumvent the limitations of commercial organelle trackers and small molecule TADF emitters. In this study, diblock copolymers comprised of a hydrophilic block containing organelle-targeting monomers and a hydrophobic TADF-active block were synthesized by ring-opening metathesis polymerization (ROMP). Oxanorbornene-based monomers incorporating morpholine and triphenylphosphonium groups for lysosome and mitochondria targeting, respectively, were also synthesized. ROMP by sequential addition yielded well-defined diblock copolymers with dispersities <1.28. To analyze the effect of tuning the hydrophilic corona on cellular viability and uptake, we prepared Pdots with poly(ethylene glycol) (PEG) and bis-guanidinium (BGN) coronas, resulting in limited and efficient cellular uptake, respectively. Red-emissive Pdots with BGN-based coronas and organelle-targeting functionality were obtained with quantum yields up to 12% in water under air. Colocalization analysis confirmed that lysosome and mitochondria labeling in live HeLa cells was accomplished within 2 h of incubation, affording Pearson's correlation coefficients of 0.37 and 0.70, respectively. The potential application of these Pdots for time-resolved imaging is highlighted by a proof of concept using time-gated spectroscopy, which effectively separates the delayed emission of the TADF Pdots from the background autofluorescence of biological serum.
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Affiliation(s)
- Angelica Sevilla-Pym
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - William L Primrose
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Bruno T Luppi
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Katrina Bergmann
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Zachary M Hudson
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
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3
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Lin L, Liu J, Pan Z, Pang W, Jiang X, Lei M, Gao J, Xiao Y, Li B, Hu F, Bao Z, Wei X, Wu W, Gu B. General Post-Regulation Strategy of AIEgens' Photophysical Properties for Intravital Two-Photon Fluorescence Imaging. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2404792. [PMID: 39119825 DOI: 10.1002/advs.202404792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Revised: 07/28/2024] [Indexed: 08/10/2024]
Abstract
Fluorogens with aggregation-induced emission (AIEgens) are promising agents for two-photon fluorescence (TPF) imaging. However, AIEgens' photophysical properties are fixed and unoptimizable once synthesized. Therefore, it is urgent and meaningful to explore an efficient post-regulation strategy to optimize AIEgens' photophysical properties. Herein, a general and efficient post-regulation strategy is reported. By simply tuning the ratio of inert AIEgens within binary nanoparticles (BNPs), the fluorescence quantum yield and two-photon absorption cross-section of functional AIEgens are enhanced by 8.7 and 5.4 times respectively, which are not achievable by conventional strategies, and the notorious phototoxicity is almost eliminated. The experimental results, theoretical simulation, and mechanism analysis demonstrated its feasibility and generality. The BNPs enabled deep cerebrovascular network imaging with ≈1.10 mm depth and metastatic cancer cell detection with single-cell resolution. Furthermore, the TPF imaging quality is improved by the self-supervised denoising algorithm. The proposed binary molecular post-regulation strategy opened a new avenue to efficiently boost the AIEgens' photophysical properties and consequently TPF imaging quality.
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Affiliation(s)
- Liyun Lin
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Jiaxin Liu
- Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, Tianjin, 300072, China
| | - Zhengyuan Pan
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Wen Pang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Xinyan Jiang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Man Lei
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Jucai Gao
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, 510515, China
| | - Yujie Xiao
- Department of Neurology, Huashan Hospital, MOE Frontiers Center for Brain Science, State Key Laboratory of Medical Neurobiology, Institutes for Translational Brain Research, Fudan University, Shanghai, 200437, China
| | - Bo Li
- Department of Neurology, Huashan Hospital, MOE Frontiers Center for Brain Science, State Key Laboratory of Medical Neurobiology, Institutes for Translational Brain Research, Fudan University, Shanghai, 200437, China
| | - Fang Hu
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, 510515, China
| | - Zhouzhou Bao
- Shanghai Key Laboratory of Gynecologic Oncology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Xunbin Wei
- Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute, Beijing, 100142, China
- Biomedical Engineering Department and International Cancer Institute, Peking University, Beijing, 100191, China
| | - Wenbo Wu
- Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, Tianjin, 300072, China
| | - Bobo Gu
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China
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Li Z, Lu J, Li X. Recent Progress in Thermally Activated Delayed Fluorescence Photosensitizers for Photodynamic Therapy. Chemistry 2024; 30:e202401001. [PMID: 38742479 DOI: 10.1002/chem.202401001] [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: 03/11/2024] [Revised: 05/04/2024] [Accepted: 05/13/2024] [Indexed: 05/16/2024]
Abstract
Photodynamic therapy (PDT) is a rapidly growing discipline that is expected to become an encouraging noninvasive therapeutic strategy for cancer treatment. In the PDT process, an efficient intersystem crossing (ISC) process for photosensitizers from the singlet excited state (S1) to the triplet excited state (T1) is critical for the formation of cytotoxic reactive oxygen species and improvement of PDT performance. Thermally activated delayed fluorescence (TADF) molecules featuring an extremely small singlet-triplet energy gap and an efficient ISC process represent an enormous breakthrough for the PDT process. Consequently, the development of advanced TADF photosensitizers has become increasingly crucial and pressing. The most recent developments in TADF photosensitizers aimed at enhancing PDT efficiency for bio-applications are presented in this review. TADF photosensitizers with water dispersibility, targeting ability, activatable ability, and two-photon excitation properties are highlighted. Furthermore, the future challenges and perspectives of TADF photosensitizers in PDT are proposed.
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Affiliation(s)
- Ziqi Li
- State Key Laboratory of Clean and Efficient Coal Utilization, Tai Yuan, Taiyuan University of Technology, Taiyuan, 030024, P.R. China
| | - Jianjun Lu
- State Key Laboratory of Clean and Efficient Coal Utilization, Tai Yuan, Taiyuan University of Technology, Taiyuan, 030024, P.R. China
| | - Xuping Li
- State Key Laboratory of Clean and Efficient Coal Utilization, Tai Yuan, Taiyuan University of Technology, Taiyuan, 030024, P.R. China
- College of Energy Materials and Chemistry, Inner Mongolia University, Hohhot, 010020, P.R. China
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Ravi S, Karthikeyan S, Pannipara M, Al-Sehemi AG, Moon D, Anthony SP. Deep blue emitting dual state fluorescent triphenylamine-dicyclohexylurea derivative: Multi-stimuli responsive fluorescence switching and methanol/water sensing. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 315:124303. [PMID: 38636429 DOI: 10.1016/j.saa.2024.124303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/10/2024] [Accepted: 04/14/2024] [Indexed: 04/20/2024]
Abstract
A new deep blue emissive organic fluorophore (N-cyclohexyl-N-(cyclohexylcarbamoyl)-4-(diphenylamino)benzamide (NCDPB)) was designed and synthesized, which showed strong fluorescence both in solution and solid-state. Solid-state structural analysis of NCDPB revealed non-planar twisted molecular conformation with extended hydrogen bonding between the amide functionalities. The propeller shaped triphenylamine (TPA) and non-planar cyclohexyl unit prevented close π…π stacking and produced strong deep blue emission in the solid state (λmax = 400 nm, quantum yield (Φf) = 12.6 %). NCDPB also exhibited strong solvent polarity dependent tunable emission in solution (λmax = 402-462 nm, Φf = 1.15 (compared to quinine sulphate)). NCDPB showed reversible fluorescence switching between two fluorescence states upon mechanical crushing and heating/solvent exposure. Mechanical crushing caused red shifting of fluorescence from 400 to 447 nm and heating/solvent exposure reversed the fluorescence. Further, NCDPB also displayed off-on reversible/self-reversible fluorescence switching upon exposure to trifluoracetic acid (TFA) and NH3. The repeated fluorescence switching cycles indicated high reversibility without any significant change of fluorescence intensity. The drastically different fluorescence of NCDPB in CH3OH and EtOH was utilized to distinguish them and monitor CH3OH contamination in ethanol and benzene. It showed limit of detection (LOD) of methanol up to 0.25 % and 7 % in benzene and ethanol, respectively. The water sensitive fluorescence modulation of NCDPB in organic solvents was used to sensing water contamination in common organic solvents. Thus, integration of twisted TPA with H-bonding urea produced dual state emitting organic fluorophore with multi-responsive fluorescence switching and solvent sensing.
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Affiliation(s)
- Sasikala Ravi
- School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India
| | - Subramanian Karthikeyan
- Department of Chemistry, Khadir Mohideen College (Affiliated to Bharathidasan University), Adirampattinam 614701, Tamil Nadu, India
| | - Mehboobali Pannipara
- Department of chemistry, King Khalid University, Abha 61413, Saudi Arabia; Research center for Advanced Materials Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Abdullah G Al-Sehemi
- Department of chemistry, King Khalid University, Abha 61413, Saudi Arabia; Research center for Advanced Materials Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Dohyun Moon
- Beamline Department, Pohang Accelerator Laboratory, 80 Jigokro-127beongil, Nam-gu, Pohang, Gyeongbuk, Korea.
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6
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Şahin ME, Biryan F, Çalışkan E, Koran K. Coumarin-Phosphazenes: Enhanced Photophysical Properties from Hybrid Materials. Inorg Chem 2024; 63:11006-11020. [PMID: 38822816 DOI: 10.1021/acs.inorgchem.4c00379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2024]
Abstract
Phosphazenes have drawn a great deal of interest over the past 20 years as a potentially useful building block for the fabrication of fluorescent materials. The main objective of this work is to explore novel derivatives produced by coumarins, a class of chemicals well-known for their photophysical importance, and cyclophosphazenes. UV absorbance, fluorescence emission, quantum yield, and lifetime measurements were conducted to comprehend the optical properties. Furthermore, single-crystal X-ray analysis and theoretical calculations were carried out to confirm the structure of the molecule. The obtained findings collectively confirm the commendable optical properties exhibited by the studied compounds. Moreover, a detailed study of the crystal packing arrangement of DPP-Et-Kum-Et compound crystallized in the P21/n monoclinic space group revealed the presence of stacking interactions between the nonplanar conjugated benzene rings of the coumarins and the rigid diphenyl groups attached to the phosphazene ring. The crystal structure of the DPP-Kum-Me-Me compound is mainly based on classical C-H···O intermolecular hydrogen bonding interactions with an average distance of 2.52 Å. Importantly, the calculated absorption spectra of the compounds are in close agreement with the experimental data, further supporting their interesting electronic properties. Given that the DPP-Et-Kum-Et and DPP-Kum-Et compounds have the theoretically lowest band gaps (4.31 and 4.30 eV, respectively), the activation energies of these compounds were determined by an impedance analyzer using dc conductance values measured at different temperatures. The calculated activation energies for DPP-Et-Kum-Et and DPP-Kum-Et are 104.49 and 100.92 meV, respectively. The results demonstrate that both theoretical and experimental calculations are in agreement with each other and that the DPP-Kum-Et compound has the lowest conductivity.
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Affiliation(s)
| | - Fatih Biryan
- Department of Chemistry, Fırat University, Elazig 23119, Turkey
| | - Eray Çalışkan
- Department of Chemistry, Bingol University, Bingol 12000, Turkey
| | - Kenan Koran
- Department of Chemistry, Fırat University, Elazig 23119, Turkey
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7
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Ni F, Huang Y, Qiu L, Yang C. Synthetic progress of organic thermally activated delayed fluorescence emitters via C-H activation and functionalization. Chem Soc Rev 2024; 53:5904-5955. [PMID: 38717257 DOI: 10.1039/d3cs00871a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Thermally activated delayed fluorescence (TADF) emitters have become increasingly prominent due to their promising applications across various fields, prompting a continuous demand for developing reliable synthetic methods to access them. This review aims to highlight the progress made in the last decade in synthesizing organic TADF compounds through C-H bond activation and functionalization. The review begins with a brief introduction to the basic features and design principles of TADF emitters. It then provides an overview of the advantages and concise development of C-H bond transformations in constructing TADF emitters. Subsequently, it summarizes both transition-metal-catalyzed and non-transition-metal-promoted C-H bond transformations used for the synthesis of TADF emitters. Finally, the review gives an outlook on further challenges and potential directions in this field.
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Affiliation(s)
- Fan Ni
- National Engineering Lab of Special Display Technology, State Key Lab of Advanced Display Technology, Academy of Opto-Electronic Technology, Intelligent Interconnected Systems Laboratory of Anhui, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronic Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China.
| | - Yipan Huang
- National Engineering Lab of Special Display Technology, State Key Lab of Advanced Display Technology, Academy of Opto-Electronic Technology, Intelligent Interconnected Systems Laboratory of Anhui, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronic Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China.
| | - Longzhen Qiu
- National Engineering Lab of Special Display Technology, State Key Lab of Advanced Display Technology, Academy of Opto-Electronic Technology, Intelligent Interconnected Systems Laboratory of Anhui, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronic Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China.
| | - Chuluo Yang
- Shenzhen Key Laboratory of New Information Display and Storage Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, Guangdong 518060, P. R. China.
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8
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Hojo R, Bergmann K, Hudson ZM. Investigating Hydrogen Bonding in Quinoxaline-Based Thermally Activated Delayed Fluorescent Materials. J Phys Chem Lett 2024; 15:5600-5606. [PMID: 38758029 DOI: 10.1021/acs.jpclett.4c01177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
In recent years, hydrogen bonding (H bonding) as an intramolecular locking strategy has been proposed to enhance photoluminescence, color purity, and photostability in thermally activated delayed fluorescence (TADF) materials. Rigidification as a design strategy is particularly relevant when using electron-deficient N-heterocycles as electron acceptors, because these materials often suffer from poor performance as orange to near-infrared emitters as a result of the energy gap law. To critically evaluate the presence of H bonding in such materials, two TADF-active donor-acceptor dyads, ACR-DQ and ACR-PQ, were synthesized. Despite their potential sites for intramolecular H bonding and emissions spanning yellow to deep red, computational analyses (including frequency, natural bond orbital, non-covalent interaction, and potential energy surface assessments) and crystal structure examinations collectively suggest the absence of H bonding in these materials. Our results indicate that invoking intramolecular H bonding should be done with caution in the design of rigidified TADF materials.
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Affiliation(s)
- Ryoga Hojo
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Katrina Bergmann
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Zachary M Hudson
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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9
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Chen M, Zhang Z, Lin R, Liu J, Xie M, He X, Zheng C, Kang M, Li X, Feng HT, Lam JWY, Wang D, Tang BZ. A planar electronic acceptor motif contributing to NIR-II AIEgen with combined imaging and therapeutic applications. Chem Sci 2024; 15:6777-6788. [PMID: 38725487 PMCID: PMC11077540 DOI: 10.1039/d3sc06886b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 03/28/2024] [Indexed: 05/12/2024] Open
Abstract
Designing molecules with donor-acceptor-donor (D-A-D) architecture plays an important role in obtaining second near-infrared region (NIR-II, 1000-1700 nm) fluorescent dyes for biomedical applications; however, this always comes with a challenge due to very limited electronic acceptors. On the other hand, to endow NIR-II fluorescent dyes with combined therapeutic applications, trivial molecular design is indispensable. Herein, we propose a pyrazine-based planar electronic acceptor with a strong electron affinity, which can be used to develop NIR-II fluorescent dyes. By structurally attaching two classical triphenylamine electronic donors to it, a basic D-A-D module, namely Py-NIR, can be generated. The planarity of the electronic acceptor is crucial to induce a distinct NIR-II emission peaking at ∼1100 nm. The unique construction of the electronic acceptor can cause a twisted and flexible molecular conformation by the repulsive effect between the donors, which is essential to the aggregation-induced emission (AIE) property. The tuned intramolecular motions and twisted D-A pair brought by the electronic acceptor can lead to a remarkable photothermal conversion with an efficiency of 56.1% and induce a type I photosensitization with a favorable hydroxyl radical (OH˙) formation. Note that no additional measures are adopted in the molecular design, providing an ideal platform to realize NIR-II fluorescent probes with synergetic functions based on such an acceptor. Besides, the nanoparticles of Py-NIR can exhibit excellent NIR-II fluorescence imaging towards orthotopic 4T1 breast tumors in living mice with a high sensitivity and contrast. Combined with photothermal imaging and photoacoustic imaging caused by the thermal effect, the imaging-guided photoablation of tumors can be well performed. Our work has created a new opportunity to develop NIR-II fluorescent probes for accelerating biomedical applications.
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Affiliation(s)
- Ming Chen
- College of Chemistry and Materials Science, Jinan University Guangzhou 510632 China
| | - Zhijun Zhang
- Center for AIR Research, College of Materials and Engineering, Shenzhen University Shenzhen 518060 China
| | - Runfeng Lin
- College of Chemistry and Materials Science, Jinan University Guangzhou 510632 China
| | - Junkai Liu
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Guangdong-Hong Kong-Macau Joint Laboratory of Optoelectronic and Magnetic Materials, The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong 999077 China
| | - Meizhu Xie
- College of Chemistry and Materials Science, Jinan University Guangzhou 510632 China
| | - Xiang He
- College of Chemistry and Materials Science, Jinan University Guangzhou 510632 China
| | - Canze Zheng
- College of Chemistry and Materials Science, Jinan University Guangzhou 510632 China
| | - Miaomiao Kang
- Center for AIR Research, College of Materials and Engineering, Shenzhen University Shenzhen 518060 China
| | - Xue Li
- Center for AIR Research, College of Materials and Engineering, Shenzhen University Shenzhen 518060 China
| | - Hai-Tao Feng
- AIE Research Center, Shaanxi Key Laboratory of Photochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences Baoji 721013 China
| | - Jacky W Y Lam
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Guangdong-Hong Kong-Macau Joint Laboratory of Optoelectronic and Magnetic Materials, The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong 999077 China
| | - Dong Wang
- Center for AIR Research, College of Materials and Engineering, Shenzhen University Shenzhen 518060 China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Guangdong-Hong Kong-Macau Joint Laboratory of Optoelectronic and Magnetic Materials, The Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong 999077 China
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong Shenzhen (CUHK-SZ) Guangdong China
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10
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Pham TC, Cho M, Nguyen VN, Nguyen VKT, Kim G, Lee S, Dehaen W, Yoon J, Lee S. Charge Transfer-Promoted Excited State of a Heavy-Atom-Free Photosensitizer for Efficient Application of Mitochondria-Targeted Fluorescence Imaging and Hypoxia Photodynamic Therapy. ACS APPLIED MATERIALS & INTERFACES 2024; 16:21699-21708. [PMID: 38634764 DOI: 10.1021/acsami.4c03123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Conventional photosensitizers (PSs) used in photodynamic therapy (PDT) have shown preliminary success; however, they are often associated with several limitations including potential dark toxicity in healthy tissues, limited efficacy under acidic and hypoxic conditions, suboptimal fluorescence imaging capabilities, and nonspecific targeting during treatment. In response to these challenges, we developed a heavy-atom-free PS, denoted as Cz-SB, by incorporating ethyl carbazole into a thiophene-fused BODIPY core. A comprehensive investigation into the photophysical properties of Cz-SB was conducted through a synergistic approach involving experimental and computational investigations. The enhancement of intersystem crossing (kISC) and fluorescence emission (kfl) rate constants was achieved through a donor-acceptor pair-mediated charge transfer mechanism. Consequently, Cz-SB demonstrated remarkable efficiency in generating reactive oxygen species (ROS) under acidic and low-oxygen conditions, making it particularly effective for hypoxic cancer PDT. Furthermore, Cz-SB exhibited good biocompatibility, fluorescence imaging capabilities, and a high degree of localization within the mitochondria of living cells. We posit that Cz-SB holds substantial prospects as a versatile PS with innovative molecular design, representing a potential "one-for-all" solution in the realm of cancer phototheranostics.
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Affiliation(s)
- Thanh Chung Pham
- Department of Chemistry, KU Leuven, 3001 Leuven, Belgium
- Institute for Tropical Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
| | - Moonyeon Cho
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea
| | - Van-Nghia Nguyen
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea
| | - Van Kieu Thuy Nguyen
- Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan 48513, Korea
| | - Gyoungmi Kim
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea
| | - Seongman Lee
- Department of Chemistry, Pukyong National University, Busan 48513, Korea
| | - Wim Dehaen
- Department of Chemistry, KU Leuven, 3001 Leuven, Belgium
| | - Juyoung Yoon
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea
| | - Songyi Lee
- Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan 48513, Korea
- Department of Chemistry, Pukyong National University, Busan 48513, Korea
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11
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Al-Sharji H, Ilmi R, Khan MS. Recent Progress in Phenoxazine-Based Thermally Activated Delayed Fluorescent Compounds and Their Full-Color Organic Light-Emitting Diodes. Top Curr Chem (Cham) 2024; 382:5. [PMID: 38329582 DOI: 10.1007/s41061-024-00450-3] [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: 10/04/2023] [Accepted: 01/04/2024] [Indexed: 02/09/2024]
Abstract
Third-generation organic light-emitting diodes (OLEDs) based on metal-free thermally activated delayed fluorescent (TADF) materials have sparked tremendous interest in the last decade due to their nearly 100% exciton utilization efficiency, which can address the low-efficiency issue of the first-generation fluorescent emitters and the high-cost issue of the second-generation organometallic phosphorescent emitters. Construction of efficient and stable TADF-OLEDs requires utilizing TADF materials with a narrow singlet-triplet energy gap (ΔEST), high photoluminescence quantum yield (PLQY) and short TADF lifetime. A small ΔEST is necessary for an efficient reverse intersystem crossing (RISC) process, which can be achieved through the effective spatial separation of the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO). TADF emitters have been generally designed as intramolecular charge transfer (ICT) molecules with highly twisted donor-acceptor (D-A) molecular architectures. A wide variety of combinations of electron donors and acceptors have been explored. In this review, we shall focus on recent progress in organic TADF molecules incorporating strong electron-donor phenoxazine moiety and their application as emitting layer (EML) in OLEDs.
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Affiliation(s)
- Houda Al-Sharji
- Department of Chemistry, Sultan Qaboos University, P. O. Box 36, Al Khod, 123, Oman
| | - Rashid Ilmi
- Department of Chemistry, Sultan Qaboos University, P. O. Box 36, Al Khod, 123, Oman.
| | - Muhammad S Khan
- Department of Chemistry, Sultan Qaboos University, P. O. Box 36, Al Khod, 123, Oman.
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12
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Caine JR, Choi H, Hojo R, Hudson ZM. Organic Photothermal Materials Obtained Using Thermally Activated Delayed Fluorescence Design Principles. Chemistry 2024; 30:e202302861. [PMID: 38015005 DOI: 10.1002/chem.202302861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Indexed: 11/29/2023]
Abstract
Organic small molecules with high photothermal conversion efficiencies that absorb near-infrared light are desirable for photothermal therapy due to their improved biocompatibility compared to inorganic materials and their ability to absorb light in the biological transparency window (650-1350 nm). Here we report three donor-acceptor organic materials DM-ANDI, O-ANDI, and S-ANDI that show high photothermal conversion efficiencies of 46-68 % with near-infrared absorption. The design of these molecules is based on the rational modification of a thermally activated delayed fluorescence material to favour a low photoluminescence quantum yield by reducing HOMO-LUMO overlap. Encapsulating these materials into either neat nanoparticles or aggregated organic dots modulates their photothermal conversion efficiencies, and also facilitates dispersion in water.
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Affiliation(s)
- Jana R Caine
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, V6T 1Z1, Canada)
| | - Heekyoung Choi
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, V6T 1Z1, Canada)
| | - Ryoga Hojo
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, V6T 1Z1, Canada)
| | - Zachary M Hudson
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, V6T 1Z1, Canada)
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13
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Hodée M, Massue J, Achelle S, Fihey A, Tondelier D, Ulrich G, Guen FRL, Katan C. Styrylpyrimidine chromophores with bulky electron-donating substituents: experimental and theoretical investigation. Phys Chem Chem Phys 2023; 25:32699-32708. [PMID: 38014523 DOI: 10.1039/d3cp03705c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Styrylpyrimidines with bulky 9,9-dimethylacridan, phenoxazine and phenothiazine electron-donating fragments were designed. Thermally activated delayed fluorescence (TADF) properties were expected for these structures. These chromophores exhibit peculiar emission properties. For 9,9-dimethylacridan and phenoxazine derivatives, a single emission highly sensitive to the polarity is observed in solution whereas for phenothiazine derivative a dual emission is observed in solution and is attributed to the coexistence of quasi-axial (Qax) and quasi-equatorial (Qeq) conformers. This study intends to understand through theoretical and experimental works, why the studied chromophores do not exhibit TADF properties, contrary to what was expected. The absence of phosphorescence both at room temperature and 77 K tends to indicate the impossibility to harvest triplet states in these systems. Wave-function based calculations show that for both conformers of the three chromophores the S1-T1 splitting is significantly larger than 0.2 eV. The second triplet state T2 of Qeq conformers is found very close in energy to the singlet S1 state, but S1 and T2 states possess similar charge transfer characters. This prevents efficient spin-orbit coupling between the states, which is consistent with the absence of TADF.
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Affiliation(s)
- Maxime Hodée
- Univ Rennes, ENSCR, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Julien Massue
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), UMR CNRS 7515, Equipe Chimie Organique pour la Biologie, les Matériaux et l'Optique (COMBO) 25 Rue Becquerel, 67087 Strasbourg, Cedex 02, France.
| | - Sylvain Achelle
- Univ Rennes, ENSCR, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Arnaud Fihey
- Univ Rennes, ENSCR, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Denis Tondelier
- Laboratoire de Physique des Interfaces et des Couches Minces (LPICM), CNRS, Ecole Polytechnique, IP Paris, Palaiseau Cedex, France
- Université Paris-Saclay, CEA, CNRS, NIMBE, LICSEN, Gif-sur-Yvette, France
| | - Gilles Ulrich
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), UMR CNRS 7515, Equipe Chimie Organique pour la Biologie, les Matériaux et l'Optique (COMBO) 25 Rue Becquerel, 67087 Strasbourg, Cedex 02, France.
| | - Françoise Robin-le Guen
- Univ Rennes, ENSCR, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Claudine Katan
- Univ Rennes, ENSCR, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
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14
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Na W, An L, Wu Q, Cai K, Ou C, Zhuang W. Sulfone/Carbonyl-Based Donor-Acceptor Fluorescent Dyes: Synthesis, Structures, Photophysical Properties and Cell Imaging. Chemistry 2023; 29:e202301997. [PMID: 37658616 DOI: 10.1002/chem.202301997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/31/2023] [Accepted: 08/31/2023] [Indexed: 09/03/2023]
Abstract
Electron-accepting units play vital roles in constructing donor-acceptor (D-A) conjugated organic optoelectronic materials; the electronic structures and functions of the acceptors need to be carefully unveiled to controllably tailor the optoelectronic properties. We have synthesized two D-A conjugated organic fluorophores, TPA-SO and TPA-CO, with similar molecular skeletons based on sulfone- or carbonyl-containing polycyclic aromatic acceptors. Both TPA-SO and TPA-CO display obvious solvent polarity-dependent photophysical properties and large Stokes shift of over 100 nm for strong intramolecular charge transfer processes. Experimental evidence indicates that the sulfone group in TPA-SO merely serves as a strong electron-withdrawing unit. TPA-SO shows yellowish-green emission with a peak at 542 nm and an absolute photoluminescence quantum yield (PLQY) of 98 % in solution, whereas the carbonyl group in TPA-CO can act as both an electron-withdrawing unit and spin transition convertor, so TPA-CO displays red emission with a low absolute PLQY of 0.32 % in solution. Impressively, upon going from solution to aggregate state, TPA-SO nanoparticles keep a high PLQY of 9.5 % and moderate biocompatibility, thus they are good nano-agents for cellular fluorescence imaging. The results reveal that the inherent acceptor characteristic acts as a crucial effect in the photophysical properties and applications of the organic fluorophores.
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Affiliation(s)
- Weidan Na
- College of Chemistry and Chemical Engineering, Xuzhou University of Technology, Xuzhou, 221111, P. R. China
| | - Lei An
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing, 210044, P. R. China
| | - Qiong Wu
- College of Chemistry and Chemical Engineering, Xuzhou University of Technology, Xuzhou, 221111, P. R. China
| | - Keying Cai
- College of Chemistry and Chemical Engineering, Xuzhou University of Technology, Xuzhou, 221111, P. R. China
| | - Changjin Ou
- School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing, 210044, P. R. China
| | - Wenchang Zhuang
- College of Chemistry and Chemical Engineering, Xuzhou University of Technology, Xuzhou, 221111, P. R. China
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15
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Gusev A, Braga E, Zamnius E, Kiskin M, Ali A, Baryshnikov G, Linert W. Mononuclear copper(I) complexes bearing a 3-phenyl-5-(pyridin-4-yl)-1,2,4-triazole ligand: synthesis, crystal structure, TADF-luminescence, and mechanochromic effects. Dalton Trans 2023; 52:14995-15008. [PMID: 37811719 DOI: 10.1039/d3dt02633g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Three new mononuclear heteroleptic copper(I) halide complexes, [CuL(PPh3)2X] (X = Cl, Br, I), based on 3-phenyl-5-(pyridin-4-yl)-1,2,4-triazole (L) and triphenylphosphine (PPh3) ligands, have been prepared by reaction of CuX (X = Cl, Br, I), L and PPh3 in a molar ratio of 1 : 1 : 2 in MeCN solutions. The synthesized complexes exhibit blue light emission in solutions and bright green emission in the crystal state with quantum yields of up to 100%. The luminescence decay analysis and density functional theory calculations revealed that the emission of solid samples at room temperature corresponds to the thermally activated delayed fluorescence, while that at 77 K is assigned to phosphorescence. Utilizing the studied complexes in OLED heterostructures resulted in high-performing green-emitting devices with an external quantum efficiency of up to 13.4%.
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Affiliation(s)
- Alexey Gusev
- Crimean Federal University, Simferopol, 295007, Crimea, Russia.
| | - Elena Braga
- Crimean Federal University, Simferopol, 295007, Crimea, Russia.
| | | | - Mikhail Kiskin
- N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - Amjad Ali
- Linköping University, Department of Science and Technology, Laboratory of Organic Electronics, Norrköping, SE-60174, Sweden
| | - Glib Baryshnikov
- Linköping University, Department of Science and Technology, Laboratory of Organic Electronics, Norrköping, SE-60174, Sweden
| | - Wolfgang Linert
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163-AC, A-1060 Vienna, Austria
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16
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Demirbay B, Baryshnikov G, Haraldsson M, Piguet J, Ågren H, Widengren J. Photo-physical characterization of high triplet yield brominated fluoresceins by transient state (TRAST) spectroscopy. Methods Appl Fluoresc 2023; 11:045011. [PMID: 37726005 DOI: 10.1088/2050-6120/acfb59] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 09/19/2023] [Indexed: 09/21/2023]
Abstract
Photo-induced dark transient states of fluorophores can pose a problem in fluorescence spectroscopy. However, their typically long lifetimes also make them highly environment sensitive, suggesting fluorophores with prominent dark-state formation yields to be used as microenvironmental sensors in bio-molecular spectroscopy and imaging. In this work, we analyzed the singlet-triplet transitions of fluorescein and three synthesized carboxy-fluorescein derivatives, with one, two or four bromines linked to the anthracence backbone. Using transient state (TRAST) spectroscopy, we found a prominent internal heavy atom (IHA) enhancement of the intersystem crossing (ISC) rates upon bromination, inferred by density functional theory calculations to take place via a higher triplet state, followed by relaxation to the lowest triplet state. A corresponding external heavy atom (EHA) enhancement was found upon adding potassium iodide (KI). Notably, increased KI concentrations still resulted in lowered triplet state buildup in the brominated fluorophores, due to relatively lower enhancements in ISC, than in the triplet decay. Together with an antioxidative effect on the fluorophores, adding KI thus generated a fluorescence enhancement of the brominated fluorophores. By TRAST measurements, analyzing the average fluorescence intensity of fluorescent molecules subject to a systematically varied excitation modulation, dark state transitions within very high triplet yield (>90%) fluorophores can be directly analyzed under biologically relevant conditions. These measurements, not possible by other techniques such as fluorescence correlation spectroscopy, opens for bio-sensing applications based on high triplet yield fluorophores, and for characterization of high triplet yield photodynamic therapy agents, and how they are influenced by IHA and EHA effects.
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Affiliation(s)
- Baris Demirbay
- Royal Institute of Technology (KTH), Experimental Biomolecular Physics, Department of Applied Physics, Albanova University Center, SE-106 91, Stockholm, Sweden
| | - Glib Baryshnikov
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, SE-60174, Norrköping, Sweden
| | - Martin Haraldsson
- Chemical Biology Consortium Sweden, Science for Life Laboratory, Department of Medical Biochemistry and Biophysics, Karolinska Institute, SE-171 77 Stockholm, Sweden
| | - Joachim Piguet
- Royal Institute of Technology (KTH), Experimental Biomolecular Physics, Department of Applied Physics, Albanova University Center, SE-106 91, Stockholm, Sweden
| | - Hans Ågren
- Department of Physics and Astronomy, Uppsala University, SE-751 20 Uppsala, Sweden
| | - Jerker Widengren
- Royal Institute of Technology (KTH), Experimental Biomolecular Physics, Department of Applied Physics, Albanova University Center, SE-106 91, Stockholm, Sweden
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17
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Sun H, Guo R, Guo Y, Song J, Li Z, Song F. Boosting Type-I and Type-II ROS Production of Water-Soluble Porphyrin for Efficient Hypoxic Tumor Therapy. Mol Pharm 2023; 20:606-615. [PMID: 36398863 DOI: 10.1021/acs.molpharmaceut.2c00822] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
As the most successful clinically approved photosensitizers, porphyrins have been extensively employed in the photodynamic therapy (PDT) of cancers. However, their poor water solubility, aggregation-induced self-quenching on ROS generation, and a low tolerance for a hypoxic condition usually result in unsatisfied therapeutic outcomes. Therefore, great efforts have been dedicated to improving the PDT efficacy of porphyrin-type photosensitizers in treating hypoxic tumors, including combination with additional active components or therapies, which can significantly complicate the therapeutic process. Herein, we report a novel water-soluble porphyrin with O-linked cationic side chains, which exhibits good water solubility, high photostability, and significantly enhanced ROS generation efficacy in both type-I and type-II photodynamic pathways. We have also found that the end charges of side chains can dramatically affect the ROS generation of the porphyrin. The cationic porphyrin exhibited high in vitro PDT efficacy with low IC50 values both in normoxia and hypoxia. Hence, during in vivo PDT study, the cationic porphyrin displayed highly effective tumor ablation capability. This study demonstrates the power of side-chain chemistry in tuning the photodynamic property of porphyrin, which offers a new effective strategy to enhance the anticancer performance of photosensitizers for fulfilling the increasing demands for cancer therapy in clinics.
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Affiliation(s)
- Han Sun
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong266237, China
| | - Ruihua Guo
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong266237, China
| | - Yanhui Guo
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong266237, China
| | - Jitao Song
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong266237, China
| | - Zhiliang Li
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong266237, China
| | - Fengling Song
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong266237, China
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18
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Kim H, Yang M, Kwon N, Cho M, Han J, Wang R, Qi S, Li H, Nguyen V, Li X, Cheng H, Yoon J. Recent progress on photodynamic therapy and photothermal therapy. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Heejeong Kim
- Department of Chemistry and Nanoscience Ewha Womans University Seoul South Korea
| | - Mengyao Yang
- Department of Chemistry and Nanoscience Ewha Womans University Seoul South Korea
| | - Nahyun Kwon
- Department of Chemistry and Nanoscience Ewha Womans University Seoul South Korea
| | - Moonyeon Cho
- Department of Chemistry and Nanoscience Ewha Womans University Seoul South Korea
| | - Jingjing Han
- Department of Chemistry and Nanoscience Ewha Womans University Seoul South Korea
| | - Rui Wang
- Department of Chemistry and Nanoscience Ewha Womans University Seoul South Korea
| | - Sujie Qi
- Department of Chemistry and Nanoscience Ewha Womans University Seoul South Korea
| | - Haidong Li
- School of Bioengineering Dalian University of Technology Dalian China
| | - Van‐Nghia Nguyen
- Department of Chemistry and Nanoscience Ewha Womans University Seoul South Korea
| | - Xingshu Li
- College of Chemistry, State Key Laboratory of Photocatalysis for Energy and the Environment, Fujian Provincial Key Laboratory for Cancer Metastasis Chemoprevention and Chemotherapy Fuzhou University Fuzhou China
| | - Hong‐Bo Cheng
- State Key Laboratory of Organic−Inorganic Composites, Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering Beijing University of Chemical Technology Beijing P. R. China
| | - Juyoung Yoon
- Department of Chemistry and Nanoscience Ewha Womans University Seoul South Korea
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19
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Explorations into the meso-substituted BODIPY-based fluorescent probes for biomedical sensing and imaging. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Yue S, Ding H, Sun Y, Tang M, Wen J, Peng Y, Zheng L, Wang F, Shi Y, Cao Q. Simple Stimulus-Responsive Organic Long Persistent Luminescence Systems Based on Methoxy-Functionalized Triphenylphosphine. J Phys Chem Lett 2022; 13:10190-10197. [PMID: 36281994 DOI: 10.1021/acs.jpclett.2c02738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Triarylphosphine-based pure organic long persistent luminescence materials are rarely investigated because of their poor stability and low photoluminescence quantum yield. Herein, we demonstrate that the introduction of a methoxy group (TPP-o-3OMe) at the ortho position of triphenylphosphine (TPP) can essentially promote the n → π* transition and promote intersystem crossing to generate more triplet excitons. Simultaneously, generating abundant intramolecular and intermolecular hydrogen bonds to stable excited triplet excitons is beneficial, thereby causing high-efficiency phosphorescence emission (τp = 394.1 ms; Φp = 9.28%). Interestingly, it shows a good acid response to protonic acids and can often be cycled many times under the heating or ammonia fumigation conditions. This research provides a new idea for enriching the types of pure organic room-temperature phosphorescent materials, widening their applications in the fields of anticounterfeiting and smart response, and promotes the further development of this field.
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Affiliation(s)
- Shiwen Yue
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Huangting Ding
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Yitong Sun
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Meng Tang
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Jingyi Wen
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Ye Peng
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Liyan Zheng
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Feng Wang
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yonggang Shi
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
| | - Qiue Cao
- School of Chemical Science and Technology, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, Yunnan University, Kunming, Yunnan 650091, P. R. China
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21
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Vazquez-Chavez J, Aguilar-Granda A, Iglesias Arteaga MA. Synthesis and characterization of a fluorescent steroid dimer linked through C-19 by a 1,4-Bis(phenylethynyl)phenylene fragment. Steroids 2022; 187:109098. [PMID: 35964795 DOI: 10.1016/j.steroids.2022.109098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/27/2022] [Accepted: 08/09/2022] [Indexed: 11/20/2022]
Abstract
The synthesis and characterization of a dimer in which two nuclei of 3β-acetoxy-19-hydroxyandrost-5-en-17-one are linked by the fluorescent 1,4-bis(phenylethynyl)phenylene bridge attached to the oxygenated functions at positions C-19 of each steroid fragment is described. The compound was obtained in five steps and 23 % overall yield and showed a strong blue emission with a quantum yield of 0.66.
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Affiliation(s)
- Josué Vazquez-Chavez
- Facultad de Química, Universidad Nacional Autónoma de México. CDMX, 04510, México
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22
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Advancing biomedical applications via manipulating intersystem crossing. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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Phan Huu DK, Saseendran S, Dhali R, Franca LG, Stavrou K, Monkman A, Painelli A. Thermally Activated Delayed Fluorescence: Polarity, Rigidity, and Disorder in Condensed Phases. J Am Chem Soc 2022; 144:15211-15222. [PMID: 35944182 PMCID: PMC9413221 DOI: 10.1021/jacs.2c05537] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Indexed: 12/27/2022]
Abstract
We present a detailed and comprehensive picture of the photophysics of thermally activated delayed fluorescence (TADF). The approach relies on a few-state model, parametrized ab initio on a prototypical TADF dye, that explicitly accounts for the nonadiabatic coupling between electrons and vibrational and conformational motion, crucial to properly address (reverse) intersystem crossing rates. The Onsager model is exploited to account for the medium polarity and polarizability, with careful consideration of the different time scales of relevant degrees of freedom. TADF photophysics is then quantitatively addressed in a coherent and exhaustive approach that accurately reproduces the complex temporal evolution of emission spectra in liquid solvents as well as in solid organic matrices. The different rigidity of the two environments is responsible for the appearance in matrices of important inhomogeneous broadening phenomena that are ascribed to the intertwined contribution from (quasi)static conformational and dielectric disorder.
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Affiliation(s)
- D. K.
Andrea Phan Huu
- Department
of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124 Parma, Italy
| | - Sangeeth Saseendran
- Department
of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124 Parma, Italy
| | - Rama Dhali
- Department
of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124 Parma, Italy
| | | | - Kleitos Stavrou
- Department
of Physics, Durham University, South Road, Durham DH1 3LE, U.K.
| | - Andrew Monkman
- Department
of Physics, Durham University, South Road, Durham DH1 3LE, U.K.
| | - Anna Painelli
- Department
of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43124 Parma, Italy
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24
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Jiménez J, Prieto-Montero R, Serrano S, Stachelek P, Rebollar E, Maroto BL, Moreno F, Martinez-Martinez V, Pal R, García-Moreno I, de la Moya S. BINOL blocks as accessible triplet state modulators in BODIPY dyes. Chem Commun (Camb) 2022; 58:6385-6388. [PMID: 35543210 DOI: 10.1039/d2cc00991a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
BINOL moieties of different electronic demand are useful blocks for enabling the photo-production and modulation of triplet excited states in readily-accesible BINOL-based O-BODIPY dyes from standard F-BODIPY precursors. The rapid and rational development of smarter triplet-enabling BODIPY dyes on the basis of this strategy (e.g., TADF biomarker 4a or room temperature phosphor 4g) paves the way for advancing photonic applications based on organic triplet photosensitizers.
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Affiliation(s)
- Josué Jiménez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain.
| | - Ruth Prieto-Montero
- Departamento de Química Física, Universidad del País Vasco-EHU, Apartado 644, 48080, Bilbao, Spain
| | - Sergio Serrano
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain.
| | - Patrycja Stachelek
- Department of Chemistry, Durham University, Road, Durham DH1 3LE, Durham, UK
| | - Esther Rebollar
- Departamento de Sistemas de Baja Dimensionalidad, Superficies y Materia Condensada, Instituto de Química Física "Rocasolano", C.S.I.C., Serrano 119, 28006 Madrid, Spain.
| | - Beatriz L Maroto
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain.
| | - Florencio Moreno
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain.
| | | | - Robert Pal
- Department of Chemistry, Durham University, Road, Durham DH1 3LE, Durham, UK
| | - Inmaculada García-Moreno
- Departamento de Sistemas de Baja Dimensionalidad, Superficies y Materia Condensada, Instituto de Química Física "Rocasolano", C.S.I.C., Serrano 119, 28006 Madrid, Spain.
| | - Santiago de la Moya
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain.
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25
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Izumi S, Govindharaj P, Drewniak A, Crocomo PZ, Minakata S, de Sousa LE, de Silva P, Data P, Takeda Y. Comparative study of thermally activated delayed fluorescent properties of donor–acceptor and donor–acceptor–donor architectures based on phenoxazine and dibenzo[ a,j]phenazine. Beilstein J Org Chem 2022; 18:459-468. [PMID: 35558649 PMCID: PMC9062652 DOI: 10.3762/bjoc.18.48] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/21/2022] [Indexed: 11/23/2022] Open
Abstract
A new thermally activated delayed fluorescence (TADF) compound based on a donor–acceptor (D–A) architecture (D = phenoxazine; A = dibenzo[a,j]phenazine) has been developed, and its photophysical properties were characterized. The D–A compound is applicable as an emitting material for efficient organic light-emitting diodes (OLEDs), and its external quantum efficiency (EQE) exceeds the theoretical maximum of those with prompt fluorescent emitters. Most importantly, comparative study of the D–A molecule and its D–A–D counterpart from the viewpoints of the experiments and theoretical calculations revealed the effect of the number of the electron donor on the thermally activated delayed fluorescent behavior.
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Affiliation(s)
- Saika Izumi
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 5650871, Japan
| | | | - Anna Drewniak
- Faculty of Chemistry, Silesian University of Technology, Strzody 9, 44-100 Gliwice, Poland
| | | | - Satoshi Minakata
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 5650871, Japan
| | - Leonardo Evaristo de Sousa
- Department of Energy Conversion and Storage, Technical University of Denmark, Anker Engelunds Vej 301, 2800 Kongens Lyngby, Denmark
| | - Piotr de Silva
- Department of Energy Conversion and Storage, Technical University of Denmark, Anker Engelunds Vej 301, 2800 Kongens Lyngby, Denmark
| | - Przemyslaw Data
- Faculty of Chemistry, Silesian University of Technology, Strzody 9, 44-100 Gliwice, Poland
| | - Youhei Takeda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 5650871, Japan
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26
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Nguyen VN, Ha J, Jeong H, Cho M, Kim G, Yoon J. Rational Molecular Design of Efficient Heavy‐Atom‐Free Photosensitizers for Cancer Photodynamic Therapy. Chempluschem 2022; 87:e202200086. [DOI: 10.1002/cplu.202200086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 04/15/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Van-Nghia Nguyen
- Ewha Womans University Chemistry and Nanoscience KOREA, REPUBLIC OF
| | - Jeongsun Ha
- Ewha Womans University Chemistry and Nanoscience KOREA, REPUBLIC OF
| | - Hyunsun Jeong
- Ewha Womans University Chemistry and Nanoscience KOREA, REPUBLIC OF
| | - Moonyeon Cho
- Ewha Womans University Chemistry and Nanoscience KOREA, REPUBLIC OF
| | - Gyongmi Kim
- Ewha Womans University Chemistry and Nanoscience KOREA, REPUBLIC OF
| | - Juyoung Yoon
- Ewha Womans University Department of Chemistry 11-1 Daehyun-DongSeodaemun-Gu 120-750 Seoul KOREA, REPUBLIC OF
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27
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Liu Q, Yang M, Meng X, Han X, Nazare M, Xu Y, Hu HY, Zhang Q. Donor manipulation for constructing a pH sensing thermally activated delayed fluorescent probe to detect alkaliphiles. Talanta 2022; 246:123493. [PMID: 35489098 DOI: 10.1016/j.talanta.2022.123493] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/13/2022] [Accepted: 04/17/2022] [Indexed: 11/30/2022]
Abstract
pH homeostasis is essential for alkaliphiles, given their widespread use in biotechnological applications. However, quantitative monitoring of alkaline pH in alkaliphiles remains challenging. Here, we synthesized for the first time, a thermally activated delayed fluorescent (TADF) pH probe: NI-D-OH. Our probe exhibits a good linear relationship between fluorescence intensity and pH in the neutral to alkaline range (pH 7.0-8.6), as well as long-lived TADF emission. We further show that NI-D-OH can be used to monitor intracellular pH in living organisms, and evaluate the effect of Na+ on the pH homeostasis, demonstrating the potential for alkaline pH monitoring and time-resolved fluorescence imaging.
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Affiliation(s)
- Qian Liu
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Miao Yang
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China; School of Pharmaceutical Engineering and Key Laboratory of Structure-Based Drug Design & Discovery (Ministry of Education), Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Xiangchuan Meng
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Xiaowan Han
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Marc Nazare
- Medicinal Chemistry, Leibniz-Forschungsinstitut für Molekulare Pharmakologie Berlin, 13125, Berlin, Germany
| | - Youjun Xu
- School of Pharmaceutical Engineering and Key Laboratory of Structure-Based Drug Design & Discovery (Ministry of Education), Shenyang Pharmaceutical University, Shenyang, 110016, China.
| | - Hai-Yu Hu
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China.
| | - Qingyang Zhang
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China.
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28
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Chen TG, Zhang XQ, Ge JF, Xu YJ, Sun R. Thiocarbonyl photosensitizer, a feasible way to eliminate the photosensitizer residues in photodynamic therapy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 270:120783. [PMID: 34995850 DOI: 10.1016/j.saa.2021.120783] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 12/03/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
Photodynamic therapy (PDT) has been successfully applied in clinical treatment several years. However, after finished treatment process the residual photosensitizer will spread throughout body, which forces patients stay in the dark room to avoid exposure in sunlight several weeks. Therefore, develop degradable photosensitizer could effectively eliminate this inconvenience. In the past, researchers have developed degradable photosensitizers based on supramolecular structure. In this study, we achieved the same effect in small molecule level. Three thiocarbonyl photosensitizers (PS) have high photogenerated 1O2 quantum yield and can be photodegraded by laser irradiation within 15 min. And due to its high phototoxicity and low toxicity, thiocarbonyl PS still maintains its high phototoxicity. Especially, mitochondrial targeting PS 1a has better properties than many BODIPY or cyanine heavy-atom-free photosensitizers. It only needs 1 μM to reduce HeLa cell activity to 30%. Finally the thiocarbonyl PS provided a convenient way to solve the PS residue problem without sacrificing PDT efficiency.
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Affiliation(s)
- Tian-Ge Chen
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
| | - Xiao-Qing Zhang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Jian-Feng Ge
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
| | - Yu-Jie Xu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China.
| | - Ru Sun
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, Suzhou 215123, China.
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29
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Sandoval-Pauker C, Santander-Nelli M, Dreyse P. Thermally activated delayed fluorescence in luminescent cationic copper(i) complexes. RSC Adv 2022; 12:10653-10674. [PMID: 35425025 PMCID: PMC8985689 DOI: 10.1039/d1ra08082b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 03/27/2022] [Indexed: 01/02/2023] Open
Abstract
In this work, the photophysical characteristics of [Cu(N^N)2]+ and [Cu(N^N)(P^P)]+ complexes were described. The concept of thermally activated delayed fluorescence (TADF) and its development throughout the years was also explained. The importance of ΔE (S1-T1) and spin-orbital coupling (SOC) values on the TADF behavior of [Cu(N^N)2]+ and [Cu(N^N)(P^P)]+ complexes is discussed. Examples of ΔE (S1-T1) values reported in the literature were collected and some trends were proposed (e.g. the effect of the substituents at the 2,9 positions of the phenanthroline ligand). Besides, the techniques (or calculation methods) used for determining ΔE (S1-T1) values were described. The effect of SOC in TADF was also discussed, and examples of the determination of SOC values by DFT and TD-DFT calculations are provided. The last chapter covers the applications of [Cu(N^N)2]+ and [Cu(N^N)(P^P)]+ TADF complexes and the challenges that are still needed to be addressed to ensure the industrial applications of these compounds.
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Affiliation(s)
- Christian Sandoval-Pauker
- Department of Chemistry and Biochemistry, University of Texas at El Paso El Paso TX 79968 USA
- Departamento de Química, Universidad Técnica Federico Santa María Av. España 1680 Casilla 2390123 Valparaíso Chile
| | - Mireya Santander-Nelli
- Advanced Integrated Technologies (AINTECH) Chorrillo Uno, Parcela 21 Lampa Santiago Chile
- Centro Integrativo de Biología y Química Aplicada (CIBQA), Universidad Bernardo O'Higgins General Gana 1702 Santiago 8370854 Chile
| | - Paulina Dreyse
- Departamento de Química, Universidad Técnica Federico Santa María Av. España 1680 Casilla 2390123 Valparaíso Chile
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30
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Xiao YF, Chen WC, Chen JX, Lu G, Tian S, Cui X, Zhang Z, Chen H, Wan Y, Li S, Lee CS. Amplifying Free Radical Generation of AIE Photosensitizer with Small Singlet-Triplet Splitting for Hypoxia-Overcoming Photodynamic Therapy. ACS APPLIED MATERIALS & INTERFACES 2022; 14:5112-5121. [PMID: 35048696 DOI: 10.1021/acsami.1c23797] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Type-I photodynamic therapy (PDT) with less oxygen consumption shows great potential for overcoming the vicious hypoxia typically observed in solid tumors. However, the development of type-I PDT is hindered by insufficient radical generation and the ambiguous design strategy of type-I photosensitizers (PSs). Therefore, developing highly efficient type-I PSs and unveiling their structure-function relationship are still urgent and challenging. Herein, we develop two phenanthro[9,10-d]imidazole derivatives (AQPO and AQPI) with aggregation-induced emission (AIE) characteristics and boost their reactive oxygen species (ROS) generation efficiency by reducing singlet-triplet splitting (ΔEST). Both AQPO and AQPI show ultrasmall ΔEST values of 0.09 and 0.12 eV, respectively. By incorporating electron-rich anisole, the categories of generated ROS by AIE PSs are changed from type-II (singlet oxygen, 1O2) to type-I (superoxide anion radical, O2•- and hydroxyl radical, •OH). We demonstrate that the assembled AQPO nanoparticles (NPs) achieve a 3.2- and 2.9-fold increase in the O2•- and •OH generation efficiencies, respectively, compared to those of AQPI NPs (without anisole) in water, whereas the 1O2 generation efficiency of AQPO NPs is lower (0.4-fold) than that of AQPI NPs. The small ΔEST and anisole group endow AQPO with an excellent capacity for type-I ROS generation. In vitro and in vivo experiments show that AQPO NPs achieve an excellent hypoxia-overcoming PDT effect by efficiently eliminating tumor cells upon white light irradiation with good biosafety.
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Affiliation(s)
- Ya-Fang Xiao
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 000000 Hong Kong SAR, P. R. China
| | - Wen-Cheng Chen
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 000000 Hong Kong SAR, P. R. China
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Jia-Xiong Chen
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 000000 Hong Kong SAR, P. R. China
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Guihong Lu
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, 1 North Second Street, Zhong Guan Cun, Beijing 100190, China
| | - Shuang Tian
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 000000 Hong Kong SAR, P. R. China
| | - Xiao Cui
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 000000 Hong Kong SAR, P. R. China
| | - Zhen Zhang
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 000000 Hong Kong SAR, P. R. China
| | - Huan Chen
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 000000 Hong Kong SAR, P. R. China
| | - Yingpeng Wan
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 000000 Hong Kong SAR, P. R. China
| | - Shengliang Li
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, P. R. China
| | - Chun-Sing Lee
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 000000 Hong Kong SAR, P. R. China
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31
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CuOx/OMS-2 catalyzed synthesis of 4,5-dicyano-1H-imidazoles moiety: Directly access to d-A system for AIE-active mechanofluorochromic materials. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131791] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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32
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Portable electrochemical sensing methodologies for on-site detection of pesticide residues in fruits and vegetables. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214305] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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33
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A New Entry to Purely Organic Thermally Activated Delayed Fluorescence Emitters Based on Pyrido[2,3‐b]pyrazine–Dihydrophenazasilines Donor–Acceptor Dyad. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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34
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Li Z, Zhang JR, Tian XK, Yang S, Chen S, Zhou H, Yang XG. Green-/NIR-Light-Controlled Rapid Photochromism Featuring Reversible Thermally Activated Delayed Fluorescence and Photoelectronic Switching. Chem Sci 2022; 13:9381-9386. [PMID: 36093018 PMCID: PMC9383870 DOI: 10.1039/d2sc02662g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 07/18/2022] [Indexed: 11/21/2022] Open
Abstract
Fluorescent dithienylethene based photochromic materials have been attracting considerable attention owing to their wide applications in biological and material sciences. However, limitations of detrimental UV irradiation for photocyclization, short emission...
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Affiliation(s)
- Ziyong Li
- College of Chemistry and Chemical Engineering, College of Food and Drug, Luoyang Normal University Luoyang 471934 P. R. China
| | - Ji-Rui Zhang
- College of Chemistry and Chemical Engineering, College of Food and Drug, Luoyang Normal University Luoyang 471934 P. R. China
| | - Xu-Ke Tian
- College of Chemistry and Chemical Engineering, College of Food and Drug, Luoyang Normal University Luoyang 471934 P. R. China
| | - Shuren Yang
- College of Chemistry and Chemical Engineering, College of Food and Drug, Luoyang Normal University Luoyang 471934 P. R. China
| | - Si Chen
- College of Chemistry and Chemical Engineering, College of Food and Drug, Luoyang Normal University Luoyang 471934 P. R. China
| | - Hui Zhou
- College of Chemistry and Chemical Engineering, College of Food and Drug, Luoyang Normal University Luoyang 471934 P. R. China
| | - Xiao-Gang Yang
- College of Chemistry and Chemical Engineering, College of Food and Drug, Luoyang Normal University Luoyang 471934 P. R. China
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35
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Song Y, Tian M, Yu R, He L. Through-Space Charge-Transfer Emitters Developed by Fixing the Acceptor for High-Efficiency Thermally Activated Delayed Fluorescence. ACS APPLIED MATERIALS & INTERFACES 2021; 13:60269-60278. [PMID: 34881866 DOI: 10.1021/acsami.1c17707] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Through-space charge-transfer (TSCT) emitters have been extensively explored for thermally activated delayed fluorescence (TADF), but arranging various donors and acceptors into rigid cofacial conformations for various efficient TSCT TADF emitters has remained challenging. Here, we report a "fixing acceptor" design to reach various efficient TSCT TADF emitters. By chemically fixing the acceptor (benzophenone) with a rigid spiro-structure and cofacially aligning various donors with the fixed acceptor, a series of efficient TSCT TADF emitters have been developed. Single-crystal structures and theoretical calculations have verified closely packed cofacial donor/acceptor conformations and favorable TSCT in the emitters. In doped films, the emitters afford sky blue to yellow TADF emission, with high photoluminescence efficiencies up to 0.92 and reverse intersystem crossing rates up to 1.0 × 106 s-1. Organic light-emitting diodes using the emitters afford sky blue to yellow electroluminescence with high external quantum efficiencies up to 20.9%. The work opens a new avenue toward a wide variety of efficient TSCT TADF emitters.
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Affiliation(s)
- Yongjun Song
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China
| | - Mingxing Tian
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China
| | - Renyou Yu
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China
| | - Lei He
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China
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36
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Ho P, Lee S, Kam C, Zhu J, Shan G, Hong Y, Wong W, Chen S. Fluorescence Imaging and Photodynamic Inactivation of Bacteria Based on Cationic Cyclometalated Iridium(III) Complexes with Aggregation-Induced Emission Properties. Adv Healthc Mater 2021; 10:e2100706. [PMID: 34296536 DOI: 10.1002/adhm.202100706] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/17/2021] [Indexed: 12/27/2022]
Abstract
Antibacterial photodynamic therapy (PDT) is one of the emerging methods for curbing multidrug-resistant bacterial infections. Effective fluorescent photosensitizers with dual functions of bacteria imaging and PDT applications are highly desirable. In this study, three cationic and heteroleptic cyclometalated Ir(III) complexes with the formula of [Ir(CˆN)2 (NˆN)][PF6 ] are prepared and characterized. These Ir(III) complexes named Ir(ppy)2 bP, Ir(1-pq)2 bP, and Ir(2-pq)2 bP are comprised of three CˆN ligands (i.e., 2-phenylpyridine (ppy), 1-phenylisoquinoline (1-pq), and 2-phenylquinoline (2-pq)) and one NˆN bidentate co-ligand (bP). The photophysical characterizations demonstrate that these Ir(III) complexes are red-emitting, aggregation-induced emission active luminogens. The substitution of phenylpyridine with phenylquinoline isomers in the molecules greatly enhances their UV and visible-light absorbance as well as the photoinduced reactive oxygen species (ROS) generation ability. All three Ir(III) complexes can stain both Gram-positive and Gram-negative bacteria efficiently. Interestingly, even though Ir(1-pq)2 bP and Ir(2-pq)2 bP are constitutional isomers with very similar structures and similar ROS generation ability in buffer, the former eradicates bacteria much more effectively than the other through white light-irradiated photodynamic inactivation. This work will provide valuable information on the rational design of Ir(III) complexes for fluorescence imaging and efficient photodynamic inactivation of bacteria.
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Affiliation(s)
- Po‐Yu Ho
- Ming Wai Lau Centre for Reparative Medicine Karolinska Institutet Hong Kong P. R. China
| | - Sin‐Ying Lee
- Ming Wai Lau Centre for Reparative Medicine Karolinska Institutet Hong Kong P. R. China
| | - Chuen Kam
- Ming Wai Lau Centre for Reparative Medicine Karolinska Institutet Hong Kong P. R. China
| | - Junfei Zhu
- Ming Wai Lau Centre for Reparative Medicine Karolinska Institutet Hong Kong P. R. China
| | - Guo‐Gang Shan
- Institute of Functional Materials Chemistry and National & Local United Engineering Lab for Power Battery Faculty of Chemistry Northeast Normal University Changchun 130024 P. R. China
| | - Yuning Hong
- Department of Chemistry and Physics La Trobe Institute for Molecular Science La Trobe University Melbourne Victoria 3086 Australia
| | - Wai‐Yeung Wong
- Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University Hung Hom Hong Kong P. R. China
| | - Sijie Chen
- Ming Wai Lau Centre for Reparative Medicine Karolinska Institutet Hong Kong P. R. China
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37
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Jin ZY, Fatima H, Zhang Y, Shao Z, Chen XJ. Recent Advances in Bio‐Compatible Oxygen Singlet Generation and Its Tumor Treatment. ADVANCED THERAPEUTICS 2021. [DOI: 10.1002/adtp.202100176] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zheng Yang Jin
- The First Affiliated Hospital of Wenzhou Medical University Wenzhou Zhejiang 325015 P. R. China
| | - Hira Fatima
- Western Australia School of Mines: Minerals Energy and Chemical Engineering (WASM‐MECE) Curtin University Perth Western Australia 6102 Australia
| | - Yue Zhang
- The First Affiliated Hospital of Wenzhou Medical University Wenzhou Zhejiang 325015 P. R. China
| | - Zongping Shao
- Western Australia School of Mines: Minerals Energy and Chemical Engineering (WASM‐MECE) Curtin University Perth Western Australia 6102 Australia
- State Key Laboratory of Materials‐Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University Nanjing Jiangsu 211816 P. R. China
| | - Xiang Jian Chen
- The First Affiliated Hospital of Wenzhou Medical University Wenzhou Zhejiang 325015 P. R. China
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38
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Ma H, Long S, Cao J, Xu F, Zhou P, Zeng G, Zhou X, Shi C, Sun W, Du J, Han K, Fan J, Peng X. New Cy5 photosensitizers for cancer phototherapy: a low singlet-triplet gap provides high quantum yield of singlet oxygen. Chem Sci 2021; 12:13809-13816. [PMID: 34760166 PMCID: PMC8549779 DOI: 10.1039/d1sc04570a] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 09/21/2021] [Indexed: 01/12/2023] Open
Abstract
Highly efficient triplet photosensitizers (PSs) have attracted increasing attention in cancer photodynamic therapy where photo-induced reactive oxygen species (ROSs, such as singlet oxygen) are produced via singlet–triplet intersystem crossing (ISC) of the excited photosensitizer to kill cancer cells. However, most PSs exhibit the fatal defect of a generally less-than-1% efficiency of ISC and low yield of ROSs, and this defect strongly impedes their clinical application. In the current work, a new strategy to enhance the ISC and high phototherapy efficiency has been developed, based on the molecular design of a thio-pentamethine cyanine dye (TCy5) as a photosensitizer. The introduction of an electron-withdrawing group at the meso-position of TCy5 could dramatically reduce the singlet–triplet energy gap (ΔEst) value (from 0.63 eV to as low as 0.14 eV), speed up the ISC process (τISC = 1.7 ps), prolong the lifetime of the triplet state (τT = 319 μs) and improve singlet oxygen (1O2) quantum yield to as high as 99%, a value much higher than those of most reported triplet PSs. Further in vitro and in vivo experiments have shown that TCy5-CHO, with its efficient 1O2 generation and good biocompatibility, causes an intense tumor ablation in mice. This provides a new strategy for designing ideal PSs for cancer photo-therapy. The electron-withdrawing group at the meso-position of Thio-Cy5 could dramatically reduce the singlet–triplet energy gap, and speed up the intersystem crossing process.![]()
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Affiliation(s)
- He Ma
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian 116024 China
| | - Saran Long
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian 116024 China .,State Key Laboratory of Fine Chemicals and Shenzhen Research Institute, Dalian University of Technology Dalian 116024 China
| | - Jianfang Cao
- School of Chemical Engineering, Dalian University of Technology Panjin Campus Panjin 124221 China
| | - Feng Xu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian 116024 China
| | - Panwang Zhou
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University Qingdao 266237 China
| | - Guang Zeng
- State Key Laboratory of Catalysis, Dalian Institute of Chemical and Physics, Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
| | - Xiao Zhou
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian 116024 China
| | - Chao Shi
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian 116024 China
| | - Wen Sun
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian 116024 China .,State Key Laboratory of Fine Chemicals and Shenzhen Research Institute, Dalian University of Technology Dalian 116024 China
| | - Jianjun Du
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian 116024 China .,State Key Laboratory of Fine Chemicals and Shenzhen Research Institute, Dalian University of Technology Dalian 116024 China
| | - Keli Han
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences 457, Zhongshan Road Dalian 116023 China
| | - Jiangli Fan
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian 116024 China .,State Key Laboratory of Fine Chemicals and Shenzhen Research Institute, Dalian University of Technology Dalian 116024 China
| | - Xiaojun Peng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian 116024 China .,State Key Laboratory of Fine Chemicals and Shenzhen Research Institute, Dalian University of Technology Dalian 116024 China
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39
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Deng S, Lei Q, Cai J, Jiang Y, Shen J. A Novel Coumarin-based Fluorescent Probe with Aggregation Induced Emission for Detecting CN - and its Applications in Bioimaging. J Fluoresc 2021; 31:1751-1758. [PMID: 34495469 DOI: 10.1007/s10895-021-02817-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/27/2021] [Indexed: 11/28/2022]
Abstract
Although cyanogen ion (CN-) plays important role in industry which also bring acute environmental pollution. More serious, trace CN- enters the human body can cause serious consequences and even death. Therefore, it is of great significance to detect trace CN- with high sensitivity. Herein, a novel aggregation-induced emission (AIE) probe C-BH was synthesized based on coumarin matrix. Probe C-BH showed high selectivity and sensitivity toward CN- by dual channel response due to the excited state intramolecular proton transfer (ESIPT). The low detection limit was calculated to be 0.05 µM. Moreover, probe C-BH was successfully used for imaging CN- in living cells and zebrafish due to its low toxicity and excellent optical properties.
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Affiliation(s)
- Sha Deng
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Qiao Lei
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Junzhe Cai
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Yuliang Jiang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China.
| | - Jian Shen
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Bio-Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China.
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40
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Nguyen VN, Ha J, Cho M, Li H, Swamy K, Yoon J. Recent developments of BODIPY-based colorimetric and fluorescent probes for the detection of reactive oxygen/nitrogen species and cancer diagnosis. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213936] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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41
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Zhou Y, Li Y, Zhang R, Zhao D, Yan Q. White Light Luminescence from a Homo-conjugated Molecule with Thermally Activated Delayed Fluorescence. Chem Asian J 2021; 16:1893-1896. [PMID: 34014616 DOI: 10.1002/asia.202100397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/19/2021] [Indexed: 11/07/2022]
Abstract
Luminophores with tunable emission properties are appealing due to various applications. Among those properties, thermally activated delayed fluorescence (TADF) has been attracting enormous research interests. Herein, we synthesized a 9,9'-spirobifluorene based homo-conjugated molecule 1, which connects a diphenylamino moiety as electron donor and a naphthalimide group as electron acceptor via 2,2'-positions of spirofluorene. Compound 1 displays dual emission behaviour with both blue and orange fluorescence. The one orange fluorescence around 555 nmshows sensitivity to oxygen and a prolonged lifetime of 284 ns in degassed toluene. Such characteristics imply TADF nature for this emission from a charge-transfer excited state. The other emission at 440 nm with blue colour displayed resistance to oxygen quenching and a normal fluorescence lifetime of 1.5 ns. Compared with control molecule, this emission band is assigned as conventional fluorescence from a localized excited state. In addition, dual emission property allows molecule 1 to be modulated to emit white photoluminescence in thin film with a CIE color coordinate of (0.25, 0.33).
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Affiliation(s)
- Ying Zhou
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Yao Li
- Beijing National Laboratory for Molecular Sciences, Centre for Soft Matter Science and Engineering, Key Lab of Polymer Chemistry & Physics of the Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, P. R. China
| | - Rong Zhang
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Dahui Zhao
- Beijing National Laboratory for Molecular Sciences, Centre for Soft Matter Science and Engineering, Key Lab of Polymer Chemistry & Physics of the Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, P. R. China
| | - Qifan Yan
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
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42
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Meng FL, Qian HL, Yan XP. Conjugation-regulating synthesis of high photosensitizing activity porphyrin-based covalent organic frameworks for photodynamic inactivation of bacteria. Talanta 2021; 233:122536. [PMID: 34215039 DOI: 10.1016/j.talanta.2021.122536] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/11/2021] [Accepted: 05/15/2021] [Indexed: 12/20/2022]
Abstract
Preparation of porphyrin-based covalent organic frameworks (Por-COFs) with high photosensitizing activity for photodynamic inactivation of bacteria is of great challenge, but significant for economy and human health. Herein, we show a conjugation-regulating strategy to design and synthesize Por-COFs with high photosensitizing activity for the photodynamic inactivation of bacteria. Terephthalaldehyde (Da), 2,5-Dihydroxyterephthalaldehyde (Dha), and 2,5-Diethoxyterephthalaldehyde (Deta) with different conjugation degrees are selected to condense with 5,10,15,20-Tetrakis(4-aminophenyl)porphyrin (Tph) to synthesize COF-366, DhaTph, and JNU-2, respectively. The higher conjugation of Dha and Deta than Da leads to the higher conjugation of DhaTph and JNU-2, respectively. Moreover, the hydroxyl group in Dha and the ethoxy group in Deta further expand the conjugation of DhaTph and JNU-2 via the formation of intralayer extended π-cloud delocalization and p-π conjunction, respectively. The extension of conjugation for DhaTph and JNU-2 results in the increase of intersystem crossing process and significantly improves their photosensitizing activity. Furthermore, JNU-2 with the highest photosensitizing activity exhibits superior antibacterial effects toward Staphylococcus aureus (99.1%) and Escherichia coli (96.8%). This study offers a new conjugation-regulating strategy for designing high photosensitizing activity of Por-COFs for the inactivation of bacteria.
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Affiliation(s)
- Fan-Lin Meng
- Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Hai-Long Qian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China; Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.
| | - Xiu-Ping Yan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China; Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China; Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
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43
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Kitagawa Y, Naito A, Fushimi K, Hasegawa Y. Bright sky-blue fluorescence with high color purity: assembly of luminescent diphenyl-anthracene lutetium-based coordination polymer. RSC Adv 2021; 11:6604-6606. [PMID: 35423194 PMCID: PMC8694909 DOI: 10.1039/d0ra10795f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 02/01/2021] [Indexed: 11/21/2022] Open
Abstract
Pure sky-blue fluorescence (FWHM: 50 nm) from lutetium-based coordination polymer with diphenyl-anthracene derivative is demonstrated for the first time. The observed high color purity is based on the tightly packed crystal structure of the coordination polymer with multiple CH-F interactions.
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Affiliation(s)
- Yuichi Kitagawa
- Faculty of Engineering, Hokkaido University Kita-13, Nishi-8 Sapporo Hokkaido 060-8628 Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University Sapporo Hokkaido 001-0021 Japan
| | - Ayu Naito
- Graduate School of Chemical Sciences and Engineering, Hokkaido University Kita-13, Nishi-8 Chome Sapporo Hokkaido 060-8628 Japan
| | - Koji Fushimi
- Faculty of Engineering, Hokkaido University Kita-13, Nishi-8 Sapporo Hokkaido 060-8628 Japan
| | - Yasuchika Hasegawa
- Faculty of Engineering, Hokkaido University Kita-13, Nishi-8 Sapporo Hokkaido 060-8628 Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University Sapporo Hokkaido 001-0021 Japan
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44
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Sawminathan S, Munusamy S, Jothi D, Iyer SK. Phenanthridine‐Based Donor/Acceptor Fluorescent Dyes: Synthesis, Photophysical Properties and Fluorometric Sensing of Biogenic Primary Amines. ChemistrySelect 2021. [DOI: 10.1002/slct.202004040] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Sathish Sawminathan
- Chemistry department School of Advanced Sciences Vellore Institute of Technology Vellore 632014 Tamilnadu India
| | - Sathishkumar Munusamy
- Institute of chemical biology and nanomedicine State key laboratory of chemo/Bio-sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P.R.China
| | - Dhanapal Jothi
- Chemistry department School of Advanced Sciences Vellore Institute of Technology Vellore 632014 Tamilnadu India
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45
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Nguyen VN, Yan Y, Zhao J, Yoon J. Heavy-Atom-Free Photosensitizers: From Molecular Design to Applications in the Photodynamic Therapy of Cancer. Acc Chem Res 2021; 54:207-220. [PMID: 33289536 DOI: 10.1021/acs.accounts.0c00606] [Citation(s) in RCA: 243] [Impact Index Per Article: 81.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Photodynamic therapy (PDT) is a clinically approved therapeutic modality that has shown great potential for the treatment of cancers owing to its excellent spatiotemporal selectivity and inherently noninvasive nature. However, PDT has not reached its full potential, partly due to the lack of ideal photosensitizers. A common molecular design strategy for effective photosensitizers is to incorporate heavy atoms into photosensitizer structures, causing concerns about elevated dark toxicity, short triplet-state lifetimes, poor photostability, and the potentially high cost of heavy metals. To address these drawbacks, a significant advance has been devoted to developing advanced smart photosensitizers without the use of heavy atoms to better fit the clinical requirements of PDT. Over the past few years, heavy-atom-free nonporphyrinoid photosensitizers have emerged as an innovative alternative class of PSs due to their superior photophysical and photochemical properties and lower expense. Heavy-atom-free nonporphyrinoid photosensitizers have been widely explored for PDT purposes and have shown great potential for clinical oncologic applications. Although many review articles about heavy-atom-free photosensitizers based on porphyrinoid structure have been published, no specific review articles have yet focused on the heavy-atom-free nonporphyrinoid photosensitizers.In this account, the specific concept related to heavy-atom-free photosensitizers and the advantageous properties of heavy-atom-free photosensitizers for cancer theranostics will be briefly introduced. In addition, recent progress in the development of heavy-atom-free photosensitizers, ranging from molecular design approaches to recent innovative types of heavy-atom-free nonporphyrinoid photosensitizers, emphasizing our own research, will be presented. The main molecular design approaches to efficient heavy-atom-free PSs can be divided into six groups: (1) the approach based on traditional tetrapyrrole structures, (2) spin-orbit charge-transfer intersystem crossing (SOCT-ISC), (3) reducing the singlet-triplet energy gap (ΔEST), (4) the thionation of carbonyl groups of conventional fluorophores, (5) twisted π-conjugation system-induced intersystem crossing, and (6) radical-enhanced intersystem crossing. The innovative types of heavy-atom-free nonporphyrinoid photosensitizers and their applications in cancer diagnostics and therapeutics will be discussed in detail in the third section. Finally, the challenges that need to be addressed to develop optimal heavy-atom-free photosensitizers for oncologic photodynamic therapy and a perspective in this research field will be provided. We believe that this review will provide general guidance for the future design of innovative photosensitizers and spur preclinical and clinical studies for PDT-mediated cancer treatments.
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Affiliation(s)
- Van-Nghia Nguyen
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
| | - Yuxin Yan
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 2 Ling Gong Road, Dalian 116024, P. R. China
| | - Jianzhang Zhao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 2 Ling Gong Road, Dalian 116024, P. R. China
| | - Juyoung Yoon
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea
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46
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Zhou Y, Zhang D, He G, Liu C, Tu Y, Li X, Zhang Q, Wu X, Liu R. A lysosomal targeted NIR photosensitizer for photodynamic therapy and two-photon fluorescence imaging. J Mater Chem B 2021; 9:1009-1017. [PMID: 33427275 DOI: 10.1039/d0tb02692a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A lysosome-targeting NIR photosensitizer has been developed for two-photon fluorescence imaging and imaging-guided photodynamic therapy via lysosomal-damage-mediated apoptosis.
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Affiliation(s)
- Yuping Zhou
- School of Pharmaceutical Science
- Southern Medical University
- Guangzhou
- China
- Guangdong Provincial Key Laboratory of Medical Image Processing
| | - Di Zhang
- Guangdong Provincial Key Laboratory of Medical Image Processing
- School of Biomedical Engineering
- Southern Medical University
- Guangzhou
- China
| | - Genghan He
- Guangdong Provincial Key Laboratory of Medical Image Processing
- School of Biomedical Engineering
- Southern Medical University
- Guangzhou
- China
| | - Chuang Liu
- Guangdong Provincial Key Laboratory of Medical Image Processing
- School of Biomedical Engineering
- Southern Medical University
- Guangzhou
- China
| | - Yinuo Tu
- Department of Thoracic Surgery, Huiqiao Medical Center, Nanfang Hospital
- Southern Medical University
- Guangzhou
- China
| | - Xiang Li
- Department of Thoracic Surgery, Huiqiao Medical Center, Nanfang Hospital
- Southern Medical University
- Guangzhou
- China
| | - Qianbing Zhang
- Cancer Research Institute
- School of Basic Medical Sciences
- Southern Medical University
- Guangzhou
- China
| | - Xu Wu
- Department of Thoracic Surgery, Huiqiao Medical Center, Nanfang Hospital
- Southern Medical University
- Guangzhou
- China
| | - Ruiyuan Liu
- School of Pharmaceutical Science
- Southern Medical University
- Guangzhou
- China
- Guangdong Provincial Key Laboratory of Medical Image Processing
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